TCN75-5.0MOA データシートの表示（PDF） - TelCom Semiconductor, Inc

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TCN75-5.0MOA

2-WIRE SERIAL TEMPERATURE SENSOR AND THERMAL MONITOR

TelCom Semiconductor, Inc 

PRELIMINARY INFORMATION

2-WIRE SERIAL TEMPERATURE

SENSOR AND THERMAL MONITOR

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

Start

by

Master

Address Byte

Ack

by Most Significant Data Byte

TCN75

Ack

by Least Significant Data Byte

Master

Stop

No Ack Cond

by

by

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

Repeat

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

Address Byte

Ack

by Most Significant Data Byte

TCN75

Ack

by Least Significant Data Byte

Master

Stop

No Ack Cond

by

by

Master 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

TCN75

Data Byte

Stop

No Ack Cond

by

by

Master Master

(c) Typical 1-Byte Read From Configuration Register With Preset Pointer

1

91

9

1

91

9

1 0 0 1 A2 A1 A0 R/W

0 0 0 0 0 0 0 D0

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

Start

by

Master

Address Byte

Ack

by

TCN75

Pointer Byte

Ack Repeat

by Start

TCN75 by

Address Byte

Master

(d) Typical Pointer Set Followed by Immediate Read from Configuration Register

Ack

by

TCN75

Data Byte

Stop

No Ack Cond

by

by

Master Master

1

91

91

9

1 0 0 1 A2 A1 A0 R/W

0 0 0 0 0 0 D1 D0

0 0 0 D4 D3 D2 D1 D0

Start

by

Master

Address Byte

Ack

by

TCN75

Pointer Byte

Ack

by

TCN75

Configuration Byte

Stop

Ack Cond

by by

TCN75 Master

(e) Configuration Register Write

1

91

91

91

9

1 0 0 1 A2 A1 A0 R/W

0 0 0 0 0 0 D1 D0

D7 D6 D5 D4 D3 D2 D1 D0

D7 D6 D5 D4 D3 D2 D1 D0

Start

by

Master

Address Byte

Ack

by

TCN75

Pointer Byte

Ack

by

TCN75

Most Significant Data Byte

Ack

by Least Significant Data Byte

TCN75

Ack

by

TCN75

Stop

Cond

by

Master

(f) TOS and THYST Write

TCN75-04 6/16/97

Figure 2. Timing Diagrams

6

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