DESCRIPTION
The P4C187/L are 65, 536-bit ultra high speed static RAMs organized as 64K x 1. The CMOS memories require no clocks or refreshing and have equal access and cycle times. The RAMs operate from a single 5V ± 10% tolerance power supply. Data integrity is maintained for supply voltages down to 2.0V, typically drawing 10µA.

FEATURES
■ Full CMOS, 6T Cell
■ High Speed (Equal Access and Cycle Times)
   – 10/12/15/20/25 ns (Commercial)
   – 12/15/20/25/35 ns (Industrial)
   – 15/20/25/35/45 ns (Military)
■ Low Power Operation
   – 743 mW Active -10
   – 660/770 mW Active for -12/15
   – 550/660 mW Active for -20/25/35
   – 193/220 mW Standby (TTL Input)
   – 83/110 mW Standby (CMOS Input) P4C187
   – 5.5 mW Standby (CMOS Input) P4C187L (Military)
■ Single 5V±10% Power Supply
■ Data Retention with 2.0V Supply (P4C187L Military)
■ Separate Data I/O
■ Three-State Output
■ TTL Compatible Output
■ Fully TTL Compatible Inputs
■ Standard Pinout (JEDEC Approved)
   – 22-Pin 300 mil DIP
   – 24-Pin 300 mil SOJ
   – 22-Pin 290x490 mil LCC