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SN74AHCT08DE4 Folha de dados(PDF) 9 Page - Texas Instruments |
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SN74AHCT08DE4 Folha de dados(HTML) 9 Page - Texas Instruments |
9 / 31 page VCC 0.1 F µ 5 V Regulated 5-V Accessory 3.3-V Bus Driver SN54AHCT08, SN74AHCT08 www.ti.com SCLS237N – OCTOBER 1995 – REVISED SEPTEMBER 2015 10 Application and Implementation 10.1 Application Information The SNx4AHCT08 devices are low-drive CMOS devices that can be used for a multitude of bus-interface type applications where output ringing is a concern. The low drive and slow edge rates will minimize overshoot and undershoot on the outputs. The TTL inputs can except voltages down to 3.3 V and translate up to 5 V. 10.2 Typical Application Figure 3. Typical Application Diagram 10.2.1 Design Requirements This device uses CMOS technology and has balanced output drive. Care should be taken to avoid bus contention because it can drive currents that would exceed maximum limits. The high drive will also create fast edges into light loads, so routing and load conditions should be considered to prevent ringing. 10.2.2 Detailed Design Procedure 1. Recommended input conditions – Rise time and fall time specs: See ( Δt/ΔV) in the Recommended Operating Conditions table. – Specified High and low levels: See (VIH and VIL) in the Recommended Operating Conditions table. – Inputs are overvoltage tolerant allowing them to go as high as 5.5 V at any valid VCC 2. Recommend output conditions – Load currents should not exceed 25 mA per output and 50 mA total for the part – Outputs should not be pulled above VCC 10.2.3 Application Curves Figure 4. Switching Characteristics Comparison Copyright © 1995–2015, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: SN54AHCT08 SN74AHCT08 |
Nº de peça semelhante - SN74AHCT08DE4 |
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Descrição semelhante - SN74AHCT08DE4 |
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