| 925161 | M27C256B-90F3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925162 | M27C256B-90F6 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925163 | M27C256B-90F6 | 256 KBIT (32KB X8) UV EPROM AND OTP EPROM | ST Microelectronics |
| 925164 | M27C256B-90F6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925165 | M27C256B-90F6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925166 | M27C256B-90F7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925167 | M27C256B-90F7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925168 | M27C256B-90N1 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925169 | M27C256B-90N1TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925170 | M27C256B-90N1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925171 | M27C256B-90N1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925172 | M27C256B-90N3 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925173 | M27C256B-90N3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925174 | M27C256B-90N3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925175 | M27C256B-90N3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925176 | M27C256B-90N6 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925177 | M27C256B-90N6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925178 | M27C256B-90N6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925179 | M27C256B-90N6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
|
| 925180 | M27C256B-90N7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925181 | M27C256B-90N7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925182 | M27C256B-90XB1 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925183 | M27C256B-90XB1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925184 | M27C256B-90XB1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925185 | M27C256B-90XB3 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925186 | M27C256B-90XB3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925187 | M27C256B-90XB3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925188 | M27C256B-90XB6 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925189 | M27C256B-90XB6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925190 | M27C256B-90XB6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925191 | M27C256B-90XB7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925192 | M27C256B-90XB7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925193 | M27C256B-90XC1 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925194 | M27C256B-90XC1TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925195 | M27C256B-90XC1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925196 | M27C256B-90XC1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925197 | M27C256B-90XC3 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925198 | M27C256B-90XC3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925199 | M27C256B-90XC3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925200 | M27C256B-90XC3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
