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TCA9517DR
+NomenclatureIC TRNSLTR BIDIRECTIONAL 8SOIC
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FabricantTexas Instruments
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Pièce fabricant #TCA9517DR
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Package SOIC-8
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En stock2525
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Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | TCA |
| ProductStatus | Active |
| TranslatorType | Voltage Level |
| ChannelType | Bidirectional |
| NumberofCircuits | 1 |
| ChannelsperCircuit | 2 |
| Voltage-VCCA | 0.9 V ~ 5.5 V |
| Voltage-VCCB | 2.7 V ~ 5.5 V |
| OutputType | Open Drain |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Présentation
Description
A key feature is its ability to handle voltage level translation between 0.9V and 5.5V on one side (A-side) to 2.7V to 5.5V on the other side (B-side), accommodating mixed-voltage environments. This flexibility ensures compatibility between newer low-voltage ICs and older devices. The device also supports hot-swapping and includes a rise-time accelerator for each side to improve signal integrity.
The TCA9517DR is suited for applications in industrial and automotive systems, consumer electronics, and any system that requires extended I2C communication across different voltage levels. It is offered in a space-saving 8-pin SOIC package.
Equivalent
1. PCA9517 from NXP Semiconductors
2. PCA9515A from NXP Semiconductors
3. P82B96 from NXP Semiconductors
4. LTC4311 from Analog Devices
5. ISL33003 from Renesas Electronics
These ICs function similarly as I2C bus repeaters or buffers, helping to extend the range and improve the robustness of I2C communications. Always check the datasheets to ensure compatibility with specific requirements.
Features
1. Voltage Level Translation: It supports two different voltage levels, allowing for communication between I2C devices operating at different voltage levels, typically from 0.9V to 5.5V.
2. Bidirectional Data Transfer: The repeater allows for bidirectional data transfer on the I2C bus, facilitating seamless communication between master and slave devices.
3. High-Speed Operation: It supports standard-mode and fast-mode I2C devices, with data transfer rates up to 1 MHz.
4. Enable Pin: An active-low enable pin allows the user to disable the device, conserving power and providing greater control over the bus.
5. Noise Filtering: The device has noise filtering on the SDA and SCL lines to improve data integrity.
6. Isolation of Capacitance: It isolates bus capacitance, enhancing the ability to drive longer cables or to connect more devices.
7. Package: It comes in a small-outline package (SOIC) for compact PCB designs.
Overall, the TCA9517DR is ideal for systems requiring voltage translation and bus signal integrity across different I2C devices.
Pinout
1. VCCA (Pin 1): Supply voltage for A-side.
2. A1 (Pin 2): Serial data I/O for A-side.
3. A2 (Pin 3): Serial clock I/O for A-side.
4. GND (Pin 4): Ground reference.
5. B1 (Pin 5): Serial data I/O for B-side.
6. B2 (Pin 6): Serial clock I/O for B-side.
7. VCCB (Pin 7): Supply voltage for B-side.
8. EN (Pin 8): Enable pin for the device.
The TCA9517DR acts as a level-shifter and buffer for I2C signals, allowing for interfacing between I2C buses operating at different voltage levels. The device helps in extending the bus length and supports hot swapping, making it suitable for applications requiring communication across varying logic levels or extended distances.