Industrial Automatic Control Systems and Controllers Annotation << Back Application of EN25Q128 Flash Memory in a Microcontroller Seismic Recording System Senin L.N., Senina T.E. The article discusses the option of modifying the microcontroller seismic recording system "Register", developed in the seismometry laboratory of the Institute of Geophysics, Ural Branch of the Russian Academy of Sciences. The modifi cation consists of a signifi cant expansion of fl ash memory capacity in order to increase the duration of continuous recording of seismic data in the mode of autonomous fi eld seismic research. The use of a new fl ash memory chip as part of the “Register” recorder practically comes down to changes and additions to the device software and only to a small extent concerns changes in the topology of the control and processing printed circuit board. Keywords: microcontroller; fl ash memory; multiplexer; seismic recording controller system; software DOI: 10.25791/asu.1.2024.1480 Pp. 16-22.