. ▁It ▁uses ▁an ▁ 1 8 0 6 VM 2 ▁core ▁with ▁support ▁logic ▁implemented ▁in ▁U L As ▁placed ▁on ▁the ▁same ▁die . ▁In cludes ▁keyboard ▁controller , ▁U ART , ▁parallel ▁interface , ▁MM U , ▁watch dog ▁timer ▁and ▁PM U . ▁Memory ▁is ▁external . ▁The ▁development ▁version ▁was ▁called ▁T 3 6 VM 1 - 2 . ▁▁ 1 8 3 6 ▁series ▁ ▁All ▁devices ▁in ▁the ▁ 1 8 3 6 ▁series ▁are ▁manufact ured ▁in ▁C M OS ▁technology ▁and ▁require ▁a ▁+ 5 ▁V ▁power ▁supply . ▁They ▁are ▁manufact ured ▁by ▁F iz ika ▁Moscow ▁as ▁a ▁second ▁source . ▁ ▁N 1 8 3 6 VM 3 : ▁function ally ▁equivalent ▁to ▁the ▁n M OS ▁K 1 8 0 1 VM 3 ; ▁clock ▁speed ▁ 2 5   M Hz ; ▁ 6 4 - pin ▁C Q FP ▁ ▁N 1 8 3 6 VM 4 : ▁function ally ▁equivalent ▁to ▁the ▁n M OS ▁K 1 8 0 1 VM 4 ; ▁clock ▁speed ▁ 1 6   M Hz ; ▁ 6 4 - pin ▁C Q FP ▁ ▁Use ▁These ▁CPU s ▁were ▁used ▁in : ▁ ▁So y uz - Ne on ▁PC - 1 1 / 1 6 ▁PC , ▁roughly ▁similar ▁to ▁AT ▁in ▁performance ▁( N 1 8 0 6 VM 2 ) ▁ ▁D V K ▁series ▁professional ▁mic ros ▁( vari ous ) ▁ ▁UK NC ▁educational ▁computers