9338 Datasheet | National Semiconductor

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 mon use would be as a register bank in a three address puter 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 mercial 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 these limits The parametric values defined in the ‘‘Electrical Characteristics’’ table are not guaranteed at the absolute maximum ratings The ‘‘Remended Operating Conditions’’ table will define the conditions for actual device operation Remended Operating Conditions Symbol VCC VIH VIL IOH IOL TA ts (H) ts (L) th (H) th (L) ts (H) ts (L) th (H) th (L) tw (H) tw (L) Parameter Min Supply Voltage High Level Input Voltage Low Level Input Voltage High Level Output Current Low Level Output Current Free Air Operating Temperature Setup Time HIGH or LOW DA to CP Hold Time HIGH or LOW DA to CP Setup Time HIGH or LOW...