ater ▁C M OS ▁versions ▁were ▁designated ▁ 1 8 0 6 VM 4 U ▁and ▁N 1 8 3 6 VM 4 ) ▁ ▁DE C ▁P DP - 1 1 ▁F PU ▁instructions ▁L D UB , ▁L D SC , ▁S TA 0 , ▁ST B 0 ▁and ▁ST Q 0 ▁have ▁not ▁been ▁implemented . ▁ ▁Package : ▁ 6 4 - pin ▁pl astic ▁plan ar ▁( K A 1 8 0 1 VM 4 ) ▁or ▁ 6 4 - pin ▁C Q FP ▁( K N 1 8 0 1 VM 4 ) ▁ ▁Further ▁development ▁▁ 1 8 0 6 ▁series ▁ ▁All ▁devices ▁in ▁the ▁ 1 8 0 6 ▁series ▁are ▁manufact ured ▁in ▁C M OS ▁technology ▁and ▁require ▁a ▁+ 5 ▁V ▁power ▁supply . ▁▁ 1 8 0 6 VM 2 : ▁function ally ▁equivalent ▁to ▁the ▁n M OS ▁K 1 8 0 1 VM 2 ; ▁clock ▁speed ▁ 5   M Hz ; ▁ 4 2 - pin ▁cer am ic ▁plan ar ▁package ; ▁ 1 3 4 6 3 6 ▁trans ist ors ▁ ▁N 1 8 0 6 VM 2 : ▁function ally ▁equivalent ▁to ▁the ▁n M OS ▁K 1 8 0 1 VM 2 ; ▁clock ▁speed ▁ 5   M Hz ; ▁ 6 4 - pin ▁C Q FP ; ▁ 1 3 4 6 3 6 ▁trans ist ors ; ▁manufact ured ▁by ▁F iz ika ▁Moscow ▁as ▁a