Description: The M27C322-50F1 is a 32 Megabit CMOS EPROM manufactured by STMicroelectronics. It is a 42-pin dual-in-line package (DIP) with an access time of 70 ns. Features: - 32 Megabit (4 MByte) of memory - 70 ns access time - Low power consumption - High speed CMOS technology - Fully static operation - Single {+}5V power supply - TTL compatible inputs and outputs - JEDEC standard pinout - Endurance: 100,000 cycles - Data retention: 100 years Applications: - Automotive - Industrial - Telecommunications - Consumer electronics - Computer peripherals - Networking(For reference only)
https://www.utsource.net/itm/p/427661.html