74AHC126-Q100; 74AHCT126-Q100
Quad buffer/line driver; 3-state
Rev. 1 — 10 July 2012
Product data sheet
1. General description
The 74AHC126-Q100; 74AHCT126-Q100 is a high-speed Si-gate CMOS device and is
pin compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance with
JEDEC standard No. 7A.
The 74AHC126-Q100; 74AHCT126-Q100 provides four non-inverting buffer/line drivers
with 3-state outputs. The 3-state outputs (nY) are controlled by the output enable input
(nOE). A LOW-level at pin nOE causes the outputs to assume a high-impedance
OFF-state.
The 74AHC126-Q100; 74AHCT126-Q100 is identical to the 74AHC125-Q100;
74AHCT125-Q100 but has active HIGH output enable inputs.
This product has been qualified to the Automotive Electronics Council (AEC) standard
Q100 (Grade 1) and is suitable for use in automotive applications.
2. Features and benefits
Automotive product qualification in accordance with AEC-Q100 (Grade 1)
Specified from
40 C
to +85
C
and from
40 C
to +125
C
Balanced propagation delays
All inputs have Schmitt trigger action
Inputs accept voltages higher than V
CC
Input levels:
For 74AHC126-Q100: CMOS level
For 74AHCT126-Q100: TTL level
ESD protection:
MIL-STD-883, method 3015 exceeds 2000 V
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V (C = 200 pf, R = 0
)
Multiple package options
NXP Semiconductors
74AHC126-Q100; 74AHCT126-Q100
Quad buffer/line driver; 3-state
3. Ordering information
Table 1.
Ordering information
Package
Temperature range Name
74AHC126D-Q100
74AHCT126D-Q100
74AHC126PW-Q100
74AHCT126PW-Q100
74AHC126BQ-Q100
74AHCT126BQ-Q100
40 C
to +125
C
40 C
to +125
C
TSSOP14
40 C
to +125
C
SO14
Description
plastic small outline package; 14 leads;
body width 3.9 mm
plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
Version
SOT108-1
SOT402-1
Type number
DHVQFN14 plastic dual in-line compatible thermal enhanced
SOT762-1
very thin quad flat package; no leads; 14 terminals;
body 2.5
3
0.85 mm
4. Functional diagram
2
1
5
4
9
10
12
13
1A
1OE
2A
2OE
3A
3OE
4A
4OE
1Y
3
2Y
6
3Y
8
4Y
11
mna235
Fig 1.
Functional diagram
2
1
5
EN1
1
3
6
4
9
8
10
nA
nY
12
11
13
nOE
mna234
mna236
Fig 2.
Logic symbol
Fig 3.
IEC logic symbol
74AHC_AHCT126_Q100
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 1 — 10 July 2012
2 of 16
NXP Semiconductors
74AHC126-Q100; 74AHCT126-Q100
Quad buffer/line driver; 3-state
5. Pinning information
5.1 Pinning
$+&4
$+&74
2(
$
<
2(
$
<
*1'
DDD
$+&4
$+&74
2(
*1'
<
*1'
WHUPLQDO
LQGH[ DUHD
$
<
2(
$
<
9
&&
2(
$
<
2(
$
DDD
9
&&
2(
$
<
2(
$
<
7UDQVSDUHQW WRS YLHZ
(1) The die substrate is attached to this pad using
conductive die attach material. It cannot be used as
a supply pin or input.
Fig 4. Pin configuration SO14 and TSSOP14
Fig 5. Pin configuration DHVQFN14
5.2 Pin description
Table 2.
Symbol
1OE
1A
1Y
2OE
2A
2Y
GND
3Y
3A
3OE
4Y
4A
4OE
V
CC
Pin description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Description
output enable input 1 (active HIGH)
data input 1
data output 1
output enable input 2 (active HIGH)
data input 2
data output 2
ground (0 V)
data output 3
data input 3
output enable input 3 (active HIGH)
data output 4
data input 4
output enable input 4 (active HIGH)
supply voltage
74AHC_AHCT126_Q100
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 1 — 10 July 2012
3 of 16
NXP Semiconductors
74AHC126-Q100; 74AHCT126-Q100
Quad buffer/line driver; 3-state
6. Functional description
Table 3.
Control
nOE
H
H
L
[1]
H = HIGH voltage state;
L = LOW voltage state;
X = don’t care;
Z = high-impedance OFF-state.
Function table
[1]
Input
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). Voltages are referenced to GND (ground = 0 V).
Symbol
V
CC
V
I
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
P
tot
[1]
[2]
Parameter
supply voltage
input voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
Conditions
Min
0.5
0.5
Max
+7.0
+7.0
-
+20
+25
+75
-
+150
500
Unit
V
V
mA
mA
mA
mA
mA
C
mW
V
I
<
0.5
V
V
O
<0.5 V or V
O
> V
CC
+ 0.5 V
V
O
=
0.5
V to (V
CC
+ 0.5 V)
[1]
[1]
20
20
25
-
75
65
T
amb
=
40 C
to +125
C
[2]
-
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For SO14 packages: above 70
C
the value of P
tot
derates linearly at 8 mW/K.
For TSSOP14 packages: above 60
C
the value of P
tot
derates linearly at 5.5 mW/K.
For DHVQFN14 packages: above 60
C
the value of P
tot
derates linearly at 4.5 mW/K.
74AHC_AHCT126_Q100
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 1 — 10 July 2012
4 of 16
NXP Semiconductors
74AHC126-Q100; 74AHCT126-Q100
Quad buffer/line driver; 3-state
8. Recommended operating conditions
Table 5.
Symbol
74AHC126-Q100
V
CC
V
I
V
O
T
amb
t/V
74AHCT126-Q100
V
CC
V
I
V
O
T
amb
t/V
supply voltage
input voltage
output voltage
ambient temperature
input transition rise and fall rate
V
CC
= 4.5 V to 5.5 V
4.5
0
0
40
-
5.0
-
-
+25
-
5.5
5.5
V
CC
+125
20
V
V
V
C
ns/V
supply voltage
input voltage
output voltage
ambient temperature
input transition rise and fall rate
V
CC
= 3.0 V to 3.6 V
V
CC
= 4.5 V to 5.5 V
2.0
0
0
40
-
-
5.0
-
-
+25
-
-
5.5
5.5
V
CC
+125
100
20
V
V
V
C
ns/V
ns/V
Operating conditions
Parameter
Conditions
Min
Typ
Max
Unit
9. Static characteristics
Table 6.
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
74AHC126-Q100
V
IH
HIGH-level
input voltage
V
CC
= 2.0 V
V
CC
= 3.0 V
V
CC
= 5.5 V
V
IL
LOW-level
input voltage
V
CC
= 2.0 V
V
CC
= 3.0 V
V
CC
= 5.5 V
V
OH
HIGH-level
V
I
= V
IH
or V
IL
output voltage
I
O
=
50 A;
V
CC
= 2.0 V
I
O
=
50 A;
V
CC
= 3.0 V
I
O
=
50 A;
V
CC
= 4.5 V
I
O
=
4.0
mA; V
CC
= 3.0 V
I
O
=
8.0
mA; V
CC
= 4.5 V
V
OL
LOW-level
V
I
= V
IH
or V
IL
output voltage
I
O
= 50
A;
V
CC
= 2.0 V
I
O
= 50
A;
V
CC
= 3.0 V
I
O
= 50
A;
V
CC
= 4.5 V
I
O
= 4.0 mA; V
CC
= 3.0 V
I
O
= 8.0 mA; V
CC
= 4.5 V
74AHC_AHCT126_Q100
Conditions
Min
1.5
2.1
3.85
-
-
-
1.9
2.9
4.4
2.58
3.94
-
-
-
-
-
25
C
Typ
-
-
-
-
-
-
2.0
3.0
4.5
-
-
0
0
0
-
-
Max
-
-
-
0.5
0.9
1.65
-
-
-
-
-
0.1
0.1
0.1
0.36
0.36
40 C
to +85
C 40 C
to +125
C
Unit
Min
1.5
2.1
3.85
-
-
-
1.9
2.9
4.4
2.48
3.80
-
-
-
-
-
Max
-
-
-
0.5
0.9
1.65
-
-
-
-
-
0.1
0.1
0.1
0.44
0.44
Min
1.5
2.1
3.85
-
-
-
1.9
2.9
4.4
2.40
3.70
-
-
-
-
-
Max
-
-
-
0.5
0.9
1.65
-
-
-
-
-
0.1
0.1
0.1
0.55
0.55
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 1 — 10 July 2012
5 of 16
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