74LS datasheet, 74LS circuit, 74LS data sheet: MOTOROLA – BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL. The SN54/74LS and SN54/74LS are fully synchronous 4-stage up/down counters featuring a preset capability for programmable operation. 74LS 54ls Synchronous Bi-directional BCD Decade Counter. The is a fully synchronous 4-state up down counter featuring a preset capability for.
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Low Level Input Current. Not more than one output should be shorted at a time and the duration should not exceed one second.
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74LS Datasheet(PDF) – National Semiconductor (TI)
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74LS168 PDF Datasheet浏览和下载
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Low Level Output Voltage. Soldering Tips Helpful Link: Engineering Program is accredited by: Action on Rising Clock Edge.
High Level Input Current. The 54LS is a fully synchronous 4-state up down coun- ter featuring a preset capability for programmable operation carry lookahead for easy cascading and a U D input to con- trol the direction of counting It counts in the BCD sequence and all state changes whether datashet counting or par- allel loading are initiated by the LOW-to-HIGH transition of the clock. Low Level Output Current.
High Level Input Voltage. See NS Package Number.
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