Overview
The TCA9617ADGKR is a level-translating I2C bus repeater and buffer produced by Texas Instruments. This device is designed to extend the range of I2C communication lines, isolate bus segments, and drive multiple I2C devices on the same bus. It supports bidirectional buffering for the SCL and SDA signals, allowing for the connection of two buses with minimal signal degradation. The TCA9617ADGKR is particularly useful in applications requiring high-speed data transfer and voltage-level translation between different logic levels.
Key Specifications
| Specification | Value |
|---|---|
| Package/Case | VSSOP (DGK)-8 |
| Operating Supply Voltage Range (A-side) | 0.8V to 5.5V |
| Operating Supply Voltage Range (B-side) | 2.2V to 5.5V |
| I2C Clock Frequency | Up to 1 MHz (Fast Mode+), 400 kHz (Fast Mode) |
| Voltage-Level Translation | From 0.8V to 5.5V and 2.2V to 5.5V |
| ESD Protection | 4000V Human-body model, 1500V Charged-device model |
| Ambient Temperature Range | -40°C to 85°C |
| Pin Count | 10 pins |
Key Features
- Two-channel bidirectional I2C buffer
- Support for standard mode, fast mode (400kHz), and fast mode+ (1MHz) I2C operation
- High-speed data transfer on SDA/SCL pins
- Voltage-level translation from 0.8V to 5.5V and 2.2V to 5.5V
- Active-high repeater-enable input and open-drain I2C I/O
- 5.5V tolerant I2C and enable input support
- Lockup-free operation and support for clock stretching and multiple controller arbitration
- Robust communication for noisy environments
Applications
- Industrial control systems
- Display control
- Consumer electronics products
- Servers and routers (telecom switching equipment)
- Industrial equipment and automotive electronics
- Products with many I2C targets and/or long PCB traces
Q & A
- What is the primary function of the TCA9617ADGKR?
The TCA9617ADGKR is a level-translating I2C bus repeater and buffer designed to extend the range of I2C communication lines and isolate bus segments.
- What are the operating supply voltage ranges for the A-side and B-side of the TCA9617ADGKR?
The A-side operates from 0.8V to 5.5V, and the B-side operates from 2.2V to 5.5V.
- What are the supported I2C clock frequencies for the TCA9617ADGKR?
The device supports standard mode, fast mode (400kHz), and fast mode+ (1MHz) I2C operation.
- What kind of voltage-level translation does the TCA9617ADGKR support?
The device supports voltage-level translation from 0.8V to 5.5V and 2.2V to 5.5V.
- What is the ESD protection rating for the TCA9617ADGKR?
The device has an ESD protection rating of 4000V Human-body model and 1500V Charged-device model.
- What is the ambient temperature range for the TCA9617ADGKR?
The ambient temperature range is -40°C to 85°C.
- How many pins does the TCA9617ADGKR have?
The device has 10 pins.
- What are some common applications for the TCA9617ADGKR?
Common applications include industrial control systems, display control, consumer electronics, servers, routers, and industrial equipment.
- Does the TCA9617ADGKR support clock stretching and multiple controller arbitration?
Yes, the device supports clock stretching and multiple controller arbitration across the device.
- Is the TCA9617ADGKR suitable for noisy environments?
Yes, the device is designed to provide robust communication in noisy environments.
