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| DS2406 OTP EPROM can't be programmed while the DS2430 is installed. Note: this does not affect normal 2406 operation, only its high-voltage OTP EPROM programming. | Although both the DS2406 and DS2430 have some 'OTP' memory, they require different programming voltages. The DS2430 must be removed to allow the higher programming voltage for the DS2406 OTP memory. Next revision will have a paste jumper to isolate the DS2430 from the 1-Wire network. |
| DS9502 clamps the DS2406 OTP programming voltage | Next revision will have a paste jumper to isolate the DS9502 from the 1-Wire network. |
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| Plugging the 8x1W board into a TINI system causes it to reboot | This is normal and is due to the large 470 uF electrolytic capacitor C1 on the board charging up. This capacitor is needed when the cable to the board is much longer than six feet, and you are using the buzzer, or switching some other noisy load on. If you are not using the buzzer, you can remove the electrolytic capacitor. There are still four small 100 nF caps, one on each DS2406 for local bypassing. Don't remove these! |
| After a power cycle or brownout, the DS2406 outputs come on to their last state, rather than resetting to "off". | The DS2406 can tolerate quite a low voltage before it resets internally. The on board capacitors and those internal to the 2406 will hold a charge for a few seconds when power is removed from the 8x1-Wire board. |