描述 Description

The IDT7024 is a high-speed 4Kx 16 Dual-Port Static RAM. The IDT7024 is designed to be used as a stand-alone 64K-bit Dual-Port RAM or as a combination MASTER/SLAVE Dual-Port RAM for 32-bit or more word systems. Using the IDT MASTER/SLAVE Dual-Port RAM approach in 32-bit or wider memory system applications results in full-speed, error free operation without the need for additional discrete logic.

特性 Features

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

◆ High-speed access

– Military: 20/25/35/55/70ns (max.)

– Industrial: 55ns (max.)

– Commercial: 15/17/20/25/35/55ns (max.)

◆ Low-power operation

– IDT7024S

Active: 750mW (typ.)

Standby: 5mW (typ.)

– IDT7024L

Active: 750mW (typ.)

Standby: 1mW (typ.)

◆ Separate upper-byte and lower-byte control for multiplexed bus compatibility

◆ IDT7024 easily expands data bus width to 32 bits or more using

the Master/Slave select when cascading more than one device

◆ M/S= H for BUSYoutput flag on Master

M/S= L for BUSYinput 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

◆ Battery backup operation—2V data retention

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

◆ Available in 84-pin PGA, Flatpack, PLCC, and 100-pin Thin Quad Flatpack

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

◆ Green parts availble, see ordering information