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74F190PCNSCN/a1000avaiUp/Down Decade Counter with Preset and Ripple Clock


74F190PC ,Up/Down Decade Counter with Preset and Ripple Clock54F/74F190Up/DownDecadeCounterwithPresetandRippleClockNovember199454F/74F190Up/DownDecadeCounterwit ..
74F191 ,Up/Down Binary Counter with Preset and Ripple ClockFunctional DescriptionThe 74F191 is a synchronous up/down 4-bit binary allow the negative-going edg ..
74F191PC ,Up/Down Binary Counter with Preset and Ripple ClockFunctional DescriptionThe 74F191 is a synchronous up/down 4-bit binary allow the negative-going edg ..
74F191SC ,Up/Down Binary Counter with Preset and Ripple Clock74F191 Up/Down Binary Counter with Preset and Ripple ClockApril 1988Revised September 200074F191Up/ ..
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74F190PC
Up/Down Decade Counter with Preset and Ripple Clock
TL/F/9494
54F/74F190
Up/Down
Decade
Counter
with
Preset
and
Ripple
Clock
November 1994
54F/74F190
Up/Down Decade Counter with Preset and Ripple Clock
General Description
The ’F190isa reversible BCD (8421) decade counterfea-
turing synchronous counting and asynchronous presetting.
The preset feature allowsthe ’F190tobe usedin program-
mable dividers.The Count Enable input,the Terminal Count
outputandthe Ripple Clock output make possiblea variety methodsof implementing multistage counters.Inthe
counting modes, state changesare initiatedbythe rising
edgeofthe clock.
Features High-speedÐ125 MHz typical count frequency Synchronous counting Asynchronous parallel load Cascadable
Commercial Military Package Package DescriptionNumber
74F190PC N16E 16-Lead (0.300× Wide) Molded Dual-In-Line
54F190DM (Note2) J16A 16-Lead CeramicDual-In-Line
74F190SC (Note1) M16A 16-Lead (0.150× Wide) Molded Small Outline, JEDEC
54F190FM(Note2) W16A 16-Lead Cerpack
54F190LM (Note2) E20A 20-Lead CeramicLeadless Chip Carrier,TypeC
Note 1:Devicesalso availablein13×reel. Usesuffixe SCX.
Note 2:Militarygrade devicewith environmentaland burn-in processing.Use suffixe DMQB, FMQBandLMQB.
Logic Symbols Connection Diagrams
TL/F/9494–1
IEEE/IEC
TL/F/9494–4
Pin Assignmentfor
DIP,SOICand Flatpak
TL/F/9494–2
Pin Assignment
for LCC
TL/F/9494–3
TRI-STATEÉ isaregistered trademarkof National SemiconductorCorporation.
C1995National SemiconductorCorporation RRD-B30M75/PrintedinU.S.A.
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