P4C1258

P4C1258

P4C1258

Pyramid Semiconductor

256K (64Kx4) CMOS SRAM with common I/O and CE

The P4C1258 is a 262,144-bit ultra high speed static RAM organised as 64K x 4. The CMOS memory requires no clock or refreshing and has equal access and cycle times. Inputs and outputs are fully TTL-compatible. The RAM operates from a single 5V±10% tolerance power supply. With battery backup, data integrity is maintained for supply voltages down to 2.0V. Current drain is typically 10 µA from a 2.0V supply.

Access times as fast as 15 nanoseconds are available, permitting greatly enhanced system speeds. CMOS is utilised to reduce power consumption.

The P4C1258 is available in a 24-pin 300 mil DIP or SOJ packages providing excellent board level densities.

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More Information
Attribute Value
Key Features
  • Full CMOS, 6T Cell
  • High speed (equal access and cycle times)
    • 15/20/25/35 ns (commercial/industrial)

  • Low power
  • Single 5V ±10% power supply
  • Data retention with 2.0V supply
  • Three state outputs
  • TTL/CMOS compatible outputs
  • Fully TTL compatible inputs
  • Standard pinout (JEDEC approved)
    • 24 pin 300 mil DIP, SOJ
Standard Military Drawing Number(s) SMD 5962-88681
TAA (ns) 15/20/25/35
DIP 24
LCC 28
FP 28
SOJ 24
Qualified To MIL-STD-883
Size 256K
More Information
Attribute Value
Data Sheet Click here to view

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