UMC UM6164
The UM6164 is a 65,536-bit static random access memory organized as 8192 words by 8 bits' and operates from a single 5 volt supply. It is built with UMC's high performance twin tub CMOS process. The UM6164 is moulded in a standard 28-pin, 600 mil-DIP.FEATURES
● High-speed - 45/55/70ns (Max.)● Low p'ower dissipation 300mW (Typ.) Operating 100J.l.W (Typ.) standby
● Single 5V power supply
● Fully static operation
● All inputs and outputs directly TTL compatible
● Three state outputs
● Data retention supply voltage: 2.0-5,5V
GENERAL DESCRIPTION
Inputs and three-state outputs are TTL compatible and allow for direct interfacing with common system bus structures. Pin Configuration . Block Diagram --<> Vcc ~GND ROW DECODE 256 x 256 MEMORY ARRAY AU INPUT DATA CIRCUIT COLUMN I/O .COLUMN DECODER CS2 CSt OE WE 2-43ABSOLUTE MAXIMUM RATINGS
* Terminal Voltage with Respect to GND (VTERM ) . . . . . . . . . . . . . . . .