The PD750008 is one of the 75XL series 4-bit single-chip microcontrollers, which provide data processing capability equal to that of an 8-bit microcontroller. The PD750008 is an advanced model of the PD75008. It features an enhanced CPU function and enables highspeed operation at a low voltage of 2.2 V. It can be substituted for the PD75008. In addition, it is best suited to applications using batteries. The PD750008(A) has a higher reliability than the PD750008. A built-in one-time PROM product, PD75P0016, is also available. It is suitable for small-scale production and evaluation of application systems. The following user's manual describes the details of the functions of the PD750008. Be sure to read it before designing application systems.