Abstract: According to the character of bioelectrical information which has low or superlow frenquency, long recording time, we designed this medical data processor (MDP). With its properties of high speed data acquisition, large memory capacity and some useful functions, it has played a important part in the bioelectrical research work. Considering the properties of hardware and software and the coordination between them, We have succesfully solved the contradiction between quickening the aquisition speed of multichannel data and the operation time of software, therefore, increased the acquisition rate to the highes, hardware limit of 13 us/point and made use of available memory capacity as large as possible which is 48k bite/8 channels. Controlled by TP-801 microcomputer, this MDP has the functions such as 8 channels data acquisition, real time superposition, 2~4 channels information output and some regular data processing functions.

Key words: A/D converter, memory, data acquisition