MCP9700DM-PCTL Microchip Technology, MCP9700DM-PCTL Datasheet - Page 14

• Manufacturer Part Number: MCP9700DM-PCTL
• Description: BOARD DEMO FOR PICTAIL MCP9700
• Manufacturer: Microchip Technology
• Series: PICtail™r

Specifications of MCP9700DM-PCTL

• Sensor Type: Temperature
• Sensing Range: -40°C ~ 125°C
• Interface: Analog
• Sensitivity: ±1°C
• Voltage - Supply: 2.3 V ~ 5.5 V
• Embedded: No
• Utilized Ic / Part: MCP9700
• Processor To Be Evaluated: MCP9700
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

DS51542B-page 10
At this point, the PIC16F676 is reading the temperature data from the MCP9700 and
displaying the temperature on the eight red LEDs (D7-D0) on the PICkit 1 Flash Starter
Kit board. The ten’s digit of the temperature data is represented by bits D7-D4, with D7
being defined as the Most Significant bit (MSb). The one’s digit is defined by bits
D3-D0, with D3 serving as the MSb.
The temperature can be displayed in degrees Celsius or Fahrenheit. The board
defaults to the temperature being displayed in Celsius. To display the temperature in
Fahrenheit, press the SW1 push button switch on the PICkit 1 Flash Starter Kit board.
The display will change back to Celsius once the SW1 push button switch is released.
Table 2-1 provides a list of the LED patterns that correspond to the Binary Code
Decimal (BCD) coding representation of the temperature measurement.
TABLE 2-1:
For example, a temperature reading of 75
D5, D4, D2 and D0 (LEDs D7, D3 and D1 will be turned off), as indicated in Figure 2-5.
Binary
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
Number
BCD CODE REPRESENTATION ON PICkit™ 1 FLASH STARTER
KIT LEDS
BCD
0
1
2
3
4
5
6
7
8
9
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
D7
D3
°
F will be displayed by turning on LEDs D6,
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
D6
D2
© 2006 Microchip Technology Inc.
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
D5
D1
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
D4
D0