PIC18F1XK22 Datasheet, PDF (10/388 Pages) Microchip Technology – 20-Pin Flash Microcontrollers with nanoWatt XLP Technology

PIC18F1XK22/LF1XK22
1.2 Other Special Features
• Memory Endurance: The Flash cells for both
program memory and data EEPROM are rated to
last for many thousands of erase/write cycles – up to
10K for program memory and 100K for EEPROM.
Data retention without refresh is conservatively
estimated to be greater than 40 years.
• Self-programmability: These devices can write
to their own program memory spaces under
internal software control. Using a bootloader
routine located in the code protected Boot Block,
it is possible to create an application that can
update itself in the field.
• Extended Instruction Set: The
PIC18F1XK22/LF1XK22 family introduces an
optional extension to the PIC18 instruction set,
which adds 8 new instructions and an Indexed
Addressing mode. This extension has been spe-
cifically designed to optimize re-entrant applica-
tion code originally developed in high-level
languages, such as C.
• Enhanced CCP module: In PWM mode, this
module provides 1, 2 or 4 modulated outputs for
controlling half-bridge and full-bridge drivers.
Other features include:
- Auto-Shutdown, for disabling PWM outputs
on interrupt or other select conditions
- Auto-Restart, to reactivate outputs once the
condition has cleared
- Output steering to selectively enable one or
more of 4 outputs to provide the PWM signal.
• Enhanced Addressable USART: This serial
communication module is capable of standard
RS-232 operation and provides support for the LIN
bus protocol. Other enhancements include
automatic baud rate detection and a 16-bit Baud
Rate Generator for improved resolution.
• 10-bit A/D Converter: This module incorporates
programmable acquisition time, allowing for a
channel to be selected and a conversion to be
initiated without waiting for a sampling period and
thus, reduce code overhead.
• Extended Watchdog Timer (WDT): This
enhanced version incorporates a 16-bit
postscaler, allowing an extended time-out range
that is stable across operating voltage and
temperature. See Section 25.0 “Electrical
Specifications” for time-out periods.
1.3 Details on Individual Family
Members
Devices in the PIC18F1XK22/LF1XK22 family are
available in 20-pin packages. Block diagrams for the
two groups are shown in Figure 1-1.
The devices are differentiated from each other in the
following ways:
1. Flash program memory:
• 8 Kbytes for PIC18F13K22/LF13K22
• 16 Kbytes for PIC18F14K22/LF14K22
All other features for devices in this family are identical.
These are summarized in Table 1-1.
The pinouts for all devices are listed in Table 1-1 and
I/O description are in Table 1-2.
DS41365D-page 10
Preliminary
 2010 Microchip Technology Inc.