TCA9801DGKT

Translators, Level Shifters Overview

The TCA9801DGKT is a bidirectional translating I2C bus buffer and repeater manufactured by Texas Instruments. It operates with a VCCA supply range of 800 mV to 3.6 V and a VCCB supply range of 1.65 V to 3.6 V, supporting maximum clock frequencies up to 400 kHz. The device features two channels within an 8-VSSOP package, exhibiting propagation delays of 25 ns and 105 ns. It draws a typical operating current of 23 uA and functions reliably across temperatures from -40°C to +85°C.

Translators, Level Shifters Feature Summary

• Provides bidirectional voltage level translation between low-voltage (0.8V) and standard-voltage (1.65V+) I2C/SMBus domains
• Functions as a signal buffer and repeater to extend bus distance and increase drive capability
• Supports open-drain input and output configurations for standard I2C compatibility

Translators, Level Shifters Applications

• Interfacing low-voltage microcontrollers with higher-voltage I2C peripherals
• Extending I2C bus length in embedded systems
• Level shifting between different voltage domains in mixed-signal circuits

Translators, Level Shifters Procurement Notes

Verify the specific suffix 'DGKT' corresponds to the VSSOP-8 package and tape-and-reel orientation. Confirm RoHS compliance status and manufacturing date codes against current datasheets. Ensure the supplier provides original manufacturer documentation to validate authenticity and traceability.

Translators, Level Shifters Selection Notes

Select this component when interfacing 0.8V logic with 1.65V or higher I2C buses requiring buffering. Compare propagation delay specifications against system timing requirements. Consider channel count and package size relative to PCB space constraints. Verify power supply ranges match the target application's voltage rails.

Translators, Level Shifters Part Context

Part of the TCA980x series of I2C bus buffers and repeaters. Designed for applications requiring voltage translation and signal integrity improvement on I2C/SMBus networks. Shares functional similarities with other devices in the family but differs in specific electrical parameters and pin configurations.

Translators, Level Shifters Replacement Considerations

TCA9800DGKR is a parameter-equivalent alternative within the same family. Verify pinout compatibility and specific electrical characteristics before substitution.