参数资料
| 型号： | MCP402XEV |
| 厂商： | Microchip Technology |
| 文件页数： | 31/46页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR MCP402X |
| 标准包装： | 1 |
| 主要目的： | 数字电位器 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | MCP4021 |
| 主要属性： | 1 个单路电位器，10 千欧，64 抽头，非易失 |
| 次要属性： | 2.7 ~ 5.5 V，150 ppm/°C |
| 已供物品： | 2 板，样品，CD |
| 产品目录页面： | 677 (CN2011-ZH PDF) |
| 相关产品： | MCP4021T-503E/MCDKR-ND - IC DGTL POT 50K 1CH 8DFN MCP4021T-502E/MCDKR-ND - IC DGTL POT 5K 1CH 8DFN MCP4021T-202E/MCDKR-ND - IC DGTL POT 2.1K 1CH 8DFN MCP4021T-103E/MCDKR-ND - IC DGTL POT 10K 1CH 8DFN MCP4021T-502E/MS-ND - IC DGTL POT 5K 1CH 8MSOP MCP4021T-202E/MS-ND - IC DGTL POT 2.1K 1CH 8MSOP MCP4021T-503E/MS-ND - IC DGTL POT 50K 1CH 8MSOP MCP4021T-103E/MS-ND - IC DGTL POT 10K 1CH 8MSOP MCP4021T-103E/SN-ND - IC DGTL POT 10K 1CH 8SOIC MCP4021T-202E/SN-ND - IC DGTL POT 2.1K 1CH 8SOIC 更多... |
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MCP401X/2X EVALUATION
BOARD USER ’S GUIDE
Appendix D. Potential Programming Issue of the MCP402XEV
D.1
INTRODUCTION
When programming the MCP402XEV with a Microchip programmer (such as the BPMF
or MPLAB ? ICD 2), the PIC10F206 may not program correctly due to the load on the
ICSPDAT pin. This issue relates to PCBs marked 104-00066 and 104-00066R2.
Due to the current path to ground that is present with the D1 and R1 components
through capacitor C2, the programming voltage on the ICSPDAT signal may not meet
the voltage requirements of the PIC10F206 GP1 pin.
To address this when programming the board, lift up one of the terminals of capacitor
C2 (see Figure D-1). This will stop the ICSPDAT signal voltage from being loaded down
After programming, capacitor C2 must be reconnected to the circuit. This is because
this circuit generates the high voltage for the high voltage commands.
This capacitor connection needs
to be opened for programming.
After programming has been
completed, this capacitor needs
to be reconnected in the circuit.
lift this end
FIGURE D-1:
MCP402XEV R2 PCB Layout – ECN #1.
? 2005 Microchip Technology Inc.
DS51546B-page 27
相关PDF资料 |
PDF描述 |
|---|---|
| MCP42XXEV | BOARD EVALUATION MCP42XX |
| MCP43XXEV | BOARD EVALUATION MCP43XX |
| MCP46XXDM-PTPLS | BOARD PICTAIL DIGI POT MCP4XXX |
| MCP46XXEV | EVAL BOARD FOR MCP46XX |
| MCP4XXXDM-DB | BOARD DAUGHTER DIGIPOT MCP4XXX |
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