Datasheet 搜索 > 微控制器 > Microchip（微芯） > PIC16F648AT-E/SO 数据手册 > PIC16F648AT-E/SO 用户编程技术手册 2/22 页
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PIC16F648AT-E/SO 用户编程技术手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
SOIC-18
描述:
基于闪存的8位CMOS微控制器采用纳瓦技术 Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology
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PIC16F648AT-E/SO数据手册
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PIC16F627A/628A/648A
DS41196G-page 2 Preliminary © 2007 Microchip Technology Inc.
FIGURE 1-2: 28-PIN QFN PIC16F627A/628A/648A DIAGRAM
TABLE 1-1: PIN DESCRIPTIONS (DURING PROGRAMMING): PIC16F627A/628A/648A
Pin Name
During Programming
Function Pin Type Pin Description
RB4 PGM I Low-voltage programming input if Configuration bit equals 1
RB6 CLOCK I Clock input
RB7 DATA I/O Data input/output
MCLR
/VPP Programming Mode P
(1)
Program Mode Select
VDD VDD P Power Supply
VSS VSS PGround
Legend: I = Input, O = Output, P = Power
Note 1: In the PIC16F627A/628A/648A, the programming high voltage is internally generated. To activate the
Programming mode, high voltage needs to be applied to MCLR
input. Since the MCLR is used for a level
source, this means that MCLR
does not draw any significant current.
NC
NC
28
27
26
25
24
23
1
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
RA2/AN2/VREF
RA3/AN3/CMP1
RA4/T0CKI/CMP2
RA5/MCLR/VPP
VSS
RB0/INT
RB1/RX/DT
RB2/TX/CK
RB3/CCP1
RA1/AN1
RA0/AN0
RA7/OSC1/CLKIN
RB7/DATA/T1OSI
RB5
VDD
RB4/PGM
VSS
NC
NC
NC
NC
NC
NC
V
DD
RA6/OSC2/CLKOUT
RB6/CLOCK/T1OSO/T1CKI
PIC16F627A/628A/
648A
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