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74LVCH32244A Datasheet(PDF) 6 Page - NXP Semiconductors |
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74LVCH32244A Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 14 page 74LVCH32244A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Product data sheet Rev. 3 — 16 December 2011 6 of 14 NXP Semiconductors 74LVCH32244A 32-bit buffer/line driver; 5 V input/output tolerant; 3-state [1] All typical values are measured at VCC = 3.3 V and Tamb =25 C. [2] The bus hold circuit is switched off when VI >VCC allowing 5.5 V on the input pin. [3] Valid for data inputs only. Control inputs do not have a bus hold circuit. [4] The specified sustaining current at the data inputs holds the input below the specified VI level. [5] The specified overdrive current at the data input forces the data input to the opposite logic input state. 10. Dynamic characteristics IBHH bus hold HIGH current [3][4] VCC = 1.65; VI = 1.07 V 10 - - 10 - A VCC = 2.3; VI = 1.7 V 30 - - 25 - A VCC = 3.0; VI = 2.0 V 75 - - 60 - A IBHLO bus hold LOW overdrive current [3][5] VCC = 1.95 V 200 - - 200 - A VCC = 2.7 V 300 - - 300 - A VCC = 3.6 V 500 - - 500 - A IBHHO bus hold HIGH overdrive current [3][5] VCC = 1.95 V 200 - - 200 - A VCC = 2.7 V 300 - - 300 - A VCC = 3.6 V 500 - - 500 - A Table 6. Static characteristics …continued At recommended operating conditions. Voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions 40 C to +85 C 40 C to +125 C Unit Min Typ[1] Max Min Max Table 7. Dynamic characteristics Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 6. Symbol Parameter Conditions Tamb = 40 C to +85 C 40 C to +125 C Unit Min Typ[1] Max Min Max tpd propagation delay nAntonYn; see Figure 4 [2] VCC = 1.2 V - 11.0 - - - ns VCC = 1.65 V to 1.95 V 1.5 4.8 10.7 1.5 11.3 ns VCC = 2.3 V to 2.7 V 1.0 2.6 5.3 1.0 5.9 ns VCC = 2.7 V 1.0 2.6 4.7 1.0 6.0 ns VCC = 3.0 V to 3.6 V 1.1 2.2 4.1 1.1 5.5 ns ten enable time nOE to nYn; see Figure 5 [2] VCC = 1.2 V - 15.0 - - - ns VCC = 1.65 V to 1.95 V 1.5 6.2 12.1 1.5 12.7 ns VCC = 2.3 V to 2.7 V 1.0 3.5 6.4 1.0 7.1 ns VCC = 2.7 V 1.0 3.2 5.8 1.0 7.5 ns VCC = 3.0 V to 3.6 V 1.0 2.8 4.6 1.0 6.0 ns tdis disable time nOE to nYn; see Figure 5 [2] VCC = 1.2 V - 10.0 - - - ns VCC = 1.65 V to 1.95 V 2.5 4.4 8.7 2.5 9.4 ns VCC = 2.3 V to 2.7 V 1.0 2.4 4.9 1.0 5.3 ns VCC = 2.7 V 1.0 3.2 6.2 1.0 8.0 ns VCC = 3.0 V to 3.6 V 1.8 3.1 5.2 1.8 6.5 ns |
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