TCA9517DR

TEXAS INSTRUMENTS  TCA9517DR  专用接口, I2C, SMBus, I2C总线与SMBus总线系统应用程序, 服务器, 电信, 900 mV, 5.5 V, SOIC, 8 引脚

The 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.

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I²C Bus and SMBus Compatible

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Footprint and functional replacement for PCA9515B

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Active-high repeater-enable input

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Open-drain I²C I/O

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5.5V Tolerant I²C and enable input support mixed-mode signal operation

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Accommodates standard-mode and fast-mode I²C devices and multiple masters

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High-impedance I²C pins when powered-off

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Latch-up performance exceeds 100 mA per JESD 78, class II

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ESD Protection exceeds JESD 22

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Green product and no Sb/Br

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.