| 制造商 | 部件名 | 数据表 | 功能描述 |
 National Semiconductor ... | DM74LS47N |  121Kb/5P | BCD TO 7-SEGMENT DECODER/DRIVER |
 National Semiconductor ... | DM74LS471J |  121Kb/ 4P | (256 X 8) 2048-BIT TTL PROM |
| DM74LS471N |  121Kb/ 4P | (256 X 8) 2048-BIT TTL PROM |
| DM74LS471V |  121Kb/ 4P | (256 X 8) 2048-BIT TTL PROM |
 National Semiconductor ... | DM74LS47M |  121Kb/ 5P | BCD TO 7-SEGMENT DECODER/DRIVER |
 National Semiconductor ... | DM74LS40 |  93Kb/ 4P | Dual 4-Input NAND Buffer |
 National Semiconductor ... | DM74LS42 |  128Kb/ 6P | Decimal Decoders |
| DM74LS42M |  128Kb/ 6P | Decimal Decoders |
| DM74LS42N |  128Kb/ 6P | Decimal Decoders |
| DM74LS447 |  126Kb/ 6P | BCD to 7-Segment Decoder/Driver with Open-Collector Outputs |
| DM74LS447 |  67Kb/ 3P | BCD to 7-Segment Decoder/Driver |
| DM74LS447M |  126Kb/ 6P | BCD to 7-Segment Decoder/Driver with Open-Collector Outputs |
| DM74LS447N |  126Kb/ 6P | BCD to 7-Segment Decoder/Driver with Open-Collector Outputs |
| DM74LS450 |  128Kb/ 6P | 16:1 Multiplexer |
| DM74LS450J |  128Kb/ 6P | 16:1 Multiplexer |
| DM74LS450N |  128Kb/ 6P | 16:1 Multiplexer |