74ABT126
Rev. 5 — 4 April 2017
Quad buffer; 3-state
Product data sheet
1
General description
The 74ABT126 high-performance BiCMOS device combines low static and dynamic
power dissipation with high speed and high output drive.
The 74ABT126 device is a quad buffer that is ideal for driving bus lines. The device
features four output enable inputs (nOE) each controlling one of the 3-state outputs (nY).
2
Features and benefits
•
•
•
•
•
•
•
Quad bus interface
3-state buffers
Live insertion and extraction permitted
Output capability: +64 mA and -32 mA
Inputs are disabled during 3-state mode
Power-up 3-state
Latch-up protection:
–
JESD78: exceeds 500 mA
•
ESD protection:
–
MIL STD 883 method 3015: exceeds 2000 V
–
MM JESD22-A115-A exceeds 200 V
3
Ordering information
Package
Temperature
range
Name
SO14
SSOP14
TSSOP14
Table 1. Ordering information
Type number
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
74ABT126D
74ABT126DB
74ABT126PW
-40 °C to +85 °C
-40 °C to +85 °C
-40 °C to +85 °C
Nexperia
74ABT126
Quad buffer; 3-state
4
Functional diagram
2
1A
1Y
3
2
1
EN1
6
1
3
1 1OE
5
2A
2Y
6
5
4
4 2OE
9
3A
3Y
8
9
10
10 3OE
12
4A
4Y
11
8
12
13
13 4OE
001aac482
11
001aac483
Figure 1. Logic symbol
Figure 2. IEC logic symbol
5
Pinning information
5.1 Pinning
74ABT126
1OE
1A
1Y
2OE
2A
2Y
GND
1
2
3
4
5
6
7
aaa-026566
14 V
CC
13 4OE
12 4A
11 4Y
10 3OE
9
8
3A
3Y
1OE
1A
1Y
2OE
2A
2Y
GND
1
2
3
4
5
6
7
74ABT126
14 V
CC
13 4OE
12 4A
11 4Y
10 3OE
9
8
aaa-026567
3A
3Y
Figure 3. Pin configuration SOT108-1 (SO14)
Figure 4. Pin configuration SOT337-1 (SSOP14) and
SOT402-1 (TSSOP14)
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
output enable inputs
data inputs
data outputs
ground (0 V)
supply voltage
74ABT126
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 4 April 2017
2 / 14
Nexperia
74ABT126
Quad buffer; 3-state
6
Functional description
[1]
Table 3. Function table
Input
nOE
H
H
L
[1]
H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
Z = high-impedance OFF-state.
Output
nA
L
H
X
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 Parameter
V
CC
V
I
V
O
I
IK
I
OK
I
O
T
j
T
stg
[1]
[2]
Conditions
[1]
Min
-0.5
-1.2
-0.5
-18
-50
-
[2]
Max
+7.0
+7.0
+5.5
-
-
128
150
+150
Unit
V
V
V
mA
mA
mA
°C
°C
supply voltage
input voltage
output voltage
input clamping current
output clamping current
output current
junction temperature
storage temperature
output in OFF-state or HIGH-state
V
I
< 0 V
V
O
< 0 V
output in LOW-state
[1]
-
-65
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which
are detrimental to reliability.
8
Recommended operating conditions
Conditions
Min
4.5
0
-32
-
0
in free air
-40
Table 5. Recommended operating conditions
Symbol Parameter
V
CC
V
I
I
OH
I
OL
Δt/ΔV
T
amb
supply voltage
input voltage
HIGH-level output current
LOW-level output current
input transition rise and fall rate
ambient temperature
Typ
-
-
-
-
-
-
Max
5.5
V
CC
-
64
10
+85
Unit
V
V
mA
mA
ns/V
°C
74ABT126
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 4 April 2017
3 / 14
Nexperia
74ABT126
Quad buffer; 3-state
9
Static characteristics
Table 6. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
T
amb
= 25 °C
Min
Typ
-0.9
-
-
T
amb
=
Unit
-45 °C to +85 °C
Min
-1.2
2.0
-
Max
-
-
0.8
Max
-
-
0.8
V
V
V
V
IK
V
IH
V
IL
V
OH
input clamping
voltage
HIGH-level input
voltage
LOW-level input
voltage
HIGH-level output
voltage
V
CC
= 4.5 V; I
IK
= -18 mA
-1.2
2.0
-
V
CC
= 4.5 V; V
I
= V
IL
or V
IH
I
OH
= -3 mA
I
OH
= -32 mA
V
CC
= 5.0 V; V
I
= V
IL
or V
IH
I
OH
= -3 mA
3.0
-
-
-
[1]
2.5
2.0
2.9
2.4
3.4
0.35
±0.01
±5.0
±5.0
-
-
-
0.55
±1.0
±100
±50
2.5
2.0
3.0
-
-
-
-
-
-
-
0.55
±1.0
±100
±50
V
V
V
V
μA
μA
μA
V
OL
I
I
I
OFF
I
O(pu/pd)
I
OZ
LOW-level output
voltage
V
CC
= 4.5 V; V
I
= V
IL
or V
IH
I
OL
= 64mA
V
CC
= 0 V; V
O
or V
I
≤ 4.5 V
V
CC
= 2.1 V; V
O
= 0.5 V;
V
I
= GND or V
CC
; nOE = don’t care
V
CC
= 5.5 V; V
I
= V
IL
or V
IH
output HIGH-state at V
O
= 2.7 V
output LOW-state at V
O
= 0.5 V
V
CC
= 5.5 V; V
O
= 5.5 V;
V
I
= GND or V
CC
V
CC
= 5.5 V; V
O
= 2.5 V
V
CC
= 5.5 V; V
I
= GND or V
CC
outputs HIGH-state
outputs LOW-state
outputs 3-state
-
-
-
65
12
65
250
15
250
-
-
-
250
15
250
μA
mA
μA
[2]
input leakage current V
CC
= 5.5 V; V
I
= GND or 5.5 V
power-off leakage
current
power-up/power-
down output current
OFF-state output
current
-
-
-50
-
-180
1.0
-1.0
5.0
-100
50
-
50
-50
-
-50
-
-180
50
-
50
-50
μA
μA
μA
mA
I
CEX
I
O
I
CC
output high leakage
current
output current
supply current
ΔI
CC
additional supply
current
per data input pin one data input at 3.4 V and other
inputs at V
CC
or GND; V
CC
= 5.5 V
outputs enabled
outputs 3-state
[3]
-
-
0.5
50
1.5
250
-
-
1.5
250
mA
μA
74ABT126
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 4 April 2017
4 / 14
Nexperia
74ABT126
Conditions
T
amb
= 25 °C
Min
per enable input
pin
one enable input at 3.4 V and other
inputs at V
CC
or GND; V
CC
= 5.5 V
outputs 3-state
V
I
= 0 V or V
CC
outputs disabled; V
O
= 0 V or V
CC
[3]
Quad buffer; 3-state
Symbol Parameter
T
amb
=
Unit
-45 °C to +85 °C
Min
Max
Typ
Max
-
-
-
0.5
4
7
1.5
-
-
-
-
-
1.5
-
-
mA
pF
pF
C
I
C
O
[1]
[2]
[3]
input capacitance
output capacitance
This parameter is valid for any V
CC
between 0 V and 2.1 V, with a transition time of up to 10 ms. From V
CC
= 2.1 V to V
CC
= 5 V ± 10 % a transition time of
up to 100 μs is permitted.
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
This is the increase in supply current for each input at 3.4 V.
10 Dynamic characteristics
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); for test circuit see
Figure 7.
Symbol Parameter
Conditions
T
amb
= 25 °C;
V
CC
= 5.0 V
Min
Typ
2.9
3.0
3.2
4.4
4.2
2.9
T
amb
= -40 °C to +85 °C; Unit
V
CC
= 5.0 V ± 0.5 V
Min
1.0
1.0
1.5
1.9
1.0
1.0
Max
4.2
4.3
5.8
5.9
5.2
4.9
Max
4.4
4.6
6.5
6.5
5.8
5.5
ns
ns
ns
ns
ns
ns
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
LOW to HIGH
propagation delay
HIGH to LOW
propagation delay
OFF-state to HIGH
propagation delay
OFF-state to LOW
propagation delay
HIGH to OFF-state
propagation delay
LOW to OFF-state
propagation delay
nA to nY; see
Figure 5
nA to nY; see
Figure 5
see
Figure 6
see
Figure 6
see
Figure 6
see
Figure 6
1.0
1.0
1.5
1.9
1.0
1.0
74ABT126
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 4 April 2017
5 / 14
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