9338_11 Datasheet, PDF (2/8 Pages) Texas Instruments – 9338/DM9338 8-Bit Multiple Port Register

June 1989
9338 DM9338 8-Bit Multiple Port Register
General Description
The DM9338 is an 8-bit multiple port register designed for
high speed random access memory applications where the
ability to simultaneously read and write is desirable A com-
mon use would be as a register bank in a three address
computer Data can be written into any one of the eight bits
and read from any two of the eight bits simultaneously
Connection Diagrams
Dual-In-Line Package
te _{TL F 9794–1}
Order Number 9338DMQB 9338FMQB or DM9338N
le ^{See NS Package Number J16A N16E or W16A}
Pin Names
A0 – A2
D_A
B0 – B2
o _C0–C2
CP
SLE
Z_B
Obs ^ZC
Description
Write Address Inputs
Data Input
B Read Address Inputs
C Read Address Inputs
Clock Pulse Input (Active Rising Edge)
Slave Enable Input (Active LOW)
B Output
C Output
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C1995 National Semiconductor Corporation TL F 9794
RRD-B30M115 Printed in U S A