IDT71V421S55PF中文资料IDT数据手册PDF规格书

描述 Description

The IDT71V321 is a high-speed 2K x 8 Dual-Port Static RAMs with internal interrupt logic for interprocessor communications. The IDT71V321 is designed to be used as a stand-alone 8-bit Dual-Port RAM.

特性 Features

◆ High-speed access

– Commercial & Industrial: 25/35/55ns (max.)

◆ Low-power operation

– IDT71V321S

— Active: 325mW (typ.)

— Standby: 5mW (typ.)

– IDT71V321L

— Active: 325mW (typ.)

— Standby: 1mW (typ.)

◆ Two INT flags for port-to-port communications

◆ On-chip port arbitration logic (IDT71V321 only)

◆ BUSY output flag

◆ Fully asynchronous operation from either port

◆ Battery backup operation—2V data retention (L only)

◆ TTL-compatible, single 3.3V power supply

◆ Available in 52-pin PLCC, 64-pin TQFP and STQFP

packages

◆ Industrial temperature range (–40°C to +85°C) is available

for selected speeds

◆ Green parts available, see ordering information