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PI74ALVCH162244

16-Bit Buffer Driver with 3-State Outputs

Pericom Semiconductor 

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16-Bit Buffer Driver

with 3-State Outputs

Product Features

• PI74ALVCH162244 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

• Output ports have equivalent 26-Ohm series resistors:

no external resistors are required

• Bus Hold retains last active bus state during 3-State,

eliminating the need for external pullup resistors

• Industrial operation: –40°C to +85°C

• Packages available:

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

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

Logic Block Diagram

Product Description

Pericom Semiconductor’s PI74ALVCH series of logic circuits

are produced using the Company’s advanced 0.5 micron CMOS

technology, achieving industry leading speed.

The PI74ALVCH162244 is an non-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 non-inverting outputs and symmetri-

cal 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 capability

of the driver.

The PI74ALVCH162244 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.

1OE

3OE

1A0

1Y0

3A0

3Y0

1A1

1Y1

3A1

3Y1

1A2

1Y2

3A2

3Y2

1A3

1Y3

3A3

3Y3

2OE

4OE

2A0

2Y0

4A0

4Y0

2A1

2Y1

4A1

4Y1

2A2

2Y2

4A2

4Y2

2A3

2Y3

4A3

4Y3

1

PS8092B 10/15/01

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