S-5851AAA-I6T1U Datasheet, PDF (11/29 Pages) Seiko Instruments Inc – 2-WIRE DIGITAL TEMPERATURE SENSOR

Rev. 2.1_00
2-WIRE DIGITAL TEMPERATURE SENSOR
S-5851A Series
„ Registers
1. Configuration of register
The S-5851A Series has a temperature register for reading temperature data, a configuration register to set operations
of the S-5851A Series and a pointer register that sets which register will operate Read/Write.
Pointer register
SDA
SCL
Interface circuit
Temperature register
Configuration register
Figure 11 Configuration of Register
2. Pointer register
The pointer register is an 8-bit register that sets which register will operate Read/Write. Write 00h in the pointer register
enables to Read the temperature register. Write 01h enables to Read/Write the configuration register. The value is 00h
after power-up/reset of the pointer register.
Users are not able to read the point register directly. When you are uncertain of the value in the pointer register,
designate the pointer register again.
0
0
0
0
0
0
0
MSB
Figure 12 Configuration of Pointer Register
P0
LSB
Seiko Instruments Inc.
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