Signetics 93425A
The 93415A and 93425A are high speed 1024-bit random access memories organized as 1024 words X 1 bit. With a typical access time of 30ns, they are ideal for cache buffer applications and for systems requiring very high speed main memory. Both the 93415A and 93425A require -a single +5 volts power supply and feature very low current PNP input structures.| Part No. | 93425A |
|---|---|
| Datasheet | 93425A Download |
| Manufacturer |  Signetics |
| Description | TTL MEMORY |
| Buy | Stock & Price |
DESCRIPTION
They are fu lIy TTL compatible, and include on-chip decoding and a chip enable input for ease of memory expansion. They feature either Open Collector or Tri-State outputs for optimization of word expansion in bussed organizations. Both 93415A and 93425A devices are available in the commercial temperature range (DoC to +75°C).FEATURES
● ORGANIZATION - 1024 X 1● ADDRESS ACCESS TIME - 45n5, MAXIMUM
● WRITE CYCLE TIME - 45n5, MAXIMUM
● POWER DISSIPATION - 0.5mW/BIT, TYPICAL
● INPUT LOADING - (-100JlA) MAXIMUM
● ON-CHIP ADDRESS DECODING
● OUTPUT OPTIONS: 93415A - OPEN COLLECTOR 93425A - TRI-STATE
● NON-INVERTING OUTPUT
● BLANKED OUTPUT DURING WRITE
● 16 PIN CERAMIC PACKAGE PIN CONFIGURATION I PACKAGE* CE 1 AO 2 16 Vcc 14 WE 13 Ag "I - Ceramic 9 AS TRUTH TABLE MODE CE WE DIN DOUT 93415A 93425A READ 01 X STORED STORED DATA DATA WRITE "0" 0 0 0 1 High-Z WR ITE "1" 0 0 1 1 High-Z DISABLED 1 X X x = Don't care. 1 High-Z BLOCK DIAGRAM
APPLICATIONS
HIGH SPEED MAIN FRAME CACHE MEMORY BUFFER STORAGE CE WRITABLE CONTROL STORE 82 SIGNETICS 1024 X 1 BIT BIPOLAR RAM.
