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71421LA

Part Number	71421LA
Manufacturer	IDT
Description	HIGH SPEED 2K x 8 DUAL-PORT STATIC RAM
Published	Nov 14, 2019
Detailed Description	HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS 71321SA/LA 71421SA/LA Features ◆ High-speed access – Commercial...
Datasheet	71421LA PDF File

Overview

HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM WITH INTERRUPTS 71321SA/LA 71421SA/LA Features ◆ High-speed access – Commercial: 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 communications ◆ 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-compatible, 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 I/O0L- I/O7L BUSYL(1,2) A10L A0...

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