UM2147

SUMO UM2147 High Speed NMOS SRAM Features 45 ns maximum access time No clocks or strobes required Automatic CE power down Identical cycle and access times Single +5V supply (± 10%) Pinout and function compatible to SY2147 Total TTL compatible: All inputs and outputs Separate data input and output High density 18-pin package Three-state output General Description The UMC UM2147 is a 4096-Bit Static Random Access Memory organized 4096 words by 1-bit and is fabricated using UMC's new scaled N-channel silicon gate technology. It is designed using fully static circuitry, therefore requiring no clock or refreshing to operate. Address set-up times are not required and the data is read out non-destructively with the same polarity as the input data. Separate data input and output pins provide maximum design flexibility. The three-state output facilitates memory expansion by allowing the outputs to be OR-tied to other devices. The UM2147 offers an au...