74ALVC541 datasheet(7/15 Pages) NXP

номер детали	74ALVC541

подробное описание детали	Octal buffer/line driver; 3-state

PDF	15 Pages

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производитель	NXP [NXP Semiconductors]

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74ALVC541_2

Product data sheet

Rev. 02 — 5 November 2007

7 of 15

NXP Semiconductors

74ALVC541

Octal buffer/line driver; 3-state

[1]

All typical values are measured at Tamb = 25 °C and VCC = 1.8 V, 2.5 V, 2.7 V and 3.3 V.

[2]

tpd is the same as tPLH and tPHL.

ten is the same as tPZL and tPZH.

tdis is the same as tPLZ and tPHZ.

[3]

CPD is used to determine the dynamic power dissipation (PD in µW).

PD =CPD × VCC2 × fi × N+ Σ(CL × VCC2 × fo) where:

fi = input frequency in MHz;

fo = output frequency in MHz;

CL = output load capacitance in pF;

VCC = supply voltage in V;

N = number of inputs switching;

Σ(C

L × VCC

× f

o) = sum of the outputs.

11. Waveforms

CPD

power

dissipation

capacitance

per buffer; VI = GND to VCC; VCC = 3.3 V

[3]

outputs enabled

outputs disabled

Table 7.

Dynamic characteristics …continued

Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7.

Symbol

Parameter

Conditions

−40 °C to +85 °C

Unit

Min

Typ[1]

Max

Measurement points are given in Table 8.

VOL and VOH are typical voltage output levels that occur with the output load.

Fig 5.

Propagation delay input (An) to output (Yn)

mna901

An input

Yn output

tPHL

tPLH

GND

VOH

VOL

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