TCN75_13 Datasheet, PDF (12/20 Pages) Microchip Technology – 2-Wire Serial Temperature Sensor and Thermal Monitor

TCN75
1
91
91
9
1
Start
by
Master
0 0 1 A2 A1 A0 R/W D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
Stop
Ack
Ack
No Ack Cond
Address Byte
by Most Significant Data Byte by Least Significant Data Byte
by
by
TCN75
Master
Master Master
(a) Typical 2-Byte Read From Preset Pointer Location Such as Temp, TOS, THYST
1
91
9
.....
1 0 0 1 A2 A1 A0 R/W
0 0 0 0 0 0 D1 D0
.....
Start
by
Master
Address Byte
Ack
by
TCN75
Pointer Byte
Ack
by
TCN75
1
91
91
9
1 0 0 1 A2 A1 A0 R/W D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
Repeat
Start
by
Master
Address Byte
Ack
by Most Significant Data Byte
TCN75
Ack
by Least Significant Data Byte
Master
No Ack
by
Master
Stop
Cond
by
Master
(b) Typical Pointer Set Followed by Immediate Read for 2-Byte Register Such as Temp, TOS, THYST
1
91
9
1 0 0 1 A2 A1 A0 R/W D7 D6 D5 D4 D3 D2 D1 D0
Start
by
Master
Address Byte
Ack
by
TCN75T
Data Byte
Stop
No Ack Cond
by
by
Master Master
(c) Typical 1-Byte Read From Configuration Register with Preset Pointer
FIGURE 5-1:
Timing Diagrams
DS21490D-page 12
 2001-2012 Microchip Technology Inc.