HIGH-SPEED 3.3V 32K x 16 DUAL-PORT STATIC RAM
HIGH-SPEED 3.3V 32K x 16 DUAL-PORT STATIC RAM
IDT70V27S/L
Features:
x True Dual-Ported memory cells which allow simult...
Description
HIGH-SPEED 3.3V 32K x 16 DUAL-PORT STATIC RAM
IDT70V27S/L
Features:
x True Dual-Ported memory cells which allow simultaneous access of the same memory location
x High-speed access – Industrial: 35ns (max.) – Commercial: 15/20/25/35/55ns (max.)
x Low-power operation – IDT70V27S Active: 500mW (typ.) Standby: 3.3mW (typ.) – IDT70V27L Active: 500mW (typ.) Standby: 660µW (typ.)
x Separate upper-byte and lower-byte control for bus matching capability
x Dual chip enables allow for depth expansion without external logic
Functional Block Diagram
R/WL UBL
CE0L CE1L
OEL LBL
x IDT70V27 easily expands data bus width to 32 bits or more using the Master/Slave select when cascading more than one device
x M/S = VIH for BUSY output flag on Master, M/S = VIL for BUSY input on Slave
x Busy and Interrupt Flags x On-chip port arbitration logic x Full on-chip hardware support of semaphore signaling
between ports x Fully asynchronous operation from either port x LVTTL-compatible, single 3.3V (±0....
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