| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| SN74LS40D | Dual 4-input NAND buffer | Motorola | SOIC | 14 | 0°C | 70°C | 45 K |
| SN74LS40N | Dual 4-input NAND buffer | Motorola | PDIP | 14 | 0°C | 70°C | 45 K |
| SN74LS42D | One-of-ten decoder | Motorola | SOIC | 16 | 0°C | 70°C | 77 K |
| SN74LS42N | One-of-ten decoder | Motorola | PDIP | 16 | 0°C | 70°C | 77 K |
| SN74LS47 | bcd-to-seven-segment decoders/drivers. open-collector. 15V | Texas-Instruments | N | 16 | 0°C | 70°C | 583 K |
| SN74LS47D | BCD to 7-segment decoder/driver | Motorola | SOIC | 16 | 0°C | 70°C | 105 K |
| SN74LS48D | BCD to 7-segment decoder/driver | Motorola | SOIC | 16 | 0°C | 70°C | 100 K |
| SN74LS48N | BCD to 7-segment decoder/driver | Motorola | PDIP | 16 | 0°C | 70°C | 100 K |
| SN74LS490D | Dual decade counter | Motorola | SOIC | 16 | 0°C | 70°C | 161 K |
| SN74LS490N | Dual decade counter | Motorola | PDIP | 16 | 0°C | 70°C | 161 K |
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