| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| 74HC390NB | Dual decade ripple counter | Philips-Semiconductors | SOT38 | - | - | - | 49 K |
| 74HC390PW | Dual decade ripple counter | Philips-Semiconductors | SOT403 | - | - | - | 49 K |
| 74HC390U | Dual decade ripple counter | Philips-Semiconductors | - | - | - | - | 49 K |
| 74HC393D | Dual 4-bit binary ripple counter | Philips-Semiconductors | SOT108 | - | - | - | 46 K |
| 74HC393NB | Dual 4-bit binary ripple counter | Philips-Semiconductors | SOT27 | - | - | - | 46 K |
| 74HCT390D | Dual decade ripple counter | Philips-Semiconductors | SOT109 | - | - | - | 49 K |
| 74HCT390D | Dual decade ripple counter | Philips-Semiconductors | SOT109 | - | - | - | 49 K |
| 74HCT390DB | Dual decade ripple counter | Philips-Semiconductors | SOT338 | - | - | - | 49 K |
| 74HCT390N | Dual decade ripple counter | Philips-Semiconductors | SOT38 | - | - | - | 49 K |
| 74HCT390U | Dual decade ripple counter | Philips-Semiconductors | - | - | - | - | 49 K |
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