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 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
■ Fast 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
■ Operating temperature :
    Commercial temperature : 0℃~70℃
    Extended temperature : -20℃~85℃
■ 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