產品規格表
PCA9306
- 2-Bit bidirectional translator for SDA and SCL lines in mixed-mode I 2C Applications
- I 2C and SMBus compatible
- Less than 1.5-ns maximum propagation delay to accommodate standard-mode and fast-mode I 2C devices and multiple controllers
- Allows voltage-level translation between
- 1.2-V V REF1 and 1.8-V, 2.5-V, 3.3-V, or 5-V V REF2
- 1.8-V V REF1 and 2.5-V, 3.3-V, or 5-V V REF2
- 2.5-V V REF1 and 3.3-V or 5-V V REF2
- 3.3-V V REF1 and 5-V V REF2
- Provides bidirectional voltage translation with no direction pin
- Low 3.5-Ω ON-state resistance between input and output ports provides less signal distortion
- Open-drain I 2C I/O ports (SCL1, SDA1, SCL2, and SDA2)
- 5-V Tolerant I 2C I/O ports to support mixed-mode signal operation
- High-impedance SCL1, SDA1, SCL2, and SDA2 pins for EN = low
- Lockup-free operation for isolation when EN = low
- Flow-through pinout for ease of printed-circuit-board trace routing
- Latch-up performance exceeds 100 mA Per JESD 78, class II
- ESD protection exceeds JESD 22
- 2000-V Human-body model (A114-A)
- 1000-V Charged-device model (C101)
The PCA9306 device is a dual bidirectional I 2C and SMBus voltage-level translator with an enable (EN) input, and is operational from 1.2-V to 3.3-V V REF1 and 1.8-V to 5.5-V V REF2.
The PCA9306 device allows bidirectional voltage translations between 1.2 V and 5 V, without the use of a direction pin. The low ON-state resistance (R ON) of the switch allows connections to be made with minimal propagation delay. When EN is high, the translator switch is ON, and the SCL1 and SDA1 I/O are connected to the SCL2 and SDA2 I/O, respectively, allowing bidirectional data flow between ports. When EN is low, the translator switch is off, and a high-impedance state exists between ports.
In addition to voltage translation, the PCA9306 device can be used to isolate a 400-kHz bus from a 100-kHz bus by controlling the EN pin to disconnect the slower bus during fast-mode communication.
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開發板
PCA9306EVM — PCA9306 I2C 轉換器評估模組
This EVM can be used to evaluate the PCA9306 product in the DCU package. The I2C buses are easily accessed via SDA_1, SCL_1, SDA_2, and SCL_2 test points, and symmetrically laid out for optimal performance. All IC signals are available through test point connections.
使用指南: PDF
開發板
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設計工具
I2C-DESIGNER — I2C 設計工具
Use the I2C Designer tool to quickly resolve conflicts in addressing, voltage level and frequency in I2C based designs. Enter master and slave inputs to automatically generate an I2C tree or easily build a custom solution. This tool will help designers save time and comply with the I2C standard (...)
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
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模擬工具
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使用指南: PDF
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YZT) | 8 | Ultra Librarian |
| SSOP (DCT) | 8 | Ultra Librarian |
| VSSOP (DCU) | 8 | Ultra Librarian |
| X2SON (DQE) | 8 | Ultra Librarian |
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