ramcard.sch@ 87456c1

main

Last change on this file since 87456c1 was 87456c1, checked in by Adrien Destugues <pulkomandy@…>, 12 years ago

Replace broken GORDON schematics with reverse engineering of MegaFLASH one, to serve as a base for improvements.

git-svn-id: svn://pulkomandy.tk/avrstuff@70 c6672c3c-f6b6-47f9-9001-1fd6b12fecbe

Property mode set to 100644

File size: 19.2 KB

Line
1	EESchema Schematic File Version 2 date 18/09/2012 23:05:56
2	LIBS:device
3	LIBS:power
4	LIBS:transistors
5	LIBS:conn
6	LIBS:linear
7	LIBS:74xx
8	LIBS:special
9	LIBS:interface
10	LIBS:contrib
11	LIBS:valves
12	LIBS:byteeeprom
13	LIBS:ramcard-cache
14	EELAYER 25 0
15	EELAYER END
16	$Descr User 10000 6000
17	encoding utf-8
18	Sheet 1 1
19	Title "Ramcard"
20	Date "18 sep 2012"
21	Rev ""
22	Comp "Ram7"
23	Comment1 "Retro analyzed from PCB"
24	Comment2 ""
25	Comment3 ""
26	Comment4 ""
27	$EndDescr
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791	Entry Wire Line
792	6400 2200 6300 2100
793	Entry Wire Line
794	6300 2200 6200 2100
795	Entry Wire Line
796	6200 2200 6100 2100
797	Text Label 6200 2100 1 60 ~ 0
798	D7
799	Text Label 6300 2100 1 60 ~ 0
800	D5
801	Text Label 6400 2100 1 60 ~ 0
802	D3
803	Text Label 6500 2100 1 60 ~ 0
804	D1
805	Text Label 6200 950 1 60 ~ 0
806	D6
807	Text Label 6300 950 1 60 ~ 0
808	D4
809	Text Label 6400 950 1 60 ~ 0
810	D2
811	Text Label 6500 950 1 60 ~ 0
812	D0
813	$Comp
814	L GND #PWR06
815	U 1 1 4DBBE106
816	P 9300 2450
817	F 0 "#PWR06" H 9300 2450 30 0001 C CNN
818	F 1 "GND" H 9300 2380 30 0001 C CNN
819	1 9300 2450
820	0 -1 -1 0
821	$EndComp
822	Text GLabel 7400 2100 3 60 Input ~ 0
823	ROMDIS
824	Text Label 9300 1350 0 60 ~ 0
825	D7
826	Text Label 9300 1250 0 60 ~ 0
827	D6
828	Text Label 9300 1150 0 60 ~ 0
829	D5
830	Text Label 9300 1050 0 60 ~ 0
831	D4
832	Text Label 9300 950 0 60 ~ 0
833	D3
834	Text Label 9300 850 0 60 ~ 0
835	D2
836	Text Label 9300 750 0 60 ~ 0
837	D1
838	Text Label 9300 650 0 60 ~ 0
839	D0
840	Text Notes 1600 5050 0 60 ~ 0
841	register
842	Text Notes 6700 3200 0 60 ~ 0
843	Rom active notification
844	Text GLabel 9050 3550 2 60 Output ~ 0
845	ROMDIS
846	NoConn ~ 7400 950
847	NoConn ~ 7500 950
848	NoConn ~ 7600 950
849	NoConn ~ 7700 950
850	NoConn ~ 5300 950
851	NoConn ~ 5300 2100
852	NoConn ~ 6700 2100
853	NoConn ~ 7000 2100
854	NoConn ~ 7100 2100
855	NoConn ~ 7200 2100
856	NoConn ~ 7300 2100
857	NoConn ~ 7500 2100
858	NoConn ~ 7600 2100
859	Text Notes 5050 2350 1 60 ~ 0
860	\ncpc connector
861	Text Notes 5650 2600 0 60 ~ 0
862	OUT Decoder
863	Text GLabel 5950 2950 0 60 Input ~ 0
864	WR
865	Text GLabel 6900 2150 3 60 Output ~ 0
866	WR
867	$Comp
868	L GND #PWR07
869	U 1 1 4CA89326
870	P 7800 2150
871	F 0 "#PWR07" H 7800 2150 30 0001 C CNN
872	F 1 "GND" H 7800 2080 30 0001 C CNN
873	1 7800 2150
874	0 -1 -1 0
875	$EndComp
876	Text GLabel 6800 2150 3 60 Output ~ 0
877	IORQ
878	Text GLabel 5950 2750 0 60 Input ~ 0
879	IORQ
880	$Comp
881	L 74LS32 U2
882	U 4 1 4CA89162
883	P 6750 2850
884	F 0 "U2" H 6750 2900 60 0000 C CNN
885	F 1 "74LS32" H 6750 2800 60 0000 C CNN
886	4 6750 2850
887	1 0 0 -1
888	$EndComp
889	Text GLabel 9050 2750 2 60 Output ~ 0
890	ROMSEL
891	Text GLabel 900 5250 0 60 Input ~ 0
892	ROMSEL
893	$Comp
894	L 74LS32 U2
895	U 3 1 4CA89099
896	P 8200 2750
897	F 0 "U2" H 8200 2800 60 0000 C CNN
898	F 1 "74LS32" H 8200 2700 60 0000 C CNN
899	3 8200 2750
900	1 0 0 1
901	$EndComp
902	$Comp
903	L GND #PWR08
904	U 1 1 4CA88AFC
905	P 900 5400
906	F 0 "#PWR08" H 900 5400 30 0001 C CNN
907	F 1 "GND" H 900 5330 30 0001 C CNN
908	1 900 5400
909	1 0 0 -1
910	$EndComp
911	Text Notes 1150 4200 0 60 ~ 0
912	Current ROM number storage
913	Text Notes 600 2750 0 60 ~ 0
914	comparator
915	$Comp
916	L 74LS32 U2
917	U 1 1 4CA87CE5
918	P 6200 3450
919	F 0 "U2" H 6200 3500 60 0000 C CNN
920	F 1 "74LS32" H 6200 3400 60 0000 C CNN
921	1 6200 3450
922	1 0 0 1
923	$EndComp
924	$Comp
925	L C C4
926	U 1 1 4CA87152
927	P 9300 4200
928	F 0 "C4" H 9350 4300 50 0000 L CNN
929	F 1 "C" H 9350 4100 50 0000 L CNN
930	1 9300 4200
931	1 0 0 -1
932	$EndComp
933	$Comp
934	L C C3
935	U 1 1 4CA87151
936	P 9000 4200
937	F 0 "C3" H 9050 4300 50 0000 L CNN
938	F 1 "C" H 9050 4100 50 0000 L CNN
939	1 9000 4200
940	1 0 0 -1
941	$EndComp
942	$Comp
943	L CP1 C5
944	U 1 1 4CA87146
945	P 8650 4200
946	F 0 "C5" H 8700 4300 50 0000 L CNN
947	F 1 "CP1" H 8700 4100 50 0000 L CNN
948	1 8650 4200
949	1 0 0 -1
950	$EndComp
951	$Comp
952	L CONN_25X2 P1
953	U 1 1 4CA8712F
954	P 6500 1500
955	F 0 "P1" H 6500 2800 60 0000 C CNN
956	F 1 "CONN_25X2" V 6500 1500 50 0000 C CNN
957	1 6500 1500
958	0 -1 -1 0
959	$EndComp
960	$Comp
961	L C C2
962	U 1 1 4CA870EF
963	P 8300 4200
964	F 0 "C2" H 8350 4300 50 0000 L CNN
965	F 1 "C" H 8350 4100 50 0000 L CNN
966	1 8300 4200
967	1 0 0 -1
968	$EndComp
969	$Comp
970	L R R2
971	U 1 1 4CA870D9
972	P 1350 3050
973	F 0 "R2" V 1430 3050 50 0000 C CNN
974	F 1 "1KR" V 1350 3050 50 0000 C CNN
975	1 1350 3050
976	-1 0 0 1
977	$EndComp
978	$Comp
979	L DIODE D13
980	U 1 1 4CA870AA
981	P 8700 3550
982	F 0 "D13" H 8700 3650 40 0000 C CNN
983	F 1 "DIODE" H 8700 3450 40 0000 C CNN
984	1 8700 3550
985	1 0 0 -1
986	$EndComp
987	$EndSCHEMATC

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source: avrstuff/CPC stuff/gordon/ramcard.sch@ 87456c1

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