Analog.com
Analog
Dialogue
Wiki
English
Analog.com
Analog
Dialogue
Wiki
简体中文
EngineerZone
Site
Search
User
Site
Search
User
EngineerZone
Search
Log in
Site
Search
Log in
Home
Blogs ⌵
EngineerZone Spotlight
The Engineering Mind
Browse ⌵
All Groups
All Members
Support ⌵
3D ToF Depth Sensing
Amplifiers
Analog Microcontrollers
Audio
Clock and Timing
Data Converters
Design Tools and Calculators
Direct Digital Synthesis (DDS)
Embedded Vision Sensing
Energy Monitoring and Metering
FPGA Reference Designs
Industrial Ethernet
Interface and Isolation
Low Power RF Transceivers
MEMS Inertial Sensors
Motor Control Hardware Platforms
Optical Sensing
Power By Linear
Processors and DSP
Reference Circuits
RF and Microwave
Switches/Multiplexers
Temperature Sensors
Video
Wide Band RF Transceivers
Wireless Sensor Networks Reference Library
My EZ
More
Cancel
主页
浏览 ⌵
收件箱
个人设置
会员
专区列表
论坛专区 ⌵
放大器专区
精密转换器专区
音频专区
ADE电能计量专区
MEMS和传感器专区
接口和隔离专区
Power 中文专区
ADUC微处理器专区
锁相环专区
开关和多路复用器专区
温度传感器
基准电压源专区
资源库
论坛使用指南
技术支持参考库
在线研讨会
论坛社群活动
论坛激励活动
More
Cancel
Temperature Sensors
Documents
ADT7460: Address selection
Q&A
Discussions
Documents
File Uploads
Video/Images
Tags
Managers
More
Cancel
New
Temperature Sensors requires membership for participation - click to join
Documents
/SMBALERT Anomaly
AD580: Current source
AD580: ESD data Report
AD581SH Au thinkness on leads
AD584 dropout voltage measurement
AD590: How to measure temperature of a steel plate
AD590: Long term drift
ad590: Maximum power dissipation
AD590: Measuring the current output
AD590: Which side of ceramic flatpack of AD590JF should be connected to the object whose temperature I wish to measure?
AD590S / AD590 Long Term drift
AD595: A vs C grade accuracy
AD595: Accurate signal conditioner
AD595: N type thermal couple application
AD595: temperature to frequency converter
AD595: Trim the calibration error
AD595: Why are there two different operating temperatures listed in datasheet for the same part number?
AD595AQ: Temperature measurement issues
AD597: Gain adjustment
ADT70: Looking for a signal conditioning IC that converts a PT1000 RTD signal to an analog voltage
ADT7310 IBIS mode
ADT7310 questions
ADT7310: response time
ADT7310TRZ: Power dissapation
ADT7320, ADT7420
ADT7320, ADT7420 - Communication with ADT7x20
ADT7320, ADT7420 - Requirements to setup the ADT7320/ADT7420
ADT7320, ADT7420 - Temperature reading options
ADT7410 Status Register's Tlow and Thigh bits are never set to '!' as expected?
ADT7420 reading under Linux
ADT7420 test procedure
ADT7460: Address selection
ADT7461: Input resistance vs temperature error
ADT7470: Can I perform a temperature readback of ADT7470 while in automatic fan control mode?
C code for AN-1250
Can I obtain the AD592C's die pads xy coordinates for wire bonding in an LTCC module?
FAQ: Are the following parts interchangeable?
FAQ: Temperature sensor evaluation boards availability
How ADT7420 typical values are measured
LM26 alternative
Maximum Load of AD590
NIST traceable calibration certification for ADT7320, ADT7420
Solutions for temperature measurement with AD595
temperature range of TMP35
Temperature Sensors Support Community
What is gold plating thickness used on leadframe of AD590JF?
What is the lifetime of the ADT7320?
ADT7460: Address selection
Q
I would like to use several ADT7460 devices on one board. therefore, I would
like to assign different addresses to these devices. The datasheet says that to
assign an address, the ADDRESS_ENABLE pin must be pulled low on power-up. How
long must this pin be pulled low before it can be released again?
A
After power-on reset, the ADT7463 enters Address Select Mode. In Address Select
Mode, /ADDR_EN and ADDR_SEL pins directly drive the SMBus Address Register as a
transparent latch.
The SMBus address is latched on the 1st. valid SMBus transaction which
addresses the ADT7463. More precisely, the SMBus address is latched on the low
to high transition at the beginning of the 8th SCL pulse, when the serial bus
address byte matches with the selected slave address set via the /ADDR_EN and
ADDR_SEL pins. When the SMBus address is latched, the ADT7463 then exits
Address Select Mode and any changes made to /ADD_EN or ADDR_SEL will have no
effect.
So in fact there are two points where the state /ADDR_EN and ADDR_SEL pins is
critical. The pins must be stable during the serial bus address byte and on the
8th SCL pulse.
We recommend that the state of the /ADDR_EN and ADDR_SEL pins are held constant
during all SMBus transactions until after the first valid read/write to the
ADT7463.
Of course, holding the ADDR_EN and ADDR_SEL pins constant after power up
becomes more important if you have multiple devices on the SMBus and the first
write to the ADT7463 after power up occurs after SMBus reads and writes to
other devices. The SMBus address of the ADT7463 is not latched until after the
first read/write to the part, so it is important that the ADDR_EN and ADDR_SEL
pins are correctly driven during bus activity which addresses other devices.
adt7460
Share
History
More
Cancel
Comments
Related