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74HC4051 데이터시트(PDF) 5 Page - NXP Semiconductors |
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5 / 31 page 74HC_HCT4051 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Product data sheet Rev. 6 — 13 December 2011 5 of 31 NXP Semiconductors 74HC4051; 74HCT4051 8-channel analog multiplexer/demultiplexer 7. Functional description 7.1 Function table [1] H = HIGH voltage level; L = LOW voltage level; X = don’t care. 8. Limiting values [1] To avoid drawing VCC current out of terminal Z, when switch current flows into terminals Yn, the voltage drop across the bidirectional switch must not exceed 0.4 V. If the switch current flows into terminal Z, no VCC current will flow out of terminals Yn, and in this case there is no limit for the voltage drop across the switch, but the voltages at Yn and Z may not exceed VCC or VEE. [2] For DIP16 packages: above 70 C the value of P tot derates linearly with 12 mW/K. [3] For SO16 packages: above 70 C the value of P tot derates linearly with 8 mW/K. For SSOP16 and TSSOP16 packages: above 60 C the value of P tot derates linearly with 5.5 mW/K. For DHVQFN16 packages: above 60 C the value of P tot derates linearly with 4.5 mW/K. Table 3. Function table[1] Input Channel ON E S2 S1 S0 LLLLY0 to Z LLLH Y1 to Z L L H L Y2toZ L L H H Y3toZ LH LLY4 to Z LH LH Y5 to Z L HHL Y6 to Z L HHHY7 to Z H XXXswitches off Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to VSS = 0 V (ground). Symbol Parameter Conditions Min Max Unit VCC supply voltage [1] 0.5 +11.0 V IIK input clamping current VI < 0.5 V or VI >VCC +0.5 V - 20 mA ISK switch clamping current VSW < 0.5 V or VSW >VCC +0.5 V - 20 mA ISW switch current 0.5 V < V SW <VCC +0.5 V - 25 mA IEE supply current - 20 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, (T)SSOP16, and DHVQFN16 package [3] - 500 mW P power dissipation per switch - 100 mW |
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