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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M38B53M4-059FP датащи(PDF) 76 Page - Mitsubishi Electric Semiconductor |
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M38B53M4-059FP датащи(HTML) 76 Page - Mitsubishi Electric Semiconductor |
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76 / 355 page  38B5 Group User’s Manual 1-60 HARDWARE FUNCTIONAL DESCRIPTION Reset Circuit ______ To reset the microcomputer, RESET pin should be held at an “L” ______ level for 2 µs or more. Then the RESET pin is returned to an “H” level (the power source voltage should be between 2.7 V and 5.5 V, and the oscillation should be stable), reset is released. After the reset is completed, the program starts from the address contained in address FFFD16 (high-order byte) and address FFFC16 (low-order byte). Make sure that the reset input voltage is less than 0.5 V for VCC of 2.7 V (switching to the high-speed mode, a power source voltage must be between 4.0 V and 5.5 V). Fig. 69 Reset sequence Fig. 68 Reset circuit example (Note) 0.2VCC 0V 0V Poweron VCC RESET VCC RESET Power source voltage detection circuit Power source voltage Reset input voltage Note : Reset release voltage ; Vcc=2.7 V RESET Internal reset Data φ Address SYNC XIN: about 4000 cycles XIN ? ? ? ? ? FFFC FFFD ADH, ADL 1: The frequency relation of f(XIN) and f( φ) is f(XIN)=4 • f(φ). 2: The question marks (?) indicate an undefined state that depends on the previous state. Notes ADL ADH |
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