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UPD750064CU 데이터시트(PDF) 41 Page - NEC |
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UPD750064CU 데이터시트(HTML) 41 Page - NEC |
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41 / 82 page ![]() 41 µPD750064, 750066, 750068, 750064(A), 750066(A), 750068(A) Data Sheet U10165EJ2V0DS00 10. MASK OPTION The µPD750068 has the following mask options. • Mask option of P40 to P43 and P50 to P53 Can select whether to incorporate the pull-up resistor. (1) The pull-up resistor is incorporated in 1-bit units. (2) The pull-up resistor is not incorporated. • Mask option of standby function Can select the wait time with the RESET signal. (1) 217/fX (21.8 ms at fX = 6.0 MHz, 31.3 ms at fX = 4.19 MHz) (2) 215/fX (5.46 ms at fX = 6.0 MHz, 7.81 ms at fX = 4.19 MHz) • Mask option of subsystem clock Can select whether to enable the internal feedback resistor. (1) The internal feedback resistor is enabled (switch internal feedback resistor ON/OFF by software). (2) The internal feedback resistor is disabled (disconnect internal feedback resistor by hardware). |
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