The PD75068 is a member of the 75X series of 4-bit single-chip microcomputers. The minimum instruction execution time of the PD75068's CPU is 0.95 s. In addition to this high-speed capability, the chip contains an A /D converter and furnishes high-performance functions such as the serial bus interface (SBI) function compliant with the NEC standard format, providing powerful features and high cost performance. The PD75068(A) is a high-reliability version of the PD75068. NEC also provides PROM versions suitable for small-scale production or evaluation samples in system development. The PD75P068 is the PROM version for the PD75064, 75066, 75068, and the PD75P068(A) is that for the PD75064(A), 75066(A), 75068(A). The detailed function descriptions are described in the document below. Please make sure to read this document before starting design.