PIC18F26K22-I/SO Microchip Technology, PIC18F26K22-I/SO Datasheet - Page 324
![IC PIC MCU 64KB FLASH 28SOIC](/photos/28/69/286927/28-soic_m28b_sml.jpg)
PIC18F26K22-I/SO
Manufacturer Part Number
PIC18F26K22-I/SO
Description
IC PIC MCU 64KB FLASH 28SOIC
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC16F722-ISS.pdf
(8 pages)
2.PIC18F26J13-ISS.pdf
(496 pages)
3.PIC18F24K22-ISP.pdf
(494 pages)
Specifications of PIC18F26K22-I/SO
Core Size
8-Bit
Program Memory Size
64KB (32K x 16)
Core Processor
PIC
Speed
64MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
24
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 19x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (0.300", 7.50mm Width)
Controller Family/series
PIC18
No. Of I/o's
25
Eeprom Memory Size
1KB
Ram Memory Size
3896Byte
Cpu Speed
64MHz
No. Of Timers
7
Processor Series
PIC18F
Core
PIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F26K22-I/SO
Manufacturer:
NXP
Quantity:
928
Part Number:
PIC18F26K22-I/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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PIC18(L)F2X/4XK22
EXAMPLE 19-2:
DS41412A-page 324
#include "p18cxxx.h"
#define COUNT 500
#define DELAY for(i=0;i<COUNT;i++)
#define RCAL .027
#define ADSCALE 1023
#define ADREF 3.3
int main(void)
{
//assume CTMU and A/D have been setup correctly
//see Example 25-1 for CTMU & A/D setup
setup();
CTMUCONHbits.CTMUEN = 1;
CTMUCONLbits.EDG1STAT = 0;
CTMUCONLbits.EDG2STAT = 0;
}
int i;
int j = 0;
unsigned int Vread = 0;
double VTot = 0;
float Vavg=0, Vcal=0, CTMUISrc = 0;
for(j=0;j<10;j++)
{
}
Vavg = (float)(VTot/10.000);
Vcal = (float)(Vavg/ADSCALE*ADREF);
CTMUISrc = Vcal/RCAL;
CTMUCONHbits.IDISSEN = 1;
DELAY;
CTMUCONHbits.IDISSEN = 0;
CTMUCONLbits.EDG1STAT = 1;
DELAY;
CTMUCONLbits.EDG1STAT = 0;
PIR1bits.ADIF = 0;
ADCON0bits.GO=1;
while(!PIR1bits.ADIF);
Vread = ADRES;
PIR1bits.ADIF = 0;
VTot += Vread;
CURRENT CALIBRATION ROUTINE
Preliminary
//@ 8MHz = 125uS.
//R value is 4200000 (4.2M)
//scaled so that result is in
//1/100th of uA
//for unsigned conversion 10 sig bits
//Vdd connected to A/D Vr+
//index for loop
//float values stored for calcs
//Enable the CTMU
// Set Edge status bits to zero
//drain charge on the circuit
//wait 125us
//end drain of circuit
//Begin charging the circuit
//using CTMU current source
//wait for 125us
//Stop charging circuit
//make sure A/D Int not set
//and begin A/D conv.
//Wait for A/D convert complete
//Get the value from the A/D
//Clear A/D Interrupt Flag
//Add the reading to the total
//Average of 10 readings
//CTMUISrc is in 1/100ths of uA
2010 Microchip Technology Inc.
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