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74HC14PW Datasheet(PDF) 6 Page - NXP Semiconductors

Part No. 74HC14PW
Description  Hex inverting Schmitt trigger
Download  21 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

74HC14PW Datasheet(HTML) 6 Page - NXP Semiconductors

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74HC_HCT14
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 6 — 19 September 2012
6 of 21
NXP Semiconductors
74HC14; 74HCT14
Hex inverting Schmitt trigger
11. Dynamic characteristics
[1]
tpd is the same as tPHL and tPLH.
[2]
tt is the same as tTHL and tTLH.
[3]
CPD is used to determine the dynamic power dissipation (PD in W):
PD =CPD  VCC2  fi  N+  (CL  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 = number of inputs switching;
 (C
L  VCC
2
 f
o) = sum of outputs.
Table 7.
Dynamic characteristics
GND = 0 V; CL =50 pF; for test circuit see Figure 7.
Symbol Parameter
Conditions
Tamb = 25 C
Tamb = 40 C to
+125
C
Unit
Min
Typ
Max
Max
(85
C)
Max
(125
C)
74HC14
tpd
propagation delay
nA to nY; see Figure 6
[1]
VCC = 2.0 V
-
41
125
155
190
ns
VCC = 4.5 V
-
15
25
31
38
ns
VCC = 5.0 V; CL =15pF
-
12
-
-
-
ns
VCC = 6.0 V
-
12
21
26
32
ns
tt
transition time
see Figure 6
[2]
VCC = 2.0 V
-
19
75
95
110
ns
VCC = 4.5 V
-
7
15
19
22
ns
VCC = 6.0 V
-
6
13
15
19
ns
CPD
power dissipation
capacitance
per package; VI =GND to VCC
[3]
-7-
-
-
pF
74HCT14
tpd
propagation delay
nA to nY; see Figure 6
[1]
VCC = 4.5 V
-
20
34
43
51
ns
VCC = 5.0 V; CL =15pF
-
17
-
-
-
ns
tt
transition time
VCC = 4.5 V; see Figure 6
[2]
-
7
15
19
22
ns
CPD
power dissipation
capacitance
per package;
VI =GND to VCC  1.5 V
[3]
-8-
-
-
pF


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