Motorola suggests this circuit in an 80's documentation. The circuit uses an inverter to produce a higher voltage for 9 V battery charge from a single cell.
The circuit presented here shows how two flip-flops of a 4027 can be connected to perform a...
This circuit is from old documentation, but can be adapted to use modern components. Power...
The I2C EERAM Memory is a Low - Cost NVSRAM that Eliminates the Need for an External Battery to...