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PIC18F2X1X Datasheet, PDF (3/380 Pages) Microchip Technology – 28/40/44-PIN FLASH MICROCONTROLLERS WITH 10-BIT A/D AND NANO WATT TECHNOLOGY | |||
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PIC18F2X1X/4X1X
28/40/44-Pin Flash Microcontrollers with
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 3.0 µA typical
⢠Sleep mode currents down to 20 nA typical
⢠Timer1 Oscillator: 1.8 µA, 32 kHz, 2V
⢠Watchdog Timer: 2.1 µA
⢠Two-Speed Oscillator Start-up
Peripheral Highlights:
⢠High-current sink/source 25 mA/25 mA
⢠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
⢠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 1.2
- 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
Converter module (A/D):
- 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
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:
- Optional extended instruction set designed to
optimize re-entrant code
⢠100,000 erase/write cycle Flash program memory
typical
⢠Three programmable external interrupts
⢠Four input-change interrupts
⢠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⢠(ICSPâ¢) 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
 2004 Microchip Technology Inc.
Preliminary
DS39636A-page 1
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