P4C188

P4C188

P4C188

Pyramid Semiconductor

64K (16Kx4) CMOS SRAM with common I/O

The P4C188 and P4C188L are 65,536-bit ultra high speed static RAMs organised as 16K x 4. The CMOS memories require no clocks or refreshing and have equal access and cycle times. Inputs and outputs are fully TTL-compatible. The RAMs operate 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 10µA from a 2.0V supply.

Access times as fast as 10 nanoseconds are available, permitting greatly enhanced system speeds. CMOS is utilised to reduce power consumption to a low 715mW active, 193mW standby and only 5mW in the P4C188L version.

The P4C188 and P4C188L are available in 22-pin 300 mil DIP, 24-pin 300 mil SOJ and 22-pin LCC 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)
    • 10/12/15/20/25 ns (commercial)
    • 12/15/20/25/35 ns (industrial)
    • 15/20/25/35/45 ns (military)

  • Low power operation
    • 715 mW active - 12/15
    • 550/660 mW active - 20/25/35/45
    • 193/220 mW standby (TTL input)
    • 83/110 mW standby (CMOS input) P4C188
    • 15 mW Standby (CMOS input)
    • (P4C188L military)

  • Single 5V ±10% power supply
  • Data retention with 2.0V supply (P4C188L)
  • Three state outputs
  • TTL/CMOS compatible outputs
  • Fully TTL compatible inputs
  • Standard pinout (JEDEC approved)
    • 22 pin 300 mil DIP
    • 24 pin 300 mil SOJ
    • 22 pin 290 x 490 mil LCC
Standard Military Drawing Number(s)
  • SMD 5962-86859
  • SMD 5962-89692
TAA (ns) 15/20/25/35/45
DIP 22
LCC 22
Qualified To MIL-STD-883
Size 64K
More Information
Attribute Value
Data Sheet Click here to view

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