PIC18F2520-I/SP【PDF 32/151 页】IC MCU FLASH 16KX16 28-DIP

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Sheet目录3833

28页 29页 30页 31页 [32页]33页 34页 35页 36页

2008 Microchip Technology Inc.

DS39631E-page 1

PIC18F2420/2520/4420/4520

Power Management Features:

Run: CPU on, Peripherals on

Idle: CPU off, Peripherals on

Sleep: CPU off, Peripherals off

Ultra Low 50nA Input Leakage

Run mode Currents Down to 11

μA Typical

Idle mode Currents Down to 2.5

μA Typical

Sleep mode Current Down to 100 nA Typical

Timer1 Oscillator: 900 nA, 32 kHz, 2V

Watchdog Timer: 1.4

μA, 2V Typical

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:

- Fast wake from Sleep and Idle, 1

μs typical

- 8 use-selectable frequencies, from 31 kHz to

8MHz

- 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

Peripheral Highlights:

High-Current Sink/Source 25 mA/25 mA

Three Programmable External Interrupts

Four Input Change Interrupts

Up to 2 Capture/Compare/PWM (CCP) modules,

one with Auto-Shutdown (28-pin devices)

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

Peripheral Highlights (Continued):

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/J2602

- RS-232 operation using internal oscillator

block (no external crystal required)

- Auto-wake-up on Start bit

- Auto-Baud Detect

10-Bit, up to 13-Channel Analog-to-Digital (A/D)

Converter module:

- Auto-acquisition capability

- Conversion available during Sleep

Dual Analog Comparators with Input Multiplexing

Programmable 16-Level High/Low-Voltage

Detection (HLVD) module:

- Supports interrupt on High/Low-Voltage Detection

Special Microcontroller Features:

C Compiler Optimized Architecture:

- Optional extended instruction set designed to

optimize re-entrant code

100,000 Erase/Write Cycle Enhanced Flash

Program Memory Typical

1,000,000 Erase/Write Cycle Data EEPROM

Memory Typical

Flash/Data EEPROM Retention: 100 Years Typical

Self-Programmable under Software Control

Priority Levels for Interrupts

8 x 8 Single-Cycle Hardware Multiplier

Extended Watchdog Timer (WDT):

- Programmable period from 4 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

Programmable Brown-out Reset (BOR) with

Software Enable Option

Device

Program Memory

Data Memory

I/O

10-Bit

A/D (ch)

CCP/

ECCP

(PWM)

MSSP

Comp.

Timers

8/16-Bit

Flash

(bytes)

# Single-Word

Instructions

SRAM

(bytes)

EEPROM

(bytes)

SPI

Master

I2C

PIC18F2420

16K

8192

768

256

2/0

1/3

PIC18F2520

32K

16384

1536

256

2/0

1/3

PIC18F4420

16K

8192

768

256

1/1

1/3

PIC18F4520

32K

16384

1536

256

1/1

1/3

28/40/44-Pin Enhanced Flash Microcontrollers with

10-Bit A/D and nanoWatt Technology

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