PIC18F2X中文资料微芯科技数据手册PDF规格书

描述 Description

PIC18F2x/4xQ10 microcontrollers feature Analog, Core Independent, and Communication Peripherals for

a wide range of general purpose and low-power applications. These 28/40/44 -pin devices are equipped

with a 10-bit ADC with Computation (ADC2) automating Capacitive Voltage Divider (CVD) techniques for

advanced touch sensing, averaging, filtering, oversampling and performing automatic threshold

comparisons. They also offer a set of Core Independent Peripherals such as Complementary Waveform

Generator (CWG), Windowed Watchdog Timer (WWDT), Cyclic Redundancy Check (CRC)/Memory

Scan, Zero-Cross Detect (ZCD), Configurable Logic Cell (CLC), and Peripheral Pin Select (PPS),

providing for increased design flexibility and lower system cost.

Core Features

• C Compiler Optimized RISC Architecture

• Operating Speed:

– DC – 64 MHz clock input over the full VDD range

– 62.5 ns minimum instruction cycle

• Programmable 2-Level Interrupt Priority

• 31-Level Deep Hardware Stack

• Three 8-Bit Timers (TMR2/4/6) with Hardware Limit Timer (HLT)

• Four 16-Bit Timers (TMR0/1/3/5)

• Low-Current Power-on Reset (POR)

• Power-up Timer (PWRT)

• Brown-out Reset (BOR)

• Low-Power BOR (LPBOR) Option

• Windowed Watchdog Timer (WWDT):

– Watchdog Reset on too long or too short interval between watchdog clear events

– Variable prescaler selection

– Variable window size selection

– All sources configurable in hardware or software