Datasheet Summary
SN54LS243, SN74LS243
.ti. ............................................................................................................................................................. SDLS145A
- APRIL 1985
- REVISED JULY 2008
QUADRUPLE BUS TRANSCEIVERS
Features
- Two-Way Asynchronous munication Between Data Buses
- PNP Inputs Reduce D-C Loading
- Hysteresis (Typically 400 mV) at Inputs
Improves Noise Margin
SN54LS243 . . . J OR W PACKAGE SN74LS243 . . . D, N, OR NS PACKAGE
(TOP VIEW)
GAB NC A1 A2 A3 A4
1 2 3 4 5 6 7
14 VCC 13 GBA 12 NC 11 B1 10 B2 9 B3 8 B4
FUNCTION TABLE (EACH TRANSCEIVER)
INPUTS
SNxxLS243
A to B B to A Isolation Latch A...
