9338

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 common 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 TL F 9794 – 1 Order Number 9338DMQB 9338FMQB or DM9338N See NS Package Number J16A N16E or W16A Pin Names A0–A2 DA B0–B2 C0–C2 CP SLE ZB 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 FAST and TRI-STATE are registered trademarks of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 9794 RRD-B30M115 Printed in U S A Absolute Maximum Ratings (Note) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage 7V Input Voltage 5 5V Operating Free Air Temperature Range b 55 C to a 125 C Military Commercial 0 C to a 70 C Storage Temperature Range b 65 C to a 150 C Note The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed The device should not be operated at thes...