7028数据手册Renesas中文资料规格书

描述 Description

The 7028 is a high-speed 64K x 16 Dual-Port Static RAM designed to be used as a stand-alone 1024K-bit Dual-Port RAM or as a combination MASTER/SLAVE Dual-Port RAM for 32-bit-ormore word systems. An automatic power down feature controlled by the chip enables (CE0 and CE1) permit the on-chip circuitry of each port to enter a very low standby power mode.

特性 Features

True Dual-Ported memory cells which allow simultaneous reads of the same memory location
Dual chip enables allow for depth expansion without external logic
7028 easily expands data bus width to 32 bits or more
Interrupt Flag and On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling between ports
Fully asynchronous operation from either port
Separate upper-byte and lower-byte controls for multiplexed bus and bus matching compatibility
TTL-compatible, single 5V (±10%) power supply
Available in a 100-pin TQFP package
Industrial temperature range (–40C to +85C) is available