 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
TMP411-Q1 Datasheet(PDF) 16 Page - Texas Instruments |
|
|
|
|||||||||||||||||||||||||||||
TMP411-Q1 Datasheet(HTML) 16 Page - Texas Instruments |
|
|
16 / 33 page  TMP411 SBOS383C − DECEMBER 2006 − REVISED MAY 2008 www.ti.com 16 SERIAL INTERFACE The TMP411 operates only as a slave device on either the Two-Wire bus or the SMBus. Connections to either bus are made via the open-drain I/O lines, SDA and SCL. The SDA and SCL pins feature integrated spike suppression filters and Schmitt triggers to minimize the effects of input spikes and bus noise. The TMP411 supports the transmission protocol for fast (1kHz to 400kHz) and high-speed (1kHz to 3.4MHz) modes. All data bytes are transmitted MSB first. SERIAL BUS ADDRESS To communicate with the TMP411, the master must first address slave devices via 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 address of the TMP411A is 4Ch (1001100b). The address of the TMP411B is 4Dh (1001101b). The address of the TMP411C is 4Eh (1001110b). READ/WRITE OPERATIONS Accessing a particular register on the TMP411 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 TMP411 requires a value for the Pointer Register (see Figure 14). When reading from the TMP411, 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 the register pointer 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 15 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 TMP411 retains the Pointer Register value until it is changed by the next write operation. Note that register bytes are sent MSB first, followed by the LSB. Table 11. THERM Hysteresis Register Format THERM HYSTERESIS REGISTER (Read = 21h, Write = 21h, POR = 0Ah) BIT # D7 D6 D5 D4 D3 D2 D1 D0 BIT # D7 D6 D5 D4 D3 D2 D1 D0 BIT NAME TH11 TH10 TH9 TH8 TH7 TH6 TH5 TH4 POR VALUE 0 0 0 0 1 0 1 0 |
Similar Part No. - TMP411-Q1 |
|
Similar Description - TMP411-Q1 |
|
|
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 |
| 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 |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
