전자부품 데이터시트 검색엔진 |
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LC72323 데이터시트(PDF) 7 Page - Sanyo Semicon Device |
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LC72323 데이터시트(HTML) 7 Page - Sanyo Semicon Device |
7 / 13 page Pin Functions No. 4950-7/13 LC72323 Pin Pin No. Function I/O I/O circuit type PA0 PA1 PA2 PA3 PB0 PB1 PB2 PB3 PC0 PC1 PC2 PC3 PD0 PD1 PD2 PD3 PE0 PE1 PE2 PE3 PF0 PF1 PF2 PF3 PG0 PG1 PG2 PG3 35 34 33 32 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 6 5 4 3 Low-threshold type dedicated input port These pins can be used, for example, for key data acquisition. Built-in pull-down resistors can be specified as an option. This option is in 4-pin units, and cannot be specified for individual pins. Input through these pins is disabled in BACKUP mode. Dedicated output ports Since the output transistor impedances are unbalanced CMOS, these pins can be effectively used for functions such as key scan timing. These pins go to the output high- impedance state in BACKUP mode. These pins go to the low level during a reset, i.e., when the RES pin is low. Dedicated output ports These are normal CMOS outputs. These pins go to the output high-impedance state in BACKUP mode. These pins go to the low level during a reset, i.e., when the RES pin is low. I/O port These pins are switched between input and output as follows: Once an input instruction (IN, TPT, or TPF) is executed, these pins latch in the input mode. Once an output instruction (OUT, SPB, or RPB) is executed, they latch in the output mode. These pins go to the input mode during a reset, i.e., when the RES pin is low. In BACKUP mode these pins go to the input mode with input disabled. I/O port These pins are switched between input and output by the FPC instruction. The I/O states of this port can be specified for individual pins. These pins go to the input mode during a reset, i.e., when the RES pin is low. In BACKUP mode these pins go to the input mode with input disabled. Dedicated input port Input through these pins is disabled in BACKUP mode. Input Output I/O Input Continued on next page. |
유사한 부품 번호 - LC72323 |
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유사한 설명 - LC72323 |
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