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74AHCT245PW Datenblatt(PDF) 7 Page - NXP Semiconductors |
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74AHCT245PW Datenblatt(HTML) 7 Page - NXP Semiconductors |
7 / 16 page 74AHC_AHCT245_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 25 September 2007 7 of 16 NXP Semiconductors 74AHC245; 74AHCT245 Octal bus transceiver; 3-state 10. Dynamic characteristics Table 7. Dynamic characteristics GND = 0 V. For test circuit see Figure 7. Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ[1] Max Min Max Min Max For type 74AHC245 tpd propagation delay nAn to nYn; see Figure 5 [2] VCC = 3.0 V to 3.6 V CL = 15 pF - 5.0 8.4 1.0 10.0 1.0 10.5 ns CL = 50 pF - 6.5 11.9 1.0 13.5 1.0 15.0 ns VCC = 4.5 V to 5.5 V CL = 15 pF - 3.5 5.5 1.0 6.5 1.0 7.0 ns CL = 50 pF 5.0 7.5 1.0 8.5 1.0 9.5 ns ten enable time nOE to nYn; see Figure 6 [2] VCC = 3.0 V to 3.6 V CL = 15 pF - 6.5 13.2 1.0 15.5 1.0 16.5 ns CL = 50 pF - 9.0 16.7 1.0 19.0 1.0 21.0 ns VCC = 4.5 V to 5.5 V CL = 15 pF - 4.0 8.5 1.0 10.0 1.0 11.0 ns CL = 50 pF - 5.0 10.6 1.0 12.0 1.0 13.5 ns tdis disable time nOE to nYn; see Figure 6 [2] VCC = 3.0 V to 3.6 V CL = 15 pF - 7.5 12.5 1.0 15.5 1.0 16.0 ns CL = 50 pF - 10.0 15.8 1.0 18.0 1.0 20.0 ns VCC = 4.5 V to 5.5 V CL = 15 pF - 4.5 7.8 1.0 9.2 1.0 10.0 ns CL = 50 pF - 6.0 9.7 1.0 11.0 1.0 12.5 ns CPD power dissipation capacitance CL = 50 pF; fi = 1 MHz; VI = GND to VCC [3] -12 - - - - - pF |
Ähnliche Teilenummer - 74AHCT245PW |
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Ähnliche Beschreibung - 74AHCT245PW |
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