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PI74ALVCH16240A

Inverting 16-Bit Buffer Driver with 3-STATE Outputs

Pericom Semiconductor 

PI74ALVCH16240

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Product Features

Inverting 16-Bit Buffer Driver

with 3-STATE Outputs

Product Description

• PI74ALVCH16240 is designed for low voltage operation

• 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:

– 48-pin 240 mil wide plastic TSSOP (A)

– 48-pin 300 mil wide plastic SSOP (V)

Pericom Semiconductor’s PI74ALVCH series of logic circuits

are produced in the Company’s advanced 0.5 micron CMOS

technology, achieving industry leading speed.

The PI74ALVCH16240 is an inverting 16-bit buffer/driver

designed for low voltage 2.3V to 3.6V VCC operation.

The buffer/driver is designed specifically to improve both the

performance and density of 3-STATE memory address drivers,

clock drivers, and bus-oriented receivers and transmitters.

The device can be used as four 4-bit buffers, two 8-bit buffers, or

one 16-bit buffer. It provides inverting outputs and symmetrical

active-low output-enable (OE) inputs.

To ensure the high-impedance state during power up or power

down, OE should be tied to VCC through a pullup resistor in which

the minimum value is determined by the current-sinking capabil-

ity of the driver.

Logic Block Diagram

The PI74ALVCH16240 has “Bus Hold” which retains the data

input’s last state whenever the data input goes to high-impedance

preventing “floating” inputs and eliminating the need for pullup/

down resistors.

1

PS8086B 10/07/98

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