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IDT74ALVCH16245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
EXTENDED COMMERCIAL TEMPERATURE RANGE
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS AND BUS-HOLD
FEATURES:
0.5 MICRON CMOS Technology Typical tSK(0) (Output Skew) < 250ps ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) - 0.635mm pitch SSOP, 0.50mm pitch TSSOP, and 0.40mm pitch TVSOP packages - Extended commercial range of - 40C to + 85C - VCC = 3.3V 0.3V, Normal Range - VCC = 2.7V to 3.6V, Extended Range - VCC = 2.5V 0.2V - CMOS power levels (0.4 W typ. static) - Rail-to-Rail output swing for increased noise margin Drive Features for ALVCH16245: - High Output Drivers: 24mA - Suitable for heavy loads - - -
IDT74ALVCH16245
DESCRIPTION:
This 16-bit bus transceiver is built using advanced dual metal CMOS technology. The ALVCH16245 is designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements. This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the directioncontrol (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. The ALVCH16245 has been designed with a 24mA output driver. This driver is capable of driving a moderate to heavy load while maintaining speed performance. The ALVCH16245 has "bus-hold" which retains the inputs' last state whenever the input bus goes to a high impedance. This prevents floating inputs and eliminates the need for pull-up/down resistors.
APPLICATIONS:
* 3.3V High Speed Systems * 3.3V and lower voltage computing systems
Functional Block Diagram
1DIR
1
2DIR
48
24
1OE 2A1
36
25
2OE
1A1
47 2 46
1B1 2A2
35
13
2B1
1A2
3 44 5 43 6 41 8 40 9 38 11
1B2 2A3 1B3 2A4 1B4 2A5 1B5 2A6 1B6 2A7 1B7
26 27 29 30 32 33
14
2B2
1A3
16
2B3
1A4
17
2B4
1A5
19
2B5
1A6
20
2B6
1A7
22
2B7
1A8
37
2A8
12
1B8
23
2B8
EXTENDED COMMERCIAL TEMPERATURE RANGE
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c 1999 Integrated Device Technology, Inc.
MARCH 1999
DSC-4697/-
IDT74ALVCH16245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
EXTENDED COMMERCIAL TEMPERATURE RANGE
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATING
Symbol VTERM(2) Description Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature DC Output Current Continuous Clamp Current, VI < 0 or VI > VCC Continuous Clamp Current, VO < 0 Continuous Current through each VCC or GND
(1)
Unit V V C mA mA mA mA
NEW16link
Max. - 0.5 to + 4.6 - 0.5 to VCC + 0.5 - 65 to + 150 - 50 to + 50 50 - 50 100
1DIR 1B1 1B2
1 2 3 4 5 6 7 8 9 10 11
48 47 46 45 44 43 42 41 40 39 38
1OE 1A1 1A2
VTERM(3) TSTG IOUT IIK IOK ICC ISS
GND
1B3 1B4
GND
1A3 1A4
VCC
1B5 1B6
VCC
1A5 1A6
GND
1B7 1B8 2B1 2B2
GND
1A7 1A8 2A1 2A2
12 SO48-1 37 SO48-2 13 SO48-3 36 14 15 16 17 18 19 20 21 22 23 24 35 34 33 32 31 30 29 28 27 26 25
NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. VCC terminals. 3. All terminals except VCC.
GND
2B3 2B4
GND
2A3 2A4
CAPACITANCE (TA = +25oC, f = 1.0MHz)
Symbol CIN COUT Parameter(1) Input Capacitance Output Capacitance I/O Port Capacitance Conditions VIN = 0V VOUT = 0V VIN = 0V Typ. 5 7 7 Max. 7 9 9 Unit pF pF pF
NEW16link
VCC
2B5 2B6
VCC
2A5 2A6
CI/O
GND
2B7 2B8 2DIR
GND
2A7 2A8 2OE
NOTE: 1. As applicable to the device type.
FUNCTION TABLE (each 8-bit section)(1)
Inputs xOE L L H xDIR L H X Outputs Bus B Data to Bus A Bus A Data to Bus B High Z State
SSOP/ TSSOP/TVSOP TOP VIEW
PIN DESCRIPTION
Pin Names xOE xDIR xAx xBx Description Output Enable Inputs (Active LOW) Direction Control Inputs Side A Inputs or 3-State Outputs Side B Inputs or 3-State Outputs
(1) (1)
NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance
NOTE: 1. These pins have "Bus-Hold." All other pins are standard inputs, outputs, or I/Os.
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IDT74ALVCH16245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
EXTENDED COMMERCIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = - 40C to +85C
Symbol VIH VIL IIH IIL IOZH IOZL VIK VH ICCL ICCH ICCZ ICC Parameter Input HIGH Voltage Level Input LOW Voltage Level Input HIGH Current Input LOW Current High Impedance Output Current (3-State Output pins) Clamp Diode Voltage Input Hysteresis Quiescent Power Supply Current Quiescent Power Supply Current Variation VCC = 2.3V, IIN = - 18mA VCC = 3.3V VCC = 3.6V VIN = GND or VCC One input at VCC - 0.6V, other inputs at VCC or GND Test Conditions VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 3.6V VCC = 3.6V VCC = 3.6V VI = VCC VI = GND VO = VCC VO = GND Min. 1.7 2 -- -- -- -- -- -- -- -- -- Typ.(1) -- -- -- -- -- -- -- -- - 0.7 100 0.1 Max. -- -- 0.7 0.8 5 5 10 10 - 1.2 -- 40 A A V mV A A V Unit V
--
--
750
A
NEW16link
NOTE: 1. Typical values are at VCC = 3.3V, +25C ambient.
BUS-HOLD CHARACTERISTICS
Symbol IBHH IBHL IBHH IBHL IBHHO IBHLO
NEW16link
Parameter(1) Bus-Hold Input Sustain Current Bus-Hold Input Sustain Current Bus-Hold Input Overdrive Current
VCC = 3.0V VCC = 2.3V VCC = 3.6V
Test Conditions VI = 2.0V VI = 0.8V VI = 1.7V VI = 0.7V VI = 0 to 3.6V
Min. - 75 75 - 45 45 --
Typ.(2) -- -- -- -- --
Max. -- -- -- -- 500
Unit A A A
NOTES: 1. Pins with Bus-hold are identified in the pin description. 2. Typical values are at VCC = 3.3V, +25C ambient.
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IDT74ALVCH16245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
EXTENDED COMMERCIAL TEMPERATURE RANGE
OUTPUT DRIVE CHARACTERISTICS
Symbol VOH Parameter Output HIGH Voltage Test Conditions(1) VCC = 2.3V to 3.6V IOH = - 0.1mA VCC = 2.3V VCC = 2.3V VCC = 2.7V VCC = 3.0V VCC = 3.0V VOL Output LOW Voltage VCC = 2.3V to 3.6V VCC = 2.3V VCC = 2.7V VCC = 3.0V IOH = - 24mA IOL = 0.1mA IOL = 6mA IOL = 12mA IOL = 12mA IOL = 24mA IOH = - 6mA IOH = - 12mA Min. VCC - 0.2 2 1.7 2.2 2.4 2 -- -- -- -- -- Max. -- -- -- -- -- -- 0.2 0.4 0.7 0.4 0.55
NEW16link
Unit V
V
NOTE: 1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range. TA = - 40C to + 85C.
OPERATING CHARACTERISTICS, TA = 25oC
VCC = 2.5V 0.2V Symbol CPD CPD Parameter Power Dissipation Capacitance Outputs enabled Power Dissipation Capacitance Outputs disabled Test Conditions CL = 0pF, f = 10Mhz Typical 22 4 VCC = 3.3V 0.3V Typical 29 5 Unit pF pF
SWITCHING CHARACTERISTICS
Symbol Parameter Min.
(1)
VCC = 2.5V 0.2V
Max. Min.
VCC = 2.7V
Max.
VCC = 3.3V 0.3V
Min. Max. Unit
tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o)
Propagation Delay xAx to xBx or xBx to xAx Output Enable Time xOE to xAx or xBx Output Disable Time xOE to xAx or xBx Output Skew(2)
1 1 1 --
3.7 5.7 5.2 --
-- -- -- --
3.6 5.4 4.6 --
1 1 1 --
3 4.4 4.1 500
ns ns ns ps
NOTES: 1. See test circuits and waveforms. TA = - 40C to + 85C. 2. Skew between any two outputs of the same package and switching in the same direction.
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IDT74ALVCH16245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
EXTENDED COMMERCIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS: TEST CONDITIONS PROPAGATION DELAY
Symbol VLOAD VIH VT VLZ VHZ CL VCC(1)= 3.3V0.3V 6 2.7 1.5 300 300 50 VCC(1)= 2.7V 6 2.7 1.5 300 300 50 VCC(2)= 2.5V0.2V 2 x Vcc Vcc Vcc / 2 150 150 30 Unit V V V mV mV pF
NEW16link
SAM E PHAS E INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL
VIH VT 0V VOH VT VOL VIH VT 0V
ALV C Link
TEST CIRCUITS FOR ALL OUTPUTS
VCC 500 Pulse Generator
(1, 2)
ENABLE AND DISABLE TIMES
ENABLE CONTROL INPUT tPZL OUTPUT SW ITCH NORM ALLY CLOSE D LOW tPZH OUTPUT SW ITCH NORM ALLY OPEN HIGH VLOAD/2 VT tPHZ VT 0V tPLZ DISABLE VIH VT 0V VLOAD/2 VLZ VOL VOH VHZ 0V
VLOAD Open GND
VIN D.U.T.
VOUT
RT
500 CL
ALV C Link DEFINITIONS: CL= Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTES: 1. Pulse Generator for All Pulses: Rate 10MHz; tF 2.5ns; tR 2.5ns. 2. Pulse Generator for All Pulses: Rate 10MHz; tF 2ns; tR 2ns.
ALV C Link NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
SET-UP, HOLD, AND RELEASE TIMES
DATA INPUT tSU tH VIH VT 0V VIH VT 0V VIH VT 0V VIH VT 0V
ALV C Link
SWITCH POSITION
Test Open Drain Disable Low Enable Low Disable High Enable High All Other tests Switch VLOAD
TIMING INPUT ASYNCHRONOUS CONTROL SYNCHRONOUS CONTROL
NEW16link
tREM
GND Open
tSU
tH
OUTPUT SKEW INPUT
TSK
(x)
tPHL1
VIH VT 0V VOH
tPLH1
PULSE WIDTH
LOW -HIGH-LOW PULSE tW HIGH-LOW -HIGH PULSE VT
ALV C Link
OUTPUT 1
tSK (x)
tSK (x)
VT VOL VOH
VT
OUTPUT 2 tPLH2 tPHL2
VT VOL
tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1
ALV C Link
NOTES: 1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs. 2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank.
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IDT74ALVCH16245 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
EXTENDED COMMERCIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT XX ALVC X XX Family XXX XX
Temp. Range
Bus-Hold
Device Type Package
PV PA PF 245
Shrink Small Outline Package (SO48-1) Thin Shrink Small Outline Package (SO48-2) Thin Very Small Outline Package (SO48-3) 16-Bit Bus Transceiver with 3-State Outputs
16
Double-Density with Resistors, 24mA
H 74
Bus-Hold -40C to +85C
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