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SN74AHCT86PWR 数据表(PDF) 9 Page - Texas Instruments |
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SN74AHCT86PWR 数据表(HTML) 9 Page - Texas Instruments |
9 / 30 page VCC 0.1 F µ 5 V Regulated 5-V Accessory 3.3-V Bus Driver SN54AHCT86, SN74AHCT86 www.ti.com SCLS250N – OCTOBER 1995 – REVISED AUGUST 2014 10 Application and Implementation 10.1 Application Information The SNx4AHCT86 is a low-drive CMOS device 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 input switching levels have been lowered to accommodate TTL inputs of 0.8-V VIL and 2-V VIH. This feature makes the device ideal for translating up from 3.3 V to 5 V. Figure 5 shows this type of translation. 10.2 Typical Application Figure 4. Typical Application Schematic 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; therefore, 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 75 mA total for the part – Outputs should not be pulled above VCC Copyright © 1995–2014, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: SN54AHCT86 SN74AHCT86 |
类似零件编号 - SN74AHCT86PWR |
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类似说明 - SN74AHCT86PWR |
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