门禁系统CPU原理图 

1+5V2+5VU1C2104 +/-5?U2216VDDVCCC1+C1-C2+C2-T1INT2INR1OUTR2OUTGND1345104 +/-54 +/-5?C5DB0DB1DB2DB3DB4DB5DB6DB7RXTXRF_INKEY_INT1RSRWEBELLRESETXTAL1XTAL2LCD_LAMP12345678141516171819202191312C13+5V246810+5V4P110104 +/-5%(ADC0) PA0(ADC1) PA1(ADC2) PA2(ADC3) PA3(ADC4) PA4(ADC5) PA5(ADC6) PA6(ADC7) PA7PC0PC1PC2PC3PC4PC5(TOSC1) PC6(TOSC2) PC7AREFAGNDAVCCGND40393837363534332223242526272829323130KEY_ADTEMP_ADLEVEL_ADDB5(MOSI)RESETDB7(SCK)DB6(MISO)1357912RSRWEDB0DB1DB2DB3DB4DB5DB6DB7LCD_LAMP34567891011121314GND+5VRSRWEDB0DB1DB2DB3DB4DB5DB6DB7BLK+BLK-LCD12864LCD128*64ATO 电脑RS232104 +/-5%AJ1594837261D Connector 91011PB0 (T0)PB1 (T1)PB2 (AIN0)INT2PB3 (AIN1)PB4 (SS)PB5 (MOSI)PB6 (MISO)PB7 (SCK)VCCPD0 (RXD)PD1 (TXD)PD2 (INT0)PD3 (INT1)PD4 (OC1B)PD5 (OC1A)PD6 (ICP)PD7 (TOSC2)RESETX1X2Header 5X2H1471386104 +/-5?T1OUTT2OUTR1INR2INVEE11TX1012915RXKEY_INCKEY_DECCHARGE_STATUSLOCK_CONTROLAnnunciatorLCD_BACKCHARGEC6104 +/-5%+5VMAX232AMJEB+5VC11104 +/-5%L1C8104 +/-5uHC9104 +/-5á0220uFLOCK_CONTROLCHARGELEVEL_ADAnnunciatorCHARGE_STATUS+5VP212345678BATMEGA16_DIP40Q18550R210K +/-1%R31K +/-1%R41K +/-1%R51K +/-1?llR81K +/-1%R91K +/-1%R131K +/-1%R151K +/-1%R1LCD_BACKS1设置4.7K +/-1%KEY_ADC12104 +/-5%LCD背光S2向上11TO POWER+5VLS1+5VQ28550R610K +/-1%R71K +/-1%+5VBELLRF_INP412345Header 5S7R142.2KKEY_INC+S9KEY_DECDS1RESET--S11TitleSizeA4Date:File:2007-6-12Sheet ofC:\\Documents and Settings\\..\\_MCU_原理图Drawn By:.SCHDOC4于军峰CS3向下CC13220uFRF_INBELLRESET+5VP312345Header 5S4向左S5向右S6确认+5V+5vR12100K +/-1%XTAL1XTAL2KEY_INT1R1010K +/-1%TEMP_ADRT14.7KR1110K +/-1%RESETC1410uFS8D返回tS10说明C15474 +/-5á722P +/-5%1Y12C1622P +/-5%门禁系统_CPU_原理图NumberRevisionD7.3728M123