74ALVC14 datasheet(8/16 Pages) PHILIPS

8 / 16 page

9397 750 14592

Product data sheet

Rev. 03 — 15 February 2005

8 of 16

Philips Semiconductors

74ALVC14

Hex inverting Schmitt trigger

13. Transfer characteristics

Test data is given in Table 9.

Deﬁnitions test circuit:

RT = Termination resistance should be equal to output impedance Zo of the pulse generator.

CL = Load capacitance including jig and probe capacitance.

RL = Load resistor.

VEXT = Test voltage for switching times.

Fig 7.

Load circuitry for switching times

Table 10:

Test data

Supply

Input

Load

VEXT

VCC

tr, tf

tPLH, tPHL

1.65 V to 1.95 V

VCC

≤ 2.0 ns

30 pF

1 k

Ω

open

2.3 V to 2.7 V

VCC

≤ 2.0 ns

30 pF

500

Ω

open

2.7 V

≤ 2.5 ns

50 pF

500

Ω

open

3.0 V to 3.6 V

2.7 V

≤ 2.5 ns

50 pF

500

Ω

open

VEXT

VCC

mna616

D.U.T.

PULSE

GENERATOR

Table 11:

Transfer characteristics

The VIH and VIL from the family static characteristics are superseded by the VT+ and VT−.

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

Symbol Parameter

Conditions

Min

Typ

Max

Unit

Tamb = −40 °C to +85 °C [1]

VT+

positive-going threshold

VCC = 1.65 V

0.7

0.98

1.24

VCC = 1.95 V

0.75

1.12

1.46

VCC = 2.3 V

0.9

1.27

1.7

VCC = 2.7 V

1.0

1.43

2.0

VCC = 3.0 V

[2] 1.1

1.56

2.0

VCC = 3.6 V

1.1

1.81

2.0

VT−

negative-going threshold

VCC = 1.65 V

0.41

0.64

0.9

VCC = 1.95 V

0.49

0.76

1.1

VCC = 2.3 V

0.6

0.90

1.3

VCC = 2.7 V

0.7

1.06

1.4

VCC = 3.0 V

[2] 0.8

1.19

1.5

VCC = 3.6 V

0.8

1.42

1.7

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