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M35061 数据表(PDF) 35 Page - Renesas Technology Corp |
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M35061 数据表(HTML) 35 Page - Renesas Technology Corp |
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35 / 40 page ![]() 34 SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS M35061-XXXSP/FP MITSUBISHI MICROCOMPUTERS NOTE FOR SUPPLYING POWER (1) Timing of power supplying to AC pin The internal circuit of M35061-XXXSP/FP is reset when the level of the auto clear input pin AC is “L”. This pin is hysteresis input with the pull-up resistor. The timing about power supplying of AC pin is shown in Figure 18. After supplying the power (VDD and VSS) to M35061-XXXSP/FP, the tW time must be reserved for 1 ms or more. Before starting input from the microcomputer, the waiting time (tS) must be reserved for 200 ms after the supply voltage to the AC pin becomes 0.8 ✕ VDD or more. (2) Timing of power supplying to VDD1 pin and VDD2 pin The power need to supply to VDD1 and VDD2 at a time, though it is separated perfectly between the VDD1 as the digital line and the VDD2 as the analog line. __ Fig. 18 Timing of power supplying to AC pin Supply voltage VDD 0.8 ✕ VDD 0.2 5 VDD tw Voltage [V] Time t [s] VAC (AC pin input voltage) 200ms Data input is not available 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 VSS pin, and the VDD2 pin and VSS pin using a heavy wire. DATA REQUIRED FOR MASK ROM ORDERING Please send the following data for mask orders. (1) M35061-XXXSP/FP mask ROM order confirmation form (2) 32P2W-A, 32P4B mask specification form (3) ROM data (EPROM 3 sets) (4) Floppy disks containing the character font generating program +character data |
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