Rev.3.00, Jul.15.2005, page 1 of 5

HD74LS245

Octal Bus Transceivers (with three-state outputs)

REJ03D0464–0300

Rev.3.00

Jul.15.2005

This octal bus transceiver is designed for synchronous two-way communication between data buses. The control

function implementation minimizes external timing requirements. The device allows data transmission from the A bus

to the B bus or from the B bus to the A bus depending upon the logic level at the direction control (DIR) input. The

enable input (

G) can be used to disable the device so that the buses are effectively isolated.

Features

• Ordering Information

Part Name

Package Type

Package Code

(Previous Code)

Package

Abbreviation

Taping Abbreviation

(Quantity)

HD74LS245P

DILP-20 pin

PRDP0020AC-B

(DP-20NEV)

P

—

HD74LS245FPEL

SOP-20 pin (JEITA)

PRSP0020DD-B

(FP-20DAV)

FP

EL (2,000 pcs/reel)

HD74LS245RPEL

SOP-20 pin (JEDEC)

PRSP0020DC-A

(FP-20DBV)

RP

EL (1,000 pcs/reel)

Note:

Please consult the sales office for the above package availability.

Pin Arrangement

(Top view)

GND

DIR

Enable

G

20

17

18

19

15

16

1

2

3

4

5

6

7

14

8

9

10

11

12

13