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| 型号： | MCP9808T-E/MS |
| 厂商： | Microchip Technology |
| 文件页数： | 43/52页 |
| 文件大小： | 1085K |
| 描述： | IC TEMP SENSOR DGTL I2C 8MSOP |
| 标准包装： | 2,500 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -40°C ~ 125°C |
| 精确度： | ±1°C |
| 拓扑： | ADC（三角积分型），寄存器库 |
| 输出类型： | 2 线串行，I²C?/SMBUS? |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 带卷 (TR) |
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?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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