IC, 8BIT CMOS MCU, 16C55, DIP28; Controller Family/Series:PIC16C; Core Size:8bit; No. of I/O's:20; Program Memory Size:768 Byte; RAM Memory Size:24Byte; CPU Speed:4MHz; Oscillator Type:External; No. of Timers:1; Digital IC Case Style:DIP; Supply Voltage Range:3V to 5.5V; Operating Temperature Range:-40°C to +85°C; No. of Pins:28; SVHC:No SVHC (19-Dec-2011); Clock Frequency:4MHz; IC Generic Number:16C55; IC Temperature Range:Industrial; Logic Function Number:16C55A; Memory Size:0.75KB; Memory Type:OTP; Microprocessor/Controller Features:8-bit real time clock/counter, 20 I/O pins with 20mA source/25mA sink per I/O; No. of Bits:8; No. of I/O's:20; OTP Memory Size:6KB; Operating Temperature Max:85°C; Operating Temperature Min:-40°C; Package / Case:DIP; Program Memory Size:768Byte; Supply Voltage Max:5.5V; Supply Voltage Min:3V; Termination Type:Through Hole