The Signetics 25000 Series 9C46XN Random Access Write- Only-Memory employs both enhancement and depletion mode P-Channel, N-Channel and Neu¹ channel MOS devices. Although a static device, a single TTL level clock phase is required to drive the on-board multi-port clock generator. Data refresh is accomplished during CB and LH periods. Quadri- state outputs (when applicable) allow expansion in many directions, depending on organization. http://www4.vmi.edu/faculty/squirejc//Research/IC_Datasheets/digital_cmos/Wr...