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74HC259BQ-Q100 Folha de dados(PDF) 10 Page - NXP Semiconductors |
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74HC259BQ-Q100 Folha de dados(HTML) 10 Page - NXP Semiconductors |
10 / 20 page 74HC_HCT259_Q100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved. Product data sheet Rev. 1 — 30 July 2012 10 of 20 NXP Semiconductors 74HC259-Q100; 74HCT259-Q100 8-bit addressable latch [1] Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC =5.0 V). [2] tpd is the same as tPLH and tPHL. [3] tt is the same as tTHL and tTLH. [4] CPD is used to determine the dynamic power dissipation (PD in W). PD =CPD VCC2 fi N+ (CL VCC2 fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; (C L VCC 2 f o) = sum of the outputs. 11. Waveforms tsu set-up time D, An to LE; see Figure 10 and Figure 11 VCC = 4.5 V 17 10 - 21 - 26 - ns th hold time D to LE; see Figure 10 and Figure 11 VCC = 4.5 V 0 8- 0 - 0 - ns An to LE; see Figure 10 and Figure 11 VCC = 4.5 V 0 4- 0 - 0 - ns CPD power dissipation capacitance fi = 1 MHz; VI =GND to VCC 1.5 V [4] -19 - - - - - pF Table 8. Dynamic characteristics …continued Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 12. Symbol Parameter Conditions 25 C 40 C to +85 C 40 C to +125 C Unit Min Typ[1] Max Min Max Min Max Measurement points are given in Table 9. VOL and VOH are typical voltage output levels that occur with the output load. Fig 6. Data input to output propagation delays 001aah123 D input Qn output tPHL tPLH GND VCC VM VM VOH VOL |
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Descrição semelhante - 74HC259BQ-Q100 |
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