SN74LS669 и другие
| Компонент | Описание | Производитель | |
| SN74LS668 | SYNCHRONOUS 4-BIT UP/DOWN COUNTERS |
Texas Instruments |
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| SN74LS668D | SYNCHRONOUS 4-BIT UP/DOWN COUNTERS |
Texas Instruments |
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| SN74LS668N | SYNCHRONOUS 4-BIT UP/DOWN COUNTERS |
Texas Instruments |
|
| SN74LS669 | SYNCHRONOUS 4-BIT UP/DOWN COUNTER |
ON Semiconductor |
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| SN74LS669 | SYNCHRONOUS 4-BIT UP/DOWN COUNTERS |
Texas Instruments |
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| SN74LS669D | SYNCHRONOUS 4-BIT UP/DOWN COUNTERS |
Texas Instruments |
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| SN74LS669D | SYNCHRONOUS 4-BIT UP/DOWN COUNTER |
ON Semiconductor |
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| SN74LS669D | SYNCHRONOUS 4-BIT UP/DOWN COUNTER |
ON Semiconductor |
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| SN74LS669D | SYNCHRONOUS 4-BIT UP/DOWN COUNTER |
Motorola, Inc |
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| SN74LS669J | SYNCHRONOUS 4-BIT UP/DOWN COUNTER |
ON Semiconductor |
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