AT27C020-90TI [Microchip]

The AT27C020 is a 2,097,152-bit (256K x 8) OTP EPROM requiring only one 5V power supply for normal read operation. It features fast 55 ns access time, low-power CMOS operation (100 µA max standby, 25 mA max active at 5 MHz), and is available in JEDEC-standard 32-lead packages (PDIP, PLCC, TSOP). The device includes high-reliability CMOS technology with 2000V ESD protection and 200 mA latch-up immunity. It supports rapid programming at 100 µs/byte typical, has CMOS/TTL-compatible I/O, integrated product identification code, and operates across commercial, industrial, and automotive temperature ranges.