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74HC423N 데이터시트(PDF) 5 Page - NXP Semiconductors |
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74HC423N 데이터시트(HTML) 5 Page - NXP Semiconductors |
5 / 24 page 74HC_HCT423 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Product data sheet Rev. 6 — 19 December 2011 5 of 24 NXP Semiconductors 74HC423; 74HCT423 Dual retriggerable monostable multivibrator with reset 6. Functional description [1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; = LOW-to-HIGH transition; = HIGH-to-LOW transition; = one HIGH level output pulse; = one LOW level output pulse. [2] If the monostable multivibrator was triggered before this condition was established, the pulse will continue as programmed. 7. Limiting values [1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed. [2] For DIP16 packages: above 70 C the value of P tot derates linearly at 12 mW/K. [3] For SO16 packages: above 70 C the value of P tot derates linearly at 8 mW/K; For SSOP16 and TSSOP16 packages: above 60 C the value of P tot derates linearly at 5.5 mW/K; For DHVQFN16 packages: above 60 C the value of P tot derates linearly at 4.5 mW/K. Table 3. Function table[1] Input Output nRD nA nB nQ nQ L XXL H XH XL[2] H[2] XXL L[2] H[2] HL H H Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions Min Max Unit VCC supply voltage 0.5 +7 V IIK input clamping current VI < 0.5 V or VI >VCC +0.5 V [1] - 20 mA IOK output clamping current VO < 0.5 V or VO >VCC +0.5 V [1] - 20 mA IO output current 0.5 V < V O < VCC +0.5 V - 25 mA ICC supply current - 50 mA IGND ground current 50 - mA Tstg storage temperature 65 +150 C Ptot total power dissipation DIP16 package [2] - 750 mW SO16, SSOP16, TSSOP16 and DHVQFN16 packages [3] - 500 mW |
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