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74HCT594D 数据表(PDF) 4 Page - NXP Semiconductors |
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74HCT594D 数据表(HTML) 4 Page - NXP Semiconductors |
4 / 10 page December 1991 4 Philips Semiconductors Product specification 8-bit shift register with output register 74HC/HCT594 FUNCTION TABLE Note 1. H = HIGH voltage level L = LOW voltage level ↑ = LOW-to-HIGH transition NC = no change X = don’t care. INPUTS OUTPUTS FUNCTION SHCP STCP SHR STR DS Q7’Qn X X L X X L NC a LOW level on SHR only affects the shift registers. XXXL XNC L a LOW level on STR only affects the storage registers. X ↑ L H X L L empty shift register loaded into storage register. ↑ XH XH Q6’ NC logic HIGH level shifted into shift register stage 0. Contents of all shift register stages shifted through, e.g. previous state of stage 6 (internal Q6’) appears on the serial output (Q7’). X ↑ HHX NC Qn’ contents of shift register stages (internal Qn’) are transferred to the storage register and parallel output stages. ↑↑ HHX Q6nQn’ contents of shift register shifted through. Previous contents of shift register transferred to the storage register and the parallel output stages. Fig.4 Functional diagram. handbook, halfpage MBC320 SHCP STCP Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 SH R ST R D S 14 10 13 11 12 15 9 123 4 5 6 7 8-STAGE SHIFT REGISTER 8-BIT STORAGE REGISTER Q7' |
类似零件编号 - 74HCT594D |
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类似说明 - 74HCT594D |
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