DESCRIPTION
The P4C188 and P4C188L are 65,536-bit ultra high speed static RAMs organized as 16K x 4. The CMOS memories require no clocks or refreshing and have equal access and cycle times. Inputs and outputs are fully TTL-compatible. The RAMs operate from a single 5V±10% tolerance power supply. With battery backup, data integrity is maintained for supply voltages down to 2.0V. Current drain is typically 10 µA from a 2.0V supply.

FEATURES
■ Full CMOS, 6T Cell
■ High Speed (Equal Access and Cycle Times)
    – 10/12/15/20/25 ns (Commercial)
    – 12/15/20/25/35 (Industrial)
    – 15/20/25/35/45 ns (Military)
■ Low Power (Commercial/Military)
    – 715 mW Active – 12/15
    – 550/660 mW Active – 20/25/35/45
    – 193/220 mW Standby (TTL Input)
    – 83/110 mW Standby (CMOS Input) P4C188
    – 15 mW Standby (CMOS Input) (P4C188L Military)
■ Single 5V±10% Power Supply
■ Data Retention with 2.0V Supply (P4C188L Military)
■ Three-State Outputs
■ TTL/CMOS Compatible Outputs
■ Fully TTL Compatible Inputs
■ Standard Pinout (JEDEC Approved)
    – 22-Pin 300 mil DIP
    – 24-Pin 300 mil SOJ
    – 22-Pin 290 x 490 mil LCC