Cale:OKDatasheet > Semiconductor Date > Microchip Datasheet > PIC16C56-RC/SS
PIC16C56-RC/SS spec.: "Bits number of 20 Memory configuration 1024x12 Memory type OTP Frequency clock 4 MHz Memory size 1Kb 8-bit CMOS MCU, 1Kb OTP PROM, 25b RAM, 12 I/O lines - 4MHz (RC OSC, SSOP)"