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SN74AHC244DBRE4 Datasheet(PDF) 10 Page - Texas Instruments |
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SN74AHC244DBRE4 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 31 page OE V GND A1 A4 Y1 Y4 Regulated 5 V µC CC System Logic LEDs µC System Logic µC System Logic µC or System Logic SN54AHC244, SN74AHC244 SCLS226K – OCTOBER 1995 – REVISED JULY 2014 www.ti.com 10 Application and Implementation 10.1 Application Information The SNx4AHC244 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 inputs can except voltages to 5.5 V at any valid VCC making it ideal for down translation. 10.2 Typical Application Figure 5. 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 • 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 5.5 V at any valid VCC • 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 Submit Documentation Feedback Copyright © 1995–2014, Texas Instruments Incorporated Product Folder Links: SN54AHC244 SN74AHC244 |
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