1.Enhanced performance of on-chip components.

1)

Resolution of A/D converter increased to 12 bits: the 12-bit resolution allows precise control of motor drive current in 4,096 steps, compared to the 10-bit resolution and 1,024 control steps of current devices.

2)

Op-amp capable of 13 control steps: the precision of the op-amp was increased from the current two steps to 13 steps, an approximately six-fold increase.

3)

Comparator capable of measuring overvoltage and undervoltage with respect to a reference level.

These features allow easier and finer-grained implementation of motor control applications when compared to corresponding devices in the current series.

2.Integration of previously discrete components, to reduce part counts

1)

Integrated regulator IC: the regulator that generates the internal voltage of the microcontroller is now integrated, replacing a formerly discrete part.

2)

Integrated reset IC and LVI (Low Voltage Indicator) circuit: the reset IC and LVI circuit are now integrated, replacing formerly discrete parts.