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74F199 数据表(PDF) 2 Page - NXP Semiconductors |
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74F199 数据表(HTML) 2 Page - NXP Semiconductors |
2 / 8 page Philips Semiconductors FAST Products Product specification 74F199 8-bit parallel-access shift register June 15, 1988 2 LOGIC SYMBOL Q0 Q1 Q2 Q3 4 6 8 10 VCC = Pin 24 GND = Pin 12 23 2 1 13 11 14 PE J K CP CE MR D1 D2 7 9 SF00153 D3 D0 3 5 Q5 Q6 Q7 15 17 19 21 D5 D6 20 22 D7 D4 16 18 Q4 IEEE/IEC SYMBOL SF00154 1 9 16 18 20 22 1 3 5 7 2 14 23 13 11 1 & C2/ → SRG8 C3 R 2J 2K 2, 3D 2, 3D 10 15 17 19 21 4 6 8 FUNCTION TABLE INPUTS OUTPUTS OPERATING MODES MR CP CE PE J K Dn Q0 Q1 … Q6 Q7 OPERATING MODES L X X X X X X L L … L L Reset (clear H ↑ l h h h X H q0 … q5 q6 Shift, set First stage H ↑ l h l l X L q0 … q5 q6 Shift, reset First stage H ↑ l h h l X q0 q0 … q5 q6 Shift, toggle First stage H ↑ l h l h X q0 q0 … q5 q6 Shift, retain First stage H ↑ l l X X dn d0 d1 … d6 d7 Parallel load H ↑ h X X X X q0 q1 … q6 q7 Hold (do nothing) H = High voltage level h = High voltage level one setup time prior to the Low-to-High clock transition L = Low voltage level l = Low voltage level one setup time prior t the Low-to-High clock transition X = Don’t care ↑ = Low-to-High clock transition dn(qn) = Lower case letters indicate the state of the referenced input (or output) one setup time prior to the Low-to-High clock transition |
类似零件编号 - 74F199 |
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类似说明 - 74F199 |
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