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CD74HC194 Datasheet(PDF) 2 Page - Texas Instruments |
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CD74HC194 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 8 page 2 Functional Diagram 14 12 13 15 Q0 Q1 Q2 Q3 7 6 3 4 5 D0 D1 D2 D3 GND = 8 VCC = 16 2 9 10 1 11 DSL DSR S0 S1 MR CP TRUTH TABLE OPERATING MODE INPUTS OUTPUT CP MR S1 S0 DSR DSL Dn Q0 Q1 Q2 Q3 Reset (Clear) X L X X X X X LLLL Hold (Do Nothing) X H l (Note 2) l (Note 2) X X X q0 q1 q2 q3 Shift Left ↑ H h l (Note 2) X l X q1 q2 q3 L ↑ H h l (Note 2) X h X q1 q2 q3 H Shift Right ↑ H l (Note 2) h l X X L q0 q1 q2 ↑ H l (Note 2) h h X X H q0 q1 q2 Parallel Load ↑ Hh h X X dn d0 d1 q2 d3 NOTES: 1. H = High Voltage Level, h = High Voltage Level One Set-up Time Prior To The Low to High Clock Transition, L = Low Voltage Level, l = Low Voltage Level One Set-up Time Prior to the Low to High Clock Transition, dn (qn) = Lower Case Letters Indicate the State of the Referenced Input (or output) One Set-up Time Prior to the Low To High Clock Transition, X = Don’t Care, ↑ = Transition from Low to High Level 2. The High to Low transition of the S0 and S1 Inputs on the CD74HC194, CD74HCT194 should only take place while CP is High for Conventional Operation. CD74HC194, CD74HCT194 |
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Similar Description - CD74HC194 |
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