18F258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:

• PIC18F2480

• PIC18F2580

• PIC18F4480

• PIC18F4580

This family of devices offers the advantages of all PIC18 microcontrollers – namely, high computational performance at an economical price – with the addition of high-endurance, Enhanced Flash program memory. In addition to these features, the PIC18F2480/2580/4480/4580 family introduces design enhancements that make these microcontrollers a logical choice for many high-performance, power sensitive applications.

Power Managed Modes:

• Run: CPU on, peripherals on

• Idle: CPU off, peripherals on

• Sleep: CPU off, peripherals off

• Idle mode currents down to 5.8 µA typical

• Sleep mode current down to 0.1 µA typical

• Timer1 Oscillator: 1.1 µA, 32 kHz, 2V

• Watchdog Timer: 2.1 µA

• Two-Speed Oscillator Start-up

Flexible Oscillator Structure:

• Four Crystal modes, up to 40 MHz

• 4X Phase Lock Loop (PLL) – available for crystal and internal oscillators)

• Two External RC modes, up to 4 MHz

• Two External Clock modes, up to 40 MHz

• Internal oscillator block:

- 8 user selectable frequencies, from 31 kHz to 8 MHz

- Provides a complete range of clock speeds, from 31 kHz to 32 MHz when used with PLL

- User tunable to compensate for frequency drift

• Secondary oscillator using Timer1 @ 32 kHz

• Fail-Safe Clock Monitor

- Allows for safe shutdown if peripheral clock stops

Special Microcontroller Features:

• C compiler optimized architecture with optional extended instruction set

• 100,000 erase/write cycle Enhanced Flash program memory typical

• 1,000,000 erase/write cycle Data EEPROM memory typical

• Flash/Data EEPROM Retention: > 40 years

• Self-programmable under software control

• Priority levels for interrupts

• 8 x 8 Single Cycle Hardware Multiplier

• Extended Watchdog Timer (WDT):

- Programmable period from 41 ms to 131s

• Single-Supply 5V In-Circuit Serial

Programming™ (ICSP™) via two pins

• In-Circuit Debug (ICD) via two pins

• Wide operating voltage range: 2.0V to 5.5V

Peripheral Highlights:

• High current sink/source 25 mA/25 mA

• Three external interrupts

• One Capture/Compare/PWM (CCP) module

• Enhanced Capture/Compare/PWM (ECCP) module (40/44-pin devices only):

- One, two or four PWM outputs

- Selectable polarity

- Programmable dead time

- Auto-Shutdown and Auto-Restart

• Master Synchronous Serial Port (MSSP) module supporting 3-wire SPI™ (all 4 modes) and I2C™ Master and Slave modes

• Enhanced Addressable USART module

- Supports RS-485, RS-232 and LIN 1.3

- RS-232 operation using internal oscillator block (no external crystal required)

- Auto-Wake-up on Start bit

- Auto-Baud detect

• 10-bit, up to 11-channel Analog-to-Digital Converter module (A/D), up to 100 Ksps

- Auto-acquisition capability

- Conversion available during Sleep

• Dual analog comparators with input multiplexing

ECAN Module Features:

• Message bit rates up to 1 Mbps

• Conforms to CAN 2.0B ACTIVE Specification

• Fully backward compatible with PIC18XXX8 CAN modules

• Three modes of operation:

- Legacy, Enhanced Legacy, FIFO

• Three dedicated transmit buffers with prioritization

• Two dedicated receive buffers

• Six programmable receive/transmit buffers

• Three full 29-bit acceptance masks

• 16 full 29-bit acceptance filters w/ dynamic association

• DeviceNet™ data byte filter support

• Automatic remote frame handling

• Advanced error management features