MCP2140DM-TMPSNS Microchip Technology, MCP2140DM-TMPSNS Datasheet - Page 29

• Manufacturer Part Number: MCP2140DM-TMPSNS
• Description: BOARD DEMO FOR MCP2140
• Manufacturer: Microchip Technology

Specifications of MCP2140DM-TMPSNS

• Main Purpose: Interface, IrDA
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP2140
• Primary Attributes: IrDA Controller with PIC18F MCU and Temp Sensor Temp
• Secondary Attributes: Set up as a Data Logger
• Processor To Be Evaluated: MCP2140
• Interface Type: ICSP
• Silicon Manufacturer: Microchip
• Silicon Core Number: MCP2140
• Kit Application Type: Sensing - Temperature
• Application Sub Type: Temperature Sensor
• Kit Contents: Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: MCP2140DM-TMPSNSR; MCP2140DM-TMPSNSR

A.1
A.2
 2004 Microchip Technology Inc.
INTRODUCTION
SCHEMATICS AND PCB LAYOUT
This appendix contains the following schematics and layouts for the MCP2140 IrDA
Standard Wireless Temperature Sensor Demo Board:
• Board Schematic - Digital circuitry
• Board Schematic - Analog circuitry
• Board - Top Layer
• Board - Bottom Layer
• Board - Ground Layer
• Board - Power Layer
Figure A-2 shows the schematic of the digital circuitry, while Figure A-3 shows the
analog circuitry for the MCP2140 receiver circuitry and transmitter circuitry.
Figure A-4 through Figure A-7 show the layout for the four different layers of the
MCP2140 IrDA Standard Wireless Temperature Sensor Demo Board. The layer order
is shown in Figure A-1.
FIGURE A-1:
A.2.1
There are 3 ECNs to the Rev. 1 version of the board. Two relate to the use of alternate
optical transceivers and are discussed in Appendix E. “Alternate Optical Transceiver
Implementation”. The third relates to the pinout of transistor Q6 (MMUN2111LT1). An
incorrect pinout was specified, so the device needs to be rotated 1 pin in the clockwise
direction. Figure A-8 shows how this change will appear.
Appendix A. Schematic and Layouts
Electronic Change Notice (ECN)
WIRELESS TEMPERATURE SENSOR
LAYER ORDER
DEMO BOARD USER’S GUIDE
MCP2140 IrDA
Top Layer
Ground Layer
Power Layer
Bottom Layer
®
STANDARD
DS51487A-page 25