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M74HC166B1R Folha de dados(PDF) 2 Page - STMicroelectronics |
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M74HC166B1R Folha de dados(HTML) 2 Page - STMicroelectronics |
2 / 13 page PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1 SI Serial Data Inputs 2, 3, 4, 5, 10, 11, 12, 14 A to H Parallel Data Inputs 6 CK INH Clock Enable Input (Active LOW) 7 CK Clock Input (LOW to HIGH edge-triggered) 9 CLEAR Asyncronous Master reset Input (Active LOW) 13 QH Serial Output from the Last Stage 15 S/L Parallel Enable Input (Active LOW) 8 GND Ground (0V) 16 VCC Positive Supply Voltage IEC LOGIC SYMBOL INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE INPUTS INTERNAL OUTPUTS OUTPUTS CLEAR SHIFT/LOAD CLOCK INH CLOCK SERIAL IN PARALLEL A...............H QA QB QH L XXXX X L L L L X X X X NO CHANGE HL L X a................ha b h H H L H X H QAn QGn H H L L X L QAn QGn H X H X X X NO CHANGE X: Don’t Care a...........h : The level of steady state input voltage at inputs a trough H respectively M54/M74HC166 2/13 |
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Descrição semelhante - M74HC166B1R |
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