Texas Instruments TCA9517DR Specialized Interface I2C Smbus Bus & Systems Applications Servers Telecom 900 mV

The TCA9517DR is a bidirectional Buffer with level shifting capabilities for I²C and SMBus systems. It provides bidirectional voltage-level translation (up-translation/down-translation) between low voltages and higher voltages (2.7 to 5.5V) in mixed-mode applications. This device enables I²C and SMBus systems to be extended without degradation of performance, even during level shifting. The TCA9517 buffers both the serial data and the serial clock signals on the I²C bus, thus allowing two buses of up to 400pF bus capacitance to be connected in an I²C application. It has two types of drivers: A-side drivers and B-side drivers. All inputs and I/Os are over-voltage tolerant to 5.5 V, even when the device is unpowered (VCCB and/or VCCA = 0 V). The type of buffer design on the B-side prevents it from being used in series with devices which use static voltage offset.

• I²C Bus and SMBus Compatible
• Footprint and functional replacement for PCA9515B
• Active-high repeater-enable input
• Open-drain I²C I/O
• 5.5V Tolerant I²C and enable input support mixed-mode signal operation
• Accommodates standard-mode and fast-mode I²C devices and multiple masters
• High-impedance I²C pins when powered-off
• Latch-up performance exceeds 100 mA per JESD 78, class II
• ESD Protection exceeds JESD 22
• Green product and no Sb/Br

Applications

Industrial, Communications & Networking

Warnings Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Other details

Brand	TEXAS INSTRUMENTS
Part Number	TCA9517DR
Quantity	Each (Supplied on Cut Tape)

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