tcn75a Microchip Technology Inc., tcn75a Datasheet - Page 18

• Manufacturer Part Number: tcn75a
• Description: 2-wire Serial Temperature Sensor
• Manufacturer: Microchip Technology Inc.

TCN75A
FIGURE 5-4:
(See Section 4.0 “Serial Communication”).
DS21935C-page 18
SDA
SCL
• Writing to the T
• Reading the T
SDA
SCL
SDA
SCL
S
1
1
S
2
0
S
1
1
HYST
HYST
Address Byte
Timing Diagram for Writing and Reading from the Temperature Hysteresis Register
0
3
1
1
2
0
4
1
Address Byte
2
0
Register to set the temperature hysteresis to 95°C
Register.
3
0
Address Byte
5
A
2
3
0
4
1
A
6
1
4
1
5
A
2
7
A
0
A
5
2
A
6
1
TCN75A
W
8
6
A
1
0
1
A
7
0
TCN75A
A
C
K
A
7
0
2
1
8
R
TCN75A
W
1
0
8
3
0
MSB Data
A
C
K
2
0
A
C
K
4
1
1
0
T
HYST
3
0
1
0
1
5
2
1
4
0
2
0
6
1
3
0
MSB Data
T
Pointer
HYST
5
0
3
0
7
1
4
1
TCN75A
6
0
4
0
8
1
1
5
Pointer
7
1
5
0
A
C
K
6
1
TCN75A
8
0
6
0
1
0
7
1
A
C
K
7
1
2
0
8
1
Master
TCN75A
8
0
3
0
LSB Data
A
C
K
<
A
C
K
0101 1111 0000 0000
4
0
1
0
Note:
5
0
2
0
6
0
3
© 2006 Microchip Technology Inc.
0
LSB Data
7
0
4
0
It is not necessary to
select
pointer if it was set from
the previous read/write
(see Section 4.1.1).
TCN75A
8
0
5
0
A
C
K
6
0
P
the
7
0
8
0
Master
>b
N
A
K
register
.
P