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UPD78F9026A Folha de dados(PDF) 38 Page - NEC |
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UPD78F9026A Folha de dados(HTML) 38 Page - NEC |
38 / 213 page CHAPTER 2 PIN FUNCTIONS User's Manual U11919EJ3V0UM00 38 2.2.13 IC (mask ROM model only) The IC (Internally Connected) pin is used to set the µPD789026 Subseries in the test mode in testing before shipment. In the normal operating mode, directly connect the IC pin to the VSS0 or VSS1 pin with as short a wire as possible. If a potential difference is generated between the IC pin and VSS0 or VSS1 pin due to a long wiring length between these pins, or external noise is superimposed on the IC pin, the user program may not run correctly. • Connect the IC pin directly to the VSS0 or VSS1 pin. VSS0 or VSS1 IC Keep short |
Nº de peça semelhante - UPD78F9026A |
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Descrição semelhante - UPD78F9026A |
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