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TMP144 Datasheet(PDF) 19 Page - Texas Instruments

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Part # TMP144
Description  TMP144 Low-Power, Digital Temperature Sensor With SMAART Wire™ / UART Interface
PDF  41 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMP144 Datasheet(HTML) 19 Page - Texas Instruments

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As shown in Figure 7-15, an individual device read command is indicated by C[0] = 1. As shown in Figure 7-16,
the TMP144 in the daisy-chain that corresponds to the device ID pointed by bits C[6:3] then breaks the bus,
transmits the data from the register pointed by bits C[2:1], and reconnects the bus.
GLBL
IN3/ID3
IN2/ID2
IN1/ID1
IN0/ID0
P1
P0
R/W
ID0
ID1
ID2
ID3
0
1
P0
P1
S
P
0
1
0
1
0
1
0
1
S
P
Calibration Byte (55h)
Command Byte
D11
D12
D13
D14
D15
D8
D9
D10
S
P
D3
D4
D5
D6
D7
D0
D1
D2
S
P
Device-1 Data Byte-1
Device-1 Data Byte-2
Host TX
Host RX
Host TX
Host RX
ID0
ID1
ID2
ID3
0
1
P0
P1
S
P
0
1
0
1
0
1
0
1
S
P
Devices
in Pass
Through
Figure 7-15. Individual Read Command Flow
Host
Device
(1)
Device
(2)
Device
(N)
RX
TX
Interface Logic
Interface Logic
Interface Logic
RX
RX
RX
TX
TX
TX
Figure 7-16. TMP144 Daisy-Chain: Bus Status During Individual Read Operation of Second Device
www.ti.com
TMP144
SBOS891C – OCTOBER 2018 – REVISED SEPTEMBER 2023
Copyright © 2023 Texas Instruments Incorporated
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Product Folder Links: TMP144



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