| CD4020BCN | | part details | | NSC | | 8942 | | Ships Today | | 100 |
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| CD4025BE | | part details | | RCA | | 9419 | | Ships Today | | 15 |
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| CD4028BPWR | | part details | | TI | | 1040 | | Avail | | 2000 |
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| HF4028BP | | part details | | PHILIPS | | | Avail | | 1996 |
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| CD4028BPWR | | part details | | T.I | | 0427 | | Avail | | 1677 |
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| TC4028BP | | part details | | | | Avail | | 1000 |
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| HEF4028BP | | part details | | PHILIPS | | 98 | | Avail | | 825 |
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| HEF4028BP | | part details | | PHILIPS | | | Avail | | 551 |
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| HEF4028BP | | part details | | SIGNET | | 84 | | Avail | | 547 |
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| CD4028BPWR | | part details | | TI | | 1040 | | Avail | | 492 |
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| HEF4028BP | | part details | | PHILIPS | | 9219 | | Avail | | 475 |
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| TC4028BP | | part details | | TOSHIBA | | 1991+ | | Avail | | 220 |
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