PIC18F87J50中文资料微芯科技数据手册PDF规格书

DEVICE OVERVIEW

This document contains device-specific information for the following devices:

• PIC18F65J50 • PIC18F85J50

• PIC18F66J50 • PIC18F86J50

• PIC18F66J55 • PIC18F86J55

• PIC18F67J50 • PIC18F87J50

This family introduces a new line of low-voltage USB microcontrollers with the main traditional advantage of all PIC18 microcontrollers – namely, high computational performance and a rich feature set – at an extremely competitive price point. These features make the PIC18F87J50 family a logical choice for many high-performance applications, where cost is a primary consideration.

Universal Serial Bus Features:

• USB V2.0 Compliant SIE

• Low Speed (1.5 Mb/s) and Full Speed (12 Mb/s)

• Supports Control, Interrupt, Isochronous and Bulk Transfers

• Supports up to 32 Endpoints (16 bidirectional)

• 3.9-Kbyte Dual Access RAM for USB

• On-Chip USB Transceiver

Flexible Oscillator Structure:

• High-Precision PLL for USB

• Two External Clock modes, up to 48 MHz

• Internal 31 kHz Oscillator, Tunable Internal Oscillator, 31 kHz to 8 MHz

• Secondary Oscillator using Timer1 @ 32 kHz

• Fail-Safe Clock Monitor:

- Allows for safe shutdown if any clock stops

Peripheral Highlights:

• High-Current Sink/Source 25 mA/25mA (PORTB and PORTC)

• Four Programmable External Interrupts

• Four Input Change Interrupts

• Two Capture/Compare/PWM (CCP) modules

• Three Enhanced Capture/Compare/PWM (ECCP) modules:

- One, two or four PWM outputs

- Selectable polarity

- Programmable dead time

- Auto-shutdown and auto-restart

• Two Master Synchronous Serial Port (MSSP) modules supporting 3-Wire SPI (all 4 modes) and I2C™ Master and Slave modes

• 8-Bit Parallel Master Port/Enhanced Parallel Slave Port with 16 Address Lines

• Dual Analog Comparators with Input Multiplexing

• 10-Bit, up to 12-Channel Analog-to-Digital (A/D) Converter module:

- Auto-acquisition capability

- Conversion available during Sleep

• Two Enhanced USART modules:

- Supports RS-485, RS-232 and LIN 1.2

- Auto-wake-up on Start bit

- Auto-Baud Detect

External Memory Bus

(80-pin devices only):

• Address Capability of up to 2 Mbytes

• 8-Bit or 16-Bit Interface

• 12-Bit, 16-Bit and 20-Bit Addressing modes

Special Microcontroller Features:

• 5.5V Tolerant Inputs (digital-only pins)

• Low-Power, High-Speed CMOS Flash Technology

• C Compiler Optimized Architecture for Re-Entrant Code

• Power Management Features:

- Run: CPU on, peripherals on

- Idle: CPU off, peripherals on

- Sleep: CPU off, peripherals off

• Priority Levels for Interrupts

• Self-Programmable under Software Control

• 8 x 8 Single-Cycle Hardware Multiplier

• Extended Watchdog Timer (WDT):

- Programmable period from 4 ms to 131s

• Single-Supply In-Circuit Serial Programming™ (ICSP™) via Two Pins

• In-Circuit Debug (ICD) with 3 Breakpoints via Two Pins

• Operating Voltage Range of 2.0V to 3.6V

• On-Chip 2.5V Regulator

• Flash Program Memory of 10000 Erase/Write Cycles and 20-Year Data Retention