GENERAL DESCRIPTION
The AS27C256 series is a set of 262,144 bit, ultraviolet-light erasable, electrically programmable read-only memories. These devices are fabricated using power-saving CMOS technology for high speed and simple interface with MOS and bipolar circuits. All inputs (including program data inputs) can be

AVAILABLE AS MILITARY
SPECIFICATIONS
• -55C to 125C operation
• MILITARY Processing Method MIL-PRF-38535, Class Q
• Commercial Version Available

FEATURES
• Organized 32,768 x 8
• Single +5V ±10% power supply
• Pin-compatible with existing 256K ROM’s and EPROM’s
• All inputs/outputs fully TTL compatible
• Power-saving CMOS technology
• Very high-speed FLASHRITE Pulse Programming
• 3-state output buffers
• 400-mV DC assured noise immunity with standard TTL loads
• Latchup immunity of 250 mA on all input and output pins
• Low power dissipation (CMOS Input Levels)
-Active - 165mW Worst Case
-Standby - 1.7mW Worst Case (CMOS-input levels)
* FUTURE High Speed Offerings: 55ns, 70ns, 90ns