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LC87FBL08A датащи(PDF) 11 Page - ON Semiconductor |
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LC87FBL08A датащи(HTML) 11 Page - ON Semiconductor |
11 / 28 page LC87FBL08A No.A1955-11/28 Continued from preceding page. Pin Name I/O Description Option Port 7 I/O • 4-bit I/O port • I/O specifiable in 1 bit units • Pull-up resistors can be turned on and off in 1 bit units. • Pin functions P70: INT0 input / HOLD reset input / timer 0L capture input P71: INT1 input / HOLD reset input / timer 0H capture input P72: INT2 input / HOLD reset input / timer 0 event input / timer 0L capture input P73: INT3 input (with noise filter) / timer 0 event input / timer 0H capture input P70(AN8) to P73(AN11): AD converter input Interrupt acknowledge types No P70 to P73 Rising Falling Rising & Falling H level L level INT0 INT1 INT2 INT3 enable enable enable enable enable enable enable enable disable disable enable enable enable enable disable disable enable enable disable disable RES I/O External reset input / internal reset output No CF1/XT1 I • Ceramic resonator or 32.768kHz crystal oscillator input pin • Pin function General-purpose input port No CF2/XT2 I/O • Ceramic resonator or 32.768kHz crystal oscillator output pin • Pin function General-purpose I/O port No Port Output Types The table below lists the types of port outputs and the presence/absence of a pull-up resistor. Data can be read into any input port even if it is in the output mode. Port Name Option selected in units of Option type Output type Pull-up resistor P00 to P07 1 bit 1 CMOS Programmable (Note 1) 2 Nch-open drain No P10 to P17 1 bit 1 CMOS Programmable 2 Nch-open drain Programmable P20 to P21 1 bit 1 CMOS Programmable 2 Nch-open drain Programmable P30 to P31 1 bit 1 CMOS Programmable 2 Nch-open drain Programmable P70 - No Nch-open drain Programmable P71 to P73 - No CMOS Programmable CF2/XT2 - No Ceramic resonator/32.768kHz crystal resonator output Nch-open drain (N-channel open drain when set to general-purpose output port) No Note 1: The control of the presence or absence of the programmable pull-up resistors for port 0 and the switching between low-and high-impedance pull-up connection is exercised in nibble (4-bit) units (P00 to 03 or P04 to 07). |
Аналогичный номер детали - LC87FBL08A |
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Аналогичное описание - LC87FBL08A |
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