ADT7463ARQ datasheet(10/52 Pages) ONSEMI

Numer części	ADT7463ARQ

Szczegółowy opis	dB COOL??Remote Thermal Controller and Voltage Monitor

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REV. C

–10–

ADT7463

R/W

0

SCL

SDA

10

1

A1

A0

D7

D6

D5

D4

D3

D2

D1

D0

ACK. BY

ADT7463

START BY

MASTER

FRAME 1

SERIAL BUS ADDRESS

BYTE

FRAME 2

ADDRESS POINTER REGISTER BYTE

19

1

ACK. BY

ADT7463

9

D7

D6

D5

D4

D3

D2

D1

D0

ACK. BY

ADT7463

STOP BY

MASTER

FRAME 3

DATA

BYTE

1

9

SCL (CONTINUED)

SDA (CONTINUED)

Figure 7. Writing a Register Address to the Address Pointer Register, Then Writing Data to the Selected Register

2. Data is sent over the serial bus in sequences of nine clock

pulses, eight bits of data followed by an Acknowledge Bit

from the slave device. Transitions on the data line must

occur during the low period of the clock signal and remain

stable during the high period, as a low-to-high transition

when the clock is high may be interpreted as a STOP signal.

The number of data bytes that can be transmitted over the

serial bus in a single READ or WRITE operation is limited

only by what the master and slave devices can handle.

3. When all data bytes have been read or written, stop conditions

are established. In WRITE mode, the master pulls the data line

high during the tenth clock pulse to assert a STOP condition.

In READ mode, the master device overrides the acknowledge

bit by pulling the data line high during the low period before

the ninth clock pulse. This is known as No Acknowledge.

The master then takes the data line low during the low pe-

riod before the 10th clock pulse, and then high during the

10th clock pulse to assert a STOP condition.

Any number of bytes of data can be transferred over the serial

bus in one operation, but it is not possible to mix read and write

in one operation because the type of operation is determined at

the beginning and cannot subsequently be changed without

starting a new operation.

In the case of the ADT7463, write operations contain either one

or two bytes, and read operations contain one byte and perform

the following functions.

To write data to one of the device data registers or read data from

it, the address pointer register must be set so that the correct data

register is addressed, then data can be written into that register

or read from it. The first byte of a write operation always contains

an address that is stored in the address pointer register. If data

is to be written to the device, then the write operation contains

a second data byte that is written to the register selected by the

address pointer register.

This is illustrated in Figure 7. The device address is sent over

the bus followed by R/W being set to 0. This is followed by two

data bytes. The first data byte is the address of the internal data

register to be written to, which is stored in the address pointer

register. The second data byte is the data to be written to the

internal data register.

Rev. 4 | Page 10 of 52 | www.onsemi.com

Podobny numer części - ADT7463ARQ

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	ADT7463ARQ	719Kb / 52P	dB COOL Remote Thermal Controller and Voltage Monitor REV. 0
ON Semiconductor	ADT7463ARQZ-REEL	732Kb / 50P	Remote Thermal Controller and Voltage Monitor May, 2013 ??Rev. 7

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Podobny opis - ADT7463ARQ

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	ADT7463	719Kb / 52P	dB COOL Remote Thermal Controller and Voltage Monitor REV. 0
Analog Devices	ADT7460	695Kb / 48P	dB COOL Remote Thermal Controller and Fan Controller REV. 0
ON Semiconductor	ADT7476A	541Kb / 69P	Remote Thermal Controller and Voltage Monitor February, 2016 ??Rev. 7
	ADT7463	732Kb / 50P	Remote Thermal Controller and Voltage Monitor May, 2013 ??Rev. 7
	ADT7476	543Kb / 68P	Remote Thermal Controller and Voltage Monitor February, 2016 ??Rev. 10
Analog Devices	ADT7476	1Mb / 72P	dBCool Remote Thermal Controller and Voltage Monitor REV. A
Analog Devices	ADT7468	1,021Kb / 80P	dBCool??Remote Thermal Controller and Voltage Monitor REV. 0
ON Semiconductor	ADT7476A	613Kb / 67P	dBCOOL Remote Thermal Controller and Voltage Monitor May, 2010 ??Rev. 3
	ADM1027	1Mb / 56P	dBCOOL??Remote Thermal Controller and Voltage Monitor May 2010 - Rev. 3
	ADT7466	691Kb / 48P	dBCool짰 Remote Thermal Controller and Voltage Monitor May 2010 ??Rev. 3

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