收藏本站
PICkit? 3 User’s Guide
FIGURE 2-4:
Application
PC Board
V DD
Device
V PP /MCLR
PGC
PGD
STANDARD CONNECTION TARGET CIRCUITRY
User Reset
2
4.7K-10K
1
5
4
AV DD
AV SS
V SS
3
Interface
Connector
2.4.3
Target Powered
In the following descriptions, only three lines are active and relevant to core debugger
operation: pins 1 (V PP /MCLR), 5 (PGC) and 4 (PGD). Pins 2 (V DD ) and 3 (V SS ) are
shown on Figure 2-4 for completeness. PICkit 3 has two configurations for powering
the target device: internal debugger and external target power.
The recommended source of power is external and derived from the target application.
In this configuration, target V DD is sensed by the debugger to allow level translation for
the target low voltage operation. If the debugger does not sense voltage on its V DD line
(pin 2 of the interface connector), it will not operate.
2.4.4
Debugger Powered
The internal debugger power is limited to 30 mA. This may be of benefit for very small
applications that have the device V DD separated from the rest of the application circuit
for independent programming, but is not recommended for general usage as it imposes
more current demands from the USB power system derived from the PC.
Not all devices have the AV DD and AV SS lines, but if they are present on the target
device, all must be connected to the appropriate levels in order for the debugger to
operate. They cannot be left floating.
In general, it is recommended that all V DD /AV DD and V SS /AV SS lines be connected to
the appropriate levels. Also, devices with a V CAP line (PIC18FXXJ for example) should
be connected to the appropriate capacitor or level.
DS51795A-page 18
Note:
The interconnection is very simple. Any problems experienced are often
caused by other connections or components on these critical lines that
interfere with the operation of the PICkit 3 programmer/debugger, as
discussed in the following section.
? 2009 Microchip Technology Inc.
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
DV164132 KIT EVAL F1 FOR PIC12F1/PIC16F1
DV243003 KIT STARTER FOR SRL MEM PRODUCTS
DVA1001 ADAPTER FOR PIC16F716 18DIP
DVA1004 DEVICE ADAPTER 8/14/20DIP
E3R-D12GP-P RELAY RCVR PLUG-IN DIMMER
E3R-R12-3HOTP RCVR 3WIRE RELAY 120V
E3R-R12GP RCVR PLUG-IN RELAY
E3T-MICFP-40 CONVERTER 4-CH SLT SENSOR
相关代理商/技术参数
DV164131 制造商:Microchip Technology Inc 功能描述:PICKIT 3 DEBUG EXPRESS
DV164131-XLP 制造商:Microchip Technology Inc 功能描述:KIT DEV PICKIT 3-XLP/NANOWAT
DV164132 功能描述:开发板和工具包 - PIC / DSPIC F1 Evaluation Kit RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压:
DV164132 制造商:Microchip Technology Inc 功能描述:PIC12F1xxx/PIC16F1xxx F1 Evaluation Kit
DV164133 功能描述:电源管理IC开发工具 Energy Harvesting Development Tool RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
DV164136 功能描述:开发板和工具包 - PIC / DSPIC PIC18F DEV Kit (with PICkit 3) RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压:
DV164139 功能描述:开发板和工具包 - PIC / DSPIC Lo PIn Count USB Dev Kit (w/PICkit 3) RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压:
DV17K3225T 制造商:SEI Stackpole Electronics Inc 功能描述:- Tape and Reel 制造商:SEI Stackpole Electronics Inc 功能描述:Var MOV 17VAC/22VDC 100A 27V 3225 SMD T/R