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74LVTH2245DB Datasheet(PDF) 7 Page - NXP Semiconductors |
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74LVTH2245DB Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 15 page 74LVT_LVTH2245_4 © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Product data sheet Rev. 04 — 24 April 2006 7 of 15 Philips Semiconductors 74LVT2245; 74LVTH2245 3.3 V octal transceiver with 30 Ω termination resistors; 3-state [1] Typical values are at VCC = 3.3 V and Tamb = 25 °C. [2] Unused pins at VCC or GND. [3] This is the bus hold overdrive current required to force the input to the opposite logic state. [4] This parameter is valid for any VCC between 0 V and 1.2 V with a transition time of up to 10 ms. From VCC =1.2 VtoVCC = 3.0 V to 3.6 V a transition time of 100 µs is permitted. [5] ICC is measured with outputs pulled to VCC or GND. [6] This is the increase in supply current for each input at the specified voltage level other than VCC or GND. 11. Dynamic characteristics [1] Typical values are at VCC = 3.3 V and Tamb = 25 °C. ∆I CC additional quiescent supply current per input pin; VCC =3 Vto3.6 V; one input at VCC − 0.6 V; other inputs at VCC or GND [6] - 0.1 0.2 mA Ci input capacitance pins DIR and OE VI = 0 V or 3.0 V - 4 - pF Cio input/output capacitance pins An and Bn outputs disabled; VI/O = 0 V or 3.0 V -10 - pF Table 7. Static characteristics …continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions Min Typ Max Unit Table 8. Dynamic characteristics Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7. Symbol Parameter Conditions Min Typ Max Unit Tamb = −40 °C to +85 °C [1] tPLH LOW-to-HIGH propagation delay An to Bn or Bn to An see Figure 5 VCC = 3.0 V to 3.6 V 1.0 3.2 4.6 ns VCC = 2.7 V - - 5.3 ns tPHL HIGH-to-LOW propagation delay An to Bn or Bn to An see Figure 5 VCC = 3.0 V to 3.6 V 1.0 3.1 4.5 ns VCC = 2.7 V - - 4.9 ns tPZH output enable time to HIGH-state see Figure 6 VCC = 3.0 V to 3.6 V 1.1 4.5 7.0 ns VCC = 2.7 V - - 9.1 ns tPZL output enable time to LOW-state see Figure 6 VCC = 3.0 V to 3.6 V 1.5 4.3 6.5 ns VCC = 2.7 V - - 7.6 ns tPHZ output disable time from HIGH-state see Figure 6 VCC = 3.0 V to 3.6 V 2.2 3.7 5.2 ns VCC = 2.7 V - - 5.6 ns tPLZ output disable time from LOW-state see Figure 6 VCC = 3.0 V to 3.6 V 2.0 3.6 5.0 ns VCC = 2.7 V - - 5.0 ns |
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