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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT163245 3.3V 16-BIT BIDIRECTIONAL TRANSCEIVER
PI74FCT163245
Product Features
Advanced Low Power CMOS Operation Excellent output drive capability: Balanced drives (24mA sink and source) Compatible with LVCTM class of products. Pin compatible with industry standard double-density pinouts Low ground bounce outputs Hysteresis on all inputs Industrial operating temperature range: 40C to +85C Control inputs can be driven by 3.3V or 5V devices Multiple center pin and distributed Vcc/GND pins minimizing switching noise Packages available: 48-pin 240 mil wide plastic TSSOP (A) 48-pin 300 mil wide plastic SSOP (V) 48-pin 173 mil wide plastic TVSOP (K) Device models available on request
Fast CMOS 3.3V 16-Bit Bidirectional Transceiver
Product Description
Pericom Semiconductors PI74FCT series of logic circuits are produced in the Companys advanced 0.6 micron CMOS technology, achieving industry leading speed grades. The PI74FCT163245 is a 16-bit bidirectional transceiver designed for asynchronous two-way communication between data buses. The direction control input pin (xDIR) determines the direction of data flow through the bidirectional transceiver. The Direction and Output Enable controls are designed to operate this device as either two independent 8-bit transceivers or one 16-bit transceiver. The output enable (xOE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition.
Logic Block Diagram
1DIR 2DIR
1OE
2OE
1A0
2A0
1B0 1A1 2A1
2B0
1B1 1A2 2A2
2B1
1B2 1A3 2A3
2B2
1B3 1A4 2A4
2B3
1B4 1A5 2A5
2B4
1B5 1A6 2A6
2B5
1B6 1A7 2A7
2B6
1B7
2B7
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PS2054B
01/18/99
Product Pin Configuration
1DIR 1B0 1B1
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT163245 3.3V 16-BIT BIDIRECTIONAL TRANSCEIVER
Product Pin Description
Pin Name xOE xDIR xAx xBx GND VCC Description 3-State Output Enable Inputs (Active LOW) Direction Control Input Side A Inputs or 3-State Inputs Side B Outputs or 3-State Outputs Ground Power
Truth Table
Inputs(1)
XOE
L L H
xDIR L H X
Outputs(1) Bus B Data to Bus A Bus A Data to Bus B Z
Note: 1. H = High Voltage Level, X = Don't Care, L = Low Voltage Level, Z = High Impedance
1 2 3 4 5 6 7 8 9 10 11 48-PIN V48 12 A48 13 K48 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
1OE 1A0 1A1
GND
1B2 1B3
GND
1A2 1A3
VCC
1B4 1B5
VCC
1A4 1A5
GND
1B6 1B7 2B0 2B1
GND
1A6 1A7 2A0 2A1
GND
2B2 2B3
GND
2A2 2A3
VCC
2B4 2B5
VCC
2A4 2A5
GND
2B6 2B7 2DIR
GND
2A6 2A7 2OE
Capacitance (TA = 25C, f = 1 MHz)
Parameters(1) CIN COUT Description Input Capacitance Output Capacitance Test Conditions VIN = 0V VOUT = 0V Typ. 4.5 5.5 Max. 6 8 Units pF pF
Note: 1. This parameter is determined by device characterization but is not production tested.
2
PS2054B
01/18/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT163245 3.3V 16-BIT BIDIRECTIONAL TRANSCEIVER
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ................................................................. 65C to +150C Ambient Temperature with Power Applied ................................ 40C to +85C Supply Voltage to Ground Potential (Inputs & Vcc Only) .......... 0.5V to +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) ....... 0.5V to +7.0V DC Input Voltage ......................................................................... 0.5V to +7.0V DC Output Current ................................................................................... 120 mA Power Dissipation ......................................................................................... 1.0W Note: Stresses greater than those listed under 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.
DC Electrical Characteristics (Over the Operating Range, TA = 40C to +85C, VCC = 2.7V to 3.6V)
Parameters VIH VIL IIH IIL IOZH IOZL VIK IODH IODL VOH Description Input HIGH Voltage (Input pins) Input HIGH Voltage (I/O pins) Input LOW Voltage (Input and I/O pins) Input HIGH Current (Input pins) Input HIGH Current (I/O pins) Input LOW Current (Input pins) Input LOW Current (I/O pins) High Impedance Output Current (3-State Output pins) Clamp Diode Voltage Output HIGH Current Output LOW Current Output HIGH Voltage Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level Min. 2.2 2.0 0.5 Typ.(2) 0.7 60 90 3.0 3.0 0.2 0.3 85 150 Max. 5.5 Vcc+0.5 0.8 1 1 1 1 1 1 1.2 110 200 0.2 0.4 0.5 240 Units V V V A A A A A A V mA mA V V V V V V V mA mV
VOL
Output LOW Voltage Short Circuit Current(4) Input Hysteresis
IOS VH
VCC = Max. VIN = 5.5V VCC = Max. VIN = VCC VCC = Max. VIN = GND VCC = Max. VIN = GND VCC = Max. VOUT = VCC VCC = Max. VOUT = GND VCC = Min., IIN = 18 mA VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3) 36 VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3) 50 VCC = Min. IOH = 0.1mA Vcc-0.2 VIN = VIH or VIL IOH = 3mA 2.4 VCC = 3.0V, IOH = 8mA 2.4(5) VIN = VIH OR VIL IOH = 24mA 2.0 VCC = Min. IOL = 0.1mA VIN = VIH or VIL IOL = 16mA IOL = 24mA VCC = Max.(3), VOUT = GND 60
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 3.3V, +25C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. This parameter is guaranteed but not tested. 5. VOH = VCC 0.6V at rated current.
3
PS2054B
01/18/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT163245 3.3V 16-BIT BIDIRECTIONAL TRANSCEIVER
Power Supply Characteristics
Parameters Description ICC ICC ICCD Quiescent Power Supply Current Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply(4) Test Conditions(1) VCC = Max. VCC = Max. VIN = GND or VCC VIN = VCC 0.6V(3) Min. Typ.(2) 0.1 2.0 50 Max. 10 30 75 Units A A A/ MHz
VCC = Max., VIN = VCC Outputs Open VIN = GND XOE = xDIR = GND One Bit Toggling 50% Duty Cycle VCC = Max., VIN = VCC 0.6V Outputs Open VIN = GND fI = 10 MHZ 50% Duty Cycle XOE = xDIR = GND One Bit Toggling VCC = Max., VIN = VCC 0.6V Outputs Open VIN = GND fI = 2.5 MHZ 50% Duty Cycle XOE = xDIR = GND 16 Bits Toggling
IC
Total Power Supply Current(6)
0.5
0.8
mA
2.0
3.3(5)
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 3.3V, +25C ambient. 3. Per TTL driven input; all other inputs at Vcc or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested. 6. IC =IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fCP/2 + fINI) ICC = Quiescent Current (ICCL, ICCH and ICCZ) ICC = Power Supply Current for a TTL High Input DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) NCP = Number of Clock Inputs at fCP fI = Input Frequency NI = Number of Inputs at fI All currents are in milliamps and all frequencies are in megahertz.
4
PS2054B
01/18/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT163245 3.3V 16-BIT BIDIRECTIONAL TRANSCEIVER
Switching Characteristics over Operating Range(1)
FCT163245 Com. Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ tSK(o) Description Propagation Delay A to B, B to A Output Enable Time xOE to A or B Output Disable Time(4) xOE to A or B Output Enable Time xDIR to A or B Output Disable Time(4) xDIR to A or B Output Skew(5) Conditions(2) CL = 50pF RL = 500 Min.(3) 1.5 1.5 1.5 1.5 1.5 Max. 7.0 9.5 7.5 9.5 7.5 0.5 1.5 1.5 1.5 1.5 1.5 FCT163245A Com. Min.(3) Max. 4.6 6.2 5.0 6.2 5.0 0.5 1.5 1.5 1.5 1.5 1.5 FCT163245C Com. Min.(3) Max. 4.1 5.8 4.8 5.8 4.8 0.5 Units ns ns ns ns ns ns
Notes: 1. Propagation Delays and Enable/Disable times are with Vcc = 3.3V 0.3V, normal range. For Vcc = 2.7V, extended range, all Propagation Delays and Enable/Disable times should be degraded by 20%. 2. See test circuit and waveforms. 3. Minimum limits are guaranteed but not tested on Propagation Delays. 4. This parameter is guaranteed but not production tested. 5. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.
Pericom Semiconductor Corporation 2380 Bering Drive * San Jose, CA 95131 * 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com
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PS2054B 01/18/99

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