Datasheet > ADT7519_15

ADT7519_15

更新时间： 2024-01-10 02:24:46

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
44页	3247K
描述
SPI-/IC-Compatible, Temperature Sensor, 4-Channel ADC and Quad Voltage Output

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中文翻译

获取价格

数据手册

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ADT7519_15 数据手册

ADT7516/ADT7517/ADT7519

SMBALERT

INT

SMBus/SPI INT/

allows them to do so.

is used in conjunction with

the SMBus general call address.

INT

The ADT7516/ADT7517/ADT7519 INT/

outputs are an

INT

interrupt line for devices that want to trade their ability to

One or more INT/

outputs can be connected to a common

master for an extra pin. The ADT7516/ADT7517/ADT7519 are

SMBALERT

line connected to the master. When the

line is pulled low by one of the devices, the

INT

slave devices and use the SMBus/SPI INT/

to signal the host

INT

device that it wants to talk to. The SMBus/SPI INT/

on the

following procedure occurs as shown in Figure 68:

SMBALERT

ADT7516/ADT7517/ADT7519 is used as an over/under limit

indicator.

is pulled low.

2. Master initiates a read operation and sends the alert

response address (ARA = 0001 100). This general call

address must not be used as a specific device address.

INT

The INT/

outputs of several devices to be wire-AND’ed together when the

INT

pin has an open-drain configuration that allows the

INT/

INT

pin is active low. Use C6 of the Control Configuration 1

INT

3. A device whose INT/

output is low responds to the

INT

output. The

alert response address and the master reads its device

address. As the device address is seven bits long, an LSB of

1 is added. The address of the device is now known and it

can be interrogated in the usual way.

power-up default is active low. The INT/

output can be

disabled or enabled by setting C5 of the Control Configuration 1

INT

The INT/

output becomes active when either the internal

INT

4. If INT/

output of more than one device is low, the one

temperature value, the external temperature value, V_DDvalue, or

any of the AIN input values exceed the values in their

corresponding T_HIGH/V_HIGHor T_LOW/V_LOWregisters. The

with the lowest device address has priority in accordance

with normal SMBus specifications.

5. When the ADT7516/ADT7517/ADT7519 have responded

INT

INT/

output goes inactive again when a conversion result

INT

to the alert response address, they reset their INT/

has the measured value back within the trip limits and when the

status register associated with the out-of-limit event is read. The

two interrupt status registers show the event that caused the

output, provided that the condition that caused the out-of-

limit event no longer exists and that the status register

associated with the out-of-limit event is read. If the

INT

INT/

The INT/

can be connected to a voltage different from V_DD, provided the

INT

pin to go active.

SMBALERT

line remains low, the master sends the ARA

again. It continues to do this until all devices whose

INT

output requires an external pull-up resistor. This

SMBALERT

outputs were low have responded.

maximum voltage rating of the INT/

output pin is not

exceeded. The value of the pull-up resistor depends on the

application but should be large enough to avoid excessive sink

MASTER

RECEIVES

SMBALERT

INT

currents at the INT/

output because they can heat the chip

ALERT RESPONSE

ACK

START

RD ACK DEVICE ADDRESS

STOP

and affect the temperature reading.

ADDRESS

SMBUS ALERT RESPONSE

MASTER SENDS

ARA AND READ

COMMAND

DEVICE SENDS

ITS ADDRESS

INT

The INT/

when the SMBus/I²C interface is selected. It is an open-drain

INT

pin behaves the same way as an SMBus alert pin

INT

SMBALERT

ARA

Figure 68. INT/

Responds to

output and requires a pull-up to V_DD. Several INT/

can be wire-AND’ed together, so that the common line goes low

INT

outputs

MASTER

ACK

MASTER

NACK

DEVICE ACK

MASTER

if one or more of the INT/

outputs goes low. The polarity of

pin must be set active low for a number of outputs

to be wire-AND’ed together.

INT

RECEIVES

SMBALERT

INT

the INT/

ALERT RESPONSE

ADDRESS

DEVICE

ADDRESS

ACK

START

RD ACK

ACK

PEC

STOP

MASTER SENDS

ARA AND READ

COMMAND

SMBALERT

function.

The INT/

Slave devices on the SMBus cannot normally signal to the

SMBALERT

output can operate as an

DEVICE SENDS DEVICE SENDS

ITS ADDRESS ITS PEC DATA

INT

SMBALERT

ARA

Figure 69. INT/

Responds to

master that they want to talk, but the

function

with Packet Error Checking (PEC)

Rev. B | Page 42 of 44

1...39 40 414243 44

中文翻译

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与ADT7519_15相关器件

型号	品牌	获取价格	描述	数据表
ADT7519ARQ	ADI	获取价格	SPI/I2C Compatible, Temperature Sensor, Four Channel ADC and Quad Voltage Output DAC
ADT7519ARQ-REEL	ADI	获取价格	SPI/I2C Compatible, Temperature Sensor, Four Channel ADC and Quad Voltage Output DAC
ADT7519ARQ-REEL7	ADI	获取价格	SPI/I2C Compatible, Temperature Sensor, Four Channel ADC and Quad Voltage Output DAC
ADT7519ARQZ	ADI	获取价格	SPI-/I2C-Compatible, Temperature Sensor,4-Channel ADC and Quad Voltage Output
ADT7519ARQZ1	ADI	获取价格	SPI/I2C Compatible, Temperature Sensor, Four Channel ADC and Quad Voltage Output DAC
ADT7519ARQZ1-REEL	ADI	获取价格	SPI/I2C Compatible, Temperature Sensor, Four Channel ADC and Quad Voltage Output DAC
ADT7519ARQZ1-REEL7	ADI	获取价格	SPI/I2C Compatible, Temperature Sensor, Four Channel ADC and Quad Voltage Output DAC
ADT7519ARQZ-REEL	ADI	获取价格	SPI-/I2C-Compatible, Temperature Sensor,4-Channel ADC and Quad Voltage Output
ADT7519ARQZ-REEL7	ADI	获取价格	SPI-/I2C-Compatible, Temperature Sensor,4-Channel ADC and Quad Voltage Output
ADT75ARM	ADI	获取价格	+-1∑C Accurate, 12-Bit Digital Temperature Se

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