參數(shù)資料
型號： MCP9808T-E/MS
廠商： Microchip Technology
文件頁數(shù)： 43/52頁
文件大?。?/td> 1085K
描述： IC TEMP SENSOR DGTL I2C 8MSOP
標準包裝： 2,500
功能： 溫度監(jiān)控系統(tǒng)（傳感器）
傳感器類型： 內部
感應溫度： -40°C ~ 125°C
精確度： ±1°C
拓撲： ADC（三角積分型），寄存器庫
輸出類型： 2 線串行，I²C?/SMBUS?
輸出警報： 是
輸出風扇： 是
電源電壓： 2.7 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）
供應商設備封裝： 8-MSOP
包裝： 帶卷 (TR)
?2011 Microchip Technology Inc.
DS25095A-page 45
MCP9808
Software License Agreement
The software supplied herewith by Microchip Technology Incorporated (the Company) is intended and supplied to you, the
Companys customer, for use solely and exclusively with products manufactured by the Company.
The software is owned by the Company and/or its supplier, and is protected under applicable copyright laws. All rights are reserved.
Any use in violation of the foregoing restrictions may subject the user to criminal sanctions under applicable laws, as well as to civil
liability for the breach of the terms and conditions of this license.
THIS SOFTWARE IS PROVIDED IN AN AS IS CONDITION. NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATU-
TORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICU-
LAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR
SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
APPENDIX A:   SOURCE CODE
/********************************************************************
 FileName: I2C.c
 Processor:
PIC18 Microcontrollers
 Complier:    Microchip C18 (for PIC18) or C30 (for PIC24)
 Company:
Microchip Technology, Inc.
#include // This code is developed for PIC18F2550
//It can be modified to be used with any PICmicro with MSSP module
/** PRIVATE PROTOTYPES *********************************************/
void i2c_init(void);
void i2c_start(void);
void i2c_repStart(void);
void i2c_stop(void);
unsigned char i2c_write( unsigned char i2cWriteData );
unsigned char i2c_read( unsigned char ack );
/********************************************************************
* Function Name: i2c_init
* Return Value: void
* Parameters: Enable SSP
* Description: This function sets up the SSP1 module on a
* PIC18CXXX device for use with a Microchip I2C
********************************************************************/
void i2c_init(void) {
  TRISBbits.TRISB0 = 1; // Digital Output (make it input only when reading data)
  TRISBbits.TRISB1 = 1; // Digital Output
  SSPCON1 = 0x28; // enable I2C Master mode
  SSPCON2 = 0x00; // clear control bits
  SSPSTAT = 0x80; // disable slew rate control; disable SMBus
  SSPADD = 19; // set baud rate to 100 kHz (Fosc = 48 MHz)
  PIR1bits.SSPIF = 0;
  PIR2bits.BCLIF = 0;
  SSPCON2bits.SEN = 0; // force idle condition
}
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