| Nr. | Part Name | Description | Manufacturer by |
| 678801 | M27C4001-12N6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678802 | M27C4001-12N6TR | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678803 | M27C4001-12N6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678804 | M27C4001-12N6X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678805 | M27C4001-12XB1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678806 | M27C4001-12XB1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678807 | M27C4001-12XB1X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678808 | M27C4001-12XB6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678809 | M27C4001-12XB6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678810 | M27C4001-12XB6X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678811 | M27C4001-12XC1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678812 | M27C4001-12XC1TR | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678813 | M27C4001-12XC1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678814 | M27C4001-12XC1X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678815 | M27C4001-12XC6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678816 | M27C4001-12XC6TR | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678817 | M27C4001-12XC6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678818 | M27C4001-12XC6X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678819 | M27C4001-12XF1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678820 | M27C4001-12XF1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678821 | M27C4001-12XF1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678822 | M27C4001-12XF1X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678823 | M27C4001-12XF6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678824 | M27C4001-12XF6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678825 | M27C4001-12XF6X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678826 | M27C4001-12XL1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678827 | M27C4001-12XL1TR | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678828 | M27C4001-12XL1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678829 | M27C4001-12XL1X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678830 | M27C4001-12XL6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678831 | M27C4001-12XL6TR | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678832 | M27C4001-12XL6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678833 | M27C4001-12XL6X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678834 | M27C4001-12XN1TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678835 | M27C4001-12XN1TR | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678836 | M27C4001-12XN1X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678837 | M27C4001-12XN1X | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678838 | M27C4001-12XN6TR | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
| 678839 | M27C4001-12XN6TR | 4 Mbit (512Kb x 8) EPROM, 120ns | SGS Thomson Microelectronics |
| 678840 | M27C4001-12XN6X | 4 Mbit 512Kb x 8 UV EPROM and OTP EPROM | ST Microelectronics |
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