P4C198

P4C198/198L, P4C198A/198AL P4C198/P4C198L, P4C198A/P4C198AL ULTRA HIGH SPEED 16K x 4 STATIC CMOS RAMS 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 (Commercial/Military) – 715 mW Active – 12/15 – 550/660 mW Active – 20/25/35/45/55 – 193/220 mW Standby (TTL Input) – 83/110 mW Standby (CMOS Input) P4C198/198A – 9 mW Standby (CMOS Input) P4C198L/198AL (Military) 5V ± 10% Power Supply Data Retention, 10 µA Typical Current from 2.0V P4C198L/198AL (Military) Output Enable & Chip Enable Control Functions – Single Chip Enable P4C198 – Dual Chip Enable P4C198A Common Inputs and Outputs Fully TTL Compatible Inputs and Outputs Standard Pinout (JEDEC Approved) – 24-Pin 300 mil DIP – 24-Pin 300 mil SOJ (P4C198 only) – 28-Pin 350 x 550 mil LCC (P4C198 only) DESCRIPTION The P4C198/L and P4C198A/L are 65,536-bit ultra highspeed static RAMs organized as 16K x 4. Each device features an active low Output Enable control to eliminate data bus contention. The P4C198/L also have an active low Chip Enable (the P4C198A/L have two Chip Enables, both active low) for easy system expansion. The CMOS memories require no clocks or refreshing and have equal access and cycle times. Inputs are fully TTL-compatible. The RAMs operate from a single 5V ± 10% tolerance power supply. Data integrity is maintained with supply voltages down to 2.0V. Current drain is typically ...