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P4C1257 - STATIC CMOS RAM

General 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 ± 10% tolerance power supply.

Key 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 m.

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Datasheet Details

Part number P4C1257
Manufacturer PYRAMID
File Size 758.15 KB
Description STATIC CMOS RAM
Datasheet download datasheet P4C1257 Datasheet

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P4C1257L STATIC CMOS RAM
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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 ± 10% tolerance power supply. Data integrity is maintained for supply voltages down to 2.