71321SA Datasheet Text
HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS
71321SA/LA 71421SA/LA
Features
- High-speed access
- mercial: 20/35/55ns (max.)
- Industrial: 25/55ns (max.)
- Low-power operation
- IDT71321/IDT71421SA
- Active: 325mW (typ.)
- Standby: 5mW (typ.)
- IDT71321/421LA
- Active: 325mW (typ.)
- Standby: 1mW (typ.)
- Two INT flags for port-to-port munications
- MASTER IDT71321 easily expands data bus width to 16-ormore-bits using SLAVE IDT71421
- On-chip port arbitration logic (IDT71321 only)
- BUSY output flag on IDT71321; BUSY input on IDT71421
- Fully asynchronous operation from either port
- Battery backup operation
- 2V data retention (LA only)
- TTL-patible, single 5V ±10% power supply
- Available in 52-Pin PLCC, 52-Pin STQFP, 64-Pin TQFP, and
64-Pin STQFP
- Industrial temperature range (- 40°C to +85°C) is available for selected speeds
- Green parts available, see ordering information
Functional Block Diagram
OEL
CEL R/WL
OER
CER R/WR...
