70V657 Overview
The IDT70V659/58/57 is a high-speed 128/64/32K x 36 Asynchronous Dual-Port Static RAM. The IDT70V659/58/57 is designed to be used as a stand-alone 4/2/1Mbit Dual-Port RAM or as a bination MASTER/ SLAVE Dual-Port RAM for 72-bit-or-more word system. Using the MASTER/SLAVE Dual-Port RAM approach in 72-bit or wider memory system applications results in full-speed, error-free operation without the need for additional...
70V657 Key Features
- True Dual-Port memory cells which allow simultaneous access of the same memory location
- High-speed access
- mercial: 10/12/15ns (max.)
- Industrial: 12ns (max.)
- Dual chip enables allow for depth expansion without external logic
- IDT70V659/58/57 easily expands data bus width to 72 bits or more using the Master/Slave select when cascading more than
- M/S = VIH for BUSY output flag on Master, M/S = VIL for BUSY input on Slave
- Busy and Interrupt Flags
- On-chip port arbitration logic
- Full on-chip hardware support of semaphore signaling between ports