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TMP421 Fiches technique(PDF) 21 Page - Texas Instruments

No de pièce TMP421
Description  ±1°C Remote and Local TEMPERATURE SENSOR
PDF  36 Pages
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Fabricant  TI2 [Texas Instruments]
Site Internet  https://www.ti.com
Logo TI2 - Texas Instruments

TMP421 Fiches technique(HTML) 21 Page - Texas Instruments

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background image
Frame1Two-WireSlaveAddressByte
Frame2PointerRegisterByte
1
StartBy
Master
ACKBy
TMP421/22/23
ACKBy
TMP421/22/23
1
9
1
Frame3DataByte1
ACKBy
TMP421/22/23
1
D7
SDA
(Continued)
SCL
(Continued)
D6
D5
D4
D3
D2
D1
D0
9
9
SDA
SCL
0
0
1
1
0
0
(1)
R/W
P7
P6
P5
P4
P3
P2
P1
P0
¼
¼
StopBy
Master
Frame1Two-WireSlaveAddressByte
Frame2PointerRegisterByte
1
StartBy
Master
ACKBy
TMP421/22/23
ACKBy
TMP421/22/23
Frame3Two-WireSlaveAddressByte
Frame4DataByte1ReadRegister
StartBy
Master
ACKBy
TMP421/22/23
NACKBy
Master
(2)
From
TMP421/22/23
1
9
1
9
1
9
1
9
SDA
SCL
0
0
1
R/W
P7
P6
P5
P4
P3
P2
P1
P0
¼
¼
¼
¼
SDA
(Continued)
SCL
(Continued)
1
0
0
1
1
0
0
(1)
1
0
0
(1)
R/W
D7
D6
D5
D4
D3
D2
D1
D0
TMP421
TMP422
TMP423
www.ti.com
SBOS398C – JULY 2007 – REVISED MAY 2012
(1) Slave address 1001100 shown.
Figure 17. Two-Wire Timing Diagram for Write Word Format
(1) Slave address 1001100 shown.
(2) Master should leave SDA high to terminate a single-byte read operation.
Figure 18. Two-Wire Timing Diagram for Single-Byte Read Format
Copyright © 2007–2012, Texas Instruments Incorporated
Submit Documentation Feedback
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Product Folder Link(s): TMP421 TMP422 TMP423



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