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74AHC14 Datasheet(PDF) 5 Page - NXP Semiconductors

Part No. 74AHC14
Description  Hex inverting Schmitt trigger
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo 

 
 5 page
background image
1999 Sep 27
5
Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
74AHC14; 74AHCT14
DC CHARACTERISTICS
Type 74AHC14
Over recommended operating conditions; voltage are referenced to GND (ground = 0 V).
SYMBOL
PARAMETER
TEST CONDITIONS
Tamb (°C)
UNIT
OTHER
VCC (V)
25
−40 to +85 −40 to +125
MIN.
TYP.
MAX. MIN. MAX. MIN. MAX.
VT+
positive going
threshold
3.0
−−
2.2
2.2
2.2
V
4.5
−−
3.15
3.15
3.15
5.5
−−
3.85
3.85
3.85
VT−
negative going
threshold
3.0
0.9
−−
0.9
0.9
V
4.5
1.35
−−
1.35
1.35
5.5
1.65
−−
1.65
1.65
VH
hysteresis
(VT+ − VT−)
3.0
0.3
1.2
0.3
1.2
0.25
1.2
V
4.5
0.4
1.4
0.4
1.4
0.35
1.4
5.5
0.5
1.6
0.5
1.6
0.45
1.6
VOH
HIGH-level output
voltage; all outputs
VI =VIH or VIL;
IO = −50 µA
2.0
1.9
2.0
1.9
1.9
V
3.0
2.9
3.0
2.9
2.9
4.5
4.4
4.5
4.4
4.4
HIGH-level output
voltage
VI =VIH or VIL;
IO = −4.0 mA
3.0
2.58
−−
2.48
2.40
V
VI =VIH or VIL;
IO = −8.0 mA
4.5
3.94
−−
3.8
3.70
VOL
LOW-level output
voltage; all outputs
VI =VIH or VIL;
IO =50 µA
2.0
0
0.1
0.1
0.1
V
3.0
0
0.1
0.1
0.1
4.5
0
0.1
0.1
0.1
LOW-level output
voltage
VI =VIH or VIL;
IO =4mA
3.0
−−
0.36
0.44
0.55
V
VI =VIH or VIL;
IO =8mA
4.5
−−
0.36
0.44
0.55
II
input leakage
current
VI =VCC or GND
5.5
−−
0.1
1.0
2.0
µA
ICC
quiescent supply
current
VI =VCC or GND;
IO =0
5.5
−−
2.0
20
40
µA
CI
input capacitance
310
10
10
pF




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