Catalog > Semiconductors > Integrated Circuits 80C51FA N IC 8 BIT MICROCONTROLLER PLCC (OTP) Part No: 80C51FA N 22.37 ZAR inc for 1 Each (Quoting) Add to Cart Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Family: MCS-51 / 8051 Family CPU Core: 80C51 (8051 Compatible) Architecture: 8-bit CMOS Microcontroller Maximum Clock Frequency: Up to 16 MHz (some later variants up to 33 MHz) Program Memory: 80C51FA: ROM-less version External program memory support up to 64 KB Data Memory: 256 Bytes Internal RAM Up to 64 KB External Data Memory I/O Ports: 32 Programmable I/O Lines Four 8-bit Ports (P0–P3) Timers/Counters: Three 16-bit Timers/Counters Timer 2 supports Up/Down counting Programmable Counter Array (PCA): High-Speed Output Compare Capture Functions Pulse Width Modulation (PWM) Watchdog Timer Capability Serial Interface: Full-Duplex UART Automatic Address Recognition Framing Error Detection Interrupt System: 7 Interrupt Sources 4 Priority Levels Supply Voltage: 2.7 V to 5.5 V (CMOS versions) Typical 5 V operation Power Management: Idle Mode Power-Down Mode Full Static Operation Package Type: N = PDIP (Plastic Dual In-Line Package) 40 Pins Operating Temperature: Commercial: 0°C to +70°C Automotive versions: -40°C to +125°C