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IBM 486 Processors

A80486DX Vcc Package Level 1 Cache 5V 168—pin ceramic PGA 8KB write-through / write-back Core Speed Vcc TCASE 33MHz 5V 0°C - +85°C A80486DX-33 (63G9145) Core Speed Vcc TCASE 33MHz 5V 0°C - +85°C A80486DX-33 (63G9145)(No Intel Logo) Core Speed Vcc TCASE 33MHz 5V 0°C - +85°C 486DX-33 A80486SX Overdrive Vcc Package Level 1 Cache 5V 168—pin ceramic PGA 8KB write-through / write-back Core Speed Vcc TCASE 20MHz 5V 0°C - +85°C A80486SX-20 03G9565 Core Speed Vcc TCASE 25MHz 5V 0°C - +85°C A80486SX-25 (49G2988)(FRU 92F0147) A80486DX2 Vcc Package Level 1 Cache 5V 168—pin ceramic PGA 8KB write-through / write-back Core Speed Bus Speed Vcc TCASE 50MHz 25MHz 5V 0°C - +85°C 486DX2-50 03H4938 PQ Core Speed Bus Speed Vcc TCASE 66MHz 33MHz 5V 0°C - +85°C 486DX2-50 03H4946PQ (PQFP on PGA adapter) Core Speed Bus Speed Vcc TCASE 50MHz 25MHz 5V 0°C - +85°C 486DX2-50 FRU92F0147 49G2988 Core Speed Bus Speed Vcc TCASE 66MHz 33MHz 5V 0°C - +85°C 486DX2-66 FRU92F2582 49G2989 Core Speed Bus Speed Vcc TCASE CPUID Stepping 66MHz 33MHz 5V 0°C - +85°C 0435 aB0 or aC0 A80486DX2-66 03H4939 Core Speed Bus Speed Vcc TCASE CPUID Stepping 66MHz 33MHz 5V 0°C - +85°C 0435 aB0 or aC0 A80486DX2-66 03H4939 IBM 486DX2 Package Level 1 Cache 168—pin ceramic PGA (except where stated) 8KB write-through / write-back Core Speed Bus Speed Vcc TCASE Revision 50 ??? 25 ??? 5V 0°C - +85°C ??? 03H8404 Core Speed Bus Speed Vcc TCASE Revision 50 ??? 25 ??? 5V 0°C - +85°C 1.9 03H8581 (VER.1.9) Core Speed Bus Speed Vcc TCASE Revision 50MHz 25MHz 5V 0°C - +85°C 1.91 IBM 486DX2-50GP (03H8585) (VER.1.9.1) (White print) Originally "IBM26BL 486DX2-50GP (Blue Factory Heatsink)" Core Speed Bus Speed Vcc TCASE Revision 50MHz 25MHz 5V 0°C - +85°C 1.91 IBM 486DX2-50GP (03H8585) (Black print) Originally "IBM26BL 486DX2-50GP (Blue Factory Heatsink)" Core Speed Bus Speed Vcc TCASE Revision 50MHz 25MHz 5V 0°C - +85°C 1.91 IBM26BL 486DX2-50GP (Blue Factory Heatsink) Core Speed Bus Speed Vcc TCASE Revision   50MHz 25MHz 5V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 IBM26 486DX2-50GP Core Speed Bus Speed Vcc TCASE DIR 0 DIR 1 Revision Notes   50MHz 25MHz 3.3V ± 0.3V 0°C - +85°C 1B 31 4.1 Other possible revisions: 1.8, 1.9, 1.91, 4.0 IBM26BL 486DX2-V50GP Core Speed Bus Speed Vcc TCASE Revision   Package 50MHz 25MHz 3.3V ± 0.3V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 208—pin QFP IBM26BL 486DX2-V50QP Core Speed Bus Speed Vcc TCASE Revision 50MHz 25MHz 3.3V ± 0.3V 0°C - +85°C 4.2 IBM26 486-V150GA Core Speed Bus Speed Vcc TCASE Revision Package 50MHz 25MHz 3.3V ± 0.3V 0°C - +85°C 4.2 208—pin QFP IBM26 486-V150QA Core Speed Bus Speed Vcc TCASE Revision   50MHz 25MHz 3.3V ± 0.3V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 IBM26 486DX2-V50GP Core Speed Bus Speed Vcc TCASE Revision   66MHz 33MHz 5V 0°C - +85°C ??? 1.8, 1.9, 1.91, 4.0, 4.1 IBM26BL 486DX2-66GP Core Speed Bus Speed Vcc TCASE Revision   66MHz 33MHz 5V 0°C - +85°C ??? 1.8, 1.9, 1.91, 4.0, 4.1 IBM26 486DX2-66GP Core Speed Bus Speed Vcc TCASE Revision   66MHz 33MHz 3.3V ± 0.15V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 IBM26BL 486DX2-V66GP Core Speed Bus Speed Vcc TCASE Revision   Package 66MHz 33MHz 3.3V ± 0.15V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 208—pin QFP IBM26BL 486DX2-V66QP Core Speed Bus Speed Vcc TCASE Revision   66MHz 33MHz 3.3V ± 0.15V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 IBM26 486DX2-V66GP Core Speed Bus Speed Vcc TCASE Revision   Package 66MHz 33MHz 3.3V ± 0.15V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 208—pin QFP IBM26 486DX2-V66QP Core Speed Bus Speed Vcc TCASE DIR 0 DIR 1 Revision Notes   66MHz 33MHz 3.45V ± 0.15V 0°C - +85°C 1B 31 4.1 Other possible revisions: 1.8, 1.9, 1.91, 4.0 IBM26BL 486DX2-3.45V66GP Core Speed Bus Speed Vcc TCASE Revision   66MHz 33MHz 3.6V ± 0.15V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 IBM26BL 486DX2-3.6V66GP Core Speed Bus Speed Vcc TCASE Revision   Package 66MHz 33MHz 3.6V ± 0.15V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 208—pin QFP IBM26BL 486DX2-3.6V66QP Core Speed Bus Speed Vcc TCASE Revision   66MHz 33MHz 3.6V ± 0.15V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 IBM26486DX2-3-6V66GP Core Speed Bus Speed Vcc TCASE Revision   Package 66MHz 33MHz 3.6V ± 0.15V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 208—pin QFP IBM26486DX2-3-6V66QP Core Speed Bus Speed Vcc TCASE Revision   66MHz 33MHz 3.6V ± 0.15V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 IBM26BL 486DX2-3.6-66GP Core Speed Bus Speed Vcc TCASE Revision 66MHz 33MHz 3.3V ± 0.3V 0°C - +85°C 4.2 IBM26 486-V266GA Core Speed Bus Speed Vcc TCASE DIR 0 DIR 1 Revision Package 66MHz 33MHz 3.3V ± 0.3V 0°C - +85°C 1B 32 4.2 208—pin QFP IBM26 486-V266QA Core Speed Bus Speed Vcc TCASE Revision 66MHz 33MHz 3.45V ± 0.15V 0°C - +85°C ??? IBM26 486-V366GA Core Speed Bus Speed Vcc TCASE Revision 66MHz 33MHz 3.45V ± 0.15V 0°C - +85°C 4.4 IBM26 486-V366GB Core Speed Bus Speed Vcc TCASE Revision 66MHz 33MHz 3.6V ± 0.15V 0°C - +85°C 4.2 IBM26 486-V466GA Core Speed Bus Speed Vcc TCASE Revision Package 66MHz 33MHz 3.6V ± 0.15V 0°C - +85°C 4.2 208—pin QFP IBM26 486-V466QA Core Speed Bus Speed Vcc TCASE Revision 66MHz 33MHz 3.45V/3.6V 0°C - +85°C 4.2 IBM26 486-V666GA Bottom markings: COPYRIGHT USA 1993 CYRIX IBM 9314 P17020 26H3751 PQ Core Speed Bus Speed Vcc TCASE Revision Package 66MHz 33MHz 3.45V/3.6V 0°C - +85°C 4.2 208—pin QFP IBM26 486-V666QA Core Speed Bus Speed Vcc TCASE Revision 66MHz 33MHz 3.33V 0°C - +85°C 4.4 IBM26 486-2V266GB Core Speed Bus Speed Vcc TCASE Revision 66MHz 33MHz 3.33V 0°C - +85°C 4.4 IBM26 486-2V266GB Remarked from: IBM26 486-V180GB (?) Bottom markings: COPYRIGHT USA 1993 CYRIX IBM 9314 P28000 26H6556 PQ Core Speed Bus Speed Vcc TCASE Revision 66MHz 33MHz 3.45V ± 0.15V 0°C - +85°C 4.4 IBM26 486-2V366GB Core Speed Bus Speed Vcc TCASE Revision   80MHz 40MHz 3.3V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 IBM26BL 486DX2-V80GP Core Speed Bus Speed Vcc TCASE Revision   80MHz 40MHz 3.3V 0°C - +85°C 1.8, 1.9, 1.91, 4.0, 4.1 IBM26 486-V80GP Core Speed Bus Speed Vcc TCASE Revision 80MHz 40MHz 4V ± 0.2V 0°C - +85°C 4.2 IBM26 486-V380GA Core Speed Bus Speed Vcc TCASE Revision 80MHz 40MHz 3.45V ± 0.15V 0°C - +85°C 4.4 IBM26 486-V380GB Core Speed Bus Speed Vcc TCASE Revision 80MHz 40MHz 4V ± 0.2V 0°C - +85°C 4.2 IBM26 486-V580GA Core Speed Bus Speed Vcc TCASE Revision 80MHz 40MHz 3.45V ± 0.15V 0°C - +85°C 4.4 IBM26 486-2V380GB IBM 486DX4 Package Level 1 Cache 168—pin ceramic PGA (except where stated) 8KB write-through / write-back Core Speed Bus Speed Vcc TCASE Revision 75MHz 25MHz 3.45V ± 0.15V 0°C - +85°C 4.6 IBM26 486-4V375GC Core Speed Bus Speed Vcc TCASE Revision 75MHz 25MHz 3.45V ± 0.15V 0°C - +85°C 4.6 IBM26 486-4V375GIC Core Speed Bus Speed Vcc TCASE Revision Package 75MHz 25MHz 3.45V ± 0.15V 0°C - +85°C 4.6 208—pin CQFP IBM26 486-4V375QIC (QFP) Core Speed Bus Speed Vcc TCASE Revision 100MHz 33MHz 3.45V ± 0.15V 0°C - +85°C 4.6 ??? 486DX4-100 (32G6633) Core Speed Bus Speed Vcc TCASE Revision 100MHz 33MHz 3.45V ± 0.15V 0°C - +85°C 4.6 IBM26 486-4V3100GC Core Speed Bus Speed Vcc TCASE Revision 100MHz 33MHz 3.45V ± 0.15V 0°C - +85°C 4.6 IBM26 486-4V3100GIC Core Speed Bus Speed Vcc TCASE Revision Package 100MHz 33MHz 3.45V ± 0.15V 0°C - +85°C 4.6 208—pin CQFP IBM26 486-4V3100QIC Core Speed Bus Speed Vcc TCASE Revision 100MHz 33MHz 3.6V ± 0.15V 0°C - +85°C 4.6 IBM26 486-4V4100GC Core Speed Bus Speed Vcc TCASE Revision 100MHz 33MHz 3.6V ± 0.15V 0°C - +85°C 4.6 IBM26 486-4V4100GIC IBM 5x86 Package Level 1 Cache 168—pin ceramic PGA except where stated. 16KB write-through / write-back Core Speed Bus Speed Vcc TCASE 75MHz 25MHz 3.45V 0°C - +85°C IBM 5x86-3V375HF (Blue Factory Heatsink) Core Speed Bus Speed Vcc TCASE Package 100MHz 33MHz 3.3V (3.15V - 3.5V) 0°C - +85°C ??? 208-pin PQFP IBM26 5x86-3V2100QF Core Speed Bus Speed Vcc TCASE 100MHz 33MHz 3.45V ± 0.15V 0°C - +85°C IBM26 5x86-3V3100GB Core Speed Bus Speed Vcc TCASE 100MHz 33MHz 3.45V ± 0.15V 0°C - +85°C IBM26 5x86-3V3100GF Core Speed Bus Speed Vcc TCASE Package 100MHz 33MHz 3.45V ± 0.15V 0°C - +85°C 208-pin PQFP IBM26 5x86-3V3100QF Core Speed Bus Speed Vcc TCASE 100MHz 33MHz 3.45V ± 0.15V 0°C - +85°C IBM26 5x86-3V3100HA Core Speed Bus Speed Vcc TCASE 100MHz 33MHz 3.45V ± 0.15V 0°C - +85°C IBM26 5x86-3V3100HB (Blue Factory Heatsink) Core Speed Bus Speed Vcc TCASE 100MHz 33MHz 3.45V ± 0.15V 0°C - +85°C IBM26 5x86-3V3100HF (Blue Factory Heatsink) Core Speed Bus Speed Vcc TCASE 120MHz 40MHz 3.45V ± 0.15V 0°C - +85°C IBM26 5x86-3V3120GF