| EESchema Schematic File Version 4 |
| LIBS:nova-cache |
| EELAYER 30 0 |
| EELAYER END |
| $Descr User 10000 6000 |
| encoding utf-8 |
| Sheet 1 1 |
| Title "Nova 2021" |
| Date "2021-02-23" |
| Rev "1.0" |
| Comp "PulkoTronics" |
| Comment1 "RTC/NVRAM expansion for Amstrad CPC 6128/Plus" |
| Comment2 "" |
| Comment3 "" |
| Comment4 "" |
| $EndDescr |
| Wire Wire Line |
| 1050 2050 850 2050 |
| Wire Wire Line |
| 1050 1850 850 1850 |
| Wire Wire Line |
| 1550 2750 1700 2750 |
| Wire Wire Line |
| 1550 2650 1700 2650 |
| Wire Wire Line |
| 1550 2550 1700 2550 |
| Wire Wire Line |
| 1550 2450 1700 2450 |
| Wire Wire Line |
| 1550 2350 1700 2350 |
| Wire Wire Line |
| 1550 2250 1700 2250 |
| Wire Wire Line |
| 1550 1650 1700 1650 |
| Wire Wire Line |
| 1550 1450 1700 1450 |
| Wire Wire Line |
| 1550 1250 1700 1250 |
| Wire Wire Line |
| 1550 1050 1700 1050 |
| Wire Wire Line |
| 1550 1950 1850 1950 |
| Wire Wire Line |
| 1550 1750 1850 1750 |
| Wire Wire Line |
| 1550 3150 1700 3150 |
| Wire Wire Line |
| 1550 2950 1700 2950 |
| Wire Wire Line |
| 1050 850 850 850 |
| Wire Wire Line |
| 1050 2550 850 2550 |
| Wire Wire Line |
| 1050 2750 850 2750 |
| Wire Wire Line |
| 1050 3050 850 3050 |
| Wire Wire Line |
| 800 3250 1050 3250 |
| Wire Wire Line |
| 800 2350 1050 2350 |
| Wire Wire Line |
| 800 2450 1050 2450 |
| Wire Wire Line |
| 1050 3150 850 3150 |
| Wire Wire Line |
| 1050 2850 850 2850 |
| Wire Wire Line |
| 1050 2650 850 2650 |
| Wire Wire Line |
| 1050 2250 850 2250 |
| Wire Wire Line |
| 1550 3050 1700 3050 |
| Wire Wire Line |
| 1550 3250 1700 3250 |
| Wire Wire Line |
| 850 2950 1050 2950 |
| Wire Wire Line |
| 1550 1850 1850 1850 |
| Wire Wire Line |
| 1550 2050 1850 2050 |
| Wire Wire Line |
| 1550 950 1700 950 |
| Wire Wire Line |
| 1550 1150 1700 1150 |
| Wire Wire Line |
| 1550 1350 1700 1350 |
| Wire Wire Line |
| 1550 1550 1700 1550 |
| Wire Wire Line |
| 1050 950 900 950 |
| Wire Wire Line |
| 1050 1050 900 1050 |
| Wire Wire Line |
| 1050 1150 900 1150 |
| Wire Wire Line |
| 1050 1250 900 1250 |
| Wire Wire Line |
| 1050 1350 900 1350 |
| Wire Wire Line |
| 1050 1450 900 1450 |
| Wire Wire Line |
| 1050 1550 900 1550 |
| Wire Wire Line |
| 1050 1650 900 1650 |
| Wire Wire Line |
| 850 2150 1050 2150 |
| Wire Wire Line |
| 1550 2850 1750 2850 |
| Wire Wire Line |
| 1550 2150 1700 2150 |
| Wire Wire Line |
| 1050 1750 850 1750 |
| Wire Wire Line |
| 1050 1950 850 1950 |
| Text GLabel 1700 2150 2 60 Output ~ 0 |
| MREQ |
| NoConn ~ 1700 2550 |
| NoConn ~ 1700 2450 |
| NoConn ~ 1700 2250 |
| $Comp |
| L power:VCC #PWR02 |
| U 1 1 4DBBEA82 |
| P 850 2150 |
| F 0 "#PWR02" H 850 2250 30 0001 C CNN |
| F 1 "VCC" H 850 2250 30 0000 C CNN |
| F 2 "" H 850 2150 50 0001 C CNN |
| F 3 "" H 850 2150 50 0001 C CNN |
| 1 850 2150 |
| 0 -1 -1 0 |
| $EndComp |
| Text Label 900 950 0 60 ~ 0 |
| A15 |
| Text Label 1700 950 0 60 ~ 0 |
| A14 |
| Text Label 900 1050 0 60 ~ 0 |
| A13 |
| Text Label 1700 1050 0 60 ~ 0 |
| A12 |
| Text Label 900 1150 0 60 ~ 0 |
| A11 |
| Text Label 1700 1150 0 60 ~ 0 |
| A10 |
| Text Label 900 1250 0 60 ~ 0 |
| A9 |
| Text Label 1700 1250 0 60 ~ 0 |
| A8 |
| Text Label 900 1350 0 60 ~ 0 |
| A7 |
| Text Label 1700 1350 0 60 ~ 0 |
| A6 |
| Text Label 900 1450 0 60 ~ 0 |
| A5 |
| Text Label 1700 1450 0 60 ~ 0 |
| A4 |
| Text Label 900 1550 0 60 ~ 0 |
| A3 |
| Text Label 1700 1550 0 60 ~ 0 |
| A2 |
| Text Label 900 1650 0 60 ~ 0 |
| A1 |
| Text Label 1700 1650 0 60 ~ 0 |
| A0 |
| Text Label 850 1750 0 60 ~ 0 |
| D7 |
| Text Label 850 1850 0 60 ~ 0 |
| D5 |
| Text Label 850 1950 0 60 ~ 0 |
| D3 |
| Text Label 850 2050 0 60 ~ 0 |
| D1 |
| Text Label 1700 1750 0 60 ~ 0 |
| D6 |
| Text Label 1700 1850 0 60 ~ 0 |
| D4 |
| Text Label 1700 1950 0 60 ~ 0 |
| D2 |
| Text Label 1700 2050 0 60 ~ 0 |
| D0 |
| NoConn ~ 1700 3050 |
| NoConn ~ 1700 3150 |
| NoConn ~ 1700 3250 |
| NoConn ~ 850 850 |
| NoConn ~ 850 2250 |
| NoConn ~ 850 2550 |
| NoConn ~ 850 2650 |
| NoConn ~ 850 2750 |
| NoConn ~ 850 3150 |
| Text GLabel 800 2450 0 60 Output ~ 0 |
| WR |
| Text GLabel 800 2350 0 60 Output ~ 0 |
| IORQ |
| NoConn ~ 1700 2650 |
| $Comp |
| L power:VCC #PWR015 |
| U 1 1 5FB4DE9C |
| P 8800 1600 |
| F 0 "#PWR015" H 8800 1700 30 0001 C CNN |
| F 1 "VCC" H 8800 1700 30 0000 C CNN |
| F 2 "" H 8800 1600 50 0001 C CNN |
| F 3 "" H 8800 1600 50 0001 C CNN |
| 1 8800 1600 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L Device:C C1 |
| U 1 1 5FB4DF4E |
| P 7600 1750 |
| F 0 "C1" H 7715 1796 50 0000 L CNN |
| F 1 "C" H 7715 1705 50 0000 L CNN |
| F 2 "Capacitor_SMD:C_1206_3216Metric" H 7638 1600 50 0001 C CNN |
| F 3 "~" H 7600 1750 50 0001 C CNN |
| 1 7600 1750 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L Device:C C2 |
| U 1 1 5FB4E00C |
| P 8000 1750 |
| F 0 "C2" H 8115 1796 50 0000 L CNN |
| F 1 "C" H 8115 1705 50 0000 L CNN |
| F 2 "Capacitor_SMD:C_1206_3216Metric" H 8038 1600 50 0001 C CNN |
| F 3 "~" H 8000 1750 50 0001 C CNN |
| 1 8000 1750 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L Device:C C3 |
| U 1 1 5FB4E067 |
| P 8450 1750 |
| F 0 "C3" H 8565 1796 50 0000 L CNN |
| F 1 "C" H 8565 1705 50 0000 L CNN |
| F 2 "Capacitor_SMD:C_1206_3216Metric" H 8488 1600 50 0001 C CNN |
| F 3 "~" H 8450 1750 50 0001 C CNN |
| 1 8450 1750 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L Device:CP C5 |
| U 1 1 5FB4E0EC |
| P 9250 1750 |
| F 0 "C5" H 9368 1796 50 0000 L CNN |
| F 1 "CP" H 9368 1705 50 0000 L CNN |
| F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.50mm" H 9288 1600 50 0001 C CNN |
| F 3 "~" H 9250 1750 50 0001 C CNN |
| 1 9250 1750 |
| 1 0 0 -1 |
| $EndComp |
| Wire Wire Line |
| 7600 1600 8000 1600 |
| Wire Wire Line |
| 8000 1600 8450 1600 |
| Connection ~ 8000 1600 |
| Connection ~ 8450 1600 |
| Wire Wire Line |
| 7600 1900 8000 1900 |
| Wire Wire Line |
| 8000 1900 8450 1900 |
| Connection ~ 8000 1900 |
| Connection ~ 8450 1900 |
| Text Label 850 3050 2 50 ~ 0 |
| RAMDIS |
| NoConn ~ 1750 2850 |
| NoConn ~ 1700 2750 |
| Wire Wire Line |
| 8450 1600 8800 1600 |
| Wire Wire Line |
| 8450 1900 8800 1900 |
| Connection ~ 8800 1600 |
| Wire Wire Line |
| 8800 1600 9250 1600 |
| Wire Wire Line |
| 8800 1950 8800 1900 |
| Connection ~ 8800 1900 |
| Wire Wire Line |
| 8800 1900 9250 1900 |
| Text Label 850 2950 2 50 ~ 0 |
| ROMDIS |
| NoConn ~ 1700 2950 |
| $Comp |
| L power:GND #PWR017 |
| U 1 1 60368448 |
| P 9450 1250 |
| F 0 "#PWR017" H 9450 1000 50 0001 C CNN |
| F 1 "GND" H 9455 1077 50 0000 C CNN |
| F 2 "" H 9450 1250 50 0001 C CNN |
| F 3 "" H 9450 1250 50 0001 C CNN |
| 1 9450 1250 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L power:GND #PWR03 |
| U 1 1 60368469 |
| P 2050 850 |
| F 0 "#PWR03" H 2050 600 50 0001 C CNN |
| F 1 "GND" H 2055 677 50 0000 C CNN |
| F 2 "" H 2050 850 50 0001 C CNN |
| F 3 "" H 2050 850 50 0001 C CNN |
| 1 2050 850 |
| 1 0 0 -1 |
| $EndComp |
| Wire Wire Line |
| 1550 850 2050 850 |
| $Comp |
| L nova-rescue:M48T35Y-70MH1F-2021-02-23_17-07-18 U4 |
| U 1 1 6036E291 |
| P 3550 2900 |
| F 0 "U4" H 4350 3387 60 0000 C CNN |
| F 1 "M48T35Y-70MH1F" H 4350 3281 60 0000 C CNN |
| F 2 "NVRAM:M48T35Y-70MH1F" H 4350 3240 60 0001 C CNN |
| F 3 "" H 3550 2900 60 0000 C CNN |
| 1 3550 2900 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L nova-rescue:M48T35Y-70MH1F-2021-02-23_17-07-18 U4 |
| U 2 1 6036E30A |
| P 7850 950 |
| F 0 "U4" H 8650 1337 60 0000 C CNN |
| F 1 "M48T35Y-70MH1F" H 8650 1231 60 0000 C CNN |
| F 2 "NVRAM:M48T35Y-70MH1F" H 8650 1290 60 0001 C CNN |
| F 3 "" H 7850 950 60 0000 C CNN |
| 2 7850 950 |
| 1 0 0 -1 |
| $EndComp |
| Text Label 5150 3000 0 50 ~ 0 |
| D0 |
| Text Label 5150 3100 0 50 ~ 0 |
| D1 |
| Text Label 5150 3200 0 50 ~ 0 |
| D2 |
| Text Label 5150 3300 0 50 ~ 0 |
| D3 |
| Text Label 5150 3400 0 50 ~ 0 |
| D4 |
| Text Label 5150 3500 0 50 ~ 0 |
| D5 |
| Text Label 5150 3600 0 50 ~ 0 |
| D6 |
| Text Label 5150 3700 0 50 ~ 0 |
| D7 |
| Text Label 3450 3800 0 50 ~ 0 |
| A0 |
| Text Label 3450 3700 0 50 ~ 0 |
| A1 |
| Text Label 3450 3600 0 50 ~ 0 |
| A2 |
| Text Label 3450 3500 0 50 ~ 0 |
| A3 |
| Text Label 3450 3400 0 50 ~ 0 |
| A4 |
| Text Label 3450 3300 0 50 ~ 0 |
| A5 |
| Text Label 3450 3200 0 50 ~ 0 |
| A6 |
| Text Label 3450 3100 0 50 ~ 0 |
| A7 |
| Text Label 3450 4200 0 50 ~ 0 |
| A8 |
| Text Label 3450 4100 0 50 ~ 0 |
| A9 |
| Text Label 3400 3900 0 50 ~ 0 |
| A10 |
| Text Label 3400 4000 0 50 ~ 0 |
| A11 |
| Text Label 3400 3000 0 50 ~ 0 |
| A12 |
| Text Label 650 4150 0 50 ~ 0 |
| A13 |
| Text Label 650 4550 0 50 ~ 0 |
| A14 |
| Text Label 650 3800 0 50 ~ 0 |
| A15 |
| Wire Wire Line |
| 3400 3000 3550 3000 |
| Wire Wire Line |
| 3450 3100 3550 3100 |
| Wire Wire Line |
| 3450 3200 3550 3200 |
| Wire Wire Line |
| 3450 3300 3550 3300 |
| Wire Wire Line |
| 3450 3400 3550 3400 |
| Wire Wire Line |
| 3450 3500 3550 3500 |
| Wire Wire Line |
| 3450 3600 3550 3600 |
| Wire Wire Line |
| 3450 3700 3550 3700 |
| Wire Wire Line |
| 3450 3800 3550 3800 |
| Wire Wire Line |
| 3400 3900 3550 3900 |
| Wire Wire Line |
| 3400 4000 3550 4000 |
| Wire Wire Line |
| 3450 4100 3550 4100 |
| Wire Wire Line |
| 3450 4200 3550 4200 |
| Text GLabel 1700 2350 2 60 Output ~ 0 |
| RD |
| Text GLabel 5150 2800 2 60 Output ~ 0 |
| RD |
| Text GLabel 3500 4600 0 60 Output ~ 0 |
| WR |
| Wire Wire Line |
| 3500 4500 3550 4500 |
| Wire Wire Line |
| 3500 4600 3550 4600 |
| $Comp |
| L 74xx:74HC86 U1 |
| U 1 1 6037F6C9 |
| P 3150 4850 |
| F 0 "U1" H 3150 4850 50 0000 C CNN |
| F 1 "74HC86" H 3150 4650 50 0000 C CNN |
| F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 3150 4850 50 0001 C CNN |
| F 3 "http://www.ti.com/lit/gpn/sn74HC86" H 3150 4850 50 0001 C CNN |
| 1 3150 4850 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L 74xx:74HC86 U1 |
| U 2 1 6037F735 |
| P 1100 3900 |
| F 0 "U1" H 1100 3900 50 0000 C CNN |
| F 1 "74HC86" H 1100 4150 50 0000 C CNN |
| F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 1100 3900 50 0001 C CNN |
| F 3 "http://www.ti.com/lit/gpn/sn74HC86" H 1100 3900 50 0001 C CNN |
| 2 1100 3900 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L 74xx:74HC86 U1 |
| U 3 1 6037F77C |
| P 1100 4650 |
| F 0 "U1" H 1100 4650 50 0000 C CNN |
| F 1 "74HC86" H 1100 5650 50 0000 C CNN |
| F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 1100 4650 50 0001 C CNN |
| F 3 "http://www.ti.com/lit/gpn/sn74HC86" H 1100 4650 50 0001 C CNN |
| 3 1100 4650 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L 74xx:74HC86 U1 |
| U 4 1 6037F7D3 |
| P 1100 4250 |
| F 0 "U1" H 1100 4250 50 0000 C CNN |
| F 1 "74HC86" H 1100 4850 50 0000 C CNN |
| F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 1100 4250 50 0001 C CNN |
| F 3 "http://www.ti.com/lit/gpn/sn74HC86" H 1100 4250 50 0001 C CNN |
| 4 1100 4250 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L 74xx:74LS138 U2 |
| U 1 1 6037FC84 |
| P 2200 4450 |
| F 0 "U2" H 2300 5100 50 0000 C CNN |
| F 1 "74LS138" H 2400 4950 50 0000 C CNN |
| F 2 "Package_SO:SOIC-16_3.9x9.9mm_P1.27mm" H 2200 4450 50 0001 C CNN |
| F 3 "http://www.ti.com/lit/gpn/sn74LS138" H 2200 4450 50 0001 C CNN |
| 1 2200 4450 |
| 1 0 0 -1 |
| $EndComp |
| Text Label 5850 1000 0 50 ~ 0 |
| D0 |
| Text Label 5850 1100 0 50 ~ 0 |
| D1 |
| Text Label 5850 1200 0 50 ~ 0 |
| D2 |
| Text Label 5850 1300 0 50 ~ 0 |
| D3 |
| Text Label 5850 1700 0 50 ~ 0 |
| D4 |
| Text Label 5850 1600 0 50 ~ 0 |
| D5 |
| Text Label 5850 1500 0 50 ~ 0 |
| D6 |
| Text Label 5850 1400 0 50 ~ 0 |
| D7 |
| Wire Wire Line |
| 5850 1000 5950 1000 |
| Wire Wire Line |
| 5850 1100 5950 1100 |
| Wire Wire Line |
| 5850 1200 5950 1200 |
| Wire Wire Line |
| 5850 1300 5950 1300 |
| Wire Wire Line |
| 5850 1400 5950 1400 |
| Wire Wire Line |
| 5850 1500 5950 1500 |
| Wire Wire Line |
| 5850 1600 5950 1600 |
| Wire Wire Line |
| 5850 1700 5950 1700 |
| Text Label 6950 1700 0 50 ~ 0 |
| MAP0 |
| Text Label 6950 1600 0 50 ~ 0 |
| MAP1 |
| Text Label 6950 1500 0 50 ~ 0 |
| MAP2 |
| Text Label 6950 1400 0 50 ~ 0 |
| MAP3 |
| Text Label 3350 4300 0 50 ~ 0 |
| SEL0 |
| Text Label 6950 1100 0 50 ~ 0 |
| SEL1 |
| Text Label 6950 1200 0 50 ~ 0 |
| SEL2 |
| Text Label 6950 1300 0 50 ~ 0 |
| SEL3 |
| Text Label 2950 2900 2 50 ~ 0 |
| SEL1 |
| Wire Wire Line |
| 3350 4300 3550 4300 |
| $Comp |
| L Device:Jumper JP1 |
| U 1 1 60389732 |
| P 3250 2900 |
| F 0 "JP1" H 3250 3164 50 0000 C CNN |
| F 1 "Jumper" H 3250 3073 50 0000 C CNN |
| F 2 "Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm" H 3250 2900 50 0001 C CNN |
| F 3 "~" H 3250 2900 50 0001 C CNN |
| 1 3250 2900 |
| 1 0 0 -1 |
| $EndComp |
| Text Label 600 4000 0 50 ~ 0 |
| MAP3 |
| Text Label 600 4750 0 50 ~ 0 |
| MAP2 |
| Text Label 600 4350 0 50 ~ 0 |
| MAP1 |
| Wire Wire Line |
| 650 3800 800 3800 |
| Wire Wire Line |
| 600 4000 800 4000 |
| Wire Wire Line |
| 650 4150 800 4150 |
| Wire Wire Line |
| 600 4350 800 4350 |
| Wire Wire Line |
| 650 4550 800 4550 |
| Wire Wire Line |
| 600 4750 800 4750 |
| Wire Wire Line |
| 1400 3900 1700 3900 |
| Wire Wire Line |
| 1700 3900 1700 4150 |
| Wire Wire Line |
| 1400 4250 1700 4250 |
| Wire Wire Line |
| 1400 4650 1400 4350 |
| Wire Wire Line |
| 1400 4350 1700 4350 |
| Text GLabel 1250 4900 0 60 Output ~ 0 |
| MREQ |
| Wire Wire Line |
| 1700 4900 1700 4850 |
| Wire Wire Line |
| 1250 4900 1700 4900 |
| Text Label 6950 1000 0 50 ~ 0 |
| SEL0 |
| Text Label 1500 4750 0 50 ~ 0 |
| SEL2 |
| Text Label 1450 4650 0 50 ~ 0 |
| SEL3 |
| Wire Wire Line |
| 1500 4750 1700 4750 |
| Wire Wire Line |
| 1450 4650 1700 4650 |
| $Comp |
| L 74xx:74LS30 U3 |
| U 1 1 603D2AC1 |
| P 2800 1550 |
| F 0 "U3" H 2800 1550 50 0000 C CNN |
| F 1 "74LS30" H 2800 1350 50 0000 C CNN |
| F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 2800 1550 50 0001 C CNN |
| F 3 "http://www.ti.com/lit/gpn/sn74LS30" H 2800 1550 50 0001 C CNN |
| 1 2800 1550 |
| 1 0 0 -1 |
| $EndComp |
| Text Label 4150 1100 0 50 ~ 0 |
| A9 |
| Text Label 2350 1450 0 50 ~ 0 |
| A11 |
| Text Label 2350 1550 0 50 ~ 0 |
| A12 |
| Text Label 2350 1950 0 50 ~ 0 |
| A13 |
| Text Label 2350 1850 0 50 ~ 0 |
| A14 |
| Text Label 2350 1650 0 50 ~ 0 |
| A15 |
| Text Label 3850 5050 0 50 ~ 0 |
| ROMDIS |
| Text Label 3850 5350 0 50 ~ 0 |
| RAMDIS |
| $Comp |
| L power:GND #PWR09 |
| U 1 1 6040C934 |
| P 6200 2300 |
| F 0 "#PWR09" H 6200 2050 50 0001 C CNN |
| F 1 "GND" H 6205 2127 50 0000 C CNN |
| F 2 "" H 6200 2300 50 0001 C CNN |
| F 3 "" H 6200 2300 50 0001 C CNN |
| 1 6200 2300 |
| 1 0 0 -1 |
| $EndComp |
| Wire Wire Line |
| 6200 2300 6450 2300 |
| $Comp |
| L power:VCC #PWR010 |
| U 1 1 6040C96B |
| P 6450 700 |
| F 0 "#PWR010" H 6450 800 30 0001 C CNN |
| F 1 "VCC" H 6450 800 30 0000 C CNN |
| F 2 "" H 6450 700 50 0001 C CNN |
| F 3 "" H 6450 700 50 0001 C CNN |
| 1 6450 700 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L power:GND #PWR05 |
| U 1 1 6040CA13 |
| P 2200 5150 |
| F 0 "#PWR05" H 2200 4900 50 0001 C CNN |
| F 1 "GND" H 2205 4977 50 0000 C CNN |
| F 2 "" H 2200 5150 50 0001 C CNN |
| F 3 "" H 2200 5150 50 0001 C CNN |
| 1 2200 5150 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L power:VCC #PWR04 |
| U 1 1 6040CA48 |
| P 2200 3850 |
| F 0 "#PWR04" H 2200 3950 30 0001 C CNN |
| F 1 "VCC" H 2200 3950 30 0000 C CNN |
| F 2 "" H 2200 3850 50 0001 C CNN |
| F 3 "" H 2200 3850 50 0001 C CNN |
| 1 2200 3850 |
| 1 0 0 -1 |
| $EndComp |
| Wire Wire Line |
| 2350 1250 2500 1250 |
| Wire Wire Line |
| 2350 1350 2500 1350 |
| Wire Wire Line |
| 2350 1450 2500 1450 |
| Wire Wire Line |
| 2350 1550 2500 1550 |
| Wire Wire Line |
| 2350 1650 2500 1650 |
| Wire Wire Line |
| 2350 1750 2500 1750 |
| Wire Wire Line |
| 2350 1850 2500 1850 |
| Wire Wire Line |
| 2350 1950 2500 1950 |
| Text Label 2850 4150 0 50 ~ 0 |
| RAMSEL |
| Wire Wire Line |
| 2700 4150 2850 4150 |
| Text Label 3500 4500 2 50 ~ 0 |
| RAMSEL |
| Wire Wire Line |
| 5950 1900 5650 1900 |
| $Comp |
| L power:VCC #PWR011 |
| U 1 1 60426A28 |
| P 7850 2650 |
| F 0 "#PWR011" H 7850 2750 30 0001 C CNN |
| F 1 "VCC" H 7850 2750 30 0000 C CNN |
| F 2 "" H 7850 2650 50 0001 C CNN |
| F 3 "" H 7850 2650 50 0001 C CNN |
| 1 7850 2650 |
| 0 -1 -1 0 |
| $EndComp |
| Text Notes 2650 2250 0 50 ~ 0 |
| MAPSEL is 0 on OUT FE82\nSHRESET is 0 on RESET or OUT F8FF,xx (soft reset) |
| Text Notes 5650 4150 0 50 ~ 0 |
| RAM is enabled when SEL2=0 and SEL3=1\nAddress is selected by MAP1-3\n\nOUT FE82,0x -> map at 0000\nOUT FE82,2x -> map at 2000\nOUT FE82,4x -> map at 4000\n...\nOUT FE82,Ex -> map at E000\n\nPage is selected by SEL0-1\n(1 or 4 8K-pages available)\nOUT FE82,x8 -> Page 0\nOUT FE82,x9 -> Page 1\nOUT FE82,xA -> Page 2\nOUT FE82,xB -> Page 3\n\nOUT FE82,x0-x7 or xC-xF to disable the mapping |
| $Comp |
| L 74xx:74LS273 U7 |
| U 1 1 60426D23 |
| P 6450 1500 |
| F 0 "U7" H 6550 2300 50 0000 C CNN |
| F 1 "74LS273" H 6650 2200 50 0000 C CNN |
| F 2 "Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm" H 6450 1500 50 0001 C CNN |
| F 3 "http://www.ti.com/lit/gpn/sn74LS273" H 6450 1500 50 0001 C CNN |
| 1 6450 1500 |
| 1 0 0 -1 |
| $EndComp |
| $Comp |
| L Connector_Generic:Conn_02x25_Odd_Even J1 |
| U 1 1 60427157 |
| P 1250 2050 |
| F 0 "J1" H 1300 3467 50 0000 C CNN |
| F 1 "Conn_02x25_Odd_Even" H 1300 3376 50 0000 C CNN |
| F 2 "Connector_PinHeader_2.54mm:PinHeader_2x25_P2.54mm_Vertical" H 1250 2050 50 0001 C CNN |
| F 3 "~" H 1250 2050 50 0001 C CNN |
| 1 1250 2050 |
| 1 0 0 -1 |
| $EndComp |
| Text Label 850 2850 2 50 ~ 0 |
| RESET |
| Text Label 5950 2000 2 50 ~ 0 |
| SHRESET |
| $Comp |
| L Device:C C4 |
| U 1 1 6043410B |
| P 8800 1750 |
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