Data Sheet
MLX90614 family
Single and Dual Zone
Infra Red Thermometer in TO-39
3901090614 Page 16 of 52 Data Sheet
Rev 008 February 28, 2013
REPEATED START, STOP, ACK, and NACK bits. The PEC is a CRC-8 with polynomial X8+X2+X1+1. The
Most Significant Bit of every byte is transferred first.
8.4.3.1.1 Read Word (depending on the command – RAM or EEPROM)
Figure 5: SMBus read word format
8.4.3.1.2 Write Word (depending on the command – RAM or EEPROM)
Figure 6: SMBus write word format
8.4.4 Bit transfer
SCL
Sampling data
SDA
Changing data
Figure 7: Recommended timing on SMBus
S
Wr
Slave Address
A
Data Byte Low
A
P
Command
A
Sr
Slave Address
Rd
1
7
1
1
8
1
1
7
1
8
1
1
………..
………..
A
1
Data Byte High
A
8
1
PEC
A
8
1
S
Wr
Slave Address
A
Data Byte Low
A
P
Command
A
1
7
1
1
8
1
8
1
1
………..
………..
Data Byte High
A
8
1
PEC
A
8
1