| 924561 | M27C256B-20N1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924562 | M27C256B-20N3 | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924563 | M27C256B-20N3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924564 | M27C256B-20N3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924565 | M27C256B-20N3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924566 | M27C256B-20N6 | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924567 | M27C256B-20N6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924568 | M27C256B-20N6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924569 | M27C256B-20N6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924570 | M27C256B-20N7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924571 | M27C256B-20N7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924572 | M27C256B-20XB1 | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924573 | M27C256B-20XB1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924574 | M27C256B-20XB1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924575 | M27C256B-20XB3 | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924576 | M27C256B-20XB3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924577 | M27C256B-20XB3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924578 | M27C256B-20XB6 | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924579 | M27C256B-20XB6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
|
| 924580 | M27C256B-20XB6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924581 | M27C256B-20XB7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924582 | M27C256B-20XB7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924583 | M27C256B-20XC1 | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924584 | M27C256B-20XC1TR | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924585 | M27C256B-20XC1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924586 | M27C256B-20XC1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924587 | M27C256B-20XC3 | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924588 | M27C256B-20XC3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924589 | M27C256B-20XC3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924590 | M27C256B-20XC3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924591 | M27C256B-20XC6 | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924592 | M27C256B-20XC6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924593 | M27C256B-20XC6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924594 | M27C256B-20XC6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924595 | M27C256B-20XC7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924596 | M27C256B-20XC7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924597 | M27C256B-20XF1 | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 924598 | M27C256B-20XF1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924599 | M27C256B-20XF1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 924600 | M27C256B-20XF3 | 256 Kbit (32Kb x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
