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74ABT646A Scheda tecnica(PDF) 9 Page - NXP Semiconductors |
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74ABT646A Scheda tecnica(HTML) 9 Page - NXP Semiconductors |
9 / 19 page 74ABT646A_3 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 03 — 15 March 2010 9 of 19 NXP Semiconductors 74ABT646A Octal bus transceiver/register; 3-state 10. Dynamic characteristics [1] This data sheet limit may vary among suppliers. Table 7. Dynamic characteristics GND = 0 V; for test circuit, see Figure 11. Symbol Parameter Conditions 25 °C; V CC = 5.0 V −40 °C to +85 °C; VCC = 5.0 V ± 0.5 V Unit Min Typ Max Min Max fmax maximum frequency see Figure 6 125 350 - 125 - MHz tPLH LOW to HIGH propagation delay CPAB to Bn or CPBA to An; see Figure 6 2.2 3.9 5.1 2.2 5.6 ns An to Bn or Bn to An; see Figure 7 1.5 3.2 4.3 1.5 4.8 ns SAB to Bn or SBA to An; see Figure 7 1.5 3.8 5.1 1.5 6.5 ns tPHL HIGH to LOW propagation delay CPAB to Bn or CPBA to An; see Figure 6 1.7 4.4 5.2[1] 1.7 5.6 ns An to Bn or Bn to An; see Figure 7 1.5 3.7 4.6 1.5 5.4 ns SAB to Bn or SBA to An; see Figure 7 1.5 4.4 5.3[1] 1.5 5.9 ns tPZH OFF-state to HIGH propagation delay OE to An or Bn; see Figure 8 1.5 3.5 5.3 1.5 6.3 ns DIR to An or Bn; see Figure 8 1.5 3.9 5.7 1.2 6.7 ns tPZL OFF-state to LOW propagation delay OE to An or Bn; see Figure 9 3.0 4.5 7.4 3.0 8.8 ns DIR to An or Bn; see Figure 9 2.5 4.7 9.0 2.5 9.5 ns tPHZ HIGH to OFF-state propagation delay OE to An or Bn; see Figure 8 1.5 4.0 4.8[1] 1.5 5.3[1] ns DIR to An or Bn; see Figure 8 1.5 4.0 5.0 1.5 5.7 ns tPLZ LOW to OFF-state propagation delay OE to An or Bn; see Figure 9 1.5 3.3 4.0 1.5 4.5 ns DIR to An or Bn; see Figure 9 1.5 3.5 4.7 1.5 6.0 ns tsu(H) set-up time HIGH An to CPAB, Bn to CPBA; see Figure 10 3.0 0.7 - 3.0 - ns tsu(L) set-up time LOW An to CPAB, Bn to CPBA; see Figure 10 3.0 0.7 - 3.0 - ns th(H) hold time HIGH An to CPAB, Bn to CPBA; see Figure 10 +0.0 −0.5 - 0.0 - ns th(L) hold time LOW An to CPAB, Bn to CPBA; see Figure 10 +0.0 −0.5 - 0.0 - ns tWH pulse width HIGH CPAB, CPBA; see Figure 6 4.0 0.9 - 4.0 - ns tWL pulse width LOW LE; see Figure 6 4.0 1.4 - 4.0 - ns |
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