74LV14
Hex inverting Schmitt trigger
Rev. 7 — 9 December 2015
Product data sheet
1. General description
The 74LV14 is a low-voltage Si-gate CMOS device that is pin and function compatible with
74HC14 and 74HCT14.
The 74LV14 provides six inverting buffers with Schmitt-trigger input. It is capable of
transforming slowly-changing input signals into sharply defined, jitter-free output signals.
The inputs switch at different points for positive and negative-going signals. The difference
between the positive voltage VT+ and the negative voltage VT is defined as the input
hysteresis voltage VH.
2. Features and benefits
Wide operating voltage: 1.0 V to 5.5 V
Optimized for low voltage applications: 1.0 V to 3.6 V
Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
Typical output ground bounce < 0.8 V at VCC = 3.3 V and Tamb = 25 C
Typical HIGH-level output voltage (VOH) undershoot: > 2 V at VCC = 3.3 V and
Tamb = 25 C
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from 40 C to +85 C and from 40 C to +125 C
3. Applications
Wave and pulse shapers for highly noisy environments
Astable multivibrators
Monostable multivibrators
74LV14
Nexperia
Hex inverting Schmitt trigger
4. Ordering information
Table 1.
Ordering information
Type number
Package
Temperature range
Name
Description
Version
74LV14D
40 C to +125 C
SO14
plastic small outline package; 14 leads;
body width 3.9 mm
SOT108-1
74LV14DB
40 C to +125 C
SSOP14
plastic shrink small outline package; 14 leads;
body width 5.3 mm
SOT337-1
74LV14PW
40 C to +125 C
TSSOP14
plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
SOT402-1
74LV14BQ
40 C to +125 C
DHVQFN14 plastic dual in-line compatible thermal enhanced very
thin quad flat package; no leads; 14 terminals;
body 2.5 3 0.85 mm
SOT762-1
5. Functional diagram
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Logic symbol
74LV14
Product data sheet
PQD
Fig 1.
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DDF
Fig 2.
IEC logic symbol
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 9 December 2015
Fig 3.
Logic diagram for one
Schmitt trigger
©
Nexperia B.V. 2017. All rights reserved
2 of 18
74LV14
Nexperia
Hex inverting Schmitt trigger
6. Pinning information
6.1 Pinning
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LQGH[DUHD
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7UDQVSDUHQWWRSYLHZ
DDK
(1) This is not a supply pin. The substrate is attached to this
pad using conductive die attach material. There is no
electrical or mechanical requirement to solder this pad.
However, if it is soldered, the solder land should remain
floating or be connected to VCC.
Fig 4.
Pin configuration SO14 and (T)SSOP14
Fig 5.
Pin configuration DHVQFN14
6.2 Pin description
Table 2.
Pin description
Symbol
Pin
Description
1A
1
data input
1Y
2
data output
2A
3
data input
2Y
4
data output
3A
5
data input
3Y
6
data output
GND
7
ground (0 V)
4Y
8
data output
4A
9
data input
5Y
10
data output
5A
11
data input
6Y
12
data output
6A
13
data input
VCC
14
supply voltage
74LV14
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 9 December 2015
©
Nexperia B.V. 2017. All rights reserved
3 of 18
74LV14
Nexperia
Hex inverting Schmitt trigger
7. Functional description
Table 3.
Function table
H = HIGH voltage level; L = LOW voltage level.
Input nA
Output nY
L
H
H
L
8. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
VCC
supply voltage
Conditions
Min
Max
Unit
0.5
+7.0
V
-
20
mA
-
50
mA
-
25
mA
input clamping current
VI < 0.5 V or VI > VCC + 0.5 V
[1]
IOK
output clamping current
VO < 0.5 V or VO > VCC + 0.5 V
[1]
IO
output current
VO = 0.5 V to (VCC + 0.5 V)
ICC
supply current
-
50
mA
IGND
ground current
50
-
mA
Tstg
storage temperature
65
+150
C
Ptot
total power dissipation
IIK
Tamb = 40 C to +125 C
SO14 package
[2]
-
500
mW
(T)SSOP14 package
[3]
-
500
mW
DHVQFN14 package
[4]
-
500
mW
[1]
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2]
Ptot derates linearly with 8 mW/K above 70 C.
[3]
Ptot derates linearly with 5.5 mW/K above 60 C.
[4]
Ptot derates linearly with 4.5 mW/K above 60 C.
9. Recommended operating conditions
Table 5.
Recommended operating conditions
Voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
Conditions
[1]
Min
Typ
Max
Unit
VCC
supply voltage
1.0
3.3
5.5
V
VI
input voltage
0
-
VCC
V
VO
output voltage
0
-
VCC
V
Tamb
ambient temperature
40
+25
+125
C
[1]
The static characteristics are guaranteed from VCC = 1.2 V to VCC = 5.5 V, but LV devices are guaranteed to function down to
VCC = 1.0 V (with input levels GND or VCC).
74LV14
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 9 December 2015
©
Nexperia B.V. 2017. All rights reserved
4 of 18
74LV14
Nexperia
Hex inverting Schmitt trigger
10. Static characteristics
Table 6.
Static characteristics
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
VOH
HIGH-level output voltage
LOW-level output voltage
VOL
Conditions
Tamb = 40 C to +85 C
Tamb = 40 C
to +125 C
Unit
Min
Typ[1]
Max
Min
Max
IO = 100 A; VCC = 1.2 V
-
1.2
-
-
-
V
IO = 100 A; VCC = 2.0 V
1.8
2.0
-
1.8
-
V
IO = 100 A; VCC = 2.7 V
2.5
2.7
-
2.5
-
V
IO = 100 A; VCC = 3.0 V
2.8
3.0
-
2.8
-
V
IO = 100 A; VCC = 4.5 V
4.3
4.5
-
4.3
-
V
IO = 6 mA; VCC = 3.0 V
2.4
2.82
-
2.2
-
V
IO = 12 mA; VCC = 4.5 V
3.6
4.2
-
3.5
-
V
IO = 100 A; VCC = 1.2 V
-
0
-
-
-
V
IO = 100 A; VCC = 2.0 V
-
0
0.2
-
0.2
V
IO = 100 A; VCC = 2.7 V
-
0
0.2
-
0.2
V
IO = 100 A; VCC = 3.0 V
-
0
0.2
-
0.2
V
IO = 100 A; VCC = 4.5 V
-
0
0.2
-
0.2
V
IO = 6 mA; VCC = 3.0 V
-
0.25
0.40
-
0.50
V
IO = 12 mA; VCC = 4.5 V
VI = VT+ or VT
VI = VT+ or VT
-
0.35
0.55
-
0.65
V
II
input leakage current
VI = VCC or GND;
VCC = 5.5 V
-
-
1.0
-
1.0
A
ICC
supply current
VI = VCC or GND; IO = 0 A;
VCC = 5.5 V
-
-
20.0
-
40
A
ICC
additional supply current
per input; VI = VCC 0.6 V;
VCC = 2.7 V to 3.6 V
-
-
500
-
850
A
CI
input capacitance
-
3.5
-
-
-
pF
[1]
Typical values are measured at Tamb = 25 C.
74LV14
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 9 December 2015
©
Nexperia B.V. 2017. All rights reserved
5 of 18
74LV14
Nexperia
Hex inverting Schmitt trigger
11. Dynamic characteristics
Table 7.
Dynamic characteristics
GND = 0 V; For test circuit see Figure 7.
Symbol Parameter
propagation delay
tpd
Tamb = 40 C
to +85 C
Conditions
Typ[1]
Max
Min
Max
VCC = 1.2 V
-
80
-
-
-
ns
VCC = 2.0 V
-
27
37
-
48
ns
[2]
nA to nY; see Figure 6
-
20
28
-
35
ns
VCC = 3.0 V to 3.6 V; CL = 15 pF
[3]
-
13
-
-
-
ns
VCC = 3.0 V to 3.6 V
[3]
-
15
22
-
28
ns
-
-
18
-
23
ns
-
15
-
-
-
pF
VCC = 4.5 V to 5.5 V
power dissipation
capacitance
Unit
Min
VCC = 2.7 V
CPD
Tamb = 40 C
to +125 C
[4]
CL = 50 pF; fi = 1 MHz;
VI = GND to VCC
[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
(CL VCC2 fo) = sum of the outputs.
12. Waveforms
9,
90
Q$LQSXW
90
*1'
W 3+/
W 3/+
92+
90
Q
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