IDT7008S55JI中文资料IDT数据手册PDF规格书

Description

The IDT7008 is a high-speed 64K x 8 Dual-Port Static RAM. The IDT7008 is designed to be used as a stand-alone 512K-bit Dual-Port RAM or as a combination MASTER/SLAVE Dual-Port RAM for 16-bit-or-more word systems. Using the IDT MASTER/SLAVE Dual-Port RAM approach in 16-bit or wider memory system applications results in full-speed, error-free operation without the need for additional discrete logic.

Features

◆ True Dual-Ported memory cells which allow simultaneous reads of the same memory location

◆ High-speed access

– Military: 25/35/55ns (max.)

– Industrial: 55ns (max.)

– Commercial: 20/25/35/55ns (max.)

◆ Low-power operation

– IDT7008S

Active: 750mW (typ.)

Standby: 5mW (typ.)

– IDT7008L

Active: 750mW (typ.)

Standby: 1mW (typ.)

◆ Dual chip enables allow for depth expansion without external logic

◆ IDT7008 easily expands data bus width to 16 bits or more using the Master/Slave select when cascading more than one device

◆ M/S = VIH for BUSY output flag on Master, M/S = VIL for BUSY input on Slave

◆ Interrupt Flag

◆ On-chip port arbitration logic

◆ Full on-chip hardware support of semaphore signaling between ports

◆ Fully asynchronous operation from either port

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

◆ Available in 84-pin PGA, 84-pin PLCC, and a 100-pin TQFP

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