SCPA070 june   2023 TCAL6408 , TCAL6416 , TCAL9538 , TCAL9539 , TCAL9539-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Programmable Output Drive Strength
  6. 3 Programmable Pull-Up or Pull-Down Resistors
  7. 4 Latchable Inputs
  8. 5 Maskable Interrupt
  9. 6 Interrupt Status Register
  10. 7 Programmable Open-Drain and Push-Pull Outputs
  11. 8 Benefits of Using TCAL I/O Expanders Versus TCA I/O Expanders
  12. 9 Summary
  13. 10References

9 Summary

TCAL Agile I/O expanders offer a wide range of capabilities on the GPIO pins. These capabilities include programmable output drive strength, integrated pull-up and pull-down resistors, latchable inputs, maskable interrupts, interrupt status register, and programmable options for open-drain and push-pull outputs. TCAL devices are also pin-to-pin compatible with the former TCA variant of I/O expanders. TCAL's are direct upgrades over the TCA's by offering agile I/O capability, low supply voltage support (1.08 V to 3.6 V), all while supporting faster data rates (<1 MHz) and better cost designs due to newer process technology.