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SN74CB3T3245PWG4 Folha de dados(PDF) 10 Page - Texas Instruments |
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SN74CB3T3245PWG4 Folha de dados(HTML) 10 Page - Texas Instruments |
10 / 28 page 2 19 1 RON SN74CB3T3245 Bus Controller 8 Device 8 20 A1 VCC NC OE 0.1 2F VCC 3 RON A2 4 RON A3 5 RON A4 6 RON A5 7 RON A6 8 RON A7 9 RON A8 10 GND 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 B8 SN74CB3T3245 SCDS136B – OCTOBER 2003 – REVISED JUNE 2015 www.ti.com 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. 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 Schematic 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 pullup 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: SN74CB3T3245 |
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Descrição semelhante - SN74CB3T3245PWG4 |
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