ramcard.bak@ 8e213be

main

Last change on this file since 8e213be was eecc779, checked in by Adrien Destugues <adrien.destugues@…>, 3 years ago
Latest version of flashgordon, WIP for Gemini
Property mode set to `100644`
File size: 14.8 KB

Line
1	EESchema Schematic File Version 4
2	LIBS:ramcard-cache
3	EELAYER 26 0
4	EELAYER END
5	$Descr User 10000 6000
6	encoding utf-8
7	Sheet 1 1
8	Title "Gemini 2020"
9	Date "2020-11-17"
10	Rev "1.0"
11	Comp "PulkoTronics"
12	Comment1 "2MB RAM expansion for Amstrad CPC 6128/Plus"
13	Comment2 ""
14	Comment3 ""
15	Comment4 ""
16	$EndDescr
17	Wire Wire Line
18	1050 2050 850 2050
19	Wire Wire Line
20	1050 1850 850 1850
21	Wire Wire Line
22	1850 2750 2000 2750
23	Wire Wire Line
24	1850 2650 2000 2650
25	Wire Wire Line
26	1850 2550 2000 2550
27	Wire Wire Line
28	1850 2450 2000 2450
29	Wire Wire Line
30	1850 2350 2000 2350
31	Wire Wire Line
32	1850 2250 2000 2250
33	Wire Wire Line
34	1850 1650 2000 1650
35	Wire Wire Line
36	1850 1450 2000 1450
37	Wire Wire Line
38	1850 1250 2000 1250
39	Wire Wire Line
40	1850 1050 2000 1050
41	Wire Wire Line
42	1850 1950 2150 1950
43	Wire Wire Line
44	1850 1750 2150 1750
45	Wire Wire Line
46	1850 3150 2000 3150
47	Wire Wire Line
48	1850 2950 2000 2950
49	Wire Wire Line
50	1050 850 850 850
51	Wire Wire Line
52	1050 2550 850 2550
53	Wire Wire Line
54	1050 2750 850 2750
55	Wire Wire Line
56	1050 3050 850 3050
57	Wire Wire Line
58	800 3350 800 3250
59	Wire Wire Line
60	800 3250 1050 3250
61	Wire Wire Line
62	800 2350 1050 2350
63	Wire Wire Line
64	800 2450 1050 2450
65	Wire Wire Line
66	1050 3150 850 3150
67	Wire Wire Line
68	1050 2850 850 2850
69	Wire Wire Line
70	1050 2650 850 2650
71	Wire Wire Line
72	1050 2250 850 2250
73	Wire Wire Line
74	1850 850 2000 850
75	Wire Wire Line
76	1850 3050 2000 3050
77	Wire Wire Line
78	1850 3250 2000 3250
79	Wire Wire Line
80	850 2950 1050 2950
81	Wire Wire Line
82	1850 1850 2150 1850
83	Wire Wire Line
84	1850 2050 2150 2050
85	Wire Wire Line
86	1850 950 2000 950
87	Wire Wire Line
88	1850 1150 2000 1150
89	Wire Wire Line
90	1850 1350 2000 1350
91	Wire Wire Line
92	1850 1550 2000 1550
93	Wire Wire Line
94	1050 950 900 950
95	Wire Wire Line
96	1050 1050 900 1050
97	Wire Wire Line
98	1050 1150 900 1150
99	Wire Wire Line
100	1050 1250 900 1250
101	Wire Wire Line
102	1050 1350 900 1350
103	Wire Wire Line
104	1050 1450 900 1450
105	Wire Wire Line
106	1050 1550 900 1550
107	Wire Wire Line
108	1050 1650 900 1650
109	Wire Wire Line
110	850 2150 1050 2150
111	Wire Wire Line
112	1850 2850 2050 2850
113	Wire Wire Line
114	1850 2150 2000 2150
115	Wire Wire Line
116	1050 1750 850 1750
117	Wire Wire Line
118	1050 1950 850 1950
119	Text GLabel 2000 2150 2 60 Output ~ 0
120	MREQ
121	NoConn ~ 2000 2650
122	NoConn ~ 2000 2550
123	NoConn ~ 2000 2450
124	NoConn ~ 2000 2250
125	$Comp
126	L power:VCC #PWR013
127	U 1 1 4DBBEA82
128	P 850 2150
129	F 0 "#PWR013" H 850 2250 30 0001 C CNN
130	F 1 "VCC" H 850 2250 30 0000 C CNN
131	F 2 "" H 850 2150 50 0001 C CNN
132	F 3 "" H 850 2150 50 0001 C CNN
133	1 850 2150
134	0 -1 -1 0
135	$EndComp
136	Text Label 900 950 0 60 ~ 0
137	A15
138	Text Label 2000 950 0 60 ~ 0
139	A14
140	Text Label 900 1050 0 60 ~ 0
141	A13
142	Text Label 2000 1050 0 60 ~ 0
143	A12
144	Text Label 900 1150 0 60 ~ 0
145	A11
146	Text Label 2000 1150 0 60 ~ 0
147	A10
148	Text Label 900 1250 0 60 ~ 0
149	A9
150	Text Label 2000 1250 0 60 ~ 0
151	A8
152	Text Label 900 1350 0 60 ~ 0
153	A7
154	Text Label 2000 1350 0 60 ~ 0
155	A6
156	Text Label 900 1450 0 60 ~ 0
157	A5
158	Text Label 2000 1450 0 60 ~ 0
159	A4
160	Text Label 900 1550 0 60 ~ 0
161	A3
162	Text Label 2000 1550 0 60 ~ 0
163	A2
164	Text Label 900 1650 0 60 ~ 0
165	A1
166	Text Label 2000 1650 0 60 ~ 0
167	A0
168	Text Label 850 1750 0 60 ~ 0
169	D7
170	Text Label 850 1850 0 60 ~ 0
171	D5
172	Text Label 850 1950 0 60 ~ 0
173	D3
174	Text Label 850 2050 0 60 ~ 0
175	D1
176	Text Label 2000 1750 0 60 ~ 0
177	D6
178	Text Label 2000 1850 0 60 ~ 0
179	D4
180	Text Label 2000 1950 0 60 ~ 0
181	D2
182	Text Label 2000 2050 0 60 ~ 0
183	D0
184	NoConn ~ 2000 3050
185	NoConn ~ 2000 3150
186	NoConn ~ 2000 3250
187	NoConn ~ 850 850
188	NoConn ~ 850 2250
189	NoConn ~ 850 2550
190	NoConn ~ 850 2650
191	NoConn ~ 850 2750
192	NoConn ~ 850 2950
193	NoConn ~ 850 3150
194	Text Notes 2360 1250 1 60 ~ 0
195	\ncpc connector
196	Text GLabel 800 2450 0 60 Output ~ 0
197	WR
198	$Comp
199	L ramcard-rescue:GND #PWR015
200	U 1 1 4CA89326
201	P 800 3350
202	F 0 "#PWR015" H 800 3350 30 0001 C CNN
203	F 1 "GND" H 800 3280 30 0001 C CNN
204	F 2 "" H 800 3350 50 0001 C CNN
205	F 3 "" H 800 3350 50 0001 C CNN
206	1 800 3350
207	1 0 0 -1
208	$EndComp
209	Text GLabel 800 2350 0 60 Output ~ 0
210	IORQ
211	$Comp
212	L ramcard-rescue:CONN_25X2 P1
213	U 1 1 4CA8712F
214	P 1450 2050
215	F 0 "P1" H 1450 3350 60 0000 C CNN
216	F 1 "CONN_25X2" V 1450 2050 50 0000 C CNN
217	F 2 "Connector_IDC:IDC-Header_2x25_P2.54mm_Vertical" H 1450 2050 50 0001 C CNN
218	F 3 "" H 1450 2050 50 0001 C CNN
219	1 1450 2050
220	1 0 0 -1
221	$EndComp
222	$Comp
223	L ramcard-rescue:GND #PWR0106
224	U 1 1 5EAC613B
225	P 1900 650
226	F 0 "#PWR0106" H 1900 650 30 0001 C CNN
227	F 1 "GND" H 1900 580 30 0001 C CNN
228	F 2 "" H 1900 650 50 0001 C CNN
229	F 3 "" H 1900 650 50 0001 C CNN
230	1 1900 650
231	0 1 1 0
232	$EndComp
233	Wire Wire Line
234	2000 850 2000 650
235	Wire Wire Line
236	2000 650 1900 650
237	NoConn ~ 2000 2350
238	Text GLabel 2000 2950 2 60 Output ~ 0
239	RAMRD
240	$Comp
241	L 74xx:74LS574 U2
242	U 1 1 5FB3A5F5
243	P 4200 3700
244	F 0 "U2" H 4200 4678 50 0000 C CNN
245	F 1 "74LS574" H 4400 4400 50 0000 C CNN
246	F 2 "Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm" H 4200 3700 50 0001 C CNN
247	F 3 "http://www.ti.com/lit/gpn/sn74LS574" H 4200 3700 50 0001 C CNN
248	1 4200 3700
249	1 0 0 -1
250	$EndComp
251	Text Label 7350 1950 2 50 ~ 0
252	D0
253	Text Label 7350 2050 2 50 ~ 0
254	D1
255	Text Label 7350 2350 2 50 ~ 0
256	D2
257	Text Label 7350 2450 2 50 ~ 0
258	D3
259	Text Label 8850 2550 0 50 ~ 0
260	D4
261	Text Label 8850 2450 0 50 ~ 0
262	D5
263	Text Label 8850 2150 0 50 ~ 0
264	D6
265	Text Label 8850 2050 0 50 ~ 0
266	D7
267	Text Label 7350 1750 2 50 ~ 0
268	A0
269	Text Label 7350 1650 2 50 ~ 0
270	A1
271	Text Label 7350 1550 2 50 ~ 0
272	A2
273	Text Label 7350 1450 2 50 ~ 0
274	A3
275	Text Label 7350 1350 2 50 ~ 0
276	A4
277	Text Label 8850 1450 0 50 ~ 0
278	A5
279	Text Label 8850 1550 0 50 ~ 0
280	A6
281	Text Label 8850 1650 0 50 ~ 0
282	A7
283	Text Label 8850 1950 0 50 ~ 0
284	A8
285	Text Label 8850 2650 0 50 ~ 0
286	A9
287	Text Label 8850 2750 0 50 ~ 0
288	A10
289	Text Label 8850 2850 0 50 ~ 0
290	A11
291	Text Label 8850 2950 0 50 ~ 0
292	A12
293	Text Label 8850 3050 0 50 ~ 0
294	A13
295	Text Label 8850 3150 0 50 ~ 0
296	XA14
297	Text GLabel 8950 1750 2 60 Output ~ 0
298	RAMRD
299	Text Label 4700 3900 0 50 ~ 0
300	XA16
301	Text Label 4700 3800 0 50 ~ 0
302	XA17
303	Text Label 4700 3700 0 50 ~ 0
304	XA18
305	Text Label 4700 3600 0 50 ~ 0
306	XA19
307	Text Label 4700 3500 0 50 ~ 0
308	XA20
309	Text Label 3700 3700 2 50 ~ 0
310	D5
311	Text Label 3700 3600 2 50 ~ 0
312	D4
313	Text Label 3700 3500 2 50 ~ 0
314	D3
315	Text Label 2250 3700 2 50 ~ 0
316	A7
317	Text Label 2250 4000 2 50 ~ 0
318	A8
319	Text Label 3700 4100 2 50 ~ 0
320	MMR
321	Text Label 4300 1200 0 50 ~ 0
322	MMR
323	Text Label 2700 2000 2 50 ~ 0
324	A15
325	Text Label 2700 2100 2 50 ~ 0
326	A14
327	Text Label 4300 1600 0 50 ~ 0
328	XA14
329	Text Label 4300 1500 0 50 ~ 0
330	XA15
331	Text Label 4300 1300 0 50 ~ 0
332	RAMDIS
333	Text Label 3700 3200 2 50 ~ 0
334	D0
335	Text Label 3700 3300 2 50 ~ 0
336	D1
337	Text Label 3700 3400 2 50 ~ 0
338	D2
339	Text Label 2700 1300 2 50 ~ 0
340	D6
341	Text Label 2700 1200 2 50 ~ 0
342	D7
343	Text Label 4700 3200 0 50 ~ 0
344	XD0
345	Text Label 4700 3300 0 50 ~ 0
346	XD1
347	Text Label 4700 3400 0 50 ~ 0
348	XD2
349	Text Label 4300 1800 0 50 ~ 0
350	XD0
351	Text Label 4300 1900 0 50 ~ 0
352	XD1
353	Text Label 4300 2000 0 50 ~ 0
354	XD2
355	Text Label 7350 3150 2 50 ~ 0
356	XA15
357	Text Label 7350 3050 2 50 ~ 0
358	XA16
359	Text Label 7350 2950 2 50 ~ 0
360	XA17
361	Text Label 7350 2850 2 50 ~ 0
362	XA18
363	Text Label 7350 2650 2 50 ~ 0
364	RAMWR
365	Text Label 2700 1400 2 50 ~ 0
366	D5
367	Text Label 2700 1500 2 50 ~ 0
368	D4
369	Text Label 2700 1600 2 50 ~ 0
370	D3
371	Text Notes 4600 1100 0 50 ~ 0
372	MMR = IORQ + WR + A15 + !A14 + !D6 + !D7
373	Text Label 8850 1850 0 50 ~ 0
374	RAMDIS
375	Text Notes 4600 1800 0 50 ~ 0
376	XA14 = A14 * !XD2 + XD0 * XD2
377	Text Notes 4600 1900 0 50 ~ 0
378	XA15 = A15 * !XD2 + XD1 * XD2
379	Text Notes 4600 2150 0 50 ~ 0
380	RAMDIS = (!XD2 * XD0 * A15 * A14)\n + (!XD2 * XD1 * !XD0)\n + (XD2 * !A15 * A14)
381	Text Notes 4600 1450 0 50 ~ 0
382	UNLOCK = ???\nRMR2 = (UNLOCK * !IORQ * !WR * !A15 * A14 * D7 * !D6 * D5)\nASIC.R = RMR2 * (D4 * D3) * RESET\n + !RMR2 * ASIC * RESET
383	Text Label 7350 1850 2 50 ~ 0
384	MREQ
385	$Comp
386	L power:VCC #PWR05
387	U 1 1 5FB4DD31
388	P 4200 2900
389	F 0 "#PWR05" H 4200 3000 30 0001 C CNN
390	F 1 "VCC" H 4200 3000 30 0000 C CNN
391	F 2 "" H 4200 2900 50 0001 C CNN
392	F 3 "" H 4200 2900 50 0001 C CNN
393	1 4200 2900
394	1 0 0 -1
395	$EndComp
396	$Comp
397	L power:VCC #PWR03
398	U 1 1 5FB4DD4E
399	P 4300 1000
400	F 0 "#PWR03" H 4300 1100 30 0001 C CNN
401	F 1 "VCC" H 4300 1100 30 0000 C CNN
402	F 2 "" H 4300 1000 50 0001 C CNN
403	F 3 "" H 4300 1000 50 0001 C CNN
404	1 4300 1000
405	1 0 0 -1
406	$EndComp
407	$Comp
408	L power:VCC #PWR07
409	U 1 1 5FB4DD65
410	P 8100 800
411	F 0 "#PWR07" H 8100 900 30 0001 C CNN
412	F 1 "VCC" H 8100 900 30 0000 C CNN
413	F 2 "" H 8100 800 50 0001 C CNN
414	F 3 "" H 8100 800 50 0001 C CNN
415	1 8100 800
416	1 0 0 -1
417	$EndComp
418	$Comp
419	L ramcard-rescue:GND #PWR06
420	U 1 1 5FB4DD7C
421	P 4200 4500
422	F 0 "#PWR06" H 4200 4500 30 0001 C CNN
423	F 1 "GND" H 4200 4430 30 0001 C CNN
424	F 2 "" H 4200 4500 50 0001 C CNN
425	F 3 "" H 4200 4500 50 0001 C CNN
426	1 4200 4500
427	1 0 0 -1
428	$EndComp
429	$Comp
430	L ramcard-rescue:GND #PWR04
431	U 1 1 5FB4DD93
432	P 2700 2300
433	F 0 "#PWR04" H 2700 2300 30 0001 C CNN
434	F 1 "GND" H 2700 2230 30 0001 C CNN
435	F 2 "" H 2700 2300 50 0001 C CNN
436	F 3 "" H 2700 2300 50 0001 C CNN
437	1 2700 2300
438	1 0 0 -1
439	$EndComp
440	$Comp
441	L ramcard-rescue:GND #PWR08
442	U 1 1 5FB4DDAA
443	P 8100 3450
444	F 0 "#PWR08" H 8100 3450 30 0001 C CNN
445	F 1 "GND" H 8100 3380 30 0001 C CNN
446	F 2 "" H 8100 3450 50 0001 C CNN
447	F 3 "" H 8100 3450 50 0001 C CNN
448	1 8100 3450
449	1 0 0 -1
450	$EndComp
451	$Comp
452	L 74xx:74LS32 U3
453	U 5 1 5FB4DDC1
454	P 1000 4750
455	F 0 "U3" H 1230 4796 50 0000 L CNN
456	F 1 "74LS32" H 1230 4705 50 0000 L CNN
457	F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 1000 4750 50 0001 C CNN
458	F 3 "http://www.ti.com/lit/gpn/sn74LS32" H 1000 4750 50 0001 C CNN
459	5 1000 4750
460	1 0 0 -1
461	$EndComp
462	$Comp
463	L power:VCC #PWR01
464	U 1 1 5FB4DE9C
465	P 1000 4250
466	F 0 "#PWR01" H 1000 4350 30 0001 C CNN
467	F 1 "VCC" H 1000 4350 30 0000 C CNN
468	F 2 "" H 1000 4250 50 0001 C CNN
469	F 3 "" H 1000 4250 50 0001 C CNN
470	1 1000 4250
471	1 0 0 -1
472	$EndComp
473	$Comp
474	L ramcard-rescue:GND #PWR02
475	U 1 1 5FB4DEB5
476	P 1000 5350
477	F 0 "#PWR02" H 1000 5350 30 0001 C CNN
478	F 1 "GND" H 1000 5280 30 0001 C CNN
479	F 2 "" H 1000 5350 50 0001 C CNN
480	F 3 "" H 1000 5350 50 0001 C CNN
481	1 1000 5350
482	1 0 0 -1
483	$EndComp
484	$Comp
485	L Device:C C1
486	U 1 1 5FB4DF4E
487	P 1800 4750
488	F 0 "C1" H 1915 4796 50 0000 L CNN
489	F 1 "C" H 1915 4705 50 0000 L CNN
490	F 2 "Capacitor_SMD:C_1206_3216Metric" H 1838 4600 50 0001 C CNN
491	F 3 "~" H 1800 4750 50 0001 C CNN
492	1 1800 4750
493	1 0 0 -1
494	$EndComp
495	$Comp
496	L Device:C C2
497	U 1 1 5FB4E00C
498	P 2200 4750
499	F 0 "C2" H 2315 4796 50 0000 L CNN
500	F 1 "C" H 2315 4705 50 0000 L CNN
501	F 2 "Capacitor_SMD:C_1206_3216Metric" H 2238 4600 50 0001 C CNN
502	F 3 "~" H 2200 4750 50 0001 C CNN
503	1 2200 4750
504	1 0 0 -1
505	$EndComp
506	$Comp
507	L Device:C C3
508	U 1 1 5FB4E067
509	P 2650 4750
510	F 0 "C3" H 2765 4796 50 0000 L CNN
511	F 1 "C" H 2765 4705 50 0000 L CNN
512	F 2 "Capacitor_SMD:C_1206_3216Metric" H 2688 4600 50 0001 C CNN
513	F 3 "~" H 2650 4750 50 0001 C CNN
514	1 2650 4750
515	1 0 0 -1
516	$EndComp
517	$Comp
518	L Device:C C4
519	U 1 1 5FB4E08E
520	P 3050 4750
521	F 0 "C4" H 3165 4796 50 0000 L CNN
522	F 1 "C" H 3165 4705 50 0000 L CNN
523	F 2 "Capacitor_SMD:C_1206_3216Metric" H 3088 4600 50 0001 C CNN
524	F 3 "~" H 3050 4750 50 0001 C CNN
525	1 3050 4750
526	1 0 0 -1
527	$EndComp
528	$Comp
529	L Device:CP C5
530	U 1 1 5FB4E0EC
531	P 3450 4750
532	F 0 "C5" H 3568 4796 50 0000 L CNN
533	F 1 "CP" H 3568 4705 50 0000 L CNN
534	F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.50mm" H 3488 4600 50 0001 C CNN
535	F 3 "~" H 3450 4750 50 0001 C CNN
536	1 3450 4750
537	1 0 0 -1
538	$EndComp
539	Wire Wire Line
540	1000 4250 1800 4250
541	Wire Wire Line
542	1800 4250 1800 4600
543	Connection ~ 1000 4250
544	Wire Wire Line
545	1800 4600 2200 4600
546	Connection ~ 1800 4600
547	Wire Wire Line
548	2200 4600 2650 4600
549	Connection ~ 2200 4600
550	Wire Wire Line
551	2650 4600 3050 4600
552	Connection ~ 2650 4600
553	Wire Wire Line
554	3050 4600 3450 4600
555	Connection ~ 3050 4600
556	Wire Wire Line
557	1800 4900 2200 4900
558	Connection ~ 1800 4900
559	Wire Wire Line
560	2200 4900 2650 4900
561	Connection ~ 2200 4900
562	Wire Wire Line
563	2650 4900 3050 4900
564	Connection ~ 2650 4900
565	Wire Wire Line
566	3050 4900 3450 4900
567	Connection ~ 3050 4900
568	$Comp
569	L RAM:LY6220488 U4
570	U 1 1 5FB62A0C
571	P 8100 2250
572	F 0 "U4" H 8100 3515 50 0000 C CNN
573	F 1 "LY6220488" H 8100 3424 50 0000 C CNN
574	F 2 "Package_SO:TSOP-II-44_10.16x18.41mm_P0.8mm" H 8100 2250 50 0001 C CNN
575	F 3 "DOCUMENTATION" H 8100 2250 50 0001 C CNN
576	1 8100 2250
577	1 0 0 -1
578	$EndComp
579	Text Label 7350 2750 2 50 ~ 0
580	XA19
581	Text Label 7350 2550 2 50 ~ 0
582	XA20
583	Wire Wire Line
584	8850 1750 8950 1750
585	Wire Wire Line
586	1000 5250 1800 5250
587	Wire Wire Line
588	1800 4900 1800 5250
589	Wire Wire Line
590	1000 5350 1000 5250
591	Connection ~ 1000 5250
592	Text Label 2700 1100 2 50 ~ 0
593	IORQ
594	Text Label 4300 2100 0 50 ~ 0
595	WR
596	Text Notes 4600 1600 0 50 ~ 0
597	RAMWR = WR + (ASIC * !A15 * A14)
598	Text Label 4300 1400 0 50 ~ 0
599	RAMWR
600	Text Label 850 3050 2 50 ~ 0
601	RAMDIS
602	NoConn ~ 2050 2850
603	NoConn ~ 2000 2750
604	Wire Wire Line
605	3700 4200 3700 4450
606	Wire Wire Line
607	3700 4450 4200 4450
608	Wire Wire Line
609	4200 4450 4200 4500
610	Connection ~ 4200 4500
611	Text Label 4300 2200 0 50 ~ 0
612	RESET
613	Text Label 850 2850 2 50 ~ 0
614	RESET
615	$Comp
616	L ramcard-rescue:Switch_DSDP-byteeeprom SW1
617	U 1 1 5FBA3EE1
618	P 2700 3950
619	F 0 "SW1" H 2700 3450 60 0000 C CNN
620	F 1 "Switch_DSDP-byteeeprom" H 2700 3550 60 0000 C CNN
621	F 2 "Button_Switch_THT:SW_CuK_JS202011CQN_DPDT_Straight" H 2700 3950 50 0001 C CNN
622	F 3 "" H 2700 3950 50 0001 C CNN
623	1 2700 3950
624	-1 0 0 1
625	$EndComp
626	$Comp
627	L ramcard-rescue:GND #PWR0101
628	U 1 1 5FBA945B
629	P 2050 4350
630	F 0 "#PWR0101" H 2050 4350 30 0001 C CNN
631	F 1 "GND" H 2050 4280 30 0001 C CNN
632	F 2 "" H 2050 4350 50 0001 C CNN
633	F 3 "" H 2050 4350 50 0001 C CNN
634	1 2050 4350
635	1 0 0 -1
636	$EndComp
637	Wire Wire Line
638	2050 4350 2050 4200
639	Wire Wire Line
640	2050 3900 2250 3900
641	Wire Wire Line
642	2250 4200 2050 4200
643	Connection ~ 2050 4200
644	Wire Wire Line
645	2050 4200 2050 3900
646	Text Label 3150 3800 0 50 ~ 0
647	MA7
648	Text Label 3150 4100 0 50 ~ 0
649	MA8
650	Wire Wire Line
651	7350 2250 7050 2250
652	Wire Wire Line
653	7050 2250 7050 3400
654	Wire Wire Line
655	7050 3400 8100 3400
656	Wire Wire Line
657	9150 3400 9150 2250
658	Wire Wire Line
659	9150 2250 8850 2250
660	Wire Wire Line
661	8100 3450 8100 3400
662	Connection ~ 8100 3400
663	Wire Wire Line
664	8100 3400 9150 3400
665	Wire Wire Line
666	7350 2150 7100 2150
667	Wire Wire Line
668	7100 2150 7100 900
669	Wire Wire Line
670	7100 900 8100 900
671	Wire Wire Line
672	9350 900 9350 2350
673	Wire Wire Line
674	9350 2350 8850 2350
675	Wire Wire Line
676	8100 900 8100 800
677	Connection ~ 8100 900
678	Wire Wire Line
679	8100 900 9350 900
680	$Comp
681	L GAL:ATF750C-10SU U?
682	U 1 1 5FBC62C0
683	P 2700 1100
684	F 0 "U?" H 3500 1487 60 0000 C CNN
685	F 1 "ATF750C-10SU" H 3500 1381 60 0000 C CNN
686	F 2 "SOIC24-W_MC_MCH" H 3500 1340 60 0001 C CNN
687	F 3 "" H 2700 1100 60 0000 C CNN
688	1 2700 1100
689	1 0 0 -1
690	$EndComp
691	Wire Wire Line
692	4300 1100 4300 1000
693	Wire Wire Line
694	2700 2300 2700 2200
695	Text Label 2700 1700 2 50 ~ 0
696	D2
697	Text Label 2700 1800 2 50 ~ 0
698	D1
699	Text Label 2700 1900 2 50 ~ 0
700	D0
701	Wire Wire Line
702	3150 3800 3700 3800
703	Wire Wire Line
704	3150 4100 3450 4100
705	Wire Wire Line
706	3450 4100 3450 3900
707	Wire Wire Line
708	3450 3900 3700 3900
709	$EndSCHEMATC

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source: avrstuff/CPC stuff/gemini/ramcard.bak@ 8e213be

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