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74221 Fiches technique(PDF) 11 Page - NXP Semiconductors |
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74221 Fiches technique(HTML) 11 Page - NXP Semiconductors |
11 / 15 page December 1990 11 Philips Semiconductors Product specification Dual non-retriggerable monostable multivibrator with reset 74HC/HCT221 AC WAVEFORMS Fig.7 Output pulse control; nRD = HIGH. Fig.8 Output pulse control using reset input nRD; nA = LOW. Fig.9 Waveforms showing the removal times; nRD to nA or nB. (1) HC : VM =VM = 50%; VI = GND to VCC. HCT : VM =VM = 1.3 V; VI = GND to 3 V. Fig.10 Waveforms showing the triggering of One Shot by input nA or input nB for one period (tW) and minimum pulse widths of the trigger inputs nA and nB. (1) HC : VM =VM = 50%; VI = GND to VCC. HCT : VM =VM = 1.3 V; VI = GND to 3 V. Fig.11 Waveforms showing the reset to nQ and nQ output propagation delays. (1) HC : VM =VM = 50%; VI = GND to VCC. HCT : VM =VM = 1.3 V; VI = GND to 3 V. |
Numéro de pièce similaire - 74221 |
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Description similaire - 74221 |
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