1

PS8160C

09/27/04

Description

PericomSemiconductor’sPI74VCX16244 buffer/driverisdesigned

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 true 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; the minimum

value of the resistor is determined by the current-sinking capability

of the driver.

The PI74VCX family is I/O Tolerant, allowing it to operate in

1.8/3.6V systems.

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Features

• The PI74VCX Family is designed for low voltage

• 3.6V Tolerant Inputs and Outputs

• Supports Live Insertion

• Balanced Drive, ±24mA

• Uses patented Noise Reduction Circuitry

• Power-Off high impedance inputs and outputs

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

• Packaging (Pb-free & Green available):

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

PI74VCX16244

16-Bit Buffer/Driver

with 3-State Outputs

Block Diagram

3

3

3

3

2

2

2

2

4

4

4

4

1

1

1

1

1

OE

1

1

1

1

3

OE

3

3

3

3

2

OE

2

2

2

2

4

OE

4

4

4

4

43

44

46

47

1

37

38

40

41

48

12

11

9

8

6

5

3

2

32

33

35

36

25

17

16

14

13

26

27

29

30

24

23

22

20

19