| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| SN74LS390N | Dual decade counter | Motorola | PDIP | 14 | 0°C | 70°C | 193 K |
| SN74LS395D | 4-bit shift register with 3-state outputs | Motorola | SOIC | 16 | 0°C | 70°C | 196 K |
| SN74LS395N | 4-bit shift register with 3-state outputs | Motorola | PDIP | 16 | 0°C | 70°C | 196 K |
| SN74LS398D | 4-bit shift register with 3-state outputs | Motorola | SOIC | 20 | 0°C | 70°C | 209 K |
| SN74LS398DW | 4-bit shift register with 3-state outputs | Motorola | SOIC | 20 | 0°C | 70°C | 209 K |
| SN74LS398N | 4-bit shift register with 3-state outputs | Motorola | PDIP | 20 | 0°C | 70°C | 209 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 |
| SN74LS540DW | Octal buffer/line driver with 3-state outputs | Motorola | SOIC | 20 | 0°C | 70°C | 203 K |
| SN74LS540N | Octal buffer/line driver with 3-state outputs | Motorola | PDIP | 20 | 0°C | 70°C | 203 K |
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