1.
General description
The 74LVC3G14 is a high-performance, low-power, low-voltage, Si-gate CMOS device
and superior to most advanced CMOS compatible TTL-families.
Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of this
device as translator in a mixed 3.3 V and 5 V environment.
This device is fully specified for partial power-down applications using I
off
. The I
off
circuitry
disables the output, preventing the damaging backflow current through the device when it
is powered down.
The 74LVC3G14 provides three inverting buffers with Schmitt-trigger action. It is capable
of transforming slowly changing input signals into sharply defined, jitter-free output
signals.
2.
Features
s
Wide supply voltage range from 1.65 V to 5.5 V
s
5 V tolerant input/output for interfacing with 5 V logic
s
High noise immunity
s
ESD protection:
x
HBM EIA/JESD22-A114-B exceeds 2000 V
x
MM EIA/JESD22-A115-A exceeds 200 V.
s
24 mA output drive (V
CC
= 3.0 V)
s
CMOS low power consumption
s
Latch-up performance exceeds 250 mA
s
Direct interface with TTL levels
s
Multiple package options
s
Specified from
-
40
C to +85
C and
-
40
C to +125
C.
3.
Applications
s
Wave and pulse shaper for highly noisy environment
s
Astable multivibrator
s
Monostable multivibrator.
74LVC3G14
Triple inverting Schmitt trigger with 5 V tolerant input
Rev. 03 -- 31 January 2005
Product data sheet
9397 750 14543
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 -- 31 January 2005
2 of 17
Philips Semiconductors
74LVC3G14
Triple inverting Schmitt trigger with 5 V tolerant input
4.
Quick reference data
[1]
C
PD
is used to determine the dynamic power dissipation (P
D
in
W).
P
D
= C
PD
V
CC
2
f
i
N +
(C
L
V
CC
2
f
o
) where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
C
L
= output load capacitance in pF;
V
CC
= supply voltage in V;
N = number of inputs switching;
(C
L
V
CC
2
f
o
) = sum of outputs.
[2]
The condition is V
I
= GND to V
CC
.
5.
Ordering information
6.
Marking
Table 1:
Quick reference data
GND = 0 V; T
amb
= 25
C.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
t
PHL
, t
PLH
propagation delay input
nA to output nY
V
CC
= 1.8 V;
C
L
= 30 pF; R
L
= 1 k
-
4.2
-
ns
V
CC
= 2.5 V;
C
L
= 30 pF; R
L
= 500
-
3.0
-
ns
V
CC
= 2.7 V;
C
L
= 50 pF; R
L
= 500
-
3.8
-
ns
V
CC
= 3.3 V;
C
L
= 50 pF; R
L
= 500
-
3.2
-
ns
V
CC
= 5.0 V;
C
L
= 50 pF; R
L
= 500
-
2.4
-
ns
C
I
input capacitance
-
3.5
-
pF
C
PD
power dissipation
capacitance per buffer
V
CC
= 3.3 V
[1] [2]
-
18.1
-
pF
Table 2:
Ordering information
Type number
Package
Temperature range
Name
Description
Version
74LVC3G14DP
-
40
C to +125
C
TSSOP8
plastic thin shrink small outline package; 8 leads;
body width 3 mm; lead length 0.5 mm
SOT505-2
74LVC3G14DC
-
40
C to +125
C
VSSOP8
plastic very thin shrink small outline package; 8 leads;
body width 2.3 mm
SOT765-1
74LVC3G14GT
-
40
C to +125
C
XSON8
plastic extremely thin small outline package; no leads;
8 terminals; body 1
1.95
0.5 mm
SOT833-1
Table 3:
Marking codes
Type number
Marking code
74LVC3G14DP
V14
74LVC3G14DC
V14
74LVC3G14GT
V14
9397 750 14543
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 -- 31 January 2005
3 of 17
Philips Semiconductors
74LVC3G14
Triple inverting Schmitt trigger with 5 V tolerant input
7.
Functional diagram
8.
Pinning information
8.1 Pinning
Fig 1.
Logic symbol
Fig 2.
IEC logic symbol
Fig 3.
Logic diagram (one Schmitt trigger)
mna740
1A
1Y
1
7
3Y
3A
2
6
2A
2Y
3
5
7
1
2
6
mna741
5
3
mna025
A
Y
Fig 4.
Pin configuration TSSOP8 and
VSSOP8
Fig 5.
Pin configuration XSON8
3G14
1A
V
CC
3Y
1Y
2A
3A
GND
2Y
mna739
1
2
3
4
6
5
8
7
3G14
3A
1Y
V
CC
2Y
2A
3Y
1A
GND
001aab834
3
6
2
7
1
8
4
5
Transparent top view
9397 750 14543
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 -- 31 January 2005
4 of 17
Philips Semiconductors
74LVC3G14
Triple inverting Schmitt trigger with 5 V tolerant input
8.2 Pin description
9.
Functional description
9.1 Function table
[1]
H = HIGH voltage level;
L = LOW voltage level.
10. Limiting values
[1]
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2]
When V
CC
= 0 V (Power-down mode), the output voltage can be 5.5 V in normal condition.
Table 4:
Pin description
Symbol
Pin
Description
1A
1
data input
3Y
2
data output
2A
3
data input
GND
4
ground (0 V)
2Y
5
data output
3A
6
data input
1Y
7
data output
V
CC
8
supply voltage
Table 5:
Function table
[1]
Input nA
Output nY
L
H
H
L
Table 6:
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to
GND (ground = 0 V).
Symbol
Parameter
Conditions
Min
Max
Unit
V
CC
supply voltage
-
0.5
+6.5
V
I
IK
input diode current
V
I
< 0 V
-
-
50
mA
V
I
input voltage
[1]
-
0.5
+6.5
V
I
OK
output diode current
V
O
> V
CC
or V
O
< 0 V
-
50
mA
V
O
output voltage
enable mode
[1] [2]
-
0.5
V
CC
+ 0.5
V
Power-down mode
[1] [2]
-
0.5
+6.5
V
I
O
output source or sink
current
V
O
= 0 V to V
CC
-
50
mA
I
CC
, I
GND
V
CC
or GND current
-
100
mA
T
stg
storage temperature
-
65
+150
C
P
tot
power dissipation
T
amb
=
-
40
C to +125
C
-
300
mW
9397 750 14543
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 -- 31 January 2005
5 of 17
Philips Semiconductors
74LVC3G14
Triple inverting Schmitt trigger with 5 V tolerant input
11. Recommended operating conditions
12. Static characteristics
Table 7:
Recommended operating conditions
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V
CC
supply voltage
1.65
-
5.5
V
V
I
input voltage
0
-
5.5
V
V
O
output voltage
0
-
V
CC
V
T
amb
ambient temperature
-
40
-
+125
C
Table 8:
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
Min
Typ
Max
Unit
T
amb
=
-
40
C to +85
C
[1]
V
OL
LOW-level output
voltage
V
I
= V
IH
or V
IL
I
O
= 100
A; V
CC
= 1.65 V to 5.5 V
-
-
0.1
V
I
O
= 4 mA; V
CC
= 1.65 V
-
-
0.45
V
I
O
= 8 mA; V
CC
= 2.3 V
-
-
0.3
V
I
O
= 12 mA; V
CC
= 2.7 V
-
-
0.4
V
I
O
= 24 mA; V
CC
= 3.0 V
-
-
0.55
V
I
O
= 32 mA; V
CC
= 4.5 V
-
-
0.55
V
V
OH
HIGH-level output
voltage
V
I
= V
IH
or V
IL
I
O
=
-
100
A; V
CC
= 1.65 V to 5.5 V
V
CC
-
0.1 -
-
V
I
O
=
-
4 mA; V
CC
= 1.65 V
1.2
-
-
V
I
O
=
-
8 mA; V
CC
= 2.3 V
1.9
-
-
V
I
O
=
-
12 mA; V
CC
= 2.7 V
2.2
-
-
V
I
O
=
-
24 mA; V
CC
= 3.0 V
2.3
-
-
V
I
O
=
-
32 mA; V
CC
= 4.5 V
3.8
-
-
V
I
LI
input leakage current
V
I
= 5.5 V or GND; V
CC
= 5.5 V
-
0.1
5
A
I
off
power-off leakage
current
V
I
or V
O
= 5.5 V; V
CC
= 0 V
-
0.1
10
A
I
CC
quiescent supply current V
I
= V
CC
or GND; I
O
= 0 A; V
CC
= 5.5 V
-
0.1
10
A
I
CC
additional quiescent
supply per pin
V
I
= V
CC
-
0.6 V; I
O
= 0 A;
V
CC
= 2.3 V to 5.5 V
-
5
500
A
C
I
input capacitance
-
3.5
-
pF
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