Почти каждое мое устройство содежит микросхемы серии К561.
561ПУ4 = CD4050
561CA1 = MC14531
561KT3 = CD4066
561TB1 = CD4027
561TM2 = CD4013
561TM3 = CD4042
561TP2 = CD4043
561АГ1 = CD4098B
561ВИ1 = MC14541
561ГГ1 = CD4046
561ИД1 = CD4028
561ИД4 = CD4055
561ИД5 = CD4056
561ИЕ10 = MC14520A
561ИЕ11 = MC14516A
561ИЕ14 = CD4029
561ИЕ15 = CD4059
561ИЕ16 = CD4020
561ИЕ19 = CD4018
561ИЕ22 = MC14553A
561ИЕ8 = CD4017
561ИЕ9 = CD4022
561ИК1 = CD4053A
561ИК2 = MC14516A
561ИМ1 = CD4008
561ИП2 = MC14585A
561ИП4 = MC14582
561ИП5 = MC14554
561ИП6 = CD40101
561ИПЗ = MC14581
561ИР1 = CD4006
561ИР11 = CD4036
561ИР12 = MC14580A
561ИР13 = MM54C905
561ИР16 = CD40105B
561ИР2 = CD4015
561ИР6 = CD4034
561ИР9 = CD4035
561КП1 = CD4052
561КП2 = CD4051
561КП6 = KT8592
561ЛА10 = CD40107
561ЛА7 = CD4011
561ЛА8 = CD4012
561ЛА9 = CD4023
561ЛЕ10 = CD4025
561ЛЕ5 = CD4001
561ЛЕ6 = CD4002
561ЛН1 = MC14502
561ЛН2 = CD4049
561ЛНЗ = UPD4503
561ЛП2 = CD4030
561ЛС2 = CD4019
561ПР1 = CD4094
561ПУ6 = CD40109A
561ПУ9 = CD40116A
561ПЦ1 = MK5009
561РП1 = CD4039
561ТЛ1 = CD4093
561УМ1 = CD4054