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74LV14 数据表(PDF) 6 Page - NXP Semiconductors

部件名 74LV14
功能描述  Hex inverting Schmitt trigger
Download  19 Pages
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

74LV14 数据表(HTML) 6 Page - NXP Semiconductors

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74LV14
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 6 — 12 December 2011
6 of 19
NXP Semiconductors
74LV14
Hex inverting Schmitt trigger
11. Dynamic characteristics
[1]
All typical values are measured at Tamb =25 C.
[2]
tpd is the same as tPLH and tPHL.
[3]
Typical values are measured at nominal supply voltage (VCC = 3.3 V).
[4]
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 the outputs.
12. Waveforms
Table 7.
Dynamic characteristics
GND = 0 V; For test circuit see Figure 7.
Symbol Parameter
Conditions
Tamb = 40 C
to +85
C
Tamb = 40 C
to +125
C
Unit
Min
Typ[1]
Max
Min
Max
tpd
propagation delay
nA to nY; see Figure 6
[2]
VCC = 1.2 V
-
80
-
-
-
ns
VCC = 2.0 V
-
27
37
-
48
ns
VCC = 2.7 V
-
20
28
-
35
ns
VCC = 3.0 V to 3.6 V; CL =15pF
[3]
-13
-
-
-
ns
VCC = 3.0 V to 3.6 V
[3]
-
15
22
-
28
ns
VCC = 4.5 V to 5.5 V
-
-
18
-
23
ns
CPD
power dissipation
capacitance
CL =50pF; fi = 1 MHz;
VI =GND to VCC
[4]
-15
-
-
-
pF
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 6.
The input (nA) to output (nY) propagation delays
mna344
tPHL
tPLH
VM
VM
VM
VM
nA input
nY output
GND
VI
VOH
VOL


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