Functional Description
The CY7C266 is a high-performance 8192-word by 8-bit CMOS PROM. When deselected, the CY7C266 automatically powers down into a low-power standby mode. It is packaged in a 600-mil-wide package. The reprogrammable packages are equipped with an erasure window; when exposed to UV light, these PROMs are erased and can then be reprogrammed. The memory cells utilize proven EPROM floating-gate technology and byte-wide intelligent programming algorithms.

Features
• CMOS for optimum speed/power
• Windowed for reprogrammability
• High speed
   — 20 ns (Commercial)
• Low power
   — 660 mW (Commercial)
• Super low standby power
   — Less than 85 mW when deselected
• EPROM technology 100% programmable
• 5V ±10% VCC, commercial and military
• TTL-compatible I/O
• Direct replacement for 27C64 EPROMs