Datasheet

 2009-2016 Microchip Technology Inc. DS40001365F-page 7
PIC18(L)F1XK22
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 PIC18(L)F1XK22
family introduces an optional extension to the
PIC18 instruction set, which adds eight new
instructions and an Indexed Addressing mode.
This extension has been specifically designed to
optimize re-entrant application code originally
developed in high-level languages, such as C.
• Enhanced CCP module: In PWM mode, this
module provides one, two or four 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 four 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 26.0 “Electrical
Specifications” for time-out periods.
1.3 Details on Individual Family
Members
Devices in the PIC18(L)F1XK22 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 PIC18(L)F13K22
• 16 Kbytes for PIC18(L)F14K22
All other features for devices in this family are identical.
These are summarized in Ta bl e 1 -1 .
The pinouts for all devices are listed in Tabl e 1 and I/O
description are in Table 1-2.