GAB

GBA

EN1

EN2

B1

11

B2

10

B3

9

B4

8

A1

3

A2

4

1

13

A3

5

A4

6

1

2

3

1

GBA

B1

11

13

4

B2

10

5

B3

9

GAB

A1

A2

A3

A4

6

B4

8

SN54LS243, SN74LS243

SDLS145A – APRIL 1985 – REVISED JULY 2008 ............................................................................................................................................................. www.ti.com

LOGIC SYMBOL

A.

These symbols are in accordance with ANSI/EEE Std. 91-1984 and IEC Publication 617-12.

LOGIC DIAGRAM (POSITIVE LOGIC)

2

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Copyright © 1985–2008, Texas Instruments Incorporated

Product Folder Link(s): SN54LS243 SN74LS243