64K-bit UV EPROM memory IC, organized as 8K x 8, featuring a 90ns maximum access time. This through-hole component utilizes a parallel interface and is housed in a 24-pin windowed ceramic dual in-line package (CDIP). Operating from a 4.5V to 5.5V supply, it offers in-system programmability and a maximum operating current of 90mA. The ceramic package measures 32.5mm (Max) in length, 7.87mm (Max) in width, and 3.56mm (Max) in height, with a pin pitch of 2.79mm (Max). Designed for operation between -40°C and 85°C.
Microchip AT27HC642-90DI technical specifications.
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