PIC18F46K80-I/ML Microchip Technology Inc., PIC18F46K80-I/ML Datasheet - Page 257
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PIC18F46K80-I/ML
Manufacturer Part Number
PIC18F46K80-I/ML
Description
44 QFN 8X8X0.9MM TUBE, ECAN, 64KB FLASH, 4KB RAM, 16 MIPS, 12-BIT ADC, CTMU
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F46K80-IPT.pdf
(628 pages)
Specifications of PIC18F46K80-I/ML
A/d Inputs
11-Channel, 12-Bit
Comparators
2
Cpu Speed
16 MIPS
Eeprom Memory
1K Bytes
Input Output
35
Interface
I2C/SPI/UART/USART
Memory Type
Flash
Number Of Bits
8
Package Type
44-pin QFN
Programmable Memory
64K Bytes
Ram Size
3.6K Bytes
Speed
64 MHz
Temperature Range
–40 to 125 °C
Timers
2-8-bit, 3-16-bit
Voltage, Range
1.8-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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18.9
The CTMU, along with an internal diode, can be used
to measure the temperature. The ADC can be con-
nected to the internal diode and the CTMU module can
EXAMPLE 18-6:
2011 Microchip Technology Inc.
// Initialize CTMU
CTMUICON = 0x03;
CTMUCONHbits.CTMUEN = 1;
CTMUCONLbits.EDG1STAT = 1;
// Initialize ADC
ADCON0 = 0xE5;
ADCON1 = 0x00;
ADCON2 = 0xBE;
ADCON0bits.GO = 1;
while(ADCON0bits.G0);
Temp = ADRES;
Note:
Measuring Temperature
CTMU Module
The temperature diode is not calibrated or standardized; the user must calibrate the diode to their application.
ROUTINE FOR TEMPERATURE MEASUREMENT USING INTERNAL DIODE
with
// Enable ADC and connect to Internal diode
//Right Justified
// Start conversion
// Read ADC results (inversely proportional to temperature)
the
Preliminary
PIC18F66K80 FAMILY
source the current to the diode. The ADC reading will
reflect the temperature. With the increase, the ADC
readings will go low. This can be used for low-cost
temperature measurement applications.
DS39977C-page 257
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