Other Parts Discussed in Thread: TM4C123GH6PM , TCA9535 , TCA6424A 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers…
The logic is an IO expander (U72) and a buffer (U156). The IO expander defaults to an input, so the IO is floating. The pull-down resistor (R810) sets the default value to low. The IO expander is access via I2C bus. The IO can be changed to an output…
U7 - TCA9535
Check
Status?
Comments
Within Supply Voltage Range?
Good
PCA Devices - 2.3 V - 5.5 V
TCA Devices - 1.65 V - 5.5 V
TCAL Devices - 1.08 V - 3.6 V
Local Decoupling Capacitors
Good
Generally, a 0.1-uF capacitor…
Other Parts Discussed in Thread: TCA6424A 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/interface-group/interface/f/interface-forum/566408/tca6424a-input-damage-on-io-expander-evm 部件号: TCA6424A 大家好,
我正在使用IO扩展器EVM…