It's prescaler (f-divider). It has been used in TV Loewe: DL11/60435, chassis 90/20, IC26 ST, /61465/66, 61455, IC22/IC 26, 61440/61450, chassis 110/22-26, RC19/60422, RC111/60423, CTV4211/60424, MCL11 STEREO/61480, MCS11 ST, /61481/82, IC22 ST/61445, SC56 ST/61446, LFDNR 648.
I have not more informations about it, sorry.