74HCT14D NXP Semiconductors, 74HCT14D Datasheet - Page 10

• Manufacturer Part Number: 74HCT14D
• Description: Inverters HEX INV SCHMITT TRIG
• Manufacturer: NXP Semiconductors

Specifications of 74HCT14D

• Number Of Circuits: 6
• Logic Family: 74HCT
• Logic Type: CMOS
• High Level Output Current: - 4 mA
• Low Level Output Current: 4 mA
• Propagation Delay Time: 17 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Package / Case: SOT-108
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 4.5 V to 5.5 V
• Lead Free Status / Rohs Status: Details
• Other names: 74HCT14D,652

NXP Semiconductors
15. Application information
74HC_HCT14
Product data sheet
Fig 11. Typical 74HCT transfer characteristics
(mA)
a. V
I
1.5
CC
1.2
0.9
0.6
0.3
0
0
CC
= 4.5 V
1
The slow input rise and fall times cause additional power dissipation, this can be
calculated using the following formula:
P
Average ΔI
and
An example of a relaxation circuit using the 74HC14; 74HCT14 is shown in
2
add
P
f
t
t
ΔI
i
r
f
add
= input frequency (MHz);
= fall time (ns); 90 % to 10 %;
= rise time (ns); 10 % to 90 %;
CC(AV)
Figure
= f
= additional power dissipation (μW);
i
3
× (t
= average additional supply current (μA).
CC(AV)
13.
r
× ΔI
All information provided in this document is subject to legal disclaimers.
4
CC(AV)
differs with positive or negative input transitions, as shown in
V
mna849
I
(V)
Rev. 4 — 17 January 2011
5
+ t
f
× ΔI
CC(AV)
) × V
(mA)
I
CC
b. V
1.8
1.5
1.2
0.9
0.6
0.3
CC
0
0
CC
where:
= 5.5 V
1
74HC14; 74HCT14
2
Hex inverting Schmitt trigger
3
4
© NXP B.V. 2011. All rights reserved.
5
mna850
V
Figure
I
(V)
Figure 12
6
14.
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