DESCRIPTION
The P4C189 is a 64-bit high-speed Static RAM with a 16 x 4 organization. The memory requires no clocks or refreshing and has equal access and cycle times. Inputs and outputs are fully TTL compatible. Operation is from a single 5 Volt supply. The output data is the complement of the written data.
The P4C189 is offered in a 16-Pin DIP package. Devices are offered in both commercial and industrial temperature ranges.

FEATURES
■ 16 x 4 Static RAM
■ Fast Access Time – 35 ns Commercial and Industrial
■ Available in the following packages:
    – 16-Pin PDIP
■ Inverted Outputs
■ 5V Power Supply ±10% for both commercial and industrial temperature ranges.
■ Separate I/O
■ Fully static operation with equal access and cycle times
■ 3-STATE outputs for data bus applications