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GENERAL DESCRIPTIONThe PIC12F508/509/16F505 devices from Microchip Technology are low-cost, high-performance, 8-bit, fully-static, Flash-based CMOS microcontrollers. They employ a RISC architecture with only 33 single-word/ single-cycle instructions. All instructions are single cycle (200 μs) except for program branches, which take two cycles. The PIC12F508/509/16F505 devices deliver performance an order of magnitude higher than their competitors in the same price category. The 12-bit wide instructions are highly symmetrical, resulting in a typical 2:1 code compression over other 8-bit microcontrollers in its class. The easy to use and easy to remember instruction set reduces development time significantly. High-Performance RISC CPU:• Only 33 Single-Word Instructions to Learn• All Single-Cycle Instructions Except for Program Branches, which are Two-Cycle• 12-Bit Wide Instructions• 2-Level Deep Hardware Stack• Direct, Indirect and Relative Addressing modes for Data and Instructions• 8-Bit Wide Data Path• 8 Special Function Hardware Registers• Operating Speed: - DC – 20 MHz clock input (PIC16F505 only) - DC – 200 ns instruction cycle (PIC16F505 only) - DC – 4 MHz clock input - DC – 1000 ns instruction cycle Special Microcontroller Features:• 4 MHz Precision Internal Oscillator: - Factory calibrated to ±1%• In-Circuit Serial Programming™ (ICSP™)• In-Circuit Debugging (ICD) Support• Power-On Reset (POR)• Device Reset Timer (DRT)• Watchdog Timer (WDT) with Dedicated On-Chip RC Oscillator for Reliable Operation• Programmable Code Protection• Multiplexed MCLR Input Pin• Internal Weak Pull-Ups on I/O Pins• Power-Saving Sleep mode• Wake-Wp from Sleep on Pin Change• Selectable Oscillator Options: - INTRC: 4 MHz precision Internal oscillator - EXTRC: External low-cost RC oscillator - XT: Standard crystal/resonator - HS: High-speed crystal/resonator (PIC16F505 only) - LP: Power-saving, low-frequency crystal - EC: High-speed external clock input (PIC16F505 only) (Continue ...)
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