74AUP1G14 Datasheet, PDF (14/20 Pages) NXP Semiconductors – Low-power Schmitt-trigger inverter

Philips Semiconductors
74AUP1G14
Low-power Schmitt-trigger inverter
4
I_CC
(mA)
3
001aad026
2
1
0
0
1
2
3
V_I (V)
Fig 11. Typical transfer characteristics; V_CC = 3.0 V
17. Application information
The slow input rise and fall times cause additional power dissipation, this can be
calculated using the following formula:
P_ad = f_i × (t_r × I_CC(AV) + t_f × I_CC(AV)) × V_CC where:
P_ad = additional power dissipation (µW);
f_i = input frequency (MHz);
t_r = input rise time (ns); 10 % to 90 %;
t_f = input fall time (ns); 90 % to 10 %;
I_CC(AV) = average additional supply current (µA).
Average I_CC differs with positive or negative input transitions, as shown in Figure 12.
An example of a relaxation circuit using the 74AUP1G14 is shown in Figure 13.
9397 750 14676
Product data sheet
Rev. 01 — 20 July 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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