Texas Instruments TCA9517ADGKR

TCA9517ADGKR Description
The TCA9517ADGKR is a bidirectional buffer with level-shifting capabilities for I²C and SMBus systems. It provides bidirectional voltage-level translation (translation/down-translation) between low voltages (down to 0.9 V) and higher voltages (2.7 V to 5.5 V) in mixed-mode applications. This device enables I²C and SMBus systems to be extended without performance degradation, even during level shifting. The TCA9517ADGKR buffers both the serial data (SDA) and the serial clock (SCL) signals on the I²C bus, thus allowing two buses of up to 400-pF bus capacitance to be connected in an I²C application.

TCA9517ADGKR Features
Two-Channel Bidirectional Buffer I²C Bus and SMBus Compatible Operating Supply Voltage Range of 0.9 V to 5.5 V on the A-side Operating Supply Voltage Range of 2.7 V to 5.5 V on the B-side Voltage-Level Translation From 0.9 V - 5.5 V to 2.7 V - 5.5 V Footprint and Functional Replacement for PCA9515B Active-High Repeater-Enable Input Open-Drain I²C I/O 5.5-V Tolerant I²C and Enable Input Support Mixed-Mode Signal Operation

TCA9517ADGKR Applications
Servers Routers (Telecom Switching Equipment) Industrial Equipment Products with Many I²C Slaves and Long PCB Traces