| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| SN74LS290D | Decade counter; 4-bit binary counter | Motorola | SOIC | 16 | 0°C | 70°C | 205 K |
| SN74LS290N | Decade counter; 4-bit binary counter | Motorola | PDIP | 16 | 0°C | 70°C | 205 K |
| SN74LS293D | Decade counter; 4-bit binary counter | Motorola | SOIC | 16 | 0°C | 70°C | 205 K |
| SN74LS293N | Decade counter; 4-bit binary counter | Motorola | PDIP | 16 | 0°C | 70°C | 205 K |
| SN74LS298D | Quad 2-input multiplexer with storage | Motorola | SOIC | 16 | 0°C | 70°C | 187 K |
| SN74LS298N | Quad 2-input multiplexer with storage | Motorola | PDIP | 16 | 0°C | 70°C | 187 K |
| SN74LS299DW | 8-bit shift/storage register with 3-stage outputs | Motorola | SOIC | 20 | 0°C | 70°C | 255 K |
| SN74LS645N | Octal Bus Transceivers | ON-Semiconductor | PDIP | 20 | - | - | 141 K |
| SN74LS670D | 4 x 4 Register File With 3-State Outputs | ON-Semiconductor | SOIC | 16 | - | - | 129 K |
| SN74LS670N | 4 x 4 Register File With 3-State Outputs | ON-Semiconductor | PDIP | 16 | - | - | 129 K |
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