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LC72F3781 Folha de dados(PDF) 8 Page - Sanyo Semicon Device |
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LC72F3781 Folha de dados(HTML) 8 Page - Sanyo Semicon Device |
8 / 17 page LC72F3781 No.0459-8/17 Pin Description Pin name Pin No. I/O Pin explanation Equivalent circuit PA0 PA1 PA2 PA3 32 31 30 29 I Dedicated input ports. These ports are designed with a low threshold voltage. Input is disabled in Backup mode. PB0 PB1 PB2 PB3 28 27 26 25 I/O General-purpose I/O ports. The mode (input or output) is set using the IOS2 instruction. Input is disabled and the pins go to the high-impedance state in Backup mode. These ports are set up as general-purpose input ports after a power on reset. PC0 PC1 PC2 PC3 24 23 22 21 I/O General-purpose I/O ports (middle-voltage input and output). The mode (input or output) is set using the IOS2 instruction. External pull-up resistors are required since the output circuits are open drain. Input is disabled and the pins go to the high-impedance state in Backup mode. These ports are set up as general-purpose input ports after a power on reset. PD0/INT4 PD1/INT5 PD2 PD3 20 19 18 17 I/O General-purpose I/O and external interrupt shared function ports. The input formats are Schmitt inputs. The external interrupt function is enabled when the external interrupt enable flag is set. • When used as general-purpose I/O ports : The mode (input or output) is set in 1-bit units using the IOS2 instruction. • When used as external interrupt pins : The external interrupt functions are enabled by setting the corresponding external interrupt enable flag (INT4EN or INT5EN). In this case, the pins must be set to input mode in advance. Input is disabled and the pins go to the high-impedance state in Backup mode. These ports are set up as general-purpose input ports after a power on reset. Continued on next page. ILC05529 BACK UP ILC05530 BACK UP ILC05531 BACK UP ILC05532 BACK UP |
Nº de peça semelhante - LC72F3781 |
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Descrição semelhante - LC72F3781 |
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