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PS2098A 02/11/97

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PI74LCX244

Fast CMOS 3.3V 8-Bit

Buffer/Line Driver

Product Features

• Functionally compatible with FCT3, LVT, and 74 series

244 families of products

• Tri-State outputs

• 5V Tolerant inputs and outputs

• Balanced sink and source output drives (24 mA)

• Low ground bounce outputs

• Supports live insertion

• ESD Protection exceeds 2000V, Human Body Model

200V, Machine Model

• Packages available:

– 20-pin 209-mil wide plastic SSOP (H)

– 20-pin 173-mil wide plastic TSSOP (L)

– 20-pin 150-mil wide plastic QSOP (Q)

– 20-pin 300-mil wide plastic SOIC (S)

Product Description

Pericom Semiconductor’s PI74LCX series of logic circuits are

produced in the Company’s advanced 0.6 micron CMOS technology

achieving high speed while maintaining low power operation.

The PI74LCX244 is an 8-bit non-inverting buffer/line driver

designed for driving high capacitive memory loads. With its

balanced-drive characteristics, this high-speed, low power device

provides lower ground bounce, transmission line matching of

signals, fewer line reflections and lower EMI and RFI effects. This

makes it ideal for driving on-board buses and transmission lines.

The PI74LCX244 can be driven from either 3.3V or 5.0V devices

allowing this device to be used as a translator in a mixed

3.3V/5.0V system.

Logic Block Diagram

Product Pin Configuration

Product Pin Description

GND

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

Note:

1. H = High Voltage Level, X = Don’t Care,

L = Low Voltage Level, Z = High Impedance

e

m

a

N

n

i

Pn

o

i

t

p

i

r

c

s

e

D

E

O

,

B

e

l

b

a

n

E

t

u

p

t

u

O

e

t

a

t

S

-

3

)

W

O

L

e

v

i

t

c

A

(

s

t

u

p

n

I

s

t

u

p

n

I

s

t

u

p

t

u

O

D

N

Gd

n

u

o

r

G

r

e

w

o

P

s

t

u

p

n

Is

t

u

p

t

u

O

E

E

LL

L

L

LL

H

H

HH

X

Z

20-Pin

H20

L20

Q20

S20