Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

TMP451JQDQFTQ1 Datasheet(PDF) 15 Page - Texas Instruments

Click here to check the latest version.
Part No. TMP451JQDQFTQ1
Description  짹1째C Remote and Local Temperature Sensor With 管-Factor and Offset Correction, Series-Resistance Cancellation, and Programmable Digital Filter
Download  37 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TMP451JQDQFTQ1 Datasheet(HTML) 15 Page - Texas Instruments

Back Button TMP451JQDQFTQ1 Datasheet HTML 11Page - Texas Instruments TMP451JQDQFTQ1 Datasheet HTML 12Page - Texas Instruments TMP451JQDQFTQ1 Datasheet HTML 13Page - Texas Instruments TMP451JQDQFTQ1 Datasheet HTML 14Page - Texas Instruments TMP451JQDQFTQ1 Datasheet HTML 15Page - Texas Instruments TMP451JQDQFTQ1 Datasheet HTML 16Page - Texas Instruments TMP451JQDQFTQ1 Datasheet HTML 17Page - Texas Instruments TMP451JQDQFTQ1 Datasheet HTML 18Page - Texas Instruments TMP451JQDQFTQ1 Datasheet HTML 19Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 15 / 37 page
background image
15
TMP451-Q1
www.ti.com
SLOS877B – OCTOBER 2014 – REVISED JUNE 2019
Product Folder Links: TMP451-Q1
Submit Documentation Feedback
Copyright © 2014–2019, Texas Instruments Incorporated
Programming (continued)
7.5.1.3 Serial Bus Address
To communicate with the TMP451-Q1 device, the master must first address slave devices using a slave address
byte. The slave address byte consists of seven address bits, and a direction bit indicating the intent of executing
a read or write operation. The TMP451-Q1 SMBus addresses are shown in Table 3. Additional factory-
programmed device addresses are available upon request.
Table 3. TMP451-Q1 SMBus Addresses
Orderable Part Number (DQF Package)
SMBus Address (7-bit)
TMP451HQDQFRQ1
49
TMP451AQDQFRQ1
4C
TMP451JQDQFRQ1
4E
7.5.1.4 Read and Write Operations
Accessing a particular register on the TMP451-Q1 device is accomplished by writing the appropriate value to the
pointer register. The value for the pointer register is the first byte transferred after the slave address byte with the
R/W bit low. Every write operation to the TMP451-Q1 device requires a value for the pointer register (see
Figure 15).
When reading from the TMP451-Q1 device the last value stored in the pointer register by a write operation is
used to determine which register is read by a read operation. To change which register is read for a read
operation, a new value must be written to the pointer register. This transaction is accomplished by issuing a
slave address byte with the R/W bit low, followed by the pointer register byte; no additional data are required.
The master can then generate a start condition and send the slave address byte with the R/W bit high to initiate
the read command; see Figure 16 for details of this sequence.
If repeated reads from the same register are desired, it is not necessary to continually send the pointer register
bytes, because the TMP451-Q1 retains the pointer register value until it is changed by the next write operation.
The register bytes are sent MSB first, followed by the LSB.
Read operations should be terminated by issuing a not-acknowledge command at the end of the last byte to be
read. For single-byte operation, the master must leave the SDA line high during the acknowledge time of the first
byte that is read from the slave.
7.5.1.5 Timeout Function
If the SMBus timeout function is enabled, the TMP451-Q1 device resets the serial interface if either SCL or SDA
are held low for 25 ms (typical) between a start and stop condition. If the TMP451-Q1 device is holding the bus
low, the device releases the bus and waits for a start condition. To avoid activating the timeout function,
maintaining a communication speed of at least 1 kHz for the SCL operating frequency is necessary. The SMBTO
bit (bit 7) of the consecutive ALERT register controls the timeout enable. Setting the SMBTO bit to a value of 0
(default) disables the timeout. Setting the SMBTO bit to a value of 1 enables the function.
7.5.1.6 High-speed Mode
For the two-wire bus to operate at frequencies above 1 MHz, the master device must issue a high-speed mode
(Hs-mode) master code (0000 1xxx) as the first byte after a start condition to switch the bus to high-speed
operation. The TMP451-Q1 device does not acknowledge this byte, but switches the input filters on SDA and
SCL and the output filter on SDA to operate in HS-mode, allowing transfers at up to 2.5 MHz. After the Hs-mode
master code has been issued, the master transmits a two-wire slave address to initiate a data transfer operation.
The bus continues to operate in Hs-mode until a stop condition occurs on the bus. Upon receiving the stop
condition, the TMP451-Q1 device switches the input and output filters back to fast mode operation.


Similar Part No. - TMP451JQDQFTQ1

ManufacturerPart No.DatasheetDescription
Texas Instruments
Texas Instruments
TMP451JQDQFTQ1 TI1-TMP451JQDQFTQ1 Datasheet
1Mb / 34P
[Old version datasheet]   짹1째C remote and local temperature sensor with 管-factor and offset correction, series-resistance cancellation, and programmable digital filter
TMP451JQDQFTQ1 TI1-TMP451JQDQFTQ1 Datasheet
1Mb / 37P
[Old version datasheet]   TMP451-Q1 짹1째C Remote and Local Temperature Sensor With 管-Factor and Offset Correction, Series-Resistance Cancellation, and Programmable Digital Filter
More results

Similar Description - TMP451JQDQFTQ1

ManufacturerPart No.DatasheetDescription
Texas Instruments
Texas Instruments
TMP451-Q1 TI1-TMP451-Q1 Datasheet
1Mb / 34P
[Old version datasheet]   짹1째C remote and local temperature sensor with 管-factor and offset correction, series-resistance cancellation, and programmable digital filter
TMP451 TI1-TMP451_15 Datasheet
1Mb / 41P
[Old version datasheet]   TMP451 짹1째C Remote and Local Temperature Sensor With 管-Factor and Offset Correction, Series-Resistance Cancellation, and Programmable Digital Filter
TMP442 TI-TMP442_15 Datasheet
1Mb / 29P
[Old version datasheet]   TMP451-Q1 짹1째C Remote and Local Temperature Sensor with 管-Factor and Offset Correction, Series-Resistance Cancellation, and Programmable Digital Filter
TMP451-Q1 TI-TMP451-Q1_15 Datasheet
1Mb / 34P
[Old version datasheet]   TMP451-Q1 짹1째C Remote and Local Temperature Sensor with 管-Factor and Offset Correction, Series-Resistance Cancellation, and Programmable Digital Filter
TMP451-Q1 TI1-TMP451-Q1_V02 Datasheet
1Mb / 37P
[Old version datasheet]   TMP451-Q1 짹1째C Remote and Local Temperature Sensor With 管-Factor and Offset Correction, Series-Resistance Cancellation, and Programmable Digital Filter
TMP411 TI1-TMP411_16 Datasheet
1,012Kb / 33P
[Old version datasheet]   Remote and Local TEMPERATURE SENSOR with N-Factor and Series Resistance Correction
Burr-Brown (TI)
Burr-Brown (TI)
TMP411 BURR-BROWN-TMP411 Datasheet
369Kb / 25P
   짹1C Remote and Local TEMPERATURE SENSOR with N-Factor and Series Resistance Correction
Texas Instruments
Texas Instruments
TMP411-Q1 TI-TMP411-Q1_15 Datasheet
2Mb / 40P
[Old version datasheet]   짹1째C Remote and Local Temperature Sensor With N-Factor and Series Resistance Correction
TMP411 TI1-TMP411_13 Datasheet
973Kb / 32P
[Old version datasheet]   짹1째C Remote and Local TEMPERATURE SENSOR with N-Factor and Series Resistance Correction
TMP411ADRG4 TI-TMP411ADRG4 Datasheet
747Kb / 32P
[Old version datasheet]   짹1째C Remote and Local TEMPERATURE SENSOR with N-Factor and Series Resistance Correction
More results


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz