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Os motores de busca de Datasheet de Componentes eletrônicos |
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Os motores de busca de Datasheet de Componentes eletrônicos |
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M35070 Folha de dados(PDF) 30 Page - Renesas Technology Corp |
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M35070 Folha de dados(HTML) 30 Page - Renesas Technology Corp |
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30 / 42 page  MITSUBISHI MICROCOMPUTERS M35070-XXXSP/FP SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS 29 NOTE FOR SUPPLYING POWER __ (1)Timing of power supplying to AC pin The internal circuit of M35070-XXXSP/FP is reset when the level __ of the auto clear input pin AC is “L”. This pin in hysteresis input with the pull-up resistor. __ The timing about power supplying of AC pin is shown in Figure 16. DATA REQUIRED FOR MASK ROM ORDERING Please send the following data for mask orders. (1) M35070-XXXSP/FP mask ROM order confirmation form (2) 20P4B mask specification form (3) 20P2Q-A mask specification from (4) ROM data (EPROM 3 sets) (5) Floppy disks containing the character font generating program + character data PRECAUTION FOR USE Notes on noise and latch-up In order to avoid noise and latch-up, connect a bypass capacitor ( ≈0.1µF) directly between the VDD1 pin and VSS1 pin, and the VDD2 pin and VSS2 pin using a heavy wire. Fig. 16 __ Timing of power supplying to AC pin After supplying the power (VDD and VSS) to M35070-XXXSP/FP and the supply voltage becomes more than 0.8 × VDD, it needs to __ keep VIL time; tw of the AC pin for more than 1ms. __ Start inputting from microcomputer after AC pin supply voltage becomes more than 0.8 × VDD and keeping 200ms wait time. (2)Timing of power supplying to VDD1 and VDD2. Supply power to VDD1 and VDD2 at the same time. Note for waveform timing of the horizontal signals to the HOR pin Set horizontal synchronous signal edge∗ waveform timing to under 5ns and input to HOR pin. _ Set only the side which set by B/F register waveform timing under 5ns and input to HOR pin. _ ∗: Set front porch edge or back porch edge by B/F register. 90% 10% tf tr Horizontal synchronous signal Voltage [V] VDD 0.8 x VDD 0.2 x VDD Supply voltage more than 1ms tW tS Time t [s] Data input disable VAC (AC pin input voltage) |
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