TMP461 datasheet(15/38 Pages) TI2

номер детали	TMP461

подробное описание детали	TMP461-EP (Enhanced Product), High-Accuracy Remote and Local Temperature Sensor with Pin-Programmable Bus Address

PDF	38 Pages

Scroll/Zoom	100%

производитель	TI2 [Texas Instruments]

домашняя страница	https://www.ti.com

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15 / 38 page

Bus Idle:

Both SDA and SCL lines remain high.

Start Data

Transfer:

A change in the state of the SDA line (from high to low) when the SCL line is high defines

a start condition. Each data transfer initiates with a start condition.

Stop Data

Transfer:

A change in the state of the SDA line (from low to high) when the SCL line is high defines

a stop condition. Each data transfer terminates with a repeated start or stop condition.

Data Transfer:

The number of data bytes transferred between a start and stop condition is not limited and

is determined by the controller device. The receiver acknowledges the data transfer.

Acknowledge:

Each receiving device, when addressed, is obliged to generate an acknowledge bit. A

device that acknowledges must pull down the SDA line during the acknowledge clock

pulse in such a way that the SDA line is stable low during the high period of the

acknowledge clock pulse. Take setup and hold times into account. On a controller receive,

data transfer termination can be signaled by the controller generating a not-acknowledge

on the last byte that is transmitted by the target.

Frame 1 Two Wire Device Address Byte

Frame 2 Pointer Register Byte

Host

Device

Frame 3 Data Byte 1

ACK By

Device

SDA

(Continued)

SCL

(Continued)

SCL

…

Start By

ACK By

SDA

…

(1)

Stop By

Host

Target address 1001100 is shown.

Figure 7-6. Two-Wire Timing Diagram for Write Word Format

www.ti.com

TMP461-EP

SNIS241 – SEPTEMBER 2025

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