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74LVCH245ABQ-Q100 датащи(PDF) 7 Page - NXP Semiconductors |
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74LVCH245ABQ-Q100 датащи(HTML) 7 Page - NXP Semiconductors |
7 / 16 page 74LVC_LVCH245A_Q100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved. Product data sheet Rev. 1 — 3 September 2012 7 of 16 NXP Semiconductors 74LVC_LVCH245A_Q100 Octal bus transceiver; 3-state 10. Dynamic characteristics [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 Tamb =25 C and VCC = 1.2 V, 1.8 V, 2.5 V, 2.7 V and 3.3 V respectively. [3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design. [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 Volts N = number of inputs switching (C L VCC 2 f o) = sum of the outputs. Table 7. Dynamic characteristics Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 7. Symbol Parameter Conditions 40 C to +85 C 40 C to +125 C Unit Min Typ[2] Max Min Max tpd propagation delay nAn to nBn; nBn to nAn; see Figure 5 [1] VCC = 1.2 V - 17.0 - - - ns VCC = 1.65 V to 1.95 V 1.5 6.5 14.6 1.5 16.9 ns VCC = 2.3 V to 2.7 V 1.0 3.4 7.6 1.0 8.7 ns VCC = 2.7 V 1.5 3.4 7.3 1.5 9.5 ns VCC = 3.0 V to 3.6 V 1.5 2.9 6.3 1.5 8.0 ns ten enable time nOE to nAn, nBn; see Figure 6 [1] VCC = 1.2 V - 22.0 - - - ns VCC = 1.65 V to 1.95 V 1.9 8.3 19.5 1.9 22.5 ns VCC = 2.3 V to 2.7 V 1.5 4.6 10.7 1.5 12.4 ns VCC = 2.7 V 1.5 4.8 9.5 1.5 12.0 ns VCC = 3.0 V to 3.6 V 1.5 3.7 8.5 1.5 11.0 ns tdis disable time nOE to nAn, nBn; see Figure 6 [1] VCC = 1.2 V - 12.0 - - - ns VCC = 1.65 V to 1.95 V 2.9 5.5 12.3 2.9 14.2 ns VCC = 2.3 V to 2.7 V 1.0 3.1 7.1 1.0 8.2 ns VCC = 2.7 V 1.5 3.9 8.0 1.5 10.0 ns VCC = 3.0 V to 3.6 V 1.7 3.6 7.0 1.7 9.0 ns tsk(o) output skew time [3] - - 1.0 - 1.5 ns CPD power dissipation capacitance per input; VI =GND to VCC [4] VCC = 1.65 V to 1.95 V - 7.7 - - - pF VCC = 2.3 V to 2.7 V - 11.3 - - - pF VCC = 3.0 V to 3.6 V - 14.4 - - - pF |
Аналогичный номер детали - 74LVCH245ABQ-Q100 |
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Аналогичное описание - 74LVCH245ABQ-Q100 |
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