TCN75(2002) データシートの表示（PDF） - Microchip Technology

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TCN75
(Rev.:2002)

2-Wire Serial Temperature Sensor and Thermal Monitor

Microchip Technology 

TCN75

FIGURE 5-1:

TIMING DIAGRAMS

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

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

STOP

Ack

Ack

No Ack Cond

Address Byte

by Most Significant Data Byte by Least Significant Data Byte

by

by

TCN75

Master

Master Master

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

1

91

9

1

START

by

Master

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

STOP

Ack

No Ack Cond

Address Byte

by

Data Byte

by

by

TCN75T

Master Master

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

© 2002 Microchip Technology Inc.

DS21490B-page 11

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