TCA8418
Features
- 1 Operating Power-Supply Voltage Range of 1.65-V to 3.6-V
- Supports 80 Buttons With Use of 18 GPIOs
- Supports QWERTY Keypad Operation Plus GPIO
Expansion
- Low Standby (Idle) Current Consumption: 3 μA
- Supports 1-MHz Fast Mode Plus I2C Bus
- 10 Byte FIFO to Store 10 Key Presses and
Releases
- Open-Drain Active-Low Interrupt Output
- Integrated Debounce Time of 50 μs
- Schmitt-Trigger Action Allows Slow Input
Transition and Better Switching Noise Immunity at the SCL and SDA Inputs: Typical Vhys at 1.8 V is 0.18 V
- Latch-Up Performance Exceeds 200 m A Per JESD 78, Class II
- ESD Protection Exceeds JESD 22 on all 18 GPIO Pins and non GPIO pins
- 2000-V Human Body Model (A114-A)
- 1000-V Charged Device Model (C101)
2 Applications
- Smart Phones
- Tablets
- HMI Panels
- GPS Devices
- MP3 Players
- Digital Cameras
3 Description
The TCA8418 is a keypad scan device with integrated ESD protection. It can operate from 1.65 V to 3.6 V and has 18 general purpose inputs/outputs...
