Datasheet 搜索 > 微控制器 > Microchip（微芯） > PIC18F8720-I/PT 数据手册 > PIC18F8720-I/PT 用户编程技术手册 1/40 页
器件3D模型￥ 137.823
PIC18F8720-I/PT 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:
TQFP-80
描述:
MICROCHIP PIC18F8720-I/PT 微控制器, 8位, 闪存, PIC18F8xxx, 25 MHz, 128 KB, 3.75 KB, 80 引脚, TQFP
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P1P2Hot
电气规格在P38
导航目录
PIC18F8720-I/PT数据手册
Page:
of 40 Go
若手册格式错乱，请下载阅览PDF原文件
2010 Microchip Technology Inc. DS39583C-page 1
PIC18FXX20
1.0 DEVICE OVERVIEW
This document includes the programming
specifications for the following devices:
• PIC18F6520
• PIC18F6620
• PIC18F6720
• PIC18F8520
• PIC18F8620
• PIC18F8720
2.0 PROGRAMMING OVERVIEW
OF THE PIC18FXX20
PIC18FXX20 devices can be programmed using either
the high voltage In-Circuit Serial Programming
TM
(ICSP
TM
) method, or the low voltage ICSP method.
Both of these can be done with the device in the users’
system. The low voltage ICSP method is slightly
different than the high voltage method, and these
differences are noted where applicable. This
programming specification applies to PIC18FXX20
devices in all package types.
2.1 Hardware Requirements
In high voltage ICSP mode, the PIC18FXX20 requires
two programmable power supplies: one for V
DD and
one for MCLR
/VPP. Both supplies should have a
minimum resolution of 0.25V. Refer to Section 6.0 for
additional hardware parameters.
2.1.1 LOW VOLTAGE ICSP
PROGRAMMING
In low voltage ICSP mode, the PIC18FXX20 can be
programmed using a V
DD source in the operating
range. This only means that MCLR
/VPP does not have
to be brought to a different voltage, but can instead be
left at the normal operating voltage. Refer to
Section 6.0 for additional hardware parameters.
2.2 Pin Diagrams
The pin diagrams for the PIC18FXX20 family are
shown in Figure 2-1. The pin descriptions of these
diagrams do not represent the complete functionality of
the device types. Users should refer to the appropriate
device data sheet for complete pin descriptions.
TABLE 2-1: PIN DESCRIPTIONS (DURING PROGRAMMING): PIC18FXX20
Pin Name
During Programming
Pin Name Pin Type Pin Description
MCL
R/VPP/RA5 VPP P Programming Enable
V
DD
(2)
VDD P Power Supply
V
SS
(2)
VSS P Ground
AV
DD AVDD P Analog Power Supply
AV
SS AVSS P Analog Ground
RB5 PGM I Low Voltage ICSP™ Input when LVP
Configuration bit equals ‘1’
(1)
RB6 SCLK I Serial Clock
RB7 SDATA I/O Serial Data
Legend: I = Input, O = Output, P = Power
Note 1: See Section 5.3 for more detail.
2: All power supply and ground must be connected.
Flash Microcontroller Programming Specification
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
