Firmwares from DDR

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Firmwares from DDR

Last update 20.02.2023

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Mask ROMs: old series (U501, U551) new series (U505 and later)
EPROMs series: A H J K M P Q S U V Y
EMR Mask: EMR Mask
======================================================================================================================

Mask ROMs old series (U501, U551)

Mask/ Bitmaske (BM)	Chip	Description
010-025	U501	K1003 (set 010-025, 090, 091, 513-158, 556, 520, 521)
026-033	U501	K1003 Math. module (not have data from 030)
037	U501	??? Vielen Dank mark1111, Ruediger
040-045	U551	K1003 expansion module
063	U501D	F1100/1300 Teilnehmerwahl TW1
064	U501	??? Vielen Dank mark1111, Ruediger
065	U501	??? (may be damaged) Vielen Dank mark1111, Ruediger
084	U501	??? Vielen Dank mark1111, Ruediger
087	U501	??? Vielen Dank mark1111, Ruediger
088	U501	??? Vielen Dank mark1111, Ruediger
089	U501	??? Vielen Dank mark1111, Ruediger
090-091	U501	K1003 (set 010-025, 090, 091, 513-158, 556, 520, 521)
118	U501	??? Vielen Dank mark1111, Ruediger
145	U501D	K1510 board ZVE2 051-8460
435-442	U501	K1003 Statistic module (not have data from 438)
513-518	U501	K1003 (set 010-025, 090, 091, 513-158, 556, 520, 521)
520-521	U501	K1003 (set 010-025, 090, 091, 513-158, 556, 520, 521)
546-552	U551	??? Kleinfakturierautomat (KFA) Robotron/Daro 1711 (set 546-552, 554) Vielen Dank mark1111, Ruediger
554	U551	??? Kleinfakturierautomat (KFA) Robotron/Daro 1711 (set 546-552, 554) Vielen Dank mark1111, Ruediger
555	U551	Diskettenlaufwerk K5600.10
556	U501	K1003 (set 010-025, 090, 091, 513-158, 556, 520, 521)

Mask ROMs

Mask/ Bitmaske (BM)	Chip	Description
001	U2364D 45	Chess Master G-5003.501 (set 001+108; pic)
002	U2364D 45	ChessMaster Diamond (set 002+201; pic)
002	U2716	??? Z9001-Modul IDAS ROM 1 set (002-006)
003	U2716	Z9001-Modul IDAS ROM 2 set (002-006)
004	U2716	Z9001-Modul IDAS ROM 3 set (002-006)
005	U2716	Z9001-Modul IDAS ROM 4 set (002-006)
006	U2716	Z9001-Modul IDAS ROM 5 set (002-006)
008	U505	Schachcomputer SC2 (IS203) ROM-Inhalte (set BM008-BM016)
009	U505	Schachcomputer SC2 (IS204) (set 008-016)
010	U505	Schachcomputer SC2 (IS205) (set 008-016)
011	U505	Schachcomputer SC2 (IS206) (set 008-016)
012	U505	Schachcomputer SC2 (IS207) (set 008-016)
013	U505	Schachcomputer SC2 (IS208) (set 008-016)
014	U505	Schachcomputer SC2 (IS209) (set 008-016)
015	U505	Schachcomputer SC2 (IS210) (set 008-016)
016	U505	Schachcomputer SC2 (IS211) (set 008-016)
017	U505	Schachcomputer SC1 (set 008-016 and 017)
019	U505D	???
036	U505D	S6011 charset (for VQC10). Vielen Dank VolkerP
037	U505D	Schachcomputer SC2 (IS211) - new version of 016 (fix error)
039	U505	Polycomputer 880 ROM 1 Adresse 0000h-03FFh (set 039-040) == U555 Bitmuster "163"
040	U505	Polycomputer 880 ROM 2 Adresse 1000h-13FFh (set 039-040) == U555 Bitmuster "153"
048-053	U505	???? K1520 012-7040 (set 048-053; pic)
054-055	U505	ABS 012-3210
056-065	U505D	Chess Master .500 (pic)
068	U505	PC1715 Floppycontroller ROM 1 (set 068-069)
069	U505	PC1715 Floppycontroller ROM 2 (set 068-069)
075	U505D	LC80 ROM 1 Vielen Dank VolkerP
076	U505D	LC80 ROM 2 Vielen Dank VolkerP
077	U505D	elektronische Schreibmaschine S6005 ROM 1 (set 077-081)
078	U505D	elektronische Schreibmaschine S6005 ROM 2 (set 077-081)
079	U505D	elektronische Schreibmaschine S6005 ROM 3 (set 077-081)
080	U505D	elektronische Schreibmaschine S6005 ROM 4 (set 077-081)
081	U505D	elektronische Schreibmaschine S6005 ROM 5 (set 077-081)
083	U505D	Bootloader A5120 (K2526, 062-8110)
100	U2616D	Z1013 charset
108	U2616D	Chess Master G-5003.501 (set 001+108; pic)
111	U2616D 45	KC87.1x charset (==bm115)
112	U2616D 45	Z9001 Druckermodul fur K6311/12 - 690025.2 - ab 3 Quartal 1987 (==bm116)
115	U2616D 45	KC87.2x and .3x charset (==bm111)
116	U2716	Z9001 Schreibmaschinen-Modul fur S6005 - 690021.1 - ab 3 Quartal 1987 (==bm112; pic)
130-133	U2616D 36	Fernschreiber F2000 BR02 A-D (set 130-140; BR02 board; pic) Vielen Dank Joerg Drobick
134	U2616D 36	Fernschreiber F2000 BR02 E(set 130-140; BR02 board; pic)
135-140	U2616D 36	Fernschreiber F2000 BR02 F-L(set 130-140; BR02 board; pic) Vielen Dank Joerg Drobick
141	U2616D 36	Fernschreiber F2000 (set 141-144; DR02 board)
142	U2616D 36	Fernschreiber F2000 (set 141-144; DR02 board; pic)
143	U2616D 36	Fernschreiber F2000 (set 141-144; DR02 board)
144	U2616D 36	Fernschreiber F2000 (set 141-144; DR02 board)
145	U2616D	board 013-1601 ec7927.01M (set 145-149) ==U311 ??
146	U2616D	board 013-1601 ec7927.01M (set 145-149) ==U312 ??
147	U2616D	board 013-1601 ec7927.01M (set 145-149) ==U310 ??
148	U2616D	board 013-1601 ec7927.01M (set 145-149) ==U320 ??
149	U2616D	board 013-1601 ec7927.01M (set 145-149) ==U321 ??
171	U2616D 45	?? Schreibmaschine S60xx (very similat to bm081)
172	U2616D	Waerememengenrechner WR6A vom Messgeraetewerk Babelsberg. CPU ist ein EMR UB886 .
176	U2616D 39	P8000 terminal (ZG1?)
182-187	U2616D	S6130 ??? (set 182-187)
189	U2616D 45	Anrufbeantworter TC500 (answering machine TC500)
195	??	charset for F1200
200	U2365D	Systemmonitor mit Assembler und Disassembler sowie Editor/Debugger fu:r TINY-MPBASIC des U883
201	U2364D 45	ChessMaster Diamond (set 002+201; pic)
203	U2364D 45	elektronische Schreibmaschine S6120
204	U2632D	Z1013.16, Z1013.64 Betriebsprogramm 2.02 und A.2
207	U2716	Videotextdekoder-Nachruestsatz 3 von Geyer (==UL8611DC08_BM021 aus dem Nachruestsatz 4)
400	U2364D 45	ChessMaster Diamond PM10 module (pic)
403	U2364D 45	ChessMaster Diamond PM11 module (set 403, 607)
506	U2716	KC85/1, KC87 EPROM-Programmiermodul
507	U2716	KC85/1 Basic-Modul ROM 1 C000h-C7FFh (set 507-511) (diff. from M507: "memory size"->"memory end")
508	U2716	KC85/1 Basic-Modul ROM 2 C800h-CFFFh (set 507-511) (==M508)
509	U2716	KC85/1 Basic-Modul ROM 3 D000h-D7FFh (set 507-511) (==M509)
510	U2716	KC85/1 Basic-Modul ROM 4 D800h-DFFFh (set 507-511) (==M510)
511	U2716	KC85/1 Basic-Modul ROM 5 E000h-E7FFh (set 507-511) (==M511)
600	U2364D 45	Basic-Kern KC87, KC85/3, KC85/4, KC85-Basic Modul M006 (set 600-601) (== 507-510)
601	U2364D	KC85-Basic Modul M006 (set 600-601)
602	U2364D 45	KC87 OS 1.2 + Basic
604	U2364D 45	KC85/3 OS (CAOS 3.1)
605	U2364D	???? Vielen Dank Sven Heymann
606	U555C	board 062-9170/1 S6006 (set K390, BM 606)
607	U2364D 45	ChessMaster Diamond PM11 module (set 403, 607)
608	U2364D 45	KC87 OS 1.3 + Plotter-Basic
609	U2364D 45	???
610	U2364	???

A series

NN	Chip	Description
A006/00	U555C	?? terminal concentrator? for K8913 - ZRE board 012-7100 (set A006-A008)
A007/00	U555C	?? terminal concentrator? for K8913 - ZRE board 012-7100 (set A006-A008)
A008/00	U555C	?? terminal concentrator? for K8913 - ZRE board 012-7100 (set A006-A008)
A021-036	U555C	?? terminal concentrator? for K8913 - PFS board 012-7040 (set A021-A023/00, A024/07, A025/04, A026/06, A027/04, A028/06, A029-A032/04, ???, A034/07, A035/07, A036/04; pic)

H series

NN	Chip	Description
H537-542	rf2	K6411 "Dosiergeraet PG 10" board 020-0200 (set H537-H542, S543, S544, H545-H554, S560, S561; total 20 pcs)
H545-554	rf2	K6411 "Dosiergeraet PG 10" board 020-0200 (set H537-H542, S543, S544, H545-H554, S560, S561; total 20 pcs)

J series

NN	Chip	Description
J887	2732	keyboard K7672.04 - quarz 3686.4 kHz
J942	rf2	keyboard K7670.03 - quarz 9832 kHz

K series

NN	Chip	Description
K178-K182	U555C	board 062-8920/1 S6005 (set K178-K182)
K390	U555C	board 062-9170/1 S6006 (set K390, BM 606)

M series

NN	Chip	Description
M002	rf2	KC IDAS-Modul C000-C7FF (set M002-M006; pic)
M003	rf2	KC IDAS-Modul C800-CFFF (set M002-M006; pic)
M004	rf2	KC IDAS-Modul D000-D7FF (set M002-M006; pic)
M005	rf2	KC IDAS-Modul D800-DFFF (set M002-M006; pic)
M006	rf2	KC IDAS-Modul E000-E7FF (set M002-M006; pic)
M012	rf2	Z9001 Schreibmaschinen-Modul fuer S6005 690021.1 (bis 3. Quartal 1987)
M013	rf2	Z9001 Druckermodul 690025.2 fuer K6311/12
M112	rf2	BASIC-Erweiterung Plotter-BASIC KC87.2x und 3.x (Plotter-Grafik-Modul 1.40.690033.2)
M122	rf2	==M112
M208-223	2708	??? PFS board 012-7040 (set M208-M223, M351, M353)
M351	2708	??? PFS board 012-7040 (set M208-M223, M351, M353)
M353	2708	??? PFS board 012-7040 (set M208-M223, M351, M353)
M497	rf2	BASIC-Kern 84 Z9001 C000-C7FF (set M497-M501)
M498	rf2	BASIC-Kern 84 Z9001 C800-CFFF (set M497-M501)
M499	rf2	BASIC-Kern 84 Z9001 D000-D7FF (set M497-M501)
M500	rf2	BASIC-Kern 84 Z9001 D800-DFFF (set M497-M501)
M501	rf2	BASIC-Erweiterung 84 Z9001 E000-E7FF (set M497-M501)
M502	rf2	Z9001 Programmiermodul 1.40.690023.6
M503	rf2	Z9001 OS1.1 (set M503-M504)
M504	rf2	Z9001 OS1.1 (set M503-M504)
M505	rf2	Z9001 charset
M506	rf2	Z9001 Druckermodul 690006.8 fuer Thermodrucker TD40
M507	rf2	BASIC-Kern 85 KC87.1x C000-C7FF (set M507-M511) (see BM507 and BM600)
M508	rf2	BASIC-Kern 85 KC87.1x C800-CFFF (set M507-M511) ==BM508 see BM600
M509	rf2	BASIC-Kern 85 KC87.1x D000-D7FF (set M507-M511) ==BM509 see BM600
M510	rf2	BASIC-Kern 85 KC87.1x D000-DFFF (set M507-M511) ==BM510 see BM600
M511	rf2	BASIC-Erweiterung 85 KC87.1x E000-E7FF (set M507-M511) ==BM511
M512	rf2	KC85 OS1.2 (set M512-M513)
M513	rf2	KC85 OS1.2 (set M512-M513)
M581-586	U555	??? (set M581-M586; pic)

P series

NN	Chip	Description
P005	U555	AFS K5171 A7100 (set P005, P006, P864, P865; pic)
P006	U555	AFS K5171 A7100 (set P005, P006, P864, P865; pic)
P075	U555	ZVE K2664 051-2840 (set P075, P077, P096, P097, P079-P082; pic)
P077	U555	ZVE K2664 051-2840 (set P075, P077, P096, P097, P079-P082; pic)
P079	U555	ZVE K2664 051-2840 (set P075, P077, P096, P097, P079-P082; pic; set P079-P082, P808-P811; pic)
P080	U555	ZVE K2664 051-2840 (set P075, P077, P096, P097, P079-P082; pic; set P079-P082, P808-P811; pic)
P081	U555	ZVE K2664 051-2840 (set P075, P077, P096, P097, P079-P082; pic; set P079-P082, P808-P811; pic)
P082	U555	ZVE K2664 051-2840 (set P075, P077, P096, P097, P079-P082; pic; set P079-P082, P808-P811; pic)
P096	U555	ZVE K2664 051-2840 (set P075, P077, P096, P097, P079-P082; pic)
P097	U555	ZVE K2664 051-2840 (set P075, P077, P096, P097, P079-P082; pic)
P091	U555	Boot-ROM BUA K4165 051-1050 (set P091, P092; pic)
P092	U555	Boot-ROM BUA K4165 051-1050 (set P091, P092; pic)
P160	rt4	AIS K8060.01 051-1750
P327	74s188	ABG K7075 A7100/A7150/CM1910 (pic)
P328	74s188	ABG K7075 A7100/A7150/CM1910 (pic)
P329	74s188	ABG K7075 A7100/A7150/CM1910 (pic)
P502	82s571	ABG K7072 A7100/A7150/CM1910 (pic)
P503	82s571	ABG K7072 A7100/A7150/CM1910 (pic)
P505	82s131	ZVE K2771 A7100/A7150/CM1910
P515	74s571	ABG K7075 A7100/A7150/CM1910 (pic)
P690	74s287	AFP K5165 051-8850 (pic)
P808	U555	ZVE K2664 051-2840 (set P079-P082, P808-P811; pic)
P809	U555	ZVE K2664 051-2840 (set P079-P082, P808-P811; pic)
P810	U555	ZVE K2664 051-2840 (set P079-P082, P808-P811; pic)
P811	U555	ZVE K2664 051-2840 (set P079-P082, P808-P811; pic)
P854	2716	KES K5170.20 A7150 (set P854-P855; pic)
P855	2716	KES K5170.20 A7150 (set P854-P855; pic)
P864	rf2	AFS K5171.20 A7150 (set P005, P006, P864, P865; pic; set P864-P867; pic)
P865	rf2	AFS K5171.20 A7150 (set P005, P006, P864, P865; pic; set P864-P867; pic)
P866	2716	AFS K5171.20 A7150 (set P864-P867; pic; set P866, P867, P872, P873; pic)
P867	2716	AFS K5171.20 A7150 (set P864-P867; pic; set P866, P867, P872, P873; pic)
P868	2716	KES K5170.20 A7150 (set P868-P871; set P868, P869, P870, P876; pic)
P869	2716	KES K5170.20 A7150 (set P868-P871; set P868, P869, P870, P876; pic)
P870	2716	KES K5170.20 A7150 (set P868-P871; set P868, P869, P870, P876; pic)
P871	2716	KES K5170.20 A7150 (set P868-P871)
P872	2716	AFS K5171.20 A7150 (set P866, P867, P872, P873; pic)
P873	2716	AFS K5171.20 A7150 (set P866, P867, P872, P873; pic)
P876	2716	KES K5170.20 A7150 replace P871 for different hardware (set P868, P869, P870, P876; pic)
P877	2716	AFS K5171.20 A7150 (set P866, P867, P877, P878; pic)
P878	2716	AFS K5171.20 A7150 (set P866, P867, P877, P878; pic)
P879	2716	KES K5170.20 A7150 replace P870 ??? (set P868, P869, P879, P876; pic)

Q series

NN	Chip	Description
Q152	2764	KGS K7070 A7100 A7150?(pic)
Q153	2764	KGS K7070 A7150/CM1910 (pic)
Q154	2764	KGS K7070 A7150/CM1910 (pic)
Q208	2764	ABS K7071 (set Q208-Q211)
Q209	2764	ABS K7071 (set Q208-Q211)
Q210	2764	ABS K7071 (set Q208-Q211)
Q211	2764	ABS K7071 (set Q208-Q211)
Q259	2764	ZVE K2771 A7100 (set Q269-Q272; ACT 1.1, Monitor 1.1; pic)
Q260	2764	ZVE K2771 A7100 (set Q269-Q272; ACT 1.1, Monitor 1.1; pic)
Q261	2764	ZVE K2771 A7100 (set Q269-Q272; ACT 1.1, Monitor 1.1; pic)
Q262	2764	ZVE K2771 A7100 (set Q269-Q272; ACT 1.1, Monitor 1.1; pic)
Q265	2764	ZVE K2771 A7150/CM1910 (set Q265-Q268; ACT 2.1)
Q266	2764	ZVE K2771 A7150/CM1910 (set Q265-Q268; ACT 2.1)
Q267	2764	ZVE K2771 A7150/CM1910 (set Q265-Q268; ACT 2.1)
Q268	2764	ZVE K2771 A7150/CM1910 (set Q265-Q268; ACT 2.1)
Q269	2764	ZVE K2771 A7150/CM1910 (set Q269-Q272; ACT 2.2, Monitor 2.3; pic)
Q270	2764	ZVE K2771 A7150/CM1910 (set Q269-Q272; ACT 2.2, Monitor 2.3; pic)
Q271	2764	ZVE K2771 A7150/CM1910 (set Q269-Q272; ACT 2.2, Monitor 2.3; pic)
Q272	2764	ZVE K2771 A7150/CM1910 (set Q269-Q272; ACT 2.2, Monitor 2.3; pic)
Q273	2764	ZVE K2771 A7150/CM1910 (set Q273-Q276; ACT 2.3, Monitor 2.4)
Q274	2764	ZVE K2771 A7150/CM1910 (set Q273-Q276; ACT 2.3, Monitor 2.4)
Q275	2764	ZVE K2771 A7150/CM1910 (set Q273-Q276; ACT 2.3, Monitor 2.4)
Q276	2764	ZVE K2771 A7150/CM1910 (set Q273-Q276; ACT 2.3, Monitor 2.4)
Q657	74s287	ASP K8071 A7100/A7150/CM1910 (pic)
Q658	74s287	ASP K8071 A7100/A7150/CM1910 (pic)
Q659	74s287	ASP K8071 A7100/A7150/CM1910 (pic)

S series

NN	Chip	Description
S025	2708	??? board 012-7110 (set 025-031, may be 025-032)
S026	2708	??? board 012-7110 (set 025-031, may be 025-032)
S027	2708	??? board 012-7110 (set 025-031, may be 025-032)
S028	2708	??? board 012-7110 (set 025-031, may be 025-032)
S029	2708	??? board 012-7110 (set 025-031, may be 025-032)
S030	2708	??? board 012-7110 (set 025-031, may be 025-032)
S031	2708	??? board 012-7110 (set 025-031, may be 025-032)
S500	U2716	PC1715 bootloader (old?)
S501	U2716	PC1715 bootloader (old?)
S502	U2716	PC1715 bootloader
S543	rf2	K6411 "Dosiergeraet PG 10" board 020-0200 (set H537-H542, S543, S544, H545-H554, S560, S561; total 20 pcs)
S544	rf2	K6411 "Dosiergeraet PG 10" board 020-0200 (set H537-H542, S543, S544, H545-H554, S560, S561; total 20 pcs)
S550	U2716	PC1715W bootloader
S560	rf2	K6411 "Dosiergeraet PG 10" board 020-0200 (set H537-H542, S543, S544, H545-H554, S560, S561; total 20 pcs)
S561	rf2	K6411 "Dosiergeraet PG 10" board 020-0200 (set H537-H542, S543, S544, H545-H554, S560, S561; total 20 pcs)
S600	U2716	PC1715 keyboard K7658.01 (DE)
S602	U2716	PC1715 charset DE Z1
S605	U2716	PC1715 charset cyrillic Z6
S618	U2716	PC1715 keyboard K7658.12 dt.Textverarb.
S619	U2716	PC1715 chatset DE Z17
S620	U2716	PC1715 charset cyrillic Z16
S621	U2716	PC1715 keyboard K7658.03 Yugoslavia
S622	U2716	PC1715 charset Yugoslavia Z43
S623	U2716	PC1715 keyboard K7658.04 greek
S624	U2716	PC1715 charset greek
S625	U2716	PC1715 keyboard K7658.08 Bulgaria
S626	U2716	PC1715 charset Bulgaria Z26
S627	U2716	PC1715 keyboard K7658.09 lat-bulgarian
S628	U2716	PC1715 charset Bulgaria 2 Z48
S629	U2716	PC1715 keyboard K7658.07 Angola
S630	U2716	PC1715 charset Angola
S632	U2716	PC1715 keyboard Cuba
S633	U2716	PC1715 charset Cuba
S634	U2716	PC1715 keyboard K7658.05 Hungary
S635	U2716	PC1715 charset Hungary Z25
S638	U2716	PC1715 charset DE (WTX) Z2
S639	U2716	PC1715 keyboard DE (WTX)
S640	U2716	PC1715 keyboard K7658.10 polish
S641	U2716	PC1715 charset polish Z27
S642	2708	PC1715 keyboard cyrillic (board 05-033-4102)
S643	U2716	PC1715 charset cyrillic Z16
S705		EC1834 keyboard (->S715)
S706		MON adapter EC1834 (attributgenerator; ->S711)
S707	2708	MON adapter EC1834
S708		MON adapter EC1834 (charset RUSSASCI; ->S725)
S709		MON adapter EC1834 (charset BULSASCI; ->S727)
S710		MON adapter EC1834 (charset MAGYASCI; ->S728)
S711	2708	MON adapter EC1834 (attributgenerator; new of S706)
S712	rf	old version of keyboard controller from mainboard EC1834
S713	2764	version 06jun88 of BIOS EC1834 (set S713-714)
S714	2764	version 06jun88 of BIOS EC1834 (set S713-714)
S715		EC1834 keyboard (new of S705)
S716	rf2	new version of keyboard controller from mainboard EC1834
S717	2764	version 08aug88 of BIOS EC1834 (set S717-718)
S718	2764	version 08aug88 of BIOS EC1834 (set S717-718)
S720		MON adapter EC1834 (charset POL; codetables 448,852; ->S735)
S721	2764	version 01dec88 of BIOS EC1834 (set S721-722)
S722	2764	version 01dec88 of BIOS EC1834 (set S721-722)
S723	2764	version 09dec88 of BIOS EC1834 (set S723-724), Slave-PIC is not required
S724	2764	version 09dec88 of BIOS EC1834 (set S723-724), Slave-PIC is not required
S725		MON adapter EC1834 (charset RUS; codepages 407,855; ->S733)
S726	2764	MON adapter EC1834 (charset DDR; codepages 427,850)
S727		MON adapter EC1834 (charset BULG; codepages 435,855; ->S734)
S728	2764	MON adapter EC1834 (charset UVR; codepages 436,852)
S729	2764	MON adapter EC1834 (charset SFRJ; codepages 338,852)
S730	2764	MON adapter EC1834 (charset CSSR; codepages 442,852)
S731	2764	version 01oct89 of BIOS EC1834 (set S731-732), notw.fur kurzen COL-Adapter; Ermoeglicht Sperr. FD fur Urladen
S732	2764	version 01oct89 of BIOS EC1834 (set S731-732), notw.fur kurzen COL-Adapter; Ermoeglicht Sperr. FD fur Urladen
S733	2764	MON adapter EC1834 (charset RUS; codepages 407,855; new of S725)
S734	2764	MON adapter EC1834 (charset BULG; codepages 435,855; new of S727)
S735	2764	MON adapter EC1834 (charset POL; codepages 448,852; new of S720)

U series

NN	Chip	Description
U020	U555	??? (board 012-9230; pic)
U107-110	U555	graphic processor (board 012-3220)
U121-124	U555	??? (board 012-3290)
U177-180	U555	??? (board 012-3290)
U203	U555	board EC7922-4250(4255) (set U203-U209)
U204	U555	board EC7922-4250(4255) (set U203-U209)
U205	U555	board EC7922-4250(4255) (set U203-U209)
U206	U555	board EC7922-4250(4255) (set U203-U209)
U207	U555	board EC7922-4250(4255) (set U203-U209)
U208	U555	board EC7922-4250(4255) (set U203-U209)
U209	U555	board EC7922-4250(4255) (set U203-U209)
U262	2764	ZVE K2771.50 K8918 (set U262-U265; pic)
U263	2764	ZVE K2771.50 K8918 (set U262-U265; pic)
U264	2764	ZVE K2771.50 K8918 (set U262-U265; pic)
U265	2764	ZVE K2771.50 K8918 (set U262-U265; pic)
U307	2716	board 013-1600 ec7927.01M (set 307, 313-315)
U310	2716	board 013-1601 ec7927.01M (set 310-312, 320-321) ==147 ??
U311	2716	board 013-1601 ec7927.01M (set 310-312, 320-321) ==145 ??
U312	2716	board 013-1601 ec7927.01M (set 310-312, 320-321) ==146 ??
U313	2716	board 013-1600 ec7927.01M (set 307, 313-315)
U314	2716	board 013-1600 ec7927.01M (set 307, 313-315)
U315	2716	board 013-1600 ec7927.01M (set 307, 313-315)
U320	2716	board 013-1601 ec7927.01M (set 310-312, 320-321) ==148 ??
U321	2716	board 013-1601 ec7927.01M (set 310-312, 320-321) ==149 ??
U382	rf2	board 013-1014 K6405/CM6422
U386	rf2	board 013-1013 K6405/CM6422 (set 386-389)
U387	rf2	board 013-1013 K6405/CM6422 (set 386-389)
U388	rf2	board 013-1013 K6405/CM6422 (set 386-389)
U389	rf2	board 013-1013 K6405/CM6422 (set 386-389)

V series

NN	Chip	Description
V038	U555	K8913.03 ZRE variant 4? (set V038, V044, V045)
V044	U555	K8913.03 ZRE variant 4? (set V038, V044, V045)
V045	U555	K8913.03 ZRE variant 4? (set V038, V044, V045)
V171	U555	charset K8915 ABS K7023.10 K7024.30 (set V171, V172)
V172	U555	charset K8915 ABS K7023.10 K7024.30 (set V171, V172)

Y series

NN	Chip	Description
Y153	U555	K8913.03 ZRE variant 1 (set Y153-Y155) and variant 2 (set Y153, Y190, Y191)
Y154	U555	K8913.03 ZRE variant 1 (set Y153-Y155)
Y155	U555	K8913.03 ZRE variant 1 (set Y153-Y155)
Y163	U555	K8913.03 ZRE variant 3 (set Y163-Y165)
Y164	U555	K8913.03 ZRE variant 3 (set Y163-Y165)
Y165	U555	K8913.03 ZRE variant 3 (set Y163-Y165)
Y169-171	U555	K8915 ZRE (set Y169-171)
Y190	U555	K8913.03 ZRE variant 2 (set Y153, Y190, Y191)
Y191	U555	K8913.03 ZRE variant 2 (set Y153, Y190, Y191)
Y195-197	U555	K8915 ZRE (set Y195-197)
Y221	U555	K8911.80 ZRE (set Y221, Y2221, Y223)
Y2221	U555	K8911.80 ZRE (set Y221, Y2221, Y223), really Y2221, not Y222
Y223	U555	K8911.80 ZRE (set Y221, Y2221, Y223)
Y224-233	U555	K8911.80 PFS (set Y224-Y233)
Y411	U555	charset lat/cyr (big/small letters) ABS 045-8778 (set Y411, Y412)
Y412	U555	charset lat/cyr (big/small letters) ABS 045-8778 (set Y411, Y412)
Y602	2732	K8915HD ZVE 045-8762 (SCP, lat)
Y603	2732	K8915HD ZVE 045-8762 (A5230)
Y604	2732	K8915HD ZVE 045-8762 (A6422) == Y153+Y190+Y191
Y609	2732	K8915HD ZVE 045-8762 (SCP, lat/cyr)

EMR Mask

EMR	Bitmask	Chip	Description
8611	003	UD8611D	WM Elektronik 2
8611	004	UL8611DC08	Waschvollautomat VA861E
8611	008	UB8611D	HMK-T200 / ST3936
8611	013	U 8611DC08	Tastatur K7673.03 (cyr for EC1834)
8611	014	U 8611DC08	Tastatur K7673.02 (deu for EC1834)
8611	015	U 8611DC08	???
8611	021	UL8611DC08	8-Seiten-Videotextdekoder Nachrustsatz 4 von Geyer.
8810	004	UB8810D	Tastatur MC80.3x (prototyp des 8830 ??)
8810	005	UD8810D	BDG2000
8810	006	UB8810D	HMK-D100 Kassettendeck HMK100
8810	010	UD8810D	MTG1001
8810	011	UB8810D	UZG1-16
8810	012	UB8810D	HMK-D200/D210 Kassettendeck
8810	018	UB8810D	HMK-PA2205 Plattenspieler
8810	501	UB8810D	CAW-A/2A/W

Sources (not all):
ROMs und EPROMs aus DDR Produktion
Homecomputer DDR
www.tiffe.de
Ulrich Zander site

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