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ZT230F Low Power 5V 1000kbps RS232 Transceivers
Zywyn Corporation
ZT230F
Zywyn
Features
ZT207F, ZT208F ZT211F, ZT213F
Low Power 5V 1000kbps RS232 Transceivers
General Description
The ZT230F series devices are 5V powered EIA/TIA-232 and V.28/V.24 communication interfaces with low power requirements. They consist of the combinations of five line drivers, five line receivers and the proprietary switch-capacitor regulated voltage converters. The ZT211F and ZT213F feature a low power shutdown mode which draws as little current as 1A typical with receiver outputs tri-stated and wake-up function. These devices operate from a single 5V power supply at the guaranteed data rate of 1000k bits/sec with enhanced electrostatic discharge (ESD) protection in all RS232 I/O pins exceeding 15kV HBM.
* Meets EIA/TIA-232F and CCITT V.28/V.24 specifications for VCC at +5V 10% * Low Quiescent Current - 3mA typ., 6mA max. * Low Shutdown Current (where applicable) 1A typical, 10A max. * Guaranteed Standard Data Rate 1000kbps * Proprietary Switch-Capacitor Regulated Voltage www..com Converters (patent pending) * Wake Up Feature in Shutdown Mode * Tri-State Receiver Outputs * Latch-up Free * ESD Protection for RS-232 I/O's 15kV Human Body Model (HBM) * Drop-in Replacements for SP207EH, SP208EH, SP211EH, SP213EH * Standard Data Rate at 250kbps Available on ZT230E Series
Applications
* * * * * * * Battery-Powered Applications Notebooks, Subnotebooks, and Palmtops Industrial and Embedded PCs Data Cables for Cell Phones and PDAs Terminal Adapters and POS terminals Peripherals interface Routers and HUBs
Now Available in Green Package Option Product Selection Guide And Cross Reference
Part Number ZT207F ZT208F ZT211F ZT213F # 0f RS232 Tx 5 4 4 4 # of RS232 Rx 3 4 5 5 TTL # of Rx # of Shut Wake Triactive in 0.1F Down Up State SD caps 0 0 0 2 4 4 4 4 No No Yes Yes No No No Yes No No Yes Yes Data Rate (kbps) 1000 1000 1000 1000 ESD HBM on RS232 I/O 15kV 15kV 15kV 15kV Pin-to-Pin Cross SIPEX SP207EH SP208EH SP211EH SP213EH Pin-to-Pin Cross MAXIM n/a n/a n/a n/a
1 Zywyn Corporation * Tel (408) 733-3225 * Fax (408) 733-3206 * Email sales@zywyn.com * www.zywyn.com
Zywyn
Specifications subject to change without notice
May 2006
rev. 1.6
Zywyn Corporation Absolute Maximum Ratings
These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. Power Supply, (VCC).................................... -0.3V to +6.0V V+ ............................................................... -0.3V to +7.0V V- ................................................................ +0.3V to -7.0V |V+| + |V-| .............................................................. +13.0V ICC (DC VCC or GND current) .................................100mA Input Voltages TxIN, SHUTDOWN, EN ............................... -0.3V to +6.0V www..com RxIN............................................................................ 25V Output Voltages TxOUT ........................................................................ 12V RxOUT............................................... -0.3V to (VCC +0.3V) Short-Circuit Duration TxOUT ...............................................................Continuous Operating Temperature...............................-40C to +85C Storage Temperature ................................-65C to +150C Power Dissipation Per Package 24-pin SSOP (derate 8.00mW/C above +70C).... 640mW 24-pin WSOIC (derate 11.76mW/C above +70C) ......... ........................................................................... 941mW 28-pin SSOP (derate 9.52mW/C above +70C)... 762mW 28-pin WSOIC (derate 12.50mW/C above +70C) ..... 1W
ZT230F Storage Considerations
Storage in a low humidity environment is preferred. Large high density plastic packages are moisture sensitive and should be stored in Dry Vapor Barrier Bags. Prior to usage, the parts should remain bagged and stored below 40C and 60%RH. If the parts are removed from the bag, they should be used within 48 hours or stored in an environment at or below 20%RH. If the above conditions cannot be followed, the parts should be baked for four hours at 125C in order remove moisture prior to soldering. Zywyn ships product in Dry Vapor Barrier Bags with a humidity indicator card and desiccant pack. The humidity indicator should be below 30%RH. The information furnished by Zywyn has been carefully reviewed for accuracy and reliability. Its application or use, however, is solely the responsibility of the user. No responsibility of the use of this information become part of the terms and conditions of any subsequent sales agreement with Zywyn. Specifications are subject to change without the responsibility for any infringement of patents or other rights of third parties which may result from its use. No license or proprietary rights are granted by implication or otherwise under any patent or patent rights of Zywyn Corporation.
Zywyn
Specifications subject to change without notice
2
May 2006
rev. 1.6
Zywyn Corporation Electrical Characteristics
ZT230F
Unless otherwise stated, VCC = +5.0V, TA = Tmin to Tmax, C1 to C4 = 0.1F, typical values apply at VCC = +5.0V and TA = 25C. Parameter TTL Logic Input TTL Logic Output RS-232 Input RS-232 Output Charge Pump Pin Power Pin Charge Pump Caps Temp 0C to +70C Temp -40C to +85C VCC Voltage Range Supply Current
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Condition T1IN, T2IN, T3IN, T4IN, T5IN, EN, SD R1OUT, R2OUT, R3OUT, R4OUT, R5OUT R1IN, R2IN, R3IN, R4IN, R5IN T1OUT, T2OUT, T3OUT, T4OUT, T5OUT C1P, C1N, C2P, C2N VCC, VGND, VDD, VSS C1P, C1N, C2P, C2N Commercial Grade Industrial Grade VCC = +5.0V Supply TTL Inputs = VCC/GND, RS-232 Input = float, TA = 25C VCC = +5.0V 10%, No load on transmitter outputs TTL Inputs = VCC/GND, RS-232 Inputs = float, TA = 25C VCC = +5.0V, All transmitter outputs loaded with RL = 3k SD = GND, TTL Inputs = VCC/GND, TA = 25C RS-232 Inputs = float, VCC = +5.0V
Min
Typ
Max
Units
see specifications below
0.1 0 -40 4.5
0.1 +25 +25 5 3 15
1.0 +70 +85 5.5 6
F C C V mA mA
Supply Current Transmitters Loaded Supply Current, SHUTDOWN Enabled TTL LOGIC Input Input Threshold Low Input Threshold High Input Hysteresis Input Leakage Current Input Leakage Current TTL LOGIC Output
1
10 0.8
A V V V A A V V A V V V V k V mA A
VCC = +5.0V Supply VIN = VCC and GND, TxIN, EN, SD VIN = VCC and GND, TxIN
2.4 0.5 0.01 50 1 200 0.4 VCC-0.6 VCC-0.1 0.05 -25 0.8 10 25 1.5 2.4 0.5 3 5 300 60 5 7
Output Voltage Low IOUT = 1.6mA Output Voltage High IOUT = -1.0mA Output Leakage Current Receiver Outputs Disabled, VOUT = VCC or GND, SD = GND, EN = VCC Receiver Input Input Voltage Range Input Threshold Low Input Threshold High Input Hysteresis Input Resistance Transmitter Output Output Voltage Swing Output Resistance Output Short-Circuit Current Output Leakage Current RL = 3k, All Outputs are loaded VCC = VDD = VSS = GND, VOUT = 2V VOUT = GND Transmitter Disabled, VOUT = 12V TA = Tmin - Tmax TA = 25C, VCC = 5.0V VCC = +5.0V Supply TA = 25C VIN = 25V, TA = 25C
Zywyn
Specifications subject to change without notice
3
May 2006
rev. 1.6
Zywyn Corporation Electrical Characteristics
ZT230F
Unless otherwise stated, VCC = +5.0V, TA = Tmin to Tmax, C1 to C4 = 0.1F, typical values apply at VCC = +5.0V and TA = 25C. Parameter Timing Characteristics Maximum Data Rate One Transmitter Switching, Transition-Region Slew Rate Transmitter Propagation tPLH Transmitter Propagation tPHL Transmitter Output Enable Time Transmitter Output Disable Time Receiver Propagation tPLH Receiver Propagation tPHL www..com Receiver Skew Receiver Output Enable Time Receiver Output Disable Time ESD Tolerance RS-232 I/Os ESD HBM TTL/CMOS I/Os ESD HBM 2 kV 15 kV RL = 3k, CL = 250pF, TA = 25C Refers to Figure 1 and 2. RL = 3~7k, CL = 150pF to 250pF, One Transmitter Switching, TA = 25C, Measured from +3V to -3V or -3V to +3V. All transmitters loaded with RL = 3k, CL = 1000pF All transmitters loaded with RL = 3k, CL = 1000pF 1000 90 1.5 1.5 0.4 0.25 0.15 0.15 50 0.2 0.2 kbps V/s s s s s s s ns s s Condition Min Typ Max Units
CL = 150pF CL = 150pF tPHL - tPLH
ZT213F Only SD 0 0 1 1 EN 0 1 0 1 SD 1 1 0 0 EN 1 0 1 0
Power Up/Down Up Up Down Down
Receiver Outputs Enable Tri-State Enable Tri-State
Table 1. Wake-Up Truth Table for ZT213F
Zywyn
Specifications subject to change without notice
4
May 2006
rev. 1.6
Zywyn Corporation Circuit Description
Proprietary Switch-Capacitor Regulated Voltage Converter
Different from other suppliers, Zywyn uses a patent pending switch-capacitor voltage-controlled source and sink current generators design to provide powerful bipolar voltages to maintain compliant EIA/RS232 levels regardless of power supply fluctuations. The design consists of an internal regulated oscillator, a two phase clock cycling, regulated complementary MOS switches, fast switching diode and switch capacitors. The switch capacitor bi-directional current generators operate with Zywyn's proprietary smartly regulated complementary MOS switches and fast switching diode from its proprietary high voltage process technology. The efficiency of these bidirectional www..com current generators is well over 70%. The switching frequency is generated by an internal oscillator and regulated by the current loads. The switch capacitor pump design delivers higher negative bucked voltage than the positive boosted voltage to achieve a balanced voltage controlled source and sink current generators resulting a balanced bipolar voltage supplies to the chip. With its unique proprietary design technique, Zywyn's interface product series provide a better power efficient, stable and compliant EIA/RS232 levels with superior low power consumption.
ZT230F
ESD Immunity
Electro-Static Discharge (ESD) is an important factor when implementing a serial port into a system. In some applications, it is crucial that the ESD protection for the system must meet a certain tolerance level. Since RS232 transceiver devices are exposed to the outside world, there are many environmental factors that can effect the serial port and even subject it to transients that could potentially damage the transceiver itself. The RS232 transceiver is usually routed from the serial port connector to the transceiver IC through the metal trace on the printed circuit board. This trace will have some small amount of resistance that will add some protection in terms of limiting transient current to the IC. However for added voltage protection, transient voltage suppressors (TVS) or transzorbs, which are back-to-back diode arrays clamp, are usually necessary to protect the serial port circuity. To further reduce cost within their system, more engineers are requiring higher ESD tolerances from the transceiver ICs themselves without having to add costly TVS circuitry. Zywyn's RS232 transceivers includes built-in transient voltage suppression where external ESD circuitry is not necessary to meet the MIL-STD-883, Method 3015, Human Body Model and the EN61000-4-2 Air/Contact Discharge tests. The Human Body Model has been the generally accepted ESD testing method for semiconductors. This test is intended to simulate the human body's potential to store electrostatic energy and discharge it to an integrated circuit upon close proximity or contact. This method will test the IC's capability to withstand an ESD transient during normal handling such as in manufacturing areas where the ICs tend to be handled frequently. EN61000-4-2 is used for testing ESD on equipment and systems. For system manufacturers, they must guarantee a certain amount of ESD protection since the system itself is exposed to the outside environment and human presence. EN61000-4-2 specifies that the system is required to withstand an amount of static electricity when ESD is applied to exposed metal points and surfaces of the equipment that are accessible to personnel during normal usage. The transceiver IC receives most of the ESD current when the ESD source is applied to the connector pins. There are two methods within EN61000-4-2, the Air Discharge method and the Contact Discharge method. With the Air Discharge Method, an ESD voltage is applied to the equipment under test through air, which simulates an electrically charged person ready to connect a cable onto the rear of the system and the high energy potential on the person discharges through an arcing path to the rear panel of the system before he or she even touches the system. The Contact Discharge Method applies the ESD current directly to the EUT. This method was devised to reduce the unpredictability of the ESD arc. The discharge current rise time is constant since the energy is directly transferred without the air-gap arc inconsistencies.
Specifications subject to change without notice
Controlled Enable and Power-Down
The ZT211F and ZT213F both feature an enable input, which allows the receiver outputs to be either tri-stated or enabled. This can be especially useful when the receiver is tied directly to a microprocessor data bus. For the ZT211F, enable is active low, in which a logic LOW applied to the EN pin will enable the receiver outputs. For the ZT213F, enable is active high in which a logic HIGH applied to the EN pin will enable the receiver outputs. ZT211F and ZT213F have a low-power shutdown mode controlled by the SD pin. During shutdown the driver output and the switch-capacitor regulated voltage converter are disabled with the supply current falls to less than 1A. ZT213F includes a wakeup function (see Table 1) that enables two receivers during a shutdown state. With only the receivers active during the shutdown state, the devices draw 5-10A of supply current. A typical application is when a RS232 cable is connected or when the peripheral is enabled such as a modem, the devices will automatically become active again. The ring indicator signal from the modem could be passed through an active receiver in the ZT213F that is itself in the shutdown mode. The ring indicator signal would propagate through the ZT213F to the power management circuitry of the computer to power up the microprocessor and the ZT213F drivers. After the supply voltage to the ZT213F reaches +5.0V, the SD pin can be disabled, taking the ZT213F out of the shutdown mode. All receivers that are active during shutdown maintain 500mV (typ.) of hysteresis.
Zywyn
5
May 2006
rev. 1.6
Zywyn Corporation
RS232 Signal Characteristics
The charge pump voltage converter efficiently converts the necessary voltage for the driver's output transistors so that the RS232 output is close to the ideal rail voltage of 10V. While loaded with a typical RS232 load, the driver's output level only drops 0.2V from its open circuit voltage. Zywyn's low-drop driver circuitry working with its efficient voltage regulator allows superior line driving capability while meeting the requirements of TIA/EIA-232-E. The drivers are inverting transmitters, which accept TTL or CMOS inputs and produces the RS-232 compliant signals that is inverted relative to the input logic levels. Typically the RS232 output voltage swing is 6V. Even under the worst case loading conditions of 3kohms and 2500pF, the output www..com is guaranteed to be 5V, which adheres to the RS232 standard specifications. The transmitter outputs are protected against infinite short-circuits to ground without degradation in reliability. The instantaneous slew rate of the transmitter output is internally limited to a maximum of 30V/s in order to meet the TIA/EIA-232-E requirements.
ZT230F
The receivers convert RS-232 input signals to inverted TTL signals. The inputs have a typical hysteresis margin of 500mV in order to account for signal degradation caused by system interference and other noise related disturbers. This ensures that the receiver is relatively immune to noisy transmission lines. The input thresholds are 0.8V minimum and 2.4V maximum, which are within the TIA/EIA-232 requirements. The receiver inputs are also protected against voltages up to 25V. Should an input be left unconnected, a 5kohm pulldown resistor to ground will force the output of the receiver to a high state.
Specification Mode of Operation No. of Drivers and Receivers Allowed on One Line Maximum Cable Length Maximum Data Rate Driver Output Maximum Voltage Driver Output Signal Level Loaded Unloaded Driver Load Impedance Maximum Driver Output Current (High Impedance State) Power On Power Off Slew Rate Receiver Input Voltage Range Receiver Input Sensitivity Receiver Input Resistivity
RS-232D Single-Ended 1 Driver 1 Receiver 50 feet 20 kbps 25V 5V 15V 3 ~ 7K
RS-423A Single-Ended 1 Driver 10 Receivers 4,000 feet 100 kbps 6V 3.6V 6V 450
RS-422 Differential 1 Driver 10 Receivers 4,000 feet 10 Mbps - 0.25V to +6V 2V 5V 100
RS-485 Differential 32 Drivers 32 Receivers 4,000 feet 10 Mbps - 7V to +12V 1.5V 5V 54
RS-562 Single-Ended 1 Driver 1 Receiver C 2,500 pF@ <20kbps; C 1,000 pF@ >20kbps 64 kbps - 3.7V to +13.2V 3.7V 13.2V 3 ~ 7K
VMAX/300 30V/s max. 15V 3V 3 ~ 7K
100A Controls Provided 12V 200mV 4K min.
100A
100A 100A 30V/s max.
-7V to +7V 200mV 4K min.
-7V to +12V 200mV 12K min.
15V 3V 3 ~ 7K
Table 2. EIA Standard Parameter Summary
Zywyn
Specifications subject to change without notice
6
May 2006
rev. 1.6
Zywyn Corporation Pin Configuration
ZT230F
T3OUT T1OUT T2OUT R1IN
1 2 3 4
24 23 22
T4OUT R2IN R2OUT T5IN T5OUT T4IN T3IN R3OUT R3IN VC2C2+
T2OUT T1OUT R2IN R2OUT T1IN R1OUT R1IN GND Vcc C1+ V+ C1-
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22
T3OUT R3IN R3OUT T4IN T4OUT T3IN T2IN R4OUT R4IN VC2C2+
5 R1OUT US Midwest
ZYWYN ZT207F
21 20 19 18 17 16 15 14 13
ZYWYN ZT208F
21 20 19 18 17 16 15 14 13
T2IN T1IN
6 7 8 9 10 11 12
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GND Vcc C1+ V+ C1-
24-pin SSOP/PDIP/WSOIC
24-pin SSOP/PDIP/WSOIC
T3OUT T1OUT T2OUT R2IN R2OUT T2IN T1IN R1OUT R1IN GND Vcc C1+ V+ C1-
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25
T4OUT R3IN R3OUT SD ___ EN R4IN R4OUT T4IN T3IN R5OUT R5IN VC2C2+
T3OUT T1OUT T2OUT R2IN R2OUT T2IN T1IN R1OUT R1IN GND Vcc C1+ V+ C1-
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25
T4OUT R3IN R3OUT ___ SD EN R4IN R4OUT T4IN T3IN R5OUT R5IN VC2C2+
ZYWYN ZT211F
24 23 22 21 20 19 18 17 16 15
ZYWYN ZT213F
24 23 22 21 20 19 18 17 16 15
28-pin SSOP/WSOIC
28-pin SSOP/WSOIC
Zywyn
Specifications subject to change without notice
7
May 2006
rev. 1.6
Zywyn Corporation Typical Application Circuits
VCC
VCC
ZT230F
ZT207F
C5 + 0.1F 10 C1+ 0.1F 12 C113 C2+ C2 + 0.1F 14 C2V15 C4
VCC 500k
9 VCC V+ 11 *C3 + 0.1F
ZT208F
C5 + 0.1F 10 C1+ 0.1F 12 C113 C2+ V15 C4 14 C2VCC 500k
9 VCC V+ 11 *C3 + 0.1F
C1
+
C1
+
+
0.1F
C2
+
0.1F
+
0.1F
LOGIC INPUTS LOGIC INPUTS LOGIC INPUTS www..com LOGIC INPUTS LOGIC INPUTS LOGIC OUTPUTS LOGIC OUTPUTS LOGIC OUTPUTS
7 T1IN 6 T2IN 18 T3IN 19 T4IN 21 T5IN T1IN
T1OUT T2OUT T3OUT T4OUT T5OUT
2 3 1 24 20
RS-232 OUTPUTS RS-232 OUTPUTS RS-232 OUTPUTS RS-232 OUTPUTS RS-232 OUTPUTS RS-232 INPUTS RS-232 INPUTS RS-232 INPUTS
LOGIC INPUTS LOGIC INPUTS LOGIC INPUTS LOGIC INPUTS LOGIC OUTPUTS LOGIC OUTPUTS LOGIC OUTPUTS LOGIC OUTPUTS
5 T1IN 18 T2IN 19 T3IN 21 T4IN 6 R1OUT 5k 4 R2OUT 5k 22 R3OUT 5k 17 R4OUT 5k GND 8
T1OUT T2OUT T3OUT T4OUT
2 1 24 20
RS-232 OUTPUTS RS-232 OUTPUTS RS-232 OUTPUTS RS-232 OUTPUTS RS-232 INPUTS RS-232 INPUTS RS-232 INPUTS RS-232 INPUTS
R1IN
7
5 R1OUT 5k 22 R2OUT 5k 17 R3OUT 5k
R1IN
4
R2IN
3
R2IN
23
R3IN
23
R3IN
16
R4IN
16
GND 8 *can be returned to either VCC or GND
*can be returned to either VCC or GND
VCC
VCC
ZT211F
C5 + 0.1F 12 C1+ 0.1F 14 C115 C2+ C2 + 0.1F 16 C2V17 C4
VCC 500k
ZT213F
C5 + 0.1F 12 C1+ 0.1F 14 C115 C2+ + 0.1F C2 + 0.1F 16 C2V17 C4
VCC 500k
11 VCC V+ 13 *C3 + 0.1F
11 VCC V+ 13 *C3 + 0.1F
C1
+
C1
+
+
0.1F
LOGIC INPUTS LOGIC INPUTS LOGIC INPUTS LOGIC INPUTS LOGIC OUTPUTS LOGIC OUTPUTS LOGIC OUTPUTS LOGIC OUTPUTS LOGIC OUTPUTS
7 T1IN 6 T2IN 20 T3IN 21 T4IN 8 R1OUT 5k 5 R2OUT 5k 26 R3OUT 5k 22 R4OUT 5k 19 R5OUT 5k 24 EN GND 10
T1OUT T2OUT T3OUT T4OUT
2 3 1 28
RS-232 OUTPUTS RS-232 OUTPUTS RS-232 OUTPUTS RS-232 OUTPUTS RS-232 INPUTS RS-232 INPUTS RS-232 INPUTS RS-232 INPUTS RS-232 INPUTS
LOGIC INPUTS LOGIC INPUTS LOGIC INPUTS LOGIC INPUTS LOGIC OUTPUTS LOGIC OUTPUTS LOGIC OUTPUTS LOGIC OUTPUTS LOGIC OUTPUTS
7 T1IN 6 T2IN 20 T3IN 21 T4IN 8 R1OUT 5k 5 R2OUT 5k 26 R3OUT 5k 22 R4OUT 5k 19 R5OUT 5k 24 EN GND 10
T1OUT T2OUT T3OUT T4OUT
2 3 1 28
RS-232 OUTPUTS RS-232 OUTPUTS RS-232 OUTPUTS RS-232 OUTPUTS RS-232 INPUTS RS-232 INPUTS RS-232 INPUTS RS-232 INPUTS RS-232 INPUTS
R1IN
9
R1IN
9
R2IN
4
R2IN
4
R3IN
27
R3IN
27
R4IN
23
R4IN
23
R5IN
18
R5IN
18
SD
25
SD
25
*can be returned to either VCC or GND
*can be returned to either VCC or GND
Zywyn
Specifications subject to change without notice
8
May 2006
rev. 1.6
Zywyn Corporation Typical Test Circuits
ZT230F
Measuring Oscilliscope
Maximum Data Rate Test Circuit Notes: A. RL = 3k , CL = 250pF, TA = 25oC, One Driver Switching. B. The pulse generator had the following characteristics: PRR = 1000 kbps, Zo = 50, 50% duty cycle, Tr & Tf < 10ns
TEST CIRCUIT
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Figure 1. ZT230F TxIN to TxOut (no load) at 1Mbps waveform
Figure 2. ZT230F TxIN to TxOut to RxOut (loopback to Rx with 250pF load) at 1Mbps waveform
Test Circuit RS232 Signal Characteristics
Figure 1 shows the normal RS232 transceiver function with a TTL/CMOS signal applied to the input on channel 1 and the resultant RS232 output shown on channel 2. This figure shows a typical RS232 line driver output without loading. In other words, this is the open circuit RS232 output voltage. The charge pump voltage converter efficiently converts the necessary voltage for the driver's output transistors so that the RS232 output is close to the ideal rail voltage of 6.6V. Figure 2 shows the RS232 transceiver function using the TTL/CMOS input on channel 1 while showing the RS232 output on channel 2. This figure shows the RS232 signal while the output is loaded with 3kohms and 250pF. The resistive load is the receiver's input impedance as the driver's output is looped back to the receiver's input. The resultant output on channel 3 is the receiver's TTL/CMOS output. While loaded with a typical RS232 load, the driver's output level only drops 0.2V from its open circuit voltage while running at 1Mbps. The RS-232 output on channel 2 also shows good signal integrity while at the high data rates, which allows the receiver to process the signal with minimum skew and delay. Zywyn's low-drop driver circuitry working with its efficient voltage regulator allows superior line driving capability with the bonus of 15kV ESD immunity.
Zywyn
Specifications subject to change without notice
9
May 2006
rev. 1.6
Zywyn Corporation
ZT230F
Driver Transition-Region Slew Rate Test Circuit Notes: A. RL = 3k~7k , CL = 150pF to 250pF, One Driver Switching, TA = 25oC, Measured from +3V to -3V or -3V to +3V. B. The pulse generator had the following characteristics: PRR = 1000 kbps, Zo = 50, 50% duty cycle, Tr & Tf < 10ns
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Driver Propagation (tPHL & tPLH) Test Circuit Notes: A. All drivers loaded with RL = 3k , CL = 1000pF. B. The pulse generator had the following characteristics: PRR = 1000 kbps, Zo = 50, 50% duty cycle, Tr & Tf < 10ns
Receiver Propagation Delay Times Test Circuit Notes: A. CL = 150pF, including probe and jig capacitance. B. The pulse generator had the following characteristics: PRR = 1000 kbps, Zo = 50, 50% duty cycle, Tr & Tf < 10ns
Zywyn
Specifications subject to change without notice
10
May 2006
rev. 1.6
Zywyn Corporation Package Information
ZT230F
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1.73 0.05 0.22 0.13 8.07 7.40 5.00 0.56 0
1.99 0.21 1.75 0.30 0.15 7.80 5.30 0.65 0.75 0.38 0.20 8.33 8.20 5.60 0.97 0.076 8
0.068 0.002 0.0086 0.0051 0.317 0.291 0.197 0.022 0 0.069 0.012 0.006 0.307 0.209 0.0256 0.030
0.079 0.008 0.015 0.0079 0.328 0.323 0.220 0.037 0.003 8
24-pin SSOP
24L
28-pin SSOP
Zywyn
Specifications subject to change without notice
11
May 2006
rev. 1.6
Zywyn Corporation
ZT230F
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24-pin wSOIC
28-pin wSOIC
Zywyn
Specifications subject to change without notice
12
May 2006
rev. 1.6
Zywyn Corporation Green Package SMD IR Reflow Profile Information
ZT230F
IR Reflow Profile Conditions
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Profile Feature Average Ramp-Up Rate (TSmax to TP) Pre-heat - Temperature Min (TSmin) - Temperature Max (TSmax) - Time (TSmin to tSmax) Time maintained above: - Temperature (TL) - Time (tL) Peak/Classification Temperature (TP) Time within 5 C of actual Peak Temperature (tP) Ramp-Down Rate Time 25 C to Peak Temperature
o o
JESD Sn-Pb Eutectic Assembly 3 C/seconds max.
o o
JESD Pb-free Assembly 3 C/seconds max.
o o
100 C o 150 C 60~120 seconds 183 C 60~150 seconds 235 C+5/-0 C 10~30 seconds 6 C/second max. 6 minutes max.
o o o o
150 C o 200 C 60~180 seconds 217 C 60~150 seconds 255 C+5/-0 C 20~40 seconds 6 C/second max. 8 minutes max.
o o o o
Zywyn Green Packages are Pb-free and RoHS compliance.
Zywyn
Specifications subject to change without notice
13
May 2006
rev. 1.6
Zywyn Corporation Ordering Information
Part Number ZT207FCA ZT207FCT ZT208FCA ZT208FCT ZT211FCA ZT211FCT ZT213FCA ZT213FCT ZT207FEA ZT207FET ZT208FEA ZT208FET ZT211FEA ZT211FET ZT213FEA ZT213FET www..com Drivers 5 5 4 4 4 4 4 4 5 5 4 4 4 4 4 4 Receivers 3 3 4 4 5 5 5 (2 active in SD) 5 (2 active in SD) 3 3 4 4 5 5 5 (2 active in SD) 5 (2 active in SD) Temperature Range 0C to +70C 0C to +70C 0C to +70C 0C to +70C 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C Package Type 24-pin SSOP 24-pin WSOIC 24-pin SSOP 24-pin WSOIC 28-pin SSOP 28-pin WSOIC 28-pin SSOP 28-pin WSOIC 24-pin SSOP 24-pin WSOIC 24-pin SSOP 24-pin WSOIC 28-pin SSOP 28-pin WSOIC 28-pin SSOP 28-pin WSOIC Green Package
ZT230F
ZT207LFEA ZT207LFET ZT208LFEA ZT208LFET ZT211LFEA ZT211LFET ZT213LFEA ZT213LFET
Please contact the factory for pricing, availabiliy on Tape-and-Reel, and Green Package
options.
Zywyn Corporation
Headquarters and Sales Office 1270 Oakmead Parkway, Suite 201 * Sunnyvale, CA 94085 * Tel: (408) 733-3225 * Fax: (408) 733-3206 Email: sales@zywyn.com * www.zywyn.com
Zywyn Corporation reserves the right to make changes to any products described herein. Zywyn does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. (c) 2006 Zywyn Corporation
Zywyn
Specifications subject to change without notice
14
May 2006
rev. 1.6

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Price & Availability of ZT207F

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