SLVC601 — TCA8418E-EVM Firmware and GUI
지원되는 제품 및 하드웨어
제품
I2C 및 SPI GPIO(범용 I/O)
- TCA8418E — 인터럽트, 리셋 및 80키를 지원하는 18비트 1.65~3.6V 1MHz I2C/SMBus 키패드 스캐너
하드웨어 개발
평가 보드
- TCA8418E-EVM — TCA8418E-EVM ESD 보호가 통합된 I2C 제어 키패드 스캔 IC 평가 모듈
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The TCA8418E 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 (GPIO) that can be used to support up to 80 keys via the I2C interface.
The TCA8418E saves power and bandwidths since it handles the keypad scanning algorithms. The TCA8418E is also ideal for usage with processors that have limited GPIOs.
The key controller debounces inputs and maintains a 10 byte FIFO of key-press and release events which can store up to 10 keys with overflow wrap capability. An interrupt (INT) output can be configured to alert key presses and releases either as they occur, or at maximum rate. A CAD_INT pin is included to indicate the detection of CTRL-ALT-DEL (essentially, 1, 11, 21) key press action.
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TCA8418E I2C Controlled Keypad Scan IC With Integrated ESD Protection datasheet (Rev. C) | PDF | HTML | 2015/10/28 |
| Application note | Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) | PDF | HTML | 2024/07/03 | |
| Selection guide | I2C Infographic Flyer | 2015/12/03 | ||
| Application note | Understanding the I2C Bus | PDF | HTML | 2015/06/30 | |
| Application note | Maximum Clock Frequency of I2C Bus Using Repeaters | 2015/05/15 | ||
| Application note | I2C Bus Pull-Up Resistor Calculation | PDF | HTML | 2015/02/13 |
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The TCA8418E-EVM is an evaluation board designed to demonstrate the key scanning functionality of the TCA8418E keypad scan IC. The EVM comes with 9 buttons configured in a row/column matrix for easy testing. In addition, the 10x2 receptacle allows the customer to expand the functionality of the (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YFP) | 25 | Ultra Librarian |
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.