74LVC1G07GF datasheet(6/14 Pages) NXP

6 / 14 page

74LVC1G07_8

Product data sheet

Rev. 08 — 17 July 2007

6 of 14

NXP Semiconductors

74LVC1G07

Buffer with open-drain output

11. Dynamic characteristics

[1]

Typical values are measured at Tamb =25 °C and VCC = 1.8 V, 2.5 V, 2.7 V, 3.3 V and 5.0 V respectively.

[2]

tpd is the same as tPLZ and tPZL.

[3]

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

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 V;

N = number of inputs switching;

∑(C

L × VCC

× f

o) = sum of outputs.

12. Waveforms

Table 8.

Dynamic characteristics

Voltages are referenced to GND (ground = 0 V); for load circuit see Figure 8.

Symbol Parameter

Conditions

−40 °C to +85 °C

−40 °C to +125 °C Unit

Min

Typ[1]

Max

Min

Max

tpd

propagation delay

A to Y; see Figure 7

[2]

VCC = 1.65 V to 1.95 V

1.0

2.6

6.7

1.0

8.4

VCC = 2.3 V to 2.7 V

0.5

1.7

5.5

0.5

7.0

VCC = 2.7 V

0.5

2.3

4.7

0.5

6.0

VCC = 3.0 V to 3.6 V

0.5

2.2

4.2

0.5

5.5

VCC = 4.5 V to 5.5 V

0.5

1.6

3.5

0.5

4.5

CPD

power dissipation

capacitance

VI = GND to VCC; VCC = 3.3 V

[3]

7.0

Measurement points are given in Table 9.

VOL is the typical output voltage level that occurs with the output load.

Fig 7.

The input (A) to output (Y) propagation delays

mna626

tPLZ

Y output

A input

VCC

VOL

GND

tPZL

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