DESCRIPTION/ORDERING INFORMATION

This dual bidirectional I2C buffer is operational at 2.7 V to 5.5 V.

The PCA9517 is a BiCMOS integrated circuit intended for I2C bus and SMBus systems. It can also provide bidirectional voltage-level translation (up-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 similar bus systems to be extended, without degradation of performance even during level shifting.

FEATURES

• Two-Channel Bidirectional Buffer

• I2C Bus and SMBus Compatible

• Operating Supply Voltage Range of 0.9 V to 5.5 V on A Side

• Operating Supply Voltage Range of 2.7 V to 5.5 V on B Side

• Voltage-Level Translation From 0.9 V to 5.5 V and 2.7 V to 5.5 V

• Footprint and Function Replacement for PCA9515A

• 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

• Accommodates Standard Mode and Fast Mode I2C Devices and Multiple Masters

• Supports Arbitration and Clock Stretching Across Repeater

• Powered-Off High-Impedance I2C Pins

• 400-kHz Fast I2C Bus

• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

• ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)