| 1250721 | NM27C512Q200 | 524,288-bit (64K x 8) high performance CMOS EPROM, 200ns | National Semiconductor |
| 1250722 | NM27C512Q250 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250723 | NM27C512Q70 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250724 | NM27C512Q90 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250725 | NM27C512Q90 | 524,288-bit (64K x 8) high performance CMOS EPROM, 90ns | National Semiconductor |
| 1250726 | NM27C512QE120 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250727 | NM27C512QE120 | 524,288-bit (64K x 8) high performance CMOS EPROM, 120ns | National Semiconductor |
| 1250728 | NM27C512QE150 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250729 | NM27C512QE150 | 524,288-bit (64K x 8) high performance CMOS EPROM, 150ns | National Semiconductor |
| 1250730 | NM27C512QE200 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250731 | NM27C512QE200 | 524,288-bit (64K x 8) high performance CMOS EPROM, 200ns | National Semiconductor |
| 1250732 | NM27C512QE250 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250733 | NM27C512QE90 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250734 | NM27C512QE90 | 524,288-bit (64K x 8) high performance CMOS EPROM, 90ns | National Semiconductor |
| 1250735 | NM27C512QM200 | 524,288-bit (64K x 8) high performance CMOS EPROM, 200ns | National Semiconductor |
| 1250736 | NM27C512V100 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250737 | NM27C512V120 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250738 | NM27C512V120 | 524,288-bit (64K x 8) high performance CMOS EPROM, 120ns | National Semiconductor |
| 1250739 | NM27C512V150 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
|
| 1250740 | NM27C512V150 | 524,288-bit (64K x 8) high performance CMOS EPROM, 150ns | National Semiconductor |
| 1250741 | NM27C512V200 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250742 | NM27C512V200 | 524,288-bit (64K x 8) high performance CMOS EPROM, 200ns | National Semiconductor |
| 1250743 | NM27C512V70 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250744 | NM27C512V90 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250745 | NM27C512V90 | 524,288-bit (64K x 8) high performance CMOS EPROM, 90ns | National Semiconductor |
| 1250746 | NM27C512VE120 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250747 | NM27C512VE120 | 524,288-bit (64K x 8) high performance CMOS EPROM, 120ns | National Semiconductor |
| 1250748 | NM27C512VE150 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250749 | NM27C512VE150 | 524,288-bit (64K x 8) high performance CMOS EPROM, 150ns | National Semiconductor |
| 1250750 | NM27C512VE200 | 524,288-Bit (64K x 8) High Performance CMOS EPROM | Fairchild Semiconductor |
| 1250751 | NM27C512VE200 | 524,288-bit (64K x 8) high performance CMOS EPROM, 200ns | National Semiconductor |
| 1250752 | NM27C512VE90 | 524,288-bit (64K x 8) high performance CMOS EPROM, 90ns | National Semiconductor |
| 1250753 | NM27LV010 | 1,048,576-Bit (128k x 8) Low Voltage EPROM | National Semiconductor |
| 1250754 | NM27LV010B | 1,048,576-Bit (128K x 8) Low Voltage EPROM | National Semiconductor |
| 1250755 | NM27LV210 | 1,048,576-Bit (64k x 16) Low Voltage EPROM | National Semiconductor |
| 1250756 | NM27LV210V200 | 1,048,576-Bit (64k x 16) Low Voltage EPROM [Life-time buy] | Fairchild Semiconductor |
| 1250757 | NM27LV210V250 | 1,048,576-Bit (64k x 16) Low Voltage EPROM [Life-time buy] | Fairchild Semiconductor |
| 1250758 | NM27P040 | 4,194,304-Bit (512K x 8) Processor Oriented CMOS EPROM | National Semiconductor |
| 1250759 | NM27P040Q150 | 4,194,304-Bit (512K x 8) Processor Oriented CMOS EPROM | National Semiconductor |
| 1250760 | NM27P040Q170 | 4,194,304-Bit (512K x 8) Processor Oriented CMOS EPROM | National Semiconductor |
