MM3286 Mitsumi Electronics, Corp., MM3286 Datasheet - Page 6

• Manufacturer Part Number: MM3286
• Description: 2 Temperature Sensor For I2c Bus
• Manufacturer: Mitsumi Electronics, Corp.

MITSUMI
I
2
lines, SDA and SCL. The data is transferred for every byte and at the end of every byte transfer the
acknowledgment is inserted. The data transmit and receive are started with MSB first from Start condition.
[I
Read mode
below.
Write mode
C BUS
S
S
2
The bus system, I
MM3286 has a pointer register and 4 data registers that are selected with the pointer register.
In Temperature, Configuration, T
*
In Configuration, T
*
C Data Format]
When the selected register is the Configuration register, the data byte is 1byte only.
When the Configuration register is selected with the pointer byte, the data byte is 1byte only.
1
1
0
0
Slave address
Slave address
Address byte
Address byte
SDA
SCL
0
0
1 A2 A1 A0 1
1 A2 A1 A0 0
S
2
C BUS is the system internal to the equipment, and is used to transfer the data with 2
OS
1 2 3
and T
SDA
SCL
HYST
R/W
R/W
4 5 6 7 8 A
registers, data format in the Write mode is set up as shown below.
OS
Address
A
A
Pointer register
and T
D15 D14 D13 D12 D11 D10 D9 D8
D15 D14 D13 D12 D11 D10 D9 D8
0
Interface
HYST
0
Pointer Register
registers, data format in the Read mode is set up as shown
0
Pointer byte
Data byte
Data byte
1 2 3
DATA1
DATA1
0
0
Data
0 D2 D1
Temperature Sensor for I
Configuration register
Temperature register
8 A
T
(Read/Write)
(Read/Write)
(Read/Write)
T
(Read only)
HYST
OS
register
register
A
A
A
P
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
S:Start Condition
P:Stop Condition
A:Acknowledge
Data byte
Data byte
DATA2
DATA2
2
C BUS MM3286 Series
P
P