P4C422

P4C422

P4C422

Pyramid Semiconductor

1K (256x4) CMOS SRAM

The P4C422 is a 1,024-bit high-speed (10ns) Static RAM with a 256 x 4 organisation. The memory requires no clocks or refreshing and has equal access and cycle times. Inputs and outputs are fully TTL compatible. Operation is from a single 5 Volt supply. Easy memory expansion is provided by an active LOW chip select one (CS1 ) and active HIGH chip select two (CS2) as well as 3-state outputs.

In addition to high performance and high density, the device features latch-up protection, single event and upset protection.

The P4C422 is offered in several packages:

  • 22-pin 400 mil DIP (plastic and ceramic)
  • 24-pin 300 mil SOIC
  • 24-pin square LCC
  • 24-pin CERPACK

Devices are offered in both commercial and military temperature ranges.

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More Information
Attribute Value
Key Features
  • High speed (equal access and cycle times):
    • 10/12/15/20/25/35 ns (commercial)
    • 15/20/25/35 ns (military)

  • CMOS for low power:
    • 495 mW Max. – 10/12/15/20/25 (commercial)
    • 495 mW Max. – 15/20/25/35 (military)

  • Single 5V±10% power supply
  • Separate I/O
  • Fully TTL compatible inputs and outputs
  • Resistant to single event upset and latchup resulting from advanced process and design improvements
  • Standard Pinout (JEDEC approved):
    • 22-Pin 400 mil DIP
    • 24-Pin 300 mil SOIC
    • 24-Pin square LCC
    • 24-Pin CERPACK
Standard Military Drawing Number(s) SMD 5962-88594
TAA (ns) 15/20/25/35
DIP 22
LCC 24
Qualified To MIL-STD-883
Size 1K
More Information
Attribute Value
Data Sheet Click here to view

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