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PIC12F635T-I/MD 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:
DFN-8
描述:
8位微控制器 -MCU 2 KB 64 RAM 6I/O
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PIC12F635T-I/MD数据手册
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2009 Microchip Technology Inc. DS41204H-page 1
PIC12F6XX/16F6XX
This document includes the
programming specifications for the
following device:
1.0 PROGRAMMING THE
PIC12F6XX/16F6XX DEVICES
The PIC12F6XX/16F6XX devices are programmed
using a serial method. The Serial mode will allow the
PIC12F6XX/16F6XX devices to be programmed while
in the user’s system. This programming specification
applies to the PIC12F6XX/16F6XX devices in all
packages.
1.1 Hardware Requirements
PIC12F6XX/16F6XX devices require one power supply
for V
DD (5.0V) and one for VPP (12.0V).
1.2 Program/Verify Mode
The Program/Verify mode for the PIC12F6XX/16F6XX
devices allow programming of user program memory,
data memory, user ID locations and the Configuration
Word.
Programming and verification can take place on any
memory region, independent of the remaining regions.
This allows independent programming of program and
data memory regions. Therefore, unprotected data
memory can be reprogrammed and protected without
losing the content in the program memory.
TABLE 1-1: PIN DESCRIPTIONS IN PROGRAM/VERIFY MODE
• PIC12F635 • PIC16F684
• PIC12F683 • PIC16F685
• PIC16F631 • PIC16F687
• PIC16F636 • PIC16F688
• PIC16F639 • PIC16F689
• PIC16F677 • PIC16F690
Pin Name
During Programming
Function Pin Type Pin Description
GP1/RA1 ICSPCLK I Clock input – Schmitt Trigger input
GP0/RA0 ICSPDAT I/O Data input/output – Schmitt Trigger input
MCLR
Program/Verify mode P
(1)
Program Mode Select
V
DD VDD P Power Supply
VSS VSS P Ground
Legend: I = Input, O = Output, P = Power
Note 1: In the PIC12F6XX/16F6XX, the programming high voltage is internally generated. To activate the
Program/Verify mode, high voltage needs to be applied to MCLR input. Since the MCLR is used for a level
source, MCLR
does not draw any significant current.
PIC12F6XX/16F6XX Memory Programming Specification
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