Datenblatt-Suchmaschine für elektronische Bauteile |
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SN74CB3T3306DCUR Datenblatt(PDF) 10 Page - Texas Instruments |
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SN74CB3T3306DCUR Datenblatt(HTML) 10 Page - Texas Instruments |
10 / 19 page 1 2 7 3 4 Bus Controller 5 6 8 0.1 µF SN74CB3T3306 SCDS119C – JANUARY 2003 – REVISED DECEMBER 2015 www.ti.com 8.4 Device Functional Modes Table 1 lists the functional modes for the SN74CB3T3306. Table 1. Function Table INPUT INPUT/OUTPUT FUNCTION OE A L B A port = B port H Hi-Z Disconnect 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information This application is specifically to connect a 5-V bus to a 3.3 V device. Ideally, set VCC to 3.3 V. It is assumed that communication in this particular application is one-directional, going from the bus controller to the device. 9.2 Typical Application Figure 8. Typical Application Diagram 9.2.1 Design Requirements This device uses CMOS technology and has balanced output drive. Take care to avoid bus contention because it can drive currents that would exceed maximum limits. Because this design is for down-translating voltage, no pull-up resistors are required. 9.2.2 Detailed Design Procedure 1. Recommended Input conditions – Specified high and low levels. See (VIH and VIL) in Recommended Operating Conditions – Inputs are overvoltage tolerant allowing them to go as high as 7 V at any valid VCC 2. Recommend output conditions – Load currents should not exceed 128 mA on each channel 10 Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3T3306 |
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