GENERAL DESCRIPTION
The UT62W256C is a 262,144-bit low power CMOS static random access memory organized as 32,768 words by 8 bits. It is fabricated using high performance, high reliability CMOS technology . its standby current is stable within the range of operating temperature.
The UT62W256C is designed for high-speed and low power application. It is particularly well suited for battery back-up nonvolatile memory application.
The UT62W256C operates with wide range power supply and all inputs and outputs are fully TTL compatible

FEATURES
■ Access time : 35/70ns
■ Low power consumption:
    Operation : 40/20 mA (max.) (VCC≦3.6V)
                       50/40 mA (max.) (VCC≦5.5V)
    Standby : -L / -LL version
                    1 / 0.5uA (typical) VCC=2.7~3.6V
                    2 / 1uA (typical) VCC=4.5~5.5V
■ Wide Range power supply: 2.7V~5.5V
■ All inputs and outputs are TTL compatible
■ Fully static operation
■ Three state outputs
■ Data retention voltage : 1.5V (min.)
■ Package : 28-pin 600 mil PDIP
                    28-pin 330 mil SOP
                    28-pin 8x13.4mm STSOP