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