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| 型号： | MA160014 |
| 厂商： | Microchip Technology |
| 文件页数： | 5/71页 |
| 文件大小： | 0K |
| 描述： | MOD PLUG-IN 44PIN PIC18LF45K22 |
| 标准包装： | 1 |
| 系列： | PIC® XLP™ 18F |
| 附件类型： | 插拔式模块（PIM）- PIC18LF45K22 |
| 适用于相关产品： | PICDEM PIC18 Explorer，DM183032 |
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2010-2012 Microchip Technology Inc.
DS41412F-page 13
PIC18(L)F2X/4XK22
1.0
DEVICE OVERVIEW
This document contains device specific information for
the following devices:
This family offers the advantages of all PIC18
microcontrollers
–
namely,
high
computational
performance at an economical price – with the addition
of high-endurance, Flash program memory. On top of
these
features,
the
PIC18(L)F2X/4XK22
family
introduces design enhancements that make these
microcontrollers a logical choice for many high-
performance, power sensitive applications.
1.1
New Core Features
1.1.1
XLP TECHNOLOGY
All of the devices in the PIC18(L)F2X/4XK22 family
incorporate a range of features that can significantly
reduce power consumption during operation. Key
items include:
Alternate Run Modes: By clocking the controller
from the Timer1 source or the internal oscillator
block, power consumption during code execution
can be reduced by as much as 90%.
Multiple Idle Modes: The controller can also run
with its CPU core disabled but the peripherals still
active. In these states, power consumption can be
reduced even further, to as little as 4% of normal
operation requirements.
On-the-fly Mode Switching: The power-
managed modes are invoked by user code during
operation, allowing the user to incorporate power-
saving ideas into their application’s software
design.
Low Consumption in Key Modules: The power
requirements for both Timer1 and the Watchdog
Timer are minimized. See Section 27.0 “Electri-
for values.
1.1.2
MULTIPLE OSCILLATOR OPTIONS
AND FEATURES
All of the devices in the PIC18(L)F2X/4XK22 family
offer ten different oscillator options, allowing users a
wide range of choices in developing application
hardware. These include:
Four Crystal modes, using crystals or ceramic
resonators
Two External Clock modes, offering the option of
using two pins (oscillator input and a divide-by-4
clock output) or one pin (oscillator input, with the
second pin reassigned as general I/O)
Two External RC Oscillator modes with the same
pin options as the External Clock modes
An internal oscillator block which contains a
16 MHz HFINTOSC oscillator and a 31 kHz
LFINTOSC oscillator, which together provide eight
user selectable clock frequencies, from 31 kHz to
16 MHz. This option frees the two oscillator pins
for use as additional general purpose I/O.
A Phase Lock Loop (PLL) frequency multiplier,
available to both external and internal oscillator
modes, which allows clock speeds of up to
64 MHz. Used with the internal oscillator, the PLL
gives users a complete selection of clock speeds,
from 31 kHz to 64 MHz – all without using an
external crystal or clock circuit.
Besides its availability as a clock source, the internal
oscillator block provides a stable reference source that
gives
the
family
additional
features
for
robust
operation:
Fail-Safe Clock Monitor: This option constantly
monitors the main clock source against a
reference signal provided by the LFINTOSC. If a
clock failure occurs, the controller is switched to
the internal oscillator block, allowing for continued
operation or a safe application shutdown.
Two-Speed Start-up: This option allows the
internal oscillator to serve as the clock source
from Power-on Reset, or wake-up from Sleep
mode, until the primary clock source is available.
PIC18F23K22
PIC18LF23K22
PIC18F24K22
PIC18LF24K22
PIC18F25K22
PIC18LF25K22
PIC18F26K22
PIC18LF26K22
PIC18F43K22
PIC18LF43K22
PIC18F44K22
PIC18LF44K22
PIC18F45K22
PIC18LF45K22
PIC18F46K22
PIC18LF46K22
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