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74AHCT123ABQ Fiches technique(PDF) 6 Page - NXP Semiconductors |
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74AHCT123ABQ Fiches technique(HTML) 6 Page - NXP Semiconductors |
6 / 21 page 74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 18 January 2008 6 of 21 NXP Semiconductors 74AHC123A; 74AHCT123A 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] Ptot derates linearly with 8 mW/K above 70 °C. [3] Ptot derates linearly with 5.5 mW/K above 60 °C. [4] Ptot derates linearly with 4.5 mW/K above 60 °C. 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 ↑ LH 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 +7.0 V VI input voltage −0.5 +7.0 V IIK input clamping current VI < −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 VO = −0.5 V to (VCC + 0.5 V) - ±25 mA ICC supply current - 75 mA IGND ground current −75 - mA Tstg storage temperature −65 +150 °C Ptot total power dissipation Tamb = −40 °C to +125 °C SO16 package [2] - 500 mW TSSOP16 package [3] - 500 mW DHVQFN16 package [4] - 500 mW |
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