PI74FCT162Q244T PERICOM | Alldatasheet

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LOW NOISE 16-BIT BUFFER/LINE DRIVER

1 PS2049A 04/12/96

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 Product Description: Pericom Semiconductor’s PI74FCT series of logic circuits are pro- duced in the Company’s advanced 0.6 micron CMOS technology, achieving industry leading speed grades. The PI74FCT162Q244T is a non-inverting 16-bit buffer/line driver designed for bus interface applications where low noise operation is essential. The PI74FCT162Q244T is designed with current limiting resistors at its outputs to control the output edge rate resulting in lower ground bounce and undershoot. This device features a typical output impedance of 35W , eliminating the need for external terminating resistors for most bus interface applications. This noise suppression benefit is designated by the letter “Q” (for quiet) in the part number. The PI74FCT162Q244T also features “Bus Hold” which retains the input’s last state whenever the input goes to high-impedance preventing “floating” inputs and eliminating the need for pullup/ down resistors. This high-speed, low power device also features a flow-through organization for ease of board layout. These devices are designed with three-state controls to operate in a Quad-Nibble, Dual-Byte, or a single 16-bit word mode. PI74FCT162Q244T Fast, Low Noise CMOS 16-Bit Buffer/Line Driver Product Features:

  • V CC = 5V ±10%
  • Balanced output drivers: ±12 mA
  • Output impedance: 35W (typical)
  • Typical VOLP (Output Ground Bounce) < 0.5V at VCC = 5V, TA = 25°C
  • Bus Hold retains last active bus state during tri-state
  • Hysteresis on all inputs
  • Packages available: – 48-pin 240 mil wide plastic TSSOP (A) – 48-pin 300 mil wide plastic SSOP (V) – 48-pin 150 mil wide plastic BQSOP (B)
  • Device models available on request Logic Block Diagram 1OE 1A01 Y0 1A11 Y1 1A21 Y2 1A3 1Y3 3OE 3A03 Y0 3A13 Y1 3A23 Y2 3A33 Y3 2OE 2A02 Y0 2A12 Y1 2A22 Y2 2A3 2Y3 4OE 4A04 Y0 4A14 Y1 4A24 Y2 4A34 Y3

LOW NOISE 16-BIT BUFFER/LINE DRIVER

2 PS2049A 04/12/96

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 Product Pin Description Pin Name Description xOE 3-State Output Enable Inputs (Active LOW) xAx Inputs (1) xYx 3-State Outputs GND Ground V CC Power Inputs(1) Outputs(1) X OE xAx xYx LL L LH H HX Z Truth Table Note: 1. H = High Voltage Level X = Don’t Care L = Low Voltage Level Z = High Impedance Product Pin Configuration Note: 1. For the PI74FCT162Q244T, these pins have “Bus Hold.” All other pins are standard, outputs, or I/Os. 1OE 1Y0 1Y1 GND 1Y2 1Y3 VCC 2Y0 2Y1 GND 2Y2 2Y3 3Y0 3Y1 GND 3Y2 3Y3 VCC 4Y0 4Y1 GND 4Y2 4Y3 4OE 2OE 1A0 1A1 GND 1A2 1A3 VCC 2A0 2A1 GND 2D 2 2A3 3A0 3A1 GND 3A2 3A3 VCC 4A0 4A1 GND 4A3 3OE 48-PIN V48 A48 B48

LOW NOISE 16-BIT BUFFER/LINE DRIVER

3 PS2049A 04/12/96

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 Bus Hold Input (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 Bus Hold Input (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 High Impedance V CC = Max. V OUT = VCC 1µ A IOZL Output Current V CC = Max. V OUT = GND –1 µA V IK Clamp Diode Voltage V CC = Min., IIN = –18 mA –0.7 –1.2 V IO Output Drive Current V CC = Max.(3), VOUT = 2.5V –50 –180 mA V H Input Hysteresis 100 mV 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 V CC = 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.

LOW NOISE 16-BIT BUFFER/LINE DRIVER

4 PS2049A 04/12/96

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 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 = –12.0 mA 2.4 3.3 — V V OL Output LOW Voltage V CC = Min., VIN = VIH or VIL IOL = 12 mA — 0.4 0.55 V Output Drive Characteristics (Over the Operating Range) Parameters Description Test Conditions (1) Min. Typ (2) Max. Units IODL Output LOW Current V CC = 5V, VIN = VIH OR VIL, VOUT = 1.5V(3) 36 — — mA IODH Output HIGH Current V CC = 5V, VIN = VIH OR VIL, VOUT = 1.5V(3) -100 -166 -200 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 tested 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

LOW NOISE 16-BIT BUFFER/LINE DRIVER

5 PS2049A 04/12/96

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.

LOW NOISE 16-BIT BUFFER/LINE DRIVER

6 PS2049A 04/12/96

1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 Switching Characteristics over Operating Range 162Q244T 162Q244AT 162Q244CT 162Q244DT 162Q244ET 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 X OE to X A X or X Y X tPLZ X OE to X A X or X Y X 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