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74LVC_LVCH2T45 데이터시트(PDF) 5 Page - NXP Semiconductors |
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5 / 36 page 74LVC_LVCH2T45 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved. Product data sheet Rev. 8 — 29 March 2013 5 of 36 NXP Semiconductors 74LVC2T45; 74LVCH2T45 Dual supply translating transceiver; 3-state 8. Limiting values [1] The minimum input voltage ratings and output voltage ratings may be exceeded if the input and output current ratings are observed. [2] VCCO is the supply voltage associated with the output port. [3] VCCO + 0.5 V should not exceed 6.5 V. [4] For VSSOP8 packages: above 110 C the value of P tot derates linearly with 8.0 mW/K. For XSON8 and XQFN8 packages: above 118 C the value of P tot derates linearly with 7.8 mW/K. 9. Recommended operating conditions [1] VCCO is the supply voltage associated with the output port. [2] VCCI is the supply voltage associated with the input port. Table 5. 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(A) supply voltage A 0.5 +6.5 V VCC(B) supply voltage B 0.5 +6.5 V IIK input clamping current VI <0V 50 - mA VI input voltage [1] 0.5 +6.5 V IOK output clamping current VO <0V 50 - mA VO output voltage Active mode [1][2][3] 0.5 VCCO +0.5 V Suspend or 3-state mode [1] 0.5 +6.5 V IO output current VO =0Vto VCCO [2] - 50 mA ICC supply current ICC(A) or ICC(B) -100 mA IGND ground current 100 - mA Tstg storage temperature 65 +150 C Ptot total power dissipation Tamb = 40 C to +125 C [4] -250 mW Table 6. Recommended operating conditions Symbol Parameter Conditions Min Max Unit VCC(A) supply voltage A 1.2 5.5 V VCC(B) supply voltage B 1.2 5.5 V VI input voltage 0 5.5 V VO output voltage Active mode [1] 0VCCO V Suspend or 3-state mode 0 5.5 V Tamb ambient temperature 40 +125 C t/V input transition rise and fall rate VCCI = 1.2 V [2] - 20 ns/V VCCI = 1.4 V to 1.95 V - 20 ns/V VCCI = 2.3 V to 2.7 V - 20 ns/V VCCI = 3 V to 3.6 V - 10 ns/V VCCI = 4.5 V to 5.5 V - 5 ns/V |
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