Packaging information
| Package | Pins VSSOP (DGK) | 8 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 2,500 | LARGE T&R |
Features for the TCA9617A
- 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
- 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
Description for the TCA9617A
The TCA9617A 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 TCA9617A 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.