參數(shù)資料
型號： PIC18LF4458-I/ML
廠商： Microchip Technology
文件頁數(shù)： 44/46頁
文件大?。?/td> 0K
描述： IC PIC MCU FLASH 12KX16 44QFN
產(chǎn)品培訓(xùn)模塊： Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝： 45
系列： PIC® 18F
核心處理器： PIC
芯體尺寸： 8-位
速度： 48MHz
連通性： I²C，SPI，UART/USART，USB
外圍設(shè)備： 欠壓檢測/復(fù)位，HLVD，POR，PWM，WDT
輸入/輸出數(shù)： 35
程序存儲器容量： 24KB（12K x 16）
程序存儲器類型： 閃存
EEPROM 大小： 256 x 8
RAM 容量： 2K x 8
電壓 - 電源 (Vcc/Vdd)： 2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 13x12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 44-VQFN 裸露焊盤
包裝： 管件
產(chǎn)品目錄頁面： 643 (CN2011-ZH PDF)
2009 Microchip Technology Inc.
DS39887C-page 7
PIC18F2458/2553/4458/4553
1.0
DEVICE OVERVIEW
This document contains device-specific information for
the following devices:
The PIC18F4553 family of devices offers the advan-
tages of all PIC18 microcontrollers – namely, high
computational performance at an economical price –
with the addition of high-endurance, Enhanced Flash
program memory. In addition to these features, the
PIC18F4553 family introduces design enhancements
that make these microcontrollers a logical choice for
many high-performance, power sensitive applications.
1.1
Special Features
12-Bit A/D Converter: The PIC18F4553 family
implements a 12-bit A/D Converter. The A/D
Converter incorporates programmable acquisi-
tion time. This allows for a channel to be selected
and a conversion to be initiated, without waiting
for a sampling period and thus, reducing code
overhead.
1.2
Details on Individual Family
Members
The
PIC18F2458/2553/4458/4553
devices
are
available in 28-pin and 40/44-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
(24 Kbytes
for
PIC18FX458
devices,
32 Kbytes
for
PIC18FX553).
2.
A/D channels (10 for 28-pin devices, 13 for
40-pin and 44-pin devices).
3.
I/O ports (3 bidirectional ports and 1 input only
port on 28-pin devices, 5 bidirectional ports on
40-pin and 44-pin devices).
4.
CCP and Enhanced CCP implementation
(28-pin devices have two standard CCP
modules, 40-pin and 44-pin devices have one
standard CCP module and one ECCP module).
5.
Streaming Parallel Port (present only on
40/44-pin devices).
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 1-2 and
Members of the PIC18F4553 family are available as
both standard and low-voltage devices. Standard
devices with Enhanced Flash memory, designated with
an “F” in the part number (such as PIC18F2458),
accommodate an operating VDD range of 4.2V to 5.5V.
Low-voltage parts, designated by “LF” (such as
PIC18LF2458), function over an extended VDD range
of 2.0V to 5.5V.
PIC18F2458
PIC18F4458
PIC18F2553
PIC18F4553
Note:
This data sheet documents only the
devices’ features and specifications that are
in addition to the features and specifica-
tions of the PIC18F2455/2550/4455/4550
devices. For information on the features
and
specifications
shared
by
the PIC18F2458/2553/4458/4553
and
PIC18F2455/2550/4455/4550
devices,
see the
“PIC18F2455/2550/4455/4550
Data Sheet” (DS39632).
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