PCA9517

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community PCA9517 SCPS157E – DECEMBER 2007 – REVISED JUNE 2014 PCA9517 Level-Translating I2C Bus Repeater Not Recommended for New Designs 1 Features 1 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 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) 2 Description 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 (uptranslation/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 lev...