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problem in proteus simulation. pls help..

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rajtech

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bcd 4056 no proteus

i have connected pic16f877 and 7segment led display through bcd to 7 seg driver(ic 4056).during simulation i receive the below error msg: no models specified for U3. (u3 is 4056). pls help to solve this problem thanks
 

Use another BCD to 7-segment decoder equipped with simulation model, for example:
7448, 74LS248, 4511, etc.
 

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    rajtech

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