Issue No.02 - February (1980 vol.29)
T. Funabashi , Central Research Laboratory, Hitachi Ltd.
A peripheral interface unit for a microcomputer control system fabricated by a standard n-channel silicon-gate enhancement/ depletion MOS process is described. This unit can accept analog and digital inputs, generate pulse outputs, and multiply. The analog input capability is made possible by an on-chip A/D converter using a constant slope approach with an external capacitor. This converter can pe
K. Takagi, T. Tsukada, H. Nakamura, T. Funabashi, "An NMOS Microcomputer Peripheral Interface Unit Incorporating an Analog-to-Digital Converter", IEEE Transactions on Computers, vol.29, no. 2, pp. 102-107, February 1980, doi:10.1109/TC.1980.1675533