| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| HEF4020BD | 14-stage binary counter | Philips-Semiconductors | SOT74 | - | - | - | 61 K |
| HEF4020BDB | 14-stage binary counter | Philips-Semiconductors | SOT74 | - | - | - | 61 K |
| HEF4020BP | 14-stage binary counter | Philips-Semiconductors | SOT38 | - | - | - | 61 K |
| HEF4020BPB | 14-stage binary counter | Philips-Semiconductors | SOT38 | - | - | - | 61 K |
| HEF4020BT | 14-stage binary counter | Philips-Semiconductors | SOT109 | - | - | - | 61 K |
| HEF4020BU | 14-stage binary counter | Philips-Semiconductors | - | - | - | - | 61 K |
| HEF4021BD | 8-bit static shift register | Philips-Semiconductors | SOT74 | - | - | - | 70 K |
| HEF4021BDB | 8-bit static shift register | Philips-Semiconductors | SOT74 | - | - | - | 70 K |
| HEF4021BP | 8-bit static shift register | Philips-Semiconductors | SOT38 | - | - | - | 70 K |
| HEF4021BT | 8-bit static shift register | Philips-Semiconductors | SOT109 | - | - | - | 70 K |
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