| 925201 | M27C256B-90XC6 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925202 | M27C256B-90XC6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925203 | M27C256B-90XC6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925204 | M27C256B-90XC6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925205 | M27C256B-90XC7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925206 | M27C256B-90XC7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925207 | M27C256B-90XF1 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925208 | M27C256B-90XF1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925209 | M27C256B-90XF1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925210 | M27C256B-90XF3 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925211 | M27C256B-90XF3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925212 | M27C256B-90XF3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925213 | M27C256B-90XF6 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925214 | M27C256B-90XF6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925215 | M27C256B-90XF6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925216 | M27C256B-90XF7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925217 | M27C256B-90XF7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925218 | M27C256B-90XN1 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925219 | M27C256B-90XN1TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
|
| 925220 | M27C256B-90XN1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925221 | M27C256B-90XN1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925222 | M27C256B-90XN3 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925223 | M27C256B-90XN3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925224 | M27C256B-90XN3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925225 | M27C256B-90XN3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925226 | M27C256B-90XN6 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925227 | M27C256B-90XN6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 925228 | M27C256B-90XN6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925229 | M27C256B-90XN6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925230 | M27C256B-90XN7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925231 | M27C256B-90XN7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925232 | M27C257 | ADDRESS LATCHED 256K (32K x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 925233 | M27C320 | 32 Mbit (4Mb x8 or 2Mb x16) OTP EPROM | SGS Thomson Microelectronics |
| 925234 | M27C320 | 32 MBIT (4MB X8 OR 2MB X16) OTP EPROM | SGS Thomson Microelectronics |
| 925235 | M27C320 | 32 MBIT (4MB X8 OR 2MB X16) OTP EPROM | ST Microelectronics |
| 925236 | M27C320-100M1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM | ST Microelectronics |
| 925237 | M27C320-100N1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM | ST Microelectronics |
| 925238 | M27C320-120M1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM | ST Microelectronics |
| 925239 | M27C320-120N1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM | ST Microelectronics |
| 925240 | M27C320-80M1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM | ST Microelectronics |
