IDT IDT71421SA
The IDT71321/IDT71421 are high-speed 2K x 8 DualPort StatFEATURES
:● High-speed access —Commercial: 20/25/35/45/55ns (max.)
● Low-power operation —IDT71321/IDT71421SA —Active: 550mW (typ.) —Standby: 5mW (typ.) —IDT71321/421LA —Active: 550mW (typ.) —Standby: 1mW (typ.)
● Two INT flags for port-to-port communications
● MASTER IDT71321 easily expands data bus width to 16- or-more-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-compatible, single 5V ±10% power supply
● Available in popular hermetic and plastic packages
● Industrial temperature range (–40°C to +85°C) is avail- able, tested to military electrical specifications
DESCRIPTION
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