I am wondering what voltage is considered low on VBAT pin. I found information, that VCC below 2.6V should be avoided. But I haven't found anything about VBAT limits. I am wondering because on OLIMEX dev board, there is diode in series with batterry. Batteries on the market are available only as 3V, so the voltage I can count on should be 2.5V. robert
Message
battery voltage level
2005-11-07 by rseku