AT27C256R EPROM

The Microchip AT27C256R is a low-power, high-performance 256-Kbit One Time Programmable EPROM organized as 32-Kbit x 8. Requiring a single 5V power supply, in normal read mode operation typical power consumption is only 8 mA in active mode and less than 10 ?A in standby mode. Any byte can be accessed in less than 45 ns, eliminating the need for speed reducing WAIT states on high-performance microprocessor systems.

• • • 256-Kbit (32-Kbit x 8)
    • Low-power CMOS operation
  • • • Standard power supply range, 5V +/-10%
      • 100 ?A max standby
      • ?20mA max active at 5 MHz
    • Parallel Interface
      • 45 ns access time
    • High-reliability CMOS technology
      • 2,000V ESD protection
      • 200 mA latchup immunity
    • Rapid programming algorithm ? 100 ?s/byte (typical)
    • CMOS and TTL compatible inputs and outputs
    • Integrated product identification code
    • Industrial Temperature Range: -40?C to 85?C
    • Available in Green (Pb/Halide-free) Packaging Only
      • 32-lead, Plastic J-leaded Chip Carrier (PLCC)

28-lead, 0.600″ wide, plastic, dual inline package (PDIP)