IDT70824S25PF集成电路（IC）的存储器规格书PDF中文资料

描述 Description

The IDT70824 is a high-speed 4K x 16-Bit Sequential Access Random Access Memory (SARAM).

特性 Features

◆ High-speed access

– Military: 35/45ns (max.)

– Commercial: 20/25/35/45ns (max.)

◆ Low-power operation

– IDT70824S

Active: 775mW (typ.)

Standby: 5mW (typ.)

– IDT70824L

Active: 775mW (typ.)

Standby: 1mW (typ.)

◆ 4K x 16 Sequential Access Random Access Memory (SARAM™)

– Sequential Access from one port and standard Random

Access from the other port

– Separate upper-byte and lower-byte control of the

Random Access Port

◆ High speed operation

– 20ns tAA for random access port

– 20ns tCD for sequential port

– 25ns clock cycle time

◆ Architecture based on Dual-Port RAM cells

◆ Compatible with Intel BMIC and 82430 PCI Set

◆ Width and Depth Expandable

◆ Sequential side

– Address based flags for buffer control

– Pointer logic supports up to two internal buffers

◆ Battery backup operation - 2V data retention

◆ TTL-compatible, single 5V (+10) power supply

◆ Available in 80-pin TQFP and 84-pin PGA

◆ Military product compliant to MIL-PRF-38535 QML

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

for selected speeds