Datasheet for the Microchip PIC16LC74B, a compact 615 KB PDF. The LC prefix indicates the low-voltage version of the PIC16C74B, with an extended supply range suited to battery-powered equipment, and the C means one-time programmable or EPROM program memory. A technician uses the pin diagram and electrical tables to verify supply, clock and reset lines on a faulty board. Because OTP parts cannot be erased, a replacement chip must be programmed with the original firmware, which is not part of this document.
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