Industrial 27C256PLCC-1 PCB Circuit Board Module

Industrial 27C256PLCC-1 PCB Circuit Board Module is an EPROM module that houses a 256-kilobit (32K × 8) CMOS memory in a PLCC-32 package, designed for firmware storage on industrial PCBs. It uses parallel access with 15 address lines (A0–A14) and eight data lines (D0–D7) and typically operates from a 5 V supply; for programming, a higher VPP voltage is required (commonly around 12.75 V for legacy devices). This PLCC-32 package fits standard EPROM sockets or host-board footprints, making it a drop-in solution for firmware storage in industrial controllers and embedded equipment. The 27C256 device stores 256 kilobits of data (32K × 8) and is widely used in firmware storage across PLCs, CNC controllers, and other industrial electronics.