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PIC18F445 PDF预览

PIC18F445

更新时间： 2024-11-09 23:06:03
品牌 Logo 应用领域
美国微芯 - MICROCHIP 闪存微控制器
页数 文件大小 规格书
6页 97K
描述
28/40/44-Pin High-Performance, Enhanced Flash USB Microcontrollers with nanoWatt Technology

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中文翻译

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PIC18F445 数据手册

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PIC18F2455/2550/4455/4550  
28/40/44-Pin High-Performance, Enhanced Flash USB  
Microcontrollers with nanoWatt Technology  
Universal Serial Bus Features:  
Peripheral Highlights:  
• USB V2.0 Compliant SIE  
• High current sink/source: 25 mA/25 mA  
• Three external interrupts  
• 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-board 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)  
• Four Timer modules (Timer0 to Timer3)  
• Up to 2 Capture/Compare/PWM (CCP) modules:  
- Capture is 16-bit, max. resolution 6.25 ns (TCY/16)  
- Compare is 16-bit, max. resolution 100 ns (TCY)  
- PWM output: PWM resolution is 1 to 10-bit  
• Enhanced Capture/Compare/PWM (ECCP) module:  
- Multiple output modes  
- Selectable polarity  
- Programmable dead-time  
- Auto-Shutdown and Auto-Restart  
• Addressable USART module:  
- LIN bus support  
• Master Synchronous Serial Port (MSSP) module  
supporting 3-wire SPI™ (all 4 modes) and I2C™  
Master and Slave modes  
• 10-bit, up to 13-channels Analog-to-Digital Converter  
module (A/D) with programmable acquisition time  
• Dual analog comparators with input multiplexing  
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 current 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  
Flexible Oscillator Structure:  
• Five Crystal modes, including High-Precision PLL  
for USB  
• 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  
- User tunable to compensate for frequency drift  
• Secondary oscillator using Timer1 @ 32 kHz  
• Fail-Safe Clock Monitor  
- Allows for safe shutdown if any clock stops  
• In-Circuit Debug (ICD) via two pins  
• Wide operating voltage range (2.0V to 5.5V)  
Program Memory  
Data Memory  
MSSP  
10-bit CCP/  
A/D ECCP SPP  
(ch) (PWM)  
Timers  
8/16-bit  
# Single-  
FLASH  
Device  
I/O  
SRAM EEPROM  
(bytes) (bytes)  
Master  
I C  
Word  
SPI  
2
(bytes)  
Instructions  
PIC18F2455  
PIC18F2550  
PIC18F4455  
PIC18F4550  
24K  
32K  
24K  
32K  
12288  
16384  
12288  
16384  
2048  
2048  
2048  
2048  
256  
256  
256  
256  
24  
24  
35  
35  
10  
10  
13  
13  
2/0  
2/0  
1/1  
1/1  
No  
No  
Y
Y
Y
Y
Y
Y
Y
Y
1
1
1
1
2
2
2
2
1/3  
1/3  
1/3  
1/3  
Yes  
Yes  
2003 Microchip Technology Inc.  
Advance Information  
DS39617A-page 1  
123456

中文翻译

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