74LVC2G66DC datasheet(11/22 Pages) PHILIPS

11 / 22 page

9397 750 13259

Product data sheet

Rev. 01 — 29 June 2004

11 of 22

Philips Semiconductors

74LVC2G66

Bilateral switch

[1]

All typical values are measured at Tamb =25 °C and nominal VCC.

[2]

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

PD =CPD × VCC2 × fi × N + {(CL +CS) × 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 = total load switching outputs;

CS = switch capacitance.

[3]

The condition is VI = GND to VCC.

13. Waveforms

tPHZ, tPLZ

turn-off time nE to VOS

see Figure 15

VCC = 1.65 V to 1.95 V

1.0

11.5

VCC = 2.3 V to 2.7 V

1.0

7.0

VCC = 2.7 V

1.0

8.5

VCC = 3.0 V to 3.6 V

1.0

8.0

VCC = 4.5 V to 5.5 V

1.0

6.5

Table 10:

Dynamic characteristics …continued

At recommended operating conditions; voltages are referenced to GND (ground = 0 V); test circuit Figure 16.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Measurement points are given in Table 11.

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

Fig 14. The input (nY, nZ) to output (nZ, nY) propagation delays and the output transition

times.

Table 11:

Measurement points

Supply voltage

Input

Output

VCC

1.65 V to 1.95 V

0.5

× VCC

0.5

× VCC

2.3 V to 2.7 V

0.5

× V

0.5

× V

2.7 V

1.5 V

3.0 V to 3.6 V

1.5 V

4.5 V to 5.5 V

0.5

× VCC

0.5

× V

001aaa541

tPLH

tPHL

nY or nZ

input

nZ or nY

output

GND

VOH

VOL

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