FEATURES
Full
CMOS
High Speed (Equal Access and Cycle Times) – 12/15/20/25 ns (Commercial) – 12/15/20/25 ns (Industrial) – 25/35/45/55/70 ns (Military)
Single 5V±10% Power Supply
Data Retention with 2.
0V Power Supply (P4C1257L)
P4C1257/P4C1257L
ULTRA HIGH SPEED 256K x 1 STATIC
CMOS RAMS
Separate Data I/O Three-State Output
Fully TTL Compatible Inputs and Outputs Standard Pinout (JEDEC Approved) – 24-Pin 300 mil DIP, SOJ – 28-Pin 350x550 mil LCC – 28-Pin Flatpack
DESCRIPTION
The P4C1257/P4C1257L are 256Kx1-bit ultra high-speed static RAMs.
The
CMOS memories require no clocks or refreshing and have equal access and cycle times.
The RAMs operate from a single 5V ± ...