TCA9617B
- Two-channel bidirectional I2C buffer
- Support for standard mode, fast mode (400kHz), and fast mode+ (1MHz) I2C operation
- Operating supply voltage range of 0.8V to 5.5V on A-side
- Operating supply voltage range of 2.2V to 5.5V on B-side
- Voltage-level translation from 0.8V to 5.5V and 2.2V to 5.5V
- Footprint and function replacement for TCA9517
- Active-high repeater-enable input
- Open-drain I2C I/O
- 5.5V Tolerant I2C and enable input support
- Lockup-free operation
- Powered-off high-impedance I2C bus pins
- Support for clock stretching and multiple controller arbitration across the device
- Latch-up performance exceeds 100mA per JESD 78, class II
- ESD protection exceeds JESD 22
- 4000V Human-body model
- 1500V Charged-device model
The TCA9617B is a BiCMOS dual bidirectional buffer intended for I2C bus and SMBus systems. The device provides bidirectional voltage-level translation (up-translation and down-translation) between low voltages (down to 0.8V) and higher voltages(2.2V to 5.5V) in mixed-mode applications. This device enables I2C and similar bus systems to be extended, without degradation of performance even during level shifting.
The TCA9617B buffers both the serial data (SDA) and the serial clock (SCL) signals on the I2C bus, allowing two buses of 550pF to be connected in an I2C application. This device can also be used to separate two halves of a bus for voltage and capacitance.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TCA9617B Level-Translating FM+ I2 C Bus Repeater datasheet (Rev. F) | PDF | HTML | 2026. 3. 20 | |
| 애플리케이션 노트 | Preventing ICT-Induced Electrical Overstress on TCA9617B I/O Ports | PDF | HTML | 2026. 6. 5 | ||
| 애플리케이션 노트 | Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) | PDF | HTML | 2024. 7. 3 | ||
| 애플리케이션 노트 | Why, When, and How to use I2C Buffers | 2018. 5. 23 | |||
| 기술 문서 | Intro to I2C: what the Internet doesn’t tell you | PDF | HTML | 2016. 11. 24 | ||
| 애플리케이션 노트 | Choosing the Correct I2C Device for New Designs | PDF | HTML | 2016. 9. 7 | ||
| 선택 가이드 | I2C Infographic Flyer | 2015. 12. 3 | |||
| 기술 문서 | How to simplify I2C tree when connecting multiple slaves to an I2C master | PDF | HTML | 2015. 10. 15 | ||
| 애플리케이션 노트 | Understanding the I2C Bus | PDF | HTML | 2015. 6. 30 | ||
| 애플리케이션 노트 | Maximum Clock Frequency of I2C Bus Using Repeaters | 2015. 5. 15 | |||
| 애플리케이션 노트 | I2C Bus Pull-Up Resistor Calculation | PDF | HTML | 2015. 2. 13 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
I2C-DESIGNER — I2C 디자이너 툴
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VSSOP (DGK) | 8 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.