74LVT126
3.3 V quad buffer; 3-state
Rev. 5 — 14 June 2017
Product data sheet
1
General description
The LVT126 is a high-performance BiCMOS product designed for V
CC
operation at 3.3 V.
This device combines low static and dynamic power dissipation with high speed and high
output drive. The 74LVT126 device is a quad buffer that is ideal for driving bus lines. The
device features four output enable inputs (1OE, 2OE, 3OE and 4OE), each controlling
one of the 3-state outputs.
2
Features and benefits
•
•
•
•
•
•
•
•
•
•
•
Quad bus interface
3-state buffers
Output capability: +64 mA and -32 mA
TTL input and output switching levels
Input and output interface capability to systems at 5 V supply
Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused
inputs
Live insertion and extraction permitted
No bus current loading when output is tied to 5 V bus
Power-up 3-state
Latch-up protection:
–
JESD78: exceeds 500 mA
ESD protection:
–
MIL STD 883 method 3015: exceeds 2000 V
–
MM: exceeds 200 V
Nexperia
3.3 V quad buffer; 3-state
74LVT126
3
Ordering information
Package
Temperature
range
-40 °C to +85 °C
Table 1. Ordering information
Type
number
74LVT126D
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 shrink small outline package; 14 leads;
body width 4.4 mm
Version
SOT108-1
SOT337-1
SOT402-1
SOT762-1
74LVT126DB -40 °C to +85 °C
74LVT126PW -40 °C to +85 °C
74LVT126BQ -40 °C to +85 °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
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
74LVT126
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 14 June 2017
2 / 16
Nexperia
3.3 V quad buffer; 3-state
74LVT126
5
Pinning information
5.1 Pinning
74LVT126
1OE
2
3
4
5
6
7
GND
3Y
8
GND
(1)
1
terminal 1
index area
1A
1Y
2OE
2A
14 V
CC
13 4OE
12 4A
11 4Y
10 3OE
9
3A
74LVT126
1OE
1A
1Y
2OE
2A
2Y
GND
1
2
3
4
5
6
7
aaa-026920
2Y
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
74LVT126
14 V
CC
13 4OE
12 4A
11 4Y
10 3OE
9
8
aaa-026921
aaa-026922
Transparent top view
3A
3Y
(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.
Figure 5. Pin configuration
DHVQFN14
Figure 3. Pin configuration SO14
Figure 4. Pin configuration
(T)SSOP14
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
74LVT126
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 14 June 2017
3 / 16
Nexperia
3.3 V quad buffer; 3-state
74LVT126
6
Functional description
Table 3. Function table
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
Input
nOE
H
H
L
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
stg
T
j
[1]
[2]
Conditions
[1]
Min
-0.5
-0.5
-0.5
-50
-50
-
-
-65
[2]
Max
+4.6
+7.0
+7.0
-
-
128
-64
+150
150
Unit
V
V
V
mA
mA
mA
mA
°C
°C
supply voltage
input voltage
output voltage
input clamping current
output clamping current
output current
storage temperature
junction temperature
output in OFF-state or HIGH-state
V
I
< 0 V
V
O
< 0 V
output in LOW-state
output in HIGH-state
[1]
-
The input and output negative voltage ratings may be exceeded if the input and output clamp 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
2.7
0
-32
none
current duty cycle ≤ 50 %; f ≥ 1 kHz
in free air
outputs enabled
-
-
-40
-
Table 5. Operating conditions
Symbol Parameter
V
CC
V
I
I
OH
I
OL
T
amb
Δt/ΔV
supply voltage
input voltage
HIGH-level output current
LOW-level output current
ambient temperature
input transition rise and fall rate
Typ
-
-
-
-
-
-
-
Max
3.6
5.5
-
32
64
+85
10
Unit
V
V
mA
mA
mA
°C
ns/V
74LVT126
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 14 June 2017
4 / 16
Nexperia
3.3 V quad buffer; 3-state
74LVT126
9
Static characteristics
Table 6. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
V
IK
V
IH
V
IL
V
OH
input clamping voltage
HIGH-level input voltage
LOW-level input voltage
HIGH-level output voltage
Conditions
V
CC
= 2.7 V; I
IK
= -18 mA
Min
-1.2
2.0
-
Typ
-
-
[1]
Max
-
-
0.8
-
-
-
0.2
0.5
0.4
0.5
0.55
10
±1
1
-5
±100
-
-
-
-500
125
±100
Unit
V
V
V
V
V
V
V
V
V
V
V
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
-0.9
V
CC
= 2.7 V to 3.6 V; I
OH
= -100 μA
V
CC
= 2.7 V; I
OH
= -8 mA
V
CC
= 3.0 V; I
OH
= -32 mA
V
CC
- 0.2 V
CC
- 0.1
2.4
2.0
-
-
-
-
-
-
-
[2]
[2]
2.5
2.2
0.1
0.3
0.25
0.3
0.4
1
±0.1
0.1
-1
1
150
-150
-
-
60
±1
V
OL
LOW-level output voltage
V
CC
= 2.7 V; I
OL
= 100 μA
V
CC
= 2.7 V; I
OL
= 24 mA
V
CC
= 3.0 V; I
OL
= 16 mA
V
CC
= 3.0 V; I
OL
= 32 mA
V
CC
= 3.0 V; I
OL
= 64 mA
I
I
input leakage current
all input pins
V
CC
= 0 V or 3.6 V; V
I
= 5.5 V
control pins
V
CC
= 3.6 V; V
I
= V
CC
or GND
data pins
V
CC
= 3.6 V; V
I
= V
CC
V
CC
= 3.6 V; V
I
= 0 V
-
-
-
75
-75
[3]
I
OFF
I
BHL
I
BHH
I
BHLO
I
BHHO
I
EX
I
O(pu/pd)
I
OZ
power-off leakage current
bus hold LOW current
bus hold HIGH current
bus hold LOW overdrive
current
bus hold HIGH overdrive
current
external current
power-up/power-down
output current
OFF-state output current
V
CC
= 0 V; V
I
or V
O
= 0 V to 4.5 V
V
CC
= 3 V; V
I
= 0.8 V
V
CC
= 3 V; V
I
= 2.0 V
V
CC
= 3.6 V; V
I
= 0 V to 3.6 V
V
CC
= 3.6 V; V
I
= 0 V to 3.6 V
output in HIGH-state when V
O
> V
CC
;
V
O
= 5.5 V; V
CC
= 3.0 V
V
CC
≤ 1.2 V; V
O
= 0.5 V to V
CC
;
V
I
= GND or V
CC
; nOE = don’t care
V
CC
= 3.6 V
output HIGH: V
O
= 3.0 V
output LOW: V
O
= 0.5 V
[4]
500
-
-
-
[3]
-
-
-
-
1
-1
0.13
2
5
-5
0.19
7
μA
μA
mA
mA
I
CC
supply current
V
CC
= 3.6 V; V
I
= GND or V
CC
; I
O
= 0 A
outputs HIGH
outputs LOW
74LVT126
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 14 June 2017
5 / 16
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