IDT 6178S12Y CMOS Static RAM (4K x 4-BIT) Cache-Tag RAM SOIC24

Manufactured by IDT - 24 Pin SOIC Chip - SMD

The IDT6178 is a high-speed cache address comparator sub-system consisting of a 16,384-bit StaticRAM organized as 4K x 4. Cycle Time and Address to MATCH Valid are equal.

The IDT6178 features an onboard 4-bit comparator that compares RAM contents and current input data. The result is an active HIGH on the MATCH pin. The MATCH pins of several IDT6178s can be handed together to provide enabling or acknowledging signals to the data cache or processor.

The IDT6178 is fabricated using IDT’s high-performance, high-reliability CMOS technology. Address to MATCH and Data to MATCH times are as fast as 10ns. All inputs and outputs of the IDT6178 are TTL-compatible and the device operates from a single 5V supply.

• High-speed Address to MATCH Valid time
• – Military: 12/15/20/25ns
• – Commercial: 10/12/15/20/25ns (max.)
• High-speed Address Access time
• – Military: 12/15/20/25ns
• – Commercial: 10/12/15/20/25ns (max.)
• Low-power consumption
• – IDT6178S
• Active: 300mW (typ.)
• Produced with advanced CMOS high-performance technology
• Input and output TTL-compatible