71421LA
Description
The IDT71321/IDT71421 are high-speed 2K x 8 Dual-Port Static RAMs with internal interrupt logic for interprocessor munications.
Key Features
- 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)
- Available in 52-Pin PLCC, 52-Pin STQFP, 64-Pin TQFP, and
- Industrial temperature range (–40°C to +85°C) is available
- Green parts available, see
