PI74ALVCH16827 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 20-Bit Buffer/Driver with 3-State Outputs Product Features Product Description • PI74ALVCH16827 is designed for low voltage operation Pericom Semiconductors PI74ALVCH series of logic circuits are produced using the Companys advanced 0.5 micron CMOS technology, achieving industry leading speed grades. The PI74ALVCH16827 is a 20-bit non-inverting buffer/driver designed for 2.3V to 3.6V Vcc operation. The buffer/driver is composed of two 10-bit sections with separate output-enable signals. For either 10-bit buffer section, the two output-enable (1OE1 and 1OE2 or 2OE1 and 2OE2 inputs must both be low for the corresponding Y outputs to be active. If either outputenable input is HIGH, the outputs of that 10-bit buffer section are in the high-impedance state. • VCC = 2.3V to 3.6V • Hysteresis on all inputs • Typical VOLP (Output Ground Bounce) < 0.8V at VCC = 3.3V, TA = 25°C • Typical VOHV (Output VOH Undershoot) < 2.0V at VCC = 3.3V, TA = 25°C • Bus Hold retains last active bus state during 3-state, eliminating the need for external pullup resistors • Industrial operation at 40°C to +85°C • Packages available: 56-pin 240 mil wide plastic TSSOP (A) 56-pin 300 mil wide plastic SSOP (V) To ensure the high-impedance state during power up or power down, OE should be tied to Vcc through a pull-up resistor; the minimum value of the resistor is determined by the current sinking ability of the driver. The PI74ALVCH16827 has the Bus Hold which retains the data inputs last state whenever the data input goes to high-impedance preventing floating inputs and eliminating the need for pullup/ down resistors. Logic Block Diagram 1OE1 1OE2 1A1 1 2OE1 56 55 2OE2 2 1Y1 2A1 To 9 other channels 28 29 42 15 2Y1 To 9 other channels 1 PSXXXX 02/10/00 PI74ALVCH16827 20-Bit Buffer/Driver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Product Pin Description Pin Name Truth Table(1) Inputs D e s cription OE O utput Enable Inputs (Active LOW) AX Data Inputs YX 3- State O utputs GND Ground VCC Power 1 2 56 55 1OE2 3 4 5 54 53 52 1A2 6 7 8 51 50 49 1A4 1A5 9 10 48 1A6 47 1A7 1Y9 13 46 45 44 GND 1Y8 11 12 1Y10 14 15 16 1OE1 1Y1 1Y2 GND 1Y3 1Y4 VCC 1Y5 1Y6 1Y7 GND 2Y1 56-PIN 43 V56 A56 42 2Y7 22 23 35 34 2A7 2Y8 24 33 2A8 GND 25 26 32 31 GND 2A9 27 28 30 29 2OE2 2Y10 2OE1 L L H H H X X Z X H X Z High Signal Level Low Signal Level Irrelevant High Impedance 1A10 2A4 2Y9 L 2A1 38 37 36 VCC L 1A9 19 20 21 2Y6 L 1A8 2A3 2Y5 L VCC 2A2 2Y4 Y 1A3 40 39 GND A GND 41 2Y3 OE2 1A1 17 18 2Y2 OE1 Note: 1. H = L= X= Z= Product Pin Configuration Outputs GND 2A5 2A6 VCC 2A10 2 PSXXXX 02/10/00 PI74ALVCH16827 20-Bit Buffer/Driver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ................................................................. 65°C to +150°C Ambient Temperature with Power Applied .............................. 40°C to +85°C Input Voltage Range, VIN ............................................................. 0.5V to VCC +0.5V Output Voltage Range, VOUT ...................................................... 0.5V to VCC +0.5V DC Input Voltage .......................................................................... 0.5V to +5.0V DC Output Current .................................................................................. 100 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 = 40°C to +85°C, VCC = 3.3V ± 10%) Parame te rs D e s cription VCC Supply Voltage VIH(3) Input HIGH Voltage VIL(3) Input LO W Voltage VIN (3) VOUT(3) VOH VOL IOH(3) IOL(3) Te s t Conditions (1) M in. 2.3 VCC = 2.3V to 2.7V 1.7 VCC = 2.7V to 3.6V 2.0 Typ.(2) M ax. 3.6 VCC = 2.3V to 2.7V 0.7 VCC = 2.7V to 3.6V 0.8 Input Voltage 0 VCC O utput Voltage 0 VCC O utput HIGH Voltage O utput LO W Voltage O utput HIGH Current O utput LO W Current IOH = - 100mA, VCC = Min. to Max. VCC - 0.2 VIH = 1.7V, IOH = - 6mA, VCC = 2.3V 2.0 VIH = 1.7V, IOH = - 12mA, VCC = 2.3V 1.7 VIH = 2.0V, IOH = - 12mA, VCC = 2.7V 2.2 VIH = 2.0V, IOH = - 12mA, VCC = 3.0V 2.4 VIH = 2.0V, IOH = - 24mA, VCC = 3.0V 2.0 V IOL = 100mA, VIL = Min. to Max. 0.2 VIL = 0.7V, IOL = 6mA, VCC = 2.3V 0.4 VIL = 0.7V, IOL = 12mA, VCC = 2.3V 0.7 VIL = 0.8V, IOL = 12mA, VCC = 2.7V 0.4 VIL = 0.8V, IOL = 24mA, VCC = 3.0V 0.55 VCC = 2.3V - 12 VCC = 2.7V - 12 VCC = 3.0V - 24 VCC = 2.3V 12 VCC = 2.7V 12 VCC = 3.0V 24 3 Units PSXXXX mA 02/10/00 PI74ALVCH16827 20-Bit Buffer/Driver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 DC Electrical Characteristics-Continued (Over the Operating Range, TA = 40°C to +85°C, VCC = 3.3V ±10%) Te s t Conditions (1) Parame te rs De s cription Input Current IIN Typ.(2) VIN = VCC or GND, VCC = 3.6V Input Hold Current IIN (HOLD) M in. M ax. ±5 VIN = 0.7V, VCC = 2.3V 45 VIN = 1.7V, VCC = 2.3V - 45 VIN = 0.8V, VCC = 3.0V 75 VIN = 2.0V, VCC = 3.0V - 75 VIN = 0 to 3.6V, VCC = 3.6V ±500 IOZ Output Current (3- STATE Outputs) VOUT = VCC or GND, VCC = 3.6V ±10 ICC Supply Current VCC = 3.6V, IOUT = 0mA, VIN = GND or VCC 40 DICC Supply Current per Input @ TTL HIGH VCC = 3.0V to 3.6V One Input at VCC - 0.6V Other Inputs at VCC or GND 750 Control Inputs CI Outputs CO mA 3.5 VIN = VCC or GND, VCC = 3.3V Data Inputs Units 6 VO = VCC or GND, VCC = 3.3V pF 7.5 Notes: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 3.3V, +25°C ambient and maximum loading. 3. Unused Control Inputs must be held HIGH or LOW to prevent them from floating. Switching Characteristics over Operating Range(1) Parame te rs VCC = 2.5V ± 0.2V VCC = 2.7V From To (INPUT) (OUTPUT) M in.(2) M ax. M in.(2) M ax. tPD A tEN OE tDIS OE Dt/Dv(1) Y Transition Rise or Fall VCC = 3.3V ± 0.3V M in.(2) M ax.(2) 1.0 4.7 3.9 1.0 3.4 1.0 6.5 5.7 1.0 4.7 1.9 5.8 4.9 1.3 4.5 0 10 10 0 10 0 Units MHz ns ns/V Notes: 1. See test circuit and wave forms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. Operating Characteristics, TA = 25ºC Parame te r CPD Power Dissipation Capacitance Te s t Conditions Outputs Enabled Outputs Disabled CL = 50pF, f = 10 MHz VCC = 2.5V ± 0.2V VCC = 3.3V ± 0.3V Typical 16 18 4 6 Units pF Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 4 PSXXXX 02/10/00