| Компонент | Описание | Производитель | PDF | Buy |
| SN74LS669 | SYNCHRONOUS 4-BIT UP/DOWN COUNTER | ON Semiconductor |  |  |
| SN74LS669 | SYNCHRONOUS 4-BIT UP/DOWN COUNTERS | Texas Instruments | | |
| SN74LS669D | SYNCHRONOUS 4-BIT UP/DOWN COUNTER | Motorola, Inc | | |
| SN74LS669D | SYNCHRONOUS 4-BIT UP/DOWN COUNTER | ON Semiconductor | | |
| SN74LS669D | SYNCHRONOUS 4-BIT UP/DOWN COUNTERS | Texas Instruments | | |
| SN74LS669D | SYNCHRONOUS 4-BIT UP/DOWN COUNTER | ON Semiconductor | | |
| SN74LS669J | SYNCHRONOUS 4-BIT UP/DOWN COUNTER | ON Semiconductor | | |
| SN74LS669N | SYNCHRONOUS 4-BIT UP/DOWN COUNTER | Motorola, Inc | | |
| SN74LS669N | SYNCHRONOUS 4-BIT UP/DOWN COUNTER | ON Semiconductor | | |
| SN74LS669N | SYNCHRONOUS 4-BIT UP/DOWN COUNTERS | Texas Instruments | | |
| SN74LS669N | SYNCHRONOUS 4-BIT UP/DOWN COUNTER | ON Semiconductor | | |
