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1. Describe
This series of devices offers all the advantages of PIC18 microcontrollers-namely high computing power Get performance at an economical price. In addition to these features, PIC18F2585/2680/4585/4680 The series introduces design enhancements that make These microcontrollers are a logical choice for many people High-performance, power-sensitive applications. Main distinguishing features and specifications High temperature PIC18F2585/2680/4585/4680 Home equipment includes:
1. Above 125°C, flash memory does not allow writing Program memory
2. All AC timing specifications have been increased by 30% The derating factor includes parameters such as TPWRT
3. The maximum HS operating frequency is 20 MHz
2. High temperature characteristics
1. The ambient temperature range is -40°C to 150°C
3. Features of ECAN module
1. Message bit rate up to 1 Mbps
2. Comply with CAN 2.0B ACTIVE specification
3. Fully backward compatible with PIC18XXX8 CAN Module
4. Three operating modes:
- Traditional, enhanced traditional, first-in first-out
5. Three dedicated transmission buffers with priority
6. Two dedicated receive buffers
7. Six programmable receive/transmit buffers
8. Three complete 29-bit acceptance masks
9. 16 complete 29-bit acceptance filters with dynamic correlation
10. DeviceNet™ data byte filter support
11. Automatic remote frame processing
12. Advanced error management functions
4. Power management mode
1. Operation: CPU on, Peripherals on
2. Idle: CPU is off, peripherals are on
3. Sleep: CPU is off, peripherals are off
4. Two-speed oscillator start
5. Flexible oscillator structure
1. Four crystal modes, up to 40 MHz
2. 4x Phase Locked Loop (PLL)-can be used for crystals And internal oscillator
3. Two external RC modes, up to 4 MHz
4. Two external clock modes, up to 40 MHz
5. Internal oscillator module:
- 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 adjustable to compensate for frequency drift
6. Use Timer1 @ 32 kHz auxiliary oscillator
7. Fail-safe clock monitor
- If the peripheral clock is stopped, a safe shutdown is allowed
6. Special microcontroller features
1. With optional C compiler optimization architecture Extended instruction set
2. Interrupt priority
3. 8 x 8 single-cycle hardware multiplier
4. Extended Watchdog Timer (WDT):
- Programmable period from 41 ms to 131s
5. Single power supply 5V online serial Programming via two pins™ (ICSP™)
6. In-circuit debugging (ICD) through two pins
7. Surrounding highlights
1. High current sink/source 25 mA/25 mA
2. Three external interrupts
3. A capture/compare/PWM (CCP1) module
4. Enhanced Capture/Compare/PWM (ECCP1) module (40/44 pin devices only):
- One, two or four PWM outputs
- Optional polarity
- Programmable dead time
- Automatic shutdown and automatic restart
5. Master Synchronous Serial Port (MSSP) module Supports 3-Wire SPI (all 4 modes) and I2C™ master mode and slave mode
6. Enhanced addressable USART module:
- Support RS-485, RS-232 and LIN/J2602 support
- RS-232 operation using internal oscillator module (No external crystal required)
- Automatic wake-up at the start position
- Automatic baud rate detection (ABD)
7. 10-bit, up to 11-channel analog-to-digital converter Module (A/D), up to 100 ksps
- Automatic acquisition ability
- Conversions available during sleep
8. Dual analog comparators with input multiplexing function
