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74LVCH8T245BQ 数据表(PDF) 11 Page - NXP Semiconductors |
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74LVCH8T245BQ 数据表(HTML) 11 Page - NXP Semiconductors |
11 / 28 page 74LVC_LVCH8T245 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Product data sheet Rev. 3 — 12 December 2011 11 of 28 NXP Semiconductors 74LVC8T245; 74LVCH8T245 8-bit dual supply translating transceiver; 3-state [1] tpd is the same as tPLH and tPHL; tdis is the same as tPLZ and tPHZ; ten is the same as tPZL and tPZH. Table 11. Dynamic characteristics for temperature range 40 C to +85 C[1] Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7; for wave forms see Figure 5 and Figure 6. Symbol Parameter Conditions VCC(B) Unit 1.5 V 0.1 V 1.8 V 0.15 V 2.5 V 0.2 V 3.3 V 0.3 V 5.0 V 0.5 V Min Max Min Max Min Max Min Max Min Max VCC(A) = 1.5 V 0.1 V tpd propagation delay An to Bn 1.7 27 1.7 23 1.3 18 1.0 15 0.8 13 ns Bn to An 0.9 27 0.9 25 0.8 23 0.7 23 0.7 22 ns tdis disable time OE to An 1.5 30 1.5 30 1.5 30 1.5 30 1.4 30 ns OE to Bn 2.4 34 2.4 33 1.9 15 1.7 14 1.3 12 ns ten enable time OE to An 0.4 34 0.4 34 0.4 34 0.4 34 0.4 34 ns OE to Bn 1.8 36 1.8 34 1.5 18 1.2 15 0.9 13 ns VCC(A) = 1.8 V 0.15 V tpd propagation delay An to Bn 1.7 25 1.7 21.9 1.3 9.2 1.0 7.4 0.8 7.1 ns Bn to An 0.9 23 0.9 23.8 0.8 23.6 0.7 23.4 0.7 23.4 ns tdis disable time OE to An 1.5 30 1.5 29.6 1.5 29.4 1.5 29.3 1.4 29.2 ns OE to Bn 2.4 33 2.4 32.2 1.9 13.1 1.7 12.0 1.3 10.3 ns ten enable time OE to An 0.4 24 0.4 24.0 0.4 23.8 0.4 23.7 0.4 23.7 ns OE to Bn 1.8 34 1.8 32.0 1.5 16.0 1.2 12.6 0.9 10.8 ns VCC(A) = 2.5 V 0.2 V tpd propagation delay An to Bn 1.5 23 1.5 21.4 1.2 9.0 0.8 6.2 0.6 4.8 ns Bn to An 1.2 18 1.2 9.3 1.0 9.1 1.0 8.9 0.9 8.8 ns tdis disable time OE to An 1.4 9.0 1.4 9.0 1.4 9.0 1.4 9.0 1.4 9.0 ns OE to Bn 2.3 31 2.3 29.6 1.8 11.0 1.7 9.3 0.9 6.9 ns ten enable time OE to An 1.0 10.9 1.0 10.9 1.0 10.9 1.0 10.9 1.0 10.9 ns OE to Bn 1.7 32 1.7 28.2 1.5 12.9 1.2 9.4 1.0 6.9 ns VCC(A) = 3.3 V 0.3 V tpd propagation delay An to Bn 1.5 23 1.5 21.2 1.1 8.8 0.8 6.3 0.5 4.4 ns Bn to An 0.8 15 0.8 7.2 0.8 6.2 0.7 6.1 0.6 6.0 ns tdis disable time OE to An 1.6 8.2 1.6 8.2 1.6 8.2 1.6 8.2 1.6 8.2 ns OE to Bn 2.1 30 2.1 29.0 1.7 10.3 1.5 8.6 0.8 6.3 ns ten enable time OE to An 0.8 8.1 0.8 8.1 0.8 8.1 0.8 8.1 0.8 8.1 ns OE to Bn 1.8 31 1.8 27.7 1.4 12.4 1.1 8.5 0.9 6.4 ns VCC(A) = 5.0 V 0.5 V tpd propagation delay An to Bn 1.5 22 1.5 21.4 1.0 8.8 0.7 6.0 0.4 4.2 ns Bn to An 0.7 13 0.7 7.0 0.4 4.8 0.3 4.5 0.3 4.3 ns tdis disable time OE to An 0.3 5.4 0.3 5.4 0.3 5.4 0.3 5.4 0.3 5.4 ns OE to Bn 2.0 30 2.0 28.7 1.6 9.7 1.4 8.0 0.7 5.7 ns ten enable time OE to An 0.7 6.4 0.7 6.4 0.7 6.4 0.7 6.4 0.7 6.4 ns OE to Bn 1.5 31 1.5 27.6 1.3 11.4 1.0 8.1 0.9 6.0 ns |
类似零件编号 - 74LVCH8T245BQ |
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类似说明 - 74LVCH8T245BQ |
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