The TCA9617A is a BiCMOS dual bidirectional buffer intended for I2C bus and SMBus systems. It can provide bidirectional voltage-level translation (up-translation and down-translation) between low voltages (down to 0.8 V) and higher voltages (2.2 V to 5.5 V) 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 550-pF or greater bus capacitance to be connected in an I2C application. This device can also be used to isolate two halves of a bus for voltage and capacitance.
● Two-Channel Bidirectional I2C Buffer
● Support for Standard Mode, Fast Mode (400 kHz), and Fast Mode+ (1 Mhz) I2C Operation
● Operating Supply Voltage Range of 0.8 V to 5.5 V on A-Side
● Operating Supply Voltage Range of 2.2 V to 5.5 V on B-Side
● Voltage-Level Translation From 0.8 V to 5.5 V and 2.2 V to 5.5 V
● Footprint and Function Replacement for TCA9517
● Active-High Repeater-Enable Input
● Open-Drain I2C I/O
● 5.5-V Tolerant I2C and Enable Input Support
● Mixed-Mode Signal Operation
● Lockup-Free Operation
● Support for Clock Stretching and Multiple Master Arbitration Across The Device
● Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
● ESD Protection Exceeds JESD 22
● 4000-V Human-Body Model (A114-A)
● 1500-V Charged-Device Model (C101)
