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74AHC2G241DC 데이터시트(PDF) 7 Page - NXP Semiconductors |
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74AHC2G241DC 데이터시트(HTML) 7 Page - NXP Semiconductors |
7 / 16 page 74AHC_AHCT2G241_2 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 02 — 13 January 2009 7 of 16 NXP Semiconductors 74AHC2G241; 74AHCT2G241 Dual buffer/line driver; 3-state [1] tpd is the same as tPLH and tPHL. ten is the same as tPZL and tPZH. tdis is the same as tPLZ and tPHZ. [2] Typical values are measured at VCC = 3.3 V. [3] Typical values are measured at VCC = 5.0 V. [4] CPD is used to determine the dynamic power dissipation PD (µW). PD =CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in Volts. ten enable time 1OE to 1Y; see Figure 6 [1] VCC = 4.5 V to 5.5 V [3] CL = 15 pF - 3.9 5.1 1.0 6.0 1.0 6.5 ns CL = 50 pF - 5.1 7.5 1.0 8.5 1.0 9.5 ns 2OE to 2Y; see Figure 7 [1] VCC = 4.5 V to 5.5 V [3] CL = 15 pF - 3.4 5.6 1.0 6.3 1.0 6.5 ns CL = 50 pF - 4.8 7.5 1.0 9.0 1.0 9.5 ns tdis disable time 1OE to 1Y; see Figure 6 [1] VCC = 4.5 V to 5.5 V [3] CL = 15 pF - 4.5 6.8 1.0 8.0 1.0 8.5 ns CL = 50 pF - 6.1 8.8 1.0 10.0 1.0 11.0 ns 2OE to 2Y; see Figure 7 [1] VCC = 4.5 V to 5.5 V [3] CL = 15 pF - 4.0 6.8 1.0 8.0 1.0 8.5 ns CL = 50 pF - 5.7 8.8 1.0 10.0 1.0 11.0 ns CPD power dissipation capacitance per buffer; CL = 50 pF; fi = 1 MHz; VI = GND to VCC [4] -10- - - - - pF Table 8. Dynamic characteristics …continued GND = 0 V; for test circuit see Figure 8. Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ Max Min Max Min Max |
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