P93U422

P93U422

P93U422

Pyramid Semiconductor

1K (256x4) CMOS SRAM

The P93U422 is a 1,024-bit high-speed Static RAM with a 256 x 4 organisation. The P93U422 is a universal device designed to replace the entire 93 and 93L 256 x 4 static RAM families. 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, the device features latch-up protection, single event and upset protection. The P93U422 is offered in several packages: 22-pin 400 mil DIP (plastic and ceramic), 24-pin 300 mil SOIC, 24-pin square LCC and 24-pin CERPACK.

Devices are offered in both commercial and military temperature ranges.

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Attribute Value
Key Features
  • Universal 256 x 4 Static RAM
  • One part, the P93U422, replaces the following bipolar and CMOS parts:
    • 93422, 93422A
    • 93L422, 93L422A

  • Fast access time – 35 ns commercial and military
  • Available in the following packages:
    • PDIP, CERDIP, side brazed DIP
    • CERPACK
    • LCC
    • SOIC

  • CMOS for low power
    • 440 mW (commercial)
    • 495 mW (military)

  • 5V power supply ±10% for both commercial and military temperature ranges
  • Separate I/O
  • Fully static operation with equal access and cycle times
  • Resistant to single event upset and latchup due to advanced process and design improvements
Standard Military Drawing Number(s) SMD 5962-88594
Qualified To MIL-STD-883
TAA (ns) 35
DIP 22
LCC 24
Size 1K
More Information
Attribute Value
Data Sheet Click here to view

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