M61047FP

Rev.2.00 Mar 04, 2005 page 12 of 23

Analog Output Selector

Analog output selector block is shown in Figure 4. The command from microcomputer determines whether GND is

outputted to an analog terminal, or the voltage chosen in the battery voltage detection circuit is outputted.

At the time of GND output, since the battery voltage detection circuit stops, M61047FP goes into power save mode.

From Serial to Parallel

conversion circuit

ANALOG

–

+

Battery voltage

detection circuit

Analog output

selector

VREF

Figure 4 Analog Output Selector