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PIC18F2682 Datasheet, PDF (3/484 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology | |||
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PIC18F2682/2685/4682/4685
28/40/44-Pin Enhanced Flash Microcontrollers with
ECAN⢠Technology, 10-Bit A/D and nanoWatt Technology
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, 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) â 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⢠(ICSPâ¢) 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 (CCP1) module
⢠Enhanced Capture/Compare/PWM (ECCP1) 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 I2Câ¢
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
Device
Program Memory
Data Memory
Flash # Single-Word SRAM EEPROM I/O
(bytes) Instructions (bytes) (bytes)
10-Bit
A/D (ch)
CCP1/
ECCP1
(PWM)
MSSP
SPI
Master
I2Câ¢
PIC18F2682 80K
40960
3328 1024 28
8
1/0
Y
Y
1
PIC18F2685 96K
49152
3328 1024 28
8
1/0
Y
Y
1
PIC18F4682 80K
40960
3328 1024 40/44 11
1/1
Y
Y
1
PIC18F4685 96K
49152
3328 1024 40/44 11
1/1
Y
Y
1
Comp.
Timers
8/16-bit
0
1/3
0
1/3
2
1/3
2
1/3
© 2007 Microchip Technology Inc.
Preliminary
DS39761B-page 1
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