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74HCT423BQ 数据表(PDF) 5 Page - NXP Semiconductors |
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74HCT423BQ 数据表(HTML) 5 Page - NXP Semiconductors |
5 / 23 page 74HC_HCT423_3 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 03 — 24 July 2008 5 of 23 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 |
类似零件编号 - 74HCT423BQ |
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类似说明 - 74HCT423BQ |
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