PIC18F2331 Datasheet, PDF (3/396 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
28/40/44-Pin Enhanced Flash Microcontrollers with
nanoWatt Technology, High Performance PWM and A/D
14-bit Power Control PWM Module:
• Up to 4 channels with complementary outputs
• Edge- or center-aligned operation
• Flexible dead-band generator
• Hardware fault protection inputs
• Simultaneous update of duty cycle and period:
- Flexible special event trigger output
Motion Feedback Module:
• Three independent input capture channels:
- Flexible operating modes for period and pulse
width measurement
- Special Hall Sensor interface module
- Special event trigger output to other modules
• Quadrature Encoder Interface:
- 2 phase inputs and one index input from encoder
- High and low position tracking with direction
status and change of direction interrupt
- Velocity measurement
High-Speed, 200 Ksps 10-bit A/D Converter:
• Up to 9 channels
• Simultaneous two-channel sampling
• Sequential sampling: 1, 2 or 4 selected channels
• Auto-conversion capability
• 4-word FIFO with selectable interrupt frequency
• Selectable external conversion triggers
• Programmable acquisition time
Flexible Oscillator Structure:
• Four crystal modes up to 40 MHz
• Two external clock modes up to 40 MHz
• Internal oscillator block:
- 8 user selectable frequencies: 31 kHz to 8 MHz
- OSCTUNE can compensate for frequency drift
• Secondary oscillator using Timer1 @ 32 kHz
• Fail-Safe Clock Monitor:
- Allows for safe shutdown of device if clock fails
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, 1.8 µA typical, 32 kHz, 2V
• Watchdog Timer (WDT), 2.1 µA typical
• Two-Speed oscillator start-up
Peripheral Highlights:
• High current sink/source 25 mA/25 mA
• Three external interrupts
• Two 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 bits
• Enhanced USART module:
- Supports RS-485, RS-232 and LIN 1.2
- Auto-Wake-up on Start bit
- Auto-Baud detect
• RS-232 operation using internal oscillator block
(no external crystal required)
Special Microcontroller Features:
• 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
• 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 In-Circuit Serial Programming™
(ICSP™) via two pins
• In-Circuit Debug (ICD) via two pins
- Drives PWM outputs safely when debugging
Device
Program Memory
Data Memory
Flash # Single-Word SRAM EEPROM ^I/O
(bytes) Instructions (bytes) (bytes)
10-bit
A/D
(ch)
CCP
SSP
SPI
Slave
I²C™
EUSART
14-bit
PWM
(ch)
Timers
8/16-bit
PIC18F2331 8192
PIC18F2431 16384
PIC18F4331 8192
PIC18F4431 16384
4096
8192
4096
8192
768
256 24 5
2Y Y
768
256 24 5
2Y Y
768
256 36 9
2Y Y
768
256 36 9
2Y Y
Y
Y
6
1/3
Y
Y
6
1/3
Y
Y
8
1/3
Y
Y
8
1/3
 2003 Microchip Technology Inc.
Preliminary
DS39616B-page 1