This powerful (200 nanosecond instruction execution) yet easy-to-program (only 35 single word instructions) CMOS OTP-based 8-bit microcontroller packs Microchip's powerful PIC® architecture into an 20-pin package and is upwards compatible with the PIC16C5X and PIC12CXXX devices. The PIC16C771 features 6 channels of 12-bit Analog-to-Digital (A/D) converter giving designers the ability to discriminate smaller signal changes and eliminate the need for external circuitry for high precision measurement of analog signals. With 2 additional timers and an enhanced capture/compare/PWM function that make it ideal for the most sophisticated applications requiring higher levels of A/D in automotive, industrial, appliances and consumer applications.• High-performance RISC CPU • Only 35 single word instructions to learn • All single cycle instructions except for program branches which are two cycle • Operating speed: DC - 20 MHz clock input DC - 200 ns instruction cycle • Interrupt capability (up to 10 internal/external interrupt sources) • Eight level deep hardware stack • Direct, indirect and relative addressing modes • Power-on Reset (POR) • Power-up Timer (PWRT) and Oscillator Start-up Timer (OST) • Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation • Selectable oscillator options: - INTRC - Internal RC, dual speed (4 MHz and 37 kHz nominal) dynamically switchable for power savings - ER - External resistor, dual speed (user selectable frequency and 37 kHz nominal) dynamically switchable for power savings - EC - External clock - HS - High speed crystal/resonator - XT - Crystal/resonator - LP - Low power crystal • Low power, high speed CMOS EPROM technology • In-Circuit Seria