| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | HEF40193B | 4-bit up/down binary counter | 120K |
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| 2 | HEF40193B | 4-bit up/down binary counter | 124K |
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| 3 | HEF40193BD | 4-bit up/down binary counter | 124K |
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| 4 | HEF40193BF | 4-bit up/down binary counter | 124K |
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| 5 | HEF40193BN | 4-bit up/down binary counter | 124K |
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| 6 | HEF40193BP | IC-4000 LOCMOS | 120K |
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| 7 | HEF40193BP | 4-bit up/down binary counter | 124K |
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| 8 | HEF40193BPN | Synchronous Up/Down Counter | 168K |
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| 9 | HEF40193BT | COUNTER|UP/DOWN|4-BIT BINARY|CMOS|SOP|16PIN|PLASTIC | 120K |
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| 10 | HEF40193BT | 4-bit up/down binary counter | 124K |
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| 11 | HEF40193BTD | Synchronous Up/Down Counter | 168K |
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| 12 | HEF40193BTD-T | Synchronous Up/Down Counter | 168K |
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