TCA9517DGKR
Active2-BIT LEVEL-TRANSLATING 400-KHZ I2C/SMBUS BUFFER/REPEATER WITH POWERED-OFF HIGH-IMPEDANCE
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TCA9517DGKR
Active2-BIT LEVEL-TRANSLATING 400-KHZ I2C/SMBUS BUFFER/REPEATER WITH POWERED-OFF HIGH-IMPEDANCE
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Technical Specifications
Parameters and characteristics for this part
| Specification | TCA9517DGKR |
|---|---|
| Channel Type | Bidirectional |
| Channels per Circuit | 2 |
| Mounting Type | Surface Mount |
| Number of Circuits | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | Open Drain |
| Package / Case | 8-MSOP, 8-TSSOP |
| Package / Case | 3 mm |
| Package / Case [custom] | 0.118 in |
| Translator Type | Voltage Level |
| Voltage - VCCA [Max] | 5.5 V |
| Voltage - VCCA [Min] | 0.9 V |
| Voltage - VCCB [Max] | 5.5 V |
| Voltage - VCCB [Min] | 2.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.79 | |
| 10 | $ 1.14 | |||
| 25 | $ 0.97 | |||
| 100 | $ 0.77 | |||
| 250 | $ 0.68 | |||
| 500 | $ 0.62 | |||
| 1000 | $ 0.57 | |||
| Digi-Reel® | 1 | $ 1.79 | ||
| 10 | $ 1.14 | |||
| 25 | $ 0.97 | |||
| 100 | $ 0.77 | |||
| 250 | $ 0.68 | |||
| 500 | $ 0.62 | |||
| 1000 | $ 0.57 | |||
| Tape & Reel (TR) | 2500 | $ 0.52 | ||
| 5000 | $ 0.49 | |||
| 7500 | $ 0.47 | |||
| 12500 | $ 0.45 | |||
| 17500 | $ 0.44 | |||
| Newark | Each (Supplied on Cut Tape) | 1 | $ 1.36 | |
| 10 | $ 1.31 | |||
| 25 | $ 1.24 | |||
| 50 | $ 1.19 | |||
| 100 | $ 1.13 | |||
| 250 | $ 1.10 | |||
| 500 | $ 1.07 | |||
| 1000 | $ 1.05 | |||
| Texas Instruments | LARGE T&R | 1 | $ 0.84 | |
| 100 | $ 0.65 | |||
| 250 | $ 0.48 | |||
| 1000 | $ 0.34 | |||
Description
General part information
TCA9517-Q1 Series
The TCA9517A 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 (down to 0.9V) and higher voltages (2.7V 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 TCA9517A buffers both the serial data (SDA) and the serial clock (SCL) signals on the I2C bus, thus allowing two buses of up to 400pF 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 over-voltage tolerant to 5.5V, even when the device is unpowered (VCCB and/or VCCA = 0V).
Documents
Technical documentation and resources
