TCN75 Datasheet, PDF(12/20 Page) TelCom Semiconductor, Inc – 2-WIRE SERIAL TEMPERATURE SENSOR AND THERMAL MONITOR

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TCN75 Datasheet, PDF (12/20 Pages) TelCom Semiconductor, Inc – 2-WIRE SERIAL TEMPERATURE SENSOR AND THERMAL MONITOR

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TCN75

Start

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

No Ack Cond

Address Byte

by Most Significant Data Byte by Least Significant Data Byte

TCN75

Master

Master Master

(a) Typical 2-Byte Read From Preset Pointer Location Such as Temp, TOS, THYST

.....

1 0 0 1 A2 A1 A0 R/W

0 0 0 0 0 0 D1 D0

.....

Start

Master

Address Byte

Ack

TCN75

Pointer Byte

Ack

TCN75

Repeat

Start

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

No Ack Cond

Address Byte

by Most Significant Data Byte by Least Significant Data Byte

TCN75

Master

Master Master

(b) Typical Pointer Set Followed by Immediate Read for 2-Byte Register Such as Temp, TOS, THYST

Start

Master

0 0 1 A2 A1 A0 R/W D7 D6 D5 D4 D3 D2 D1 D0

Stop

Ack

No Ack Cond

Address Byte

Data Byte

TCN75T

Master Master

FIGURE 5-1:

Timing Diagrams

DS21490C-page 12

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