74LVC126A
Rev. 9 — 21 August 2018
Quad buffer/line driver with 5 V tolerant input/outputs; 3-state
Product data sheet
1. General description
The 74LVC126A consists of four non-inverting buffers/line drivers with 3-state outputs, which
are controlled by the output enable input (nOE). A LOW at nOE causes the outputs to assume a
high-impedance OFF-state.
Inputs can be driven from either 3.3 V or 5 V devices. When disabled, up to 5.5 V can be applied to
the outputs.
2. Features and benefits
•
•
•
•
•
5 V tolerant inputs/outputs for interfacing with 5 V logic
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low power consumption
Direct interface with TTL levels
Complies with JEDEC standard:
•
JESD8-7A (1.65 V to 1.95 V)
•
JESD8-5A (2.3 V to 2.7 V)
•
JESD8-C/JESD36 (2.7 V to 3.6 V)
ESD protection:
•
HBM JESD22-A114F exceeds 2000 V
•
MM JESD22-A115B exceeds 200 V
•
CDM JESD22-C101E exceeds 1000 V
Specified from -40 °C to +85 °C and -40 °C to +125 °C
•
•
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range
74LVC126AD
74LVC126ADB
74LVC126APW
74LVC126ABQ
-40 °C to +125 °C
-40 °C to +125 °C
-40 °C to +125 °C
-40 °C to +125 °C
Name
SO14
SSOP14
TSSOP14
Description
plastic small outline package; 14 leads;
body width 3.9 mm
plastic shrink small outline package; 14 leads;
body width 5.3 mm
plastic thin small outline package; 14 leads;
body width 4.4 mm
Version
SOT108-1
SOT337-1
SOT402-1
SOT762-1
DHVQFN14 plastic dual in-line compatible thermal
enhanced very thin quad flat package; no leads;
14 terminals; body 2.5 × 3 × 0.85 mm
Nexperia
74LVC126A
Quad buffer/line driver with 5 V tolerant input/outputs; 3-state
4. Functional diagram
2
1
5
4
9
10
12
13
1A
1OE
2A
2OE
3A
3OE
4A
4OE
mna235
1Y
3
2
1
EN1
1
3
2Y
6
5
4
6
3Y
8
9
10
8
4Y
11
12
13
mna236
11
Fig. 1.
Logic symbol
nA
Fig. 2.
IEC logic symbol
nY
nOE
mna234
Fig. 3.
Logic diagram
5. Pinning information
5.1. Pinning
1OE
2
3
4
5
6
7
GND
3Y
8
1
terminal 1
index area
1A
14 V
CC
13 4OE
12 4A
11 4Y
10 3OE
9
3A
74LVC126A
1OE
1A
1Y
2OE
2A
2Y
GND
1
2
3
4
5
6
7
aaa-012622
1Y
14 V
CC
13 4OE
12 4A
11 4Y
10 3OE
9
8
3A
3Y
2OE
2A
2Y
126
GND
(1)
001aac983
Transparent top view
Fig. 4.
Pin configuration SOT108-1 (SO14), SOT337-1
(SSOP14) and SOT402-1 (TSSOP14)
(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 GND.
Fig. 5.
Pin configuration SOT762-1 (DHVQFN14)
74LVC126A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 9 — 21 August 2018
2 / 14
Nexperia
74LVC126A
Quad buffer/line driver with 5 V tolerant input/outputs; 3-state
5.2. Pin description
Table 2. Pin description
Symbol
1OE, 2OE, 3OE, 4OE
1A, 2A, 3A, 4A
1Y, 2Y, 3Y, 4Y
GND
V
CC
Pin
1, 4, 10, 13
2, 5, 9, 12
3, 6, 8, 11
7
14
Description
data enable input (active HIGH)
data input
data output
ground (0 V)
supply voltage
6. Functional description
Table 3. Function selection
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state
Inputs
nOE
H
H
L
nA
L
H
X
Output
nY
L
H
Z
7. Limiting values
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
I
GND
T
stg
P
tot
[1]
[2]
[3]
Conditions
V
I
< 0 V
[1]
V
O
> V
CC
or V
O
< 0 V
output HIGH or LOW-state
output 3-state
V
O
= 0 V to V
CC
[2]
[2]
Min
-0.5
-50
-0.5
-
-0.5
-0.5
-
-
-100
[3]
-65
-
Max
+6.5
-
+6.5
±50
V
CC
+ 0.5
+6.5
±50
100
-
+150
500
Unit
V
mA
V
mA
V
V
mA
mA
mA
°C
mW
supply voltage
input clamping current
input voltage
output clamping current
output voltage
output current
supply current
ground current
storage temperature
total power dissipation
T
amb
= -40 °C to +125 °C
The minimum input voltage ratings may be exceeded if the input current ratings are observed.
The output voltage ratings may be exceeded if the output current ratings are observed.
For SO14 packages: above 70 °C the value of P
tot
derates linearly with 8 mW/K.
For (T)SSOP14 packages: above 60 °C the value of P
tot
derates linearly with 5.5 mW/K.
For DHVQFN14 packages: above 60 °C the value of P
tot
derates linearly with 4.5 mW/K.
74LVC126A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 9 — 21 August 2018
3 / 14
Nexperia
74LVC126A
Quad buffer/line driver with 5 V tolerant input/outputs; 3-state
8. Recommended operating conditions
Table 5. Recommended operating conditions
Symbol Parameter
Conditions
V
CC
V
I
V
O
T
amb
Δt/ΔV
supply voltage
functional
input voltage
output voltage
ambient temperature
input transition rise and fall rate
output HIGH or LOW state
output 3-state
in free air
V
CC
= 1.65 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
Min
1.65
1.2
0
0
0
-40
0
0
Typ
-
-
-
-
-
-
-
-
Max
3.6
-
5.5
V
CC
5.5
+125
20
10
Unit
V
V
V
V
V
°C
ns/V
ns/V
9. Static characteristics
Table 6. Static characteristics
At recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
V
IH
HIGH-level input
voltage
Conditions
Min
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
V
IL
LOW-level input
voltage
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
V
OH
HIGH-level output V
I
= V
IH
or V
IL
voltage
I
O
= -100 μA;
V
CC
= 1.65 V to 3.6 V
I
O
= -4 mA; V
CC
= 1.65 V
I
O
= -8 mA; V
CC
= 2.3 V
I
O
= -12 mA; V
CC
= 2.7 V
I
O
= -18 mA; V
CC
= 3.0 V
I
O
= -24 mA; V
CC
= 3.0 V
V
OL
LOW-level output
voltage
V
I
= V
IH
or V
IL
I
O
= 100 μA;
V
CC
= 1.65 V to 3.6 V
I
O
= 4 mA; V
CC
= 1.65 V
I
O
= 8 mA; V
CC
= 2.3 V
I
O
= 12 mA; V
CC
= 2.7 V
I
O
= 24 mA; V
CC
= 3.0 V
-
-
-
-
-
-
-
-
-
-
0.2
0.45
0.6
0.4
0.55
-
-
-
-
-
0.3
0.65
0.8
0.6
0.8
V
V
V
V
V
1.08
0.65V
CC
1.7
2.0
-
-
-
-
V
CC
- 0.2
1.2
1.8
2.2
2.4
2.2
-40 °C to +85 °C
Typ
[1]
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max
-
-
-
-
0.12
0.35V
CC
0.7
0.8
-
-
-
-
-
-
-40 °C to +125 °C
Min
1.08
0.65V
CC
1.7
2.0
-
-
-
-
V
CC
- 0.3
1.05
1.65
2.05
2.25
2.0
Max
-
-
-
-
0.12
0.7
0.8
-
-
-
-
-
-
V
V
V
V
V
V
V
V
V
V
V
V
V
Unit
0.35V
CC
V
74LVC126A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 9 — 21 August 2018
4 / 14
Nexperia
74LVC126A
Quad buffer/line driver with 5 V tolerant input/outputs; 3-state
Conditions
Min
V
CC
= 3.6 V; V
I
= 5.5 V or GND
V
I
= V
IH
or V
IL
; V
CC
= 3.6 V;
V
O
= 5.5 V or GND
-
-
-
-
-
-40 °C to +85 °C
Typ
[1]
±0.1
±0.1
±0.1
0.1
5
Max
±5
±5
±10
10
500
-40 °C to +125 °C
Min
-
-
-
-
-
Max
±20
±20
±20
40
5000
μA
μA
μA
μA
μA
Unit
Symbol Parameter
I
I
I
OZ
I
OFF
I
CC
ΔI
CC
input leakage
current
OFF-state output
current
power-off leakage V
CC
= 0 V; V
I
or V
O
= 5.5 V
current
supply current
additional supply
current
input capacitance
V
CC
= 3.6 V; V
I
= V
CC
or GND;
I
O
= 0 A
per input pin;
V
CC
= 1.65 V to 3.6 V;
V
I
= V
CC
- 0.6 V; I
O
= 0 A
V
CC
= 0 V to 3.6 V;
V
I
= GND to V
CC
C
I
[1]
-
4.0
-
-
-
pF
All typical values are measured at V
CC
= 3.3 V (unless stated otherwise) and T
amb
= 25 °C.
10. Dynamic characteristics
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V). For test circuit see
Fig. 8.
Symbol Parameter
t
pd
propagation delay
Conditions
Min
nA to nY; see
Fig. 6
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
en
enable time
nOE to nY; see
Fig. 7
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
t
dis
disable time
nOE to nY; see
Fig. 7
V
CC
= 1.2 V
V
CC
= 1.65 V to 1.95 V
V
CC
= 2.3 V to 2.7 V
V
CC
= 2.7 V
V
CC
= 3.0 V to 3.6 V
[2]
-
1.0
0.5
1.5
1.3
8.0
3.3
1.8
3.4
2.5
-
10.0
5.6
6.7
6.0
-
1.0
0.5
1.5
1.3
-
11.5
6.5
8.5
7.5
ns
ns
ns
ns
ns
[2]
-
2.4
2.0
1.5
1.0
15.0
6.7
3.8
3.1
3.1
-
12.9
7.1
6.3
5.7
-
2.4
2.0
1.5
1.0
-
15.0
8.3
8.0
7.5
ns
ns
ns
ns
ns
[2]
-
1.5
1.0
1.5
1.0
11.0
5.2
2.8
2.7
2.4
-
10.8
5.6
5.2
4.7
-
1.5
1.0
1.5
1.0
-
12.6
6.6
6.5
6.0
ns
ns
ns
ns
ns
-40 °C to +85 °C
Typ
[1]
Max
-40 °C to +125 °C Unit
Min
Max
74LVC126A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 9 — 21 August 2018
5 / 14
