TLC139MJB datasheet by Texas Instruments

TLC139MJB Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with TLC139MJB?
  The maximum clock frequency for TLC139MJB is 3 MHz. However, it's recommended to use a clock frequency of 2 MHz or less to ensure reliable operation.
• How do I handle the output voltage swing of TLC139MJB?
  The output voltage swing of TLC139MJB is dependent on the supply voltage (VCC) and the load impedance. To ensure a full output voltage swing, use a load impedance of 1 kΩ or higher and a supply voltage of 5 V or higher.
• Can I use TLC139MJB with a 3.3 V supply voltage?
  Yes, TLC139MJB can operate with a 3.3 V supply voltage. However, the output voltage swing may be reduced, and the device may not meet the specified accuracy and linearity. It's recommended to use a 5 V supply voltage for optimal performance.
• How do I interface TLC139MJB with a microcontroller?
  TLC139MJB can be interfaced with a microcontroller using a serial interface (SPI or I2C). The microcontroller can send commands to the TLC139MJB to select the input channel, start the conversion, and read the output data. The specific interface protocol depends on the microcontroller and the application requirements.
• What is the power consumption of TLC139MJB?
  The power consumption of TLC139MJB depends on the operating frequency, supply voltage, and mode of operation. In normal operation, the typical power consumption is around 15 mW. In shutdown mode, the power consumption is reduced to around 1 μW.