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UPD7759 Datasheet(PDF) 5 Page - NEC |
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UPD7759 Datasheet(HTML) 5 Page - NEC |
5 / 18 page µPD7759 5 1.3 PIN FUNCTION FOR SLAVE MODE Pin 52-pin 40-pin (Abbre- QFP DIP I/O Function viation) Pin No. Pin No. I0 11 4 I1 12 5 I2 15 6 I3 16 7 Invalid. I4 17 8 Set at high or low level. I5 18 9 I6 19 10 I7 21 11 Output/ Input Invalid. Leave this pin open. Invalid. Leave this pin open. Slave mode selection input. MD 34 21 Input Transition between two operation mode is not accepted during synthesis or in the standby mode. Invalid. Set at high level. Chip select signal input. WR becomes valid when CS goes low. A0 41 26 A1 42 27 A2 43 28 A3 44 29 A4 45 30 Output A5 47 31 A6 48 32 A7 49 33 A8 50 34 ASD0 51 35 ASD1 2 36 ASD2 3 37 ASD3 4 38 ASD4 5 39 ASD5 8 1 ASD6 9 2 ASD7 10 3 Input Input speech synthesis data from an external source. Invalid. Leave these pins open. SAA 23 13 Output ALE 25 15 Output ST 35 22 Input CS 38 25 Input AEN/WR 22 12 Inputs write strobe signal for a speech synthesis data. Input |
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