PI74FCT162541 PERICOM | Alldatasheet

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PI74FCT16541/162541/162H541T 16-BIT BUFFER/LINE DRIVERS

229 PS2037A 03/11/96

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 Logic Block Diagram 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 PI74FCT16541T PI74FCT162541T PI74FCT162H541T Fast CMOS 16-Bit Octal Buffer/Line Drivers Product Description Pericom Semiconductor’s PI74FCT series of logic circuits are pro- duced in the Company’s advanced 0.6/0.8 micron CMOS technology, achieving industry leading speed grades. The PI74FCT16541T, PI74FCT162541T, and PI74FCT162H541T are non-inverting 16-bit buffer/line drivers designed for applications driving high capacitance loads and low impedance backplanes. These high-speed, low-power devices offer bus/backplane interface capability and a flow-through organization for ease of board layout. They are designed with three-state controls to operate in a Dual- Byte, or a single 16-bit word mode. The PI74FCT16541T output buffers are designed with a Power- Off disable allowing “live insertion” of boards when used as backplane drivers. The PI74FCT162541T has ±24 mA balanced output drivers. It is designed with current limiting resistors at its outputs to control the output edge rate resulting in lower ground bounce and undershoot. This eliminates the need for external terminating resistors for most interface applications. The PI74FCT162H541T has “Bus Hold” which retains the input’s last state whenever the input goes to high-impedance preventing “floating” inputs and eliminating the need for pull-up/down resistors. Product Features Common Features

  • PI74FCT16541T, PI74FCT162541T, and PI74FCT162H541T are high-speed, low power devices with high current drive CC = 5V ±10%
  • Hysteresis on all inputs
  • Packages available – 48-pin 240 mil wide plastic TSSOP (A48) – 48-pin 300 mil wide plastic SSOP (V48) PI74FCT16541T Features
  • High output drive: IOH = –32 mA; IOL = 64 mA
  • Power off disable outputs permit “live insertion”
  • Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V, TA = 25°C PI74FCT162541T Features
  • Balanced output drivers: ±24 mA
  • Reduced system switching noise
  • Typical V OLP (Output Ground Bounce) < 0.6V at VCC = 5V, TA = 25°C PI74FCT162H541T Features
  • Bus Hold retains last active bus state during 3-state
  • Eliminates the need for external pull-up resistors 1OE A 1A0 1Y0 1OE B 1A1 1Y1 1A2 1Y2 1A3 1Y3 1A4 1Y4 1A5 1Y5 1A6 1Y6 1A7 1Y7 2OE A 2A0 2Y0 2OE B 2A1 2Y1 2A2 2Y2 2A3 2Y3 2A4 2Y4 2A5 2Y5 2A6 2Y6 2A7 2Y7

PI74FCT16541/162541/162H541T 16-BIT BUFFER/LINE DRIVERS

230 PS2037A 03/11/96

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 21234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 Product Pin Description Pin Name Description X OE 3-State Output Enable Inputs (Active LOW) xAx Inputs (1) xYx 3-State Outputs GND Ground V CC Power Note: 1. For the PI74FCT162H541T, these pins have “Bus Hold.” All other pins are standard, outputs, or I/Os. Inputs(1) Outputs(1) X OE xAx xYx LL H LH L HX Z Truth Table Note: 1. H = High Voltage Level X = Don’t Care L = Low Voltage Level Z = High Impedance Product Pin Configuration 1OE A 1Y0 1Y1 GND 1Y2 1Y3 VCC 1Y4 1Y5 GND 1Y6 1Y7 2Y0 2Y1 GND 2Y2 2Y3 VCC 2Y4 2Y5 GND 2Y6 2Y7 2OE A 1OE B 1A0 1A1 GND 1A2 1A3 VCC 1A4 1A5 GND 1A6 1A7 2A0 2A1 GND 2A2 2A3 VCC 2A4 2A5 GND 2A7 2OE B 48-PIN V48 A48

PI74FCT16541/162541/162H541T 16-BIT BUFFER/LINE DRIVERS

231 PS2037A 03/11/96

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 Parameters Description Test Conditions(1) Min. Typ (2) Max. Units V IH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 V V IL Input LOW Voltage Guaranteed Logic LOW Level 0.8 V IIH Input HIGH Current Standard Input, V CC = Max. V IN = VCC 1µ A IIH Input HIGH Current Standard I/O, V CC = Max. V IN = VCC 1µ A IIH Input HIGH Current Bus Hold Input (4), VCC = Max. V IN = VCC ±100 µA IIH Input HIGH Current Bus Hold I/O (4), VCC = Max. V IN = VCC ±100 µA IIL Input LOW Current Standard Input, V CC = Min. V IN = GND –1 µA IIL Input LOW Current Standard I/O, V CC = Min. V IN = GND –1 µA IIL Input LOW Current Bus Hold Input (4), VCC = Min. V IN = GND ±100 µA IIL Input LOW Current Bus Hold I/O (4), VCC = Min. V IN = GND ±100 µA IBHH Bus Hold Bus Hold Input (4), VCC = Min. V IN = 2.0V –50 µA IBHL Sustain Current V IN = 0.8V +50 IOZH (5) High-Impedance V CC = Max. V OUT = 2.7V 1 µA IOZL (5) Output Current V CC = Max. V OUT = 0.5V –1 µA (3-STATE OUTPUTS ) V IK Clamp Diode Voltage V CC = Min., IIN = –18 mA –0.7 –1.2 V IOS Short Circuit Current V CC = Max.(3), VOUT = GND –80 –140 –200 mA IO Output Drive Current V CC = Max.(3), VOUT = 2.5V –50 –180 mA VH Input Hysteresis 100 m V Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) 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. 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 = 5.0V, +25°C 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. Pins with Bus Hold are identified in the pin description. 5. This specification does not apply to bi-directional functionalities with Bus Hold.

PI74FCT16541/162541/162H541T 16-BIT BUFFER/LINE DRIVERS

232 PS2037A 03/11/96

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 21234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 PI74FCT16541T Output Drive Characteristics (Over the Operating Range) Parameters Description Test Conditions(1) Min. Typ (2) Max. Units V OH Output HIGH Voltage V CC = Min., VIN = VIH or VIL IOH = –3.0 mA 2.5 3.5 V IOH = –15.0 mA 2.4 3.5 IOH = –32.0 mA 2.0 3.0 V OL Output LOW Voltage V CC = Min., VIN = VIH or VIL IOL = 64 mA 0.2 0.55 V IOFF Power Down Disable V CC = 0V, VIN or VOUT £4.5V — — ±100 µA PI74FCT162541T/162H541T Output Drive Characteristics (Over the Operating Range) Parameters Description Test Conditions(1) Min. Typ (2) Max. Units V OH Output HIGH Voltage V CC = Min., VIN = VIH or VIL IOH = –24.0 mA 2.4 3.3 V V OL Output LOW Voltage V CC = Min., VIN = VIH or VIL IOL = 24 mA 0.3 0.55 V IODL Output LOW Current V CC = 5V, VIN = VIH OR VIL, VOUT = 1.5V(3) 60 115 150 mA IODH Output HIGH Current V CC = 5V, VIN = VIH OR VIL, VOUT = 1.5V(3) –60 –115 –150 mA 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 = 5.0V, +25°C 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 determined by device characterization but is not production tested. Capacitance (TA = 25°C, f = 1 MHz) Parameters(4) Description Test Conditions Typ Max. Units C IN Input Capacitance V IN = 0V 4.5 6 pF C OUT Output Capacitance V OUT = 0V 5.5 8 pF

PI74FCT16541/162541/162H541T 16-BIT BUFFER/LINE DRIVERS

233 PS2037A 03/11/96

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 Power Supply Characteristics Parameters Description Test Conditions (1) Min. Typ (2) Max. Units ICC Quiescent Power V CC = Max. V IN = GND or VCC 0.1 500 µA Supply Current DICC Supply Current per V CC = Max. V IN = 3.4V(3) 0.5 1.5 mA Input @ TTL HIGH ICCD Supply Current per V CC = Max., V IN = VCC 60 100 µA/ Input per MHz(4) Outputs Open V IN = GND MHz X OE = GND One Bit Toggling 50% Duty Cycle IC Total Power Supply V CC = Max., V IN = VCC 0.6 1.5 (5) mA Current(6) Outputs Open V IN = GND fI = 10 MHZ 50% Duty Cycle X OE = GND One Bit Toggling V IN = 3.4V 0.9 2.3 (5) V IN = GND V CC = Max., V IN = VCC 2.4 4.5 (5) Outputs Open V IN = GND fI = 2.5 MHZ 50% Duty Cycle X OE = GND 16 Bits Toggling V IN = 3.4V 6.4 16.5 (5) V IN = GND Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 5.0V, +25°C ambient. 3. Per TTL driven input (VIN = 3.4V); 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 + DICC DH N T + ICCD (fCP /2 + fIN I) ICC = Quiescent Current DICC = Power Supply Current for a TTL High Input (VIN = 3.4V) D H = Duty Cycle for TTL Inputs High N T = 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) fI = Input Frequency N I = Number of Inputs at fI All currents are in milliamps and all frequencies are in megahertz.

PI74FCT16541/162541/162H541T 16-BIT BUFFER/LINE DRIVERS

234 PS2037A 03/11/96

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 21234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 PI74FCT16541T Switching Characteristics over Operating Range 16541T 16541AT 16541CT 16541DT 16541ET Parameters Description Conditions (1) Min Max Min Max Min Max Min Max Min Max Unit tPHL X A X to X Y X R L = 500W tPZL xOE to xAx or xYx tPLZ xOE to xAx or xYx PI74FCT162541T Switching Characteristics over Operating Range 162541T 162541AT 162541CT 162541DT 162541ET Parameters Description Conditions (1) Min Max Min Max Min Max Min Max Min Max Unit tPHL X A X to X Y X R L = 500W tPZL xOE to xAx or xYx tPLZ xOE to xAx or xYx PI74FCT162H541T Switching Characteristics over Operating Range 162H541T 162H541AT 162H541CT 162H541DT 162H541ET Parameters Description Conditions (1) Min Max Min Max Min Max Min Max Min Max Unit tPHL X A X to X Y X R L = 500W tPZL xOE to xAx or xYx tPLZ xOE to xAx or xYx Notes: 1. See test circuit and wave forms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. This parameter is guaranteed but not production tested. 4. 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