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TCA9517 Datasheet PDF


Part Number TCA9517
Manufacturer Texas Instruments
Title Level-Shifting I2C Bus Repeater
Description The TCA9517 is a bidirectional buffer with level shifting capabilities for I2C and SMBus systems. It provides bidirectional voltage-level translat...
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 - 5.5 V to 2.7 V - 5.5 V
• Footprint and Functional Replacement for PCA9...

File Size 1.04MB
Datasheet TCA9517 PDF File








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TCA9511A : The TCA9511A is a hot-swappable I2C bus buffer that supports I/O card insertion into a live backplane without corruption of the data and clock lines. Control circuitry prevents the backplane-side I2C lines (in) from being connected to the card-side I2C lines (out) until a stop command or bus idle condition occurs on the backplane without bus contention on the card. When the connection is made, this device provides bidirectional buffering, keeping the backplane and card capacitances isolated. During insertion, the SDA and SCL lines are pre-charged to 1 V to minimize the current required to charge the parasitic capacitance of the device. When the I2C bus is idle, the TCA9511A can be put into.

TCA9517A : The TCA9517A is a bidirectional buffer with level shifting capabilities for I2C and SMBus systems. It provides 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 SMBus systems to be extended without degradation of performance, even during level shifting. The TCA9517A buffers both the serial data (SDA) and the serial clock (SCL) signals on the I2C bus, thus allowing two buses of up to 400-pF bus capacitance to be connected in an I2C application. The TCA9517A has two types of drivers: A-side drivers and B-side drivers. All inputs and I/Os are o.




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