PIC18F2458-E/PT中文資料微芯科技數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

DEVICE OVERVIEW

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

? PIC18F2458 ? PIC18F4458

? PIC18F2553 ? PIC18F4553

The PIC18F4553 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 PIC18F4553 family introduces design enhancements that make these microcontrollers a logical choice for many high-performance, power sensitive applications.

Universal Serial Bus Features:

? USB V2.0 Compliant

? 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)

? 1-Kbyte Dual Access RAM for USB

? On-Chip USB Transceiver with On-Chip Voltage Regulator

? Interface for Off-Chip USB Transceiver

? Streaming Parallel Port (SPP) for USB Streaming Transfers (40/44-pin devices only)

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 Currents Down to 0.1 μA Typical

? Timer1 Oscillator: 1.1 μA Typical, 32 kHz, 2V

? Watchdog Timer: 2.1 μA Typical

? Two-Speed Oscillator Start-up

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

? Programmable Code Protection

? Single-Supply 5V In-Circuit Serial Programming? (ICSP?) via Two Pins

? In-Circuit Debug (ICD) via Two Pins

? Optional Dedicated ICD/ICSP Port (44-pin TQFP package only)

? Wide Operating Voltage Range (2.0V to 5.5V)

Flexible Oscillator Structure:

? Four Crystal modes, Including High-Precision PLL for USB

? Two External Clock modes, up to 48 MHz

? Internal Oscillator Block:

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

- User-tunable to compensate for frequency drift

? Secondary Oscillator using Timer1 @ 32 kHz

? Dual Oscillator Options allow Microcontroller and USB module to Run at Different Clock Speeds

? Fail-Safe Clock Monitor:

- Allows for safe shutdown if any clock stops

Peripheral Highlights:

? High-Current Sink/Source: 25 mA/25 mA

? Three External Interrupts

? Four Timer modules (Timer0 to Timer3)

? Up to 2 Capture/Compare/PWM (CCP) modules:

- Capture is 16-bit, max. resolution 5.2 ns (TCY/16)

- Compare is 16-bit, max. resolution 83.3 ns (TCY)

- PWM output: PWM resolution is 1 to 10-bits

? Enhanced Capture/Compare/PWM (ECCP) module:

- Multiple output modes

- Selectable polarity

- Programmable dead time

- Auto-shutdown and auto-restart

? Enhanced USART module:

- LIN bus support

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

? 12-Bit, up to 13-Channel Analog-to-Digital Converter module (A/D) with Programmable Acquisition Time

? Dual Analog Comparators with Input Multiplexing