參數(shù)資料
型號： PIC18LF25K22-I/SO
廠商： Microchip Technology
文件頁數(shù)： 6/71頁
文件大?。?/td> 0K
描述： MCU 8BIT 32KB FLASH 3.6V 28SOIC
產(chǎn)品培訓模塊： 8-bit PIC® Microcontroller Portfolio
標準包裝： 27
系列： PIC® XLP™ 18F
核心處理器： PIC
芯體尺寸： 8-位
速度： 64MHz
連通性： I²C，SPI，UART/USART
外圍設備： 欠壓檢測/復位，HLVD，POR，PWM，WDT
輸入/輸出數(shù)： 24
程序存儲器容量： 32KB（16K x 16）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量： 1.5K x 8
電壓 - 電源 (Vcc/Vdd)： 1.8 V ~ 3.6 V
數(shù)據(jù)轉換器： A/D 19x10b
振蕩器型： 內部
工作溫度： -40°C ~ 85°C
封裝/外殼： 28-SOIC（0.295"，7.50mm 寬）
包裝： 管件
產(chǎn)品目錄頁面： 656 (CN2011-ZH PDF)
PIC18(L)F2X/4XK22
DS41412F-page 14
2010-2012 Microchip Technology Inc.
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 inter-
nal software control. By using a bootloader routine
located in the protected Boot Block at the top of
program memory, it becomes possible to create
an application that can update itself in the field.
Extended Instruction Set: The PIC18(L)F2X/
4XK22 family introduces an optional extension to
the PIC18 instruction set, which adds eight new
instructions and an Indexed Addressing mode.
This extension, enabled as a device configuration
option, 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 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 four outputs to provide the PWM
signal.
Enhanced Addressable EUSART: 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. When the
microcontroller is using the internal oscillator
block, the EUSART provides stable operation for
applications that talk to the outside world without
using an external crystal (or its accompanying
power requirement).
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
Characteristics” for time-out periods.
Charge Time Measurement Unit (CTMU)
SR Latch Output:
1.3
Details on Individual Family
Members
Devices in the PIC18(L)F2X/4XK22 family are avail-
able in 28-pin and 40/44-pin packages. The block dia-
gram for the device family is shown in Figure 1-1.
The devices have the following differences:
1.
Flash program memory
2.
Data Memory SRAM
3.
Data Memory EEPROM
4.
A/D channels
5.
I/O ports
6.
ECCP modules (Full/Half Bridge)
7.
Input Voltage Range/Power Consumption
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 the pin summary
tables: Table 1 and Table 2, and I/O description tables:
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