TC77
DS20092A-page 10
?2002 Microchip Technology Inc.
FIGURE 3-2:
Temperature Read Timing Diagram - (Reading only the first 13 Bits of the
Temperature Register).
FIGURE 3-3:
Temperature Read Followed By A Write To The Configuration Register Timing.
Diagram.
It is recommended that the user write all 0s or all 1s
to the Configuration register. While the following codes
can be transmitted to the TC77, any other code may
put the TC77 into a test mode reserved by Microchip for
calibration and production verification tests.
" 00 hex
" 01 hex
" 03 hex
" 07 hex
" 0F hex
" 1F hex
" 3F hex
" 7F hex
" FF hex
The following communication steps can be used to
obtain the Manufacturer's ID and put the device into the
Continuous Conversion mode. The Manufacturers ID
register is only accessible for a read operation, if the
TC77 is in Shutdown mode.
1. CS
goes low to initiate the communication cycle.
2. Read 16 bits of temperature data from the
Temperature register.
3. Write 16 bits of data (i.e. XXFF hex) to the Con-
figuration register to enter Shutdown mode.
4. Read the 16 bits from the Manufacturer's ID reg-
ister (C15:C8 = 54 hex) to verify that the sensor
is a Microchip device.
5. Write 8 to 16 bits of data (00 or 0000 hex) to
enter Continuous Conversion Mode.
6. Return CS
high to terminate the communication
cycle.
The time between a complete temperature conversion
and data transmission is approximately 300 msec.
CS
CLK
SI/O
t
CS-SCK
HI-Z
HI-Z
T T
T
12 11 10
T
9
T
7
T
6
T
5
T
4
T
3
T
2
T
1
T
0
1
8
13
T
8
CS
CLK
SI/O
t
CS-SCK
HI-Z
1
8
8
8
8
1
HI-Z
1
1
HI-Z
TEMPERATURE REGISTER
Notes:
1. Bit 2 = 0 during power-up for the first
temperature conversion.
2. Bit 2 =1 after the completion of the first tem-
perature conversion following power-up or a
reset event.
3. Bits 1 and 0 are DON T CARES .
CONFIGURATION REGISTER
Notes:
1. XX00 = Continuous Conversion Mode
2. XXFF = Shutdown Mode
T
12
T
11
T
10
T
9
T
8
T
7
T
6
T
5
T
4
T
3
T
2
T
1
T
0
BIT
2
C
15
C
14
C
13
C
12
C
11
C
10
C
9
C
8
C
7
C
6
C
5
C
4
C
3
C
2
C
1
C
0
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
TC9402EJD
IC V-FREQ/FREQ-V CONV 14CDIP
TCN75-5.0MUAG
IC TEMP SENSOR SRL 5.0V 8MSOP
TEA1750T/N1,518
IC PFC CONTROLLER DCM16SOIC
TEA1751T/N1,518
IC CTRLR GREENCHIP SMPS 16-SOIC
TEA1761T/N2,118
IC CTRLR GREENCHIP SYNC 8-SOIC
TEA1762T/N2/DG,118
IC CTLR SMPS SW SO14
TEA1791T/N1,118
IC CTRLR GREENCHIP SYNC 8-SOIC
TMP03FS-REEL
IC SENSOR TEMP/SERIAL OC 8SOIC
相关代理商/技术参数
TC777
制造商:Datak Corporation 功能描述:Auto Power Plug With 10 Amp Fuse 制造商:Datak Corporation 功能描述:PLUG, AUTOMOTIVE POWER ACCESSORIES
TC777B
制造商:Datak Corporation 功能描述:CORD, AUTOMOTIVE POWER ACCESSORIES
TC77A
制造商:CDE 制造商全称:Cornell Dubilier Electronics 功能描述:Axial Leaded Aluminum Electrolytic Capacitors
TC77DM-PICTL
功能描述:温度传感器开发工具 TC77 Thermal Sensor PICtail Demo RoHS:否 制造商:Texas Instruments 产品类型:Temperature Sensors and Control ICs 工具用于评估:MSP430G2553 接口类型:USB 工作电源电压: 工作电源电流:
TC78
功能描述:铝质电解电容器 - 带引线 450V 40uF ELEC AXIAL RoHS:否 制造商:Kemet 引线类型: 电容:220 uF 容差:20 % 电压额定值:25 V 工作温度范围: 端接类型:Radial 外壳直径:8 mm 外壳长度:11 mm 引线间隔:5 mm 产品:General Purpose Electrolytic Capacitors 封装:Bulk
TC7805A-5.0VBB
制造商:Rochester Electronics LLC 功能描述:- Bulk
TC7805A-5.0VRB
制造商:Rochester Electronics LLC 功能描述:- Bulk
TC7812A-12.0VRB
制造商:Rochester Electronics LLC 功能描述:- Bulk