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PIC18F4431-I/P 参数 Datasheet PDF下载

PIC18F4431-I/P图片预览
型号: PIC18F4431-I/P
PDF下载: 下载PDF文件 查看货源
内容描述: 28 /40/ 44引脚增强型闪存微控制器采用纳瓦技术,高性能PWM和A / D [28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D]
分类和应用: 闪存微控制器
文件页数/大小: 392 页 / 3127 K
品牌: MICROCHIP [ MICROCHIP ]
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PIC18F2331/2431/4331/4431  
TABLE 1-2:  
PIC18F2331/2431 PINOUT I/O DESCRIPTIONS  
Pin Number  
Pin Buffer  
Pin Name  
Description  
SPDIP,  
SOIC  
Type Type  
QFN  
MCLR/VPP  
MCLR  
1
26  
Master Clear (input) or programming voltage (input).  
Master Clear (Reset) input. This pin is an active-low  
Reset to the device.  
I
ST  
VPP  
P
High-voltage ICSP™ programming enable pin.  
OSC1/CLKI/RA7  
OSC1  
9
6
7
Oscillator crystal or external clock input.  
Oscillator crystal input or external clock source input.  
ST buffer when configured in RC mode; CMOS otherwise.  
External clock source input. Always associated with pin  
function OSC1. (See related OSC1/CLKI, OSC2/CLKO  
pins.)  
I
I
ST  
CLKI  
CMOS  
RA7  
I/O  
TTL  
General purpose I/O pin.  
OSC2/CLKO/RA6  
OSC2  
10  
Oscillator crystal or clock output.  
O
O
Oscillator crystal output. Connects to crystal or  
resonator in Crystal Oscillator mode.  
In RC mode, OSC2 pin outputs CLKO, which has 1/4  
the frequency of OSC1 and denotes the instruction  
cycle rate.  
CLKO  
RA6  
I/O  
TTL  
General purpose I/O pin.  
PORTA is a bidirectional I/O port.  
RA0/AN0  
RA0  
2
3
4
27  
28  
1
I/O  
I
TTL  
Analog  
Digital I/O.  
Analog Input 0.  
AN0  
RA1/AN1  
RA1  
I/O  
I
TTL  
Analog  
Digital I/O.  
Analog Input 1.  
AN1  
RA2/AN2/VREF-/CAP1/INDX  
RA2  
AN2  
VREF-  
CAP1  
INDX  
I/O  
TTL  
Analog  
Analog  
ST  
Digital I/O.  
Analog Input 2.  
A/D reference voltage (low) input.  
Input Capture Pin 1.  
Quadrature Encoder Interface index input pin.  
I
I
I
I
ST  
RA3/AN3/VREF+/CAP2/QEA  
5
6
2
3
RA3  
AN3  
VREF+  
CAP2  
QEA  
I/O  
TTL  
Analog  
Analog  
ST  
Digital I/O.  
Analog Input 3.  
A/D reference voltage (high) input.  
Input Capture Pin 2.  
Quadrature Encoder Interface Channel A input pin.  
I
I
I
I
ST  
RA4/AN4/CAP3/QEB  
RA4  
AN4  
CAP3  
QEB  
I/O  
TTL  
Analog  
ST  
Digital I/O.  
Analog Input 4.  
Input Capture Pin 3.  
Quadrature Encoder Interface Channel B input pin.  
I
I
I
ST  
Legend: TTL = TTL compatible input  
ST = Schmitt Trigger input with CMOS levels  
= Output  
CMOS = CMOS compatible input or output  
I
= Input  
O
P
= Power  
DS39616D-page 16  
2010 Microchip Technology Inc.  
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