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IS31SE5120A - 24-CH PROGRAMMABLE CAPACITIVE TOUCH SENSOR

Datasheet Summary

Description

IS31SE5120A is an ultra-low-power, 24-channel capacitive touch controller.

The controller allows sleep mode (under 10uA) and uses auto-detection for wakeup.

It also provides a shield output to increase moisture immunity.

Features

  • 24-channel capacitive touch controller with readable key value.
  • Touch-related threshold settings for individual key.
  • Optional multiple-key function.
  • GPIO toggle/invert function.
  • Automatic calibration.
  • Individual key calibration.
  • Interrupt output with auto-clear and repeating.
  • Auto sleep mode for extremely low power.
  • Keys wake up from sleep mode.
  • Shield output shared with touch key channels.
  • Buzzer/Melody Generator shared with touch key cha.

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Datasheet preview – IS31SE5120A

Datasheet Details

Part number IS31SE5120A
Manufacturer Lumissil
File Size 754.90 KB
Description 24-CH PROGRAMMABLE CAPACITIVE TOUCH SENSOR
Datasheet download datasheet IS31SE5120A Datasheet
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IS31SE5120A 24-CH PROGRAMMABLE CAPACITIVE TOUCH SENSOR GENERAL DESCRIPTION IS31SE5120A is an ultra-low-power, 24-channel capacitive touch controller. The controller allows sleep mode (under 10uA) and uses auto-detection for wakeup. It also provides a shield output to increase moisture immunity. The built-in hardware monitor and calibration feature for the environment is to prevent false triggers. A host MCU is required to communicate with IS31SE5120A. An on-chip I²C slave controller with 400kHz capability serves as the communication port for the host MCU. An interrupt, INT, can be configured and it is generated when a touch trigger event occurs. The trigger event can be configured by setting the interrupt register. IS31SE5120A can support proximity sensing.
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