7028L - Renesas

7028L HIGH-SPEED 64K x 16 DUAL-PORT STATIC RAM

The IDT7028 is a high-speed 64K x 16 Dual-Port Static RAM. The IDT7028 is 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. Using the IDT MASTER/SLAVE Dual-Port RAM approach in 32-bit or wider memory system applications results in fullspeed, error-free operation without.

Features

◆ True Dual-Ported memory cells which allow simultaneous reads of the same memory location ◆ High-speed access
  – Commercial: 15ns (max.)
  – Industrial: 20ns (max.) ◆ Low-power operation
  – IDT7028L Active: 1W (typ.) Standby: 1mW (typ.) ◆ Dual chip enables allow for depth expansion without external logic ◆ IDT7028 easily expands data bus width to 32 bits or more using the Master/Slave select when cascading more than one device Functional Block Diagram R/WL UBL CE0L CE1L OEL LBL ◆ M/S = VIH for BUSY output flag on Master, M/S = VIL for BUSY input on Slave ◆ Interrupt Flag ◆ On-chip port arbitrati.