74LVC244A-Q100;
74LVCH244A-Q100
Octal buffer/line driver; 3-state
Rev. 3 — 13 August 2018
Product data sheet
1. General description
The 74LVC244A-Q100; 74LVCH244A-Q100 is an octal non-inverting buffer/line driver with 3-state
outputs. The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on
nOE causes the outputs to assume a high-impedance OFF-state. Schmitt-trigger action at all inputs
makes the circuit highly tolerant for slower input rise and fall times.
Inputs can be driven from either 3.3 V or 5.0 V devices. In 3-state operation, outputs can handle
5 V. These features allow the use of these devices as translators in a mixed 3.3 V and 5 V
environment.
The 74LVCH244A-Q100 bus hold on data inputs eliminates the need for external pull-up resistors
to hold unused 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
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
Inputs accept voltages up to 5.5 V
High-impedance when V
CC
= 0 V
Bus hold on all data inputs (74LVCH244A-Q100 only)
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:
•
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 Ω)
Multiple package options
•
•
Nexperia
74LVC244A-Q100; 74LVCH244A-Q100
Octal buffer/line driver; 3-state
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range
74LVC244AD-Q100
74LVC244APW-Q100
74LVCH244APW-Q100
74LVC244ABQ-Q100
-40 °C to +125 °C
-40 °C to +125 °C
-40 °C to +125 °C
Name
SO20
TSSOP20
Description
plastic small outline package; 20 leads;
body width 7.5 mm
plastic thin shrink small outline package;
20 leads; body width 4.4 mm
Version
SOT163-1
SOT360-1
SOT764-1
DHVQFN20 plastic dual in-line compatible thermal
enhanced very thin quad flat package;
no leads; 20 terminals;
body 2.5 × 4.5 × 0.85 mm
4. Functional diagram
2
1A0
1Y0
18
4
1A1
1Y1
16
6
1A2
1Y2
14
1
EN
18
16
14
12
8
1
1A3
1OE
1Y3
12
2
4
6
8
17
2A0
2Y0
3
15
19
EN
9
7
5
3
mna873
2A1
2Y1
5
13
2A2
2Y2
7
11
13
15
17
11
19
2A3
2OE
2Y3
9
mna875
Fig. 1.
IEC logic diagram
Fig. 2.
Functional diagram
74LVC_LVCH244A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 3 — 13 August 2018
2 / 15
Nexperia
74LVC244A-Q100; 74LVCH244A-Q100
Octal buffer/line driver; 3-state
1A0
2
18
1Y0
2A0
17
3
2Y0
1A1
4
16
1Y1
2A1
15
5
2Y1
1A2
6
14
1Y2
2A2
13
7
2Y2
1A3
1OE
8
1
12
1Y3
2A3
2OE
11
19
9
2Y3
mna874
Fig. 3.
Logic symbol
5. Pinning information
5.1. Pinning
74LVC244A-Q100
1OE
2
3
4
5
6
7
8
9
GND 10
2A3 11
GND
(1)
1
terminal 1
index area
1A0
2Y0
1A1
20 V
CC
19
2OE
18
1Y0
17
2A0
16
1Y1
15
2A1
14
1Y2
13
2A2
12
1Y3
aaa-003858
©
74LVC244A-Q100
74LVCH244A-Q100
1OE
1A0
2Y0
1A1
2Y1
1A2
2Y2
1A3
2Y3
1
2
3
4
5
6
7
8
9
20 V
CC
19 2OE
18 1Y0
17 2A0
16 1Y1
15 2A1
14 1Y2
13 2A2
12 1Y3
11 2A3
aaa-003857
2Y1
1A2
2Y2
1A3
2Y3
Transparent top view
GND 10
Fig. 4.
Pin configuration SOT163-1 (SO20)
and SOT360-1 (TSSOP20)
(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 SOT764-1 (DHVQFN20)
74LVC_LVCH244A_Q100
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 3 — 13 August 2018
3 / 15
Nexperia
74LVC244A-Q100; 74LVCH244A-Q100
Octal buffer/line driver; 3-state
5.2. Pin description
Table 2. Pin description
Symbol
1OE, 2OE
1A0, 1A1, 1A2, 1A3
2Y0, 2Y1, 2Y2, 2Y3
GND
2A0, 2A1, 2A2, 2A3
1Y0, 1Y1, 1Y2, 1Y3,
V
CC
Pin
1, 19
2, 4, 6, 8
3, 5, 7, 9
10
17, 15, 13, 11
18, 16, 14, 12
20
Description
output enable input (active low)
data input
data output
ground (0 V)
data input
data output
supply voltage
6. Functional description
Table 3. Function table
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
Control
nOE
L
L
H
Input
nAn
L
H
X
Output
nYn
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
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
output 3-state
V
O
= 0 V to V
CC
[2]
[2]
Min
-0.5
-50
-0.5
-
-0.5
-0.5
-
-
-100
-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
[3]
-
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 SO20 packages: above 70 °C derate linearly with 8 mW/K.
For TSSOP20 packages: above 60 °C derate linearly with 5.5 mW/K.
For DHVQFN20 packages: above 60 °C derate linearly with 4.5 mW/K.
74LVC_LVCH244A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 3 — 13 August 2018
4 / 15
Nexperia
74LVC244A-Q100; 74LVCH244A-Q100
Octal buffer/line driver; 3-state
8. Recommended operating conditions
Table 5. Recommended operating conditions
Symbol Parameter
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
output 3-state
in free air
V
CC
= 1.2 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
Conditions
Min
1.65
1.2
0
0
0
-40
0
0
Typ
-
-
-
-
-
-
-
-
Max
3.6
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
Conditions
-40 °C to +85 °C
Min
HIGH-level input V
CC
= 1.2 V
voltage
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 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
= -18 mA; V
CC
= 3.0 V
I
O
= -24 mA; V
CC
= 3.0 V
V
OL
LOW-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
= 24 mA; V
CC
= 3.0 V
V
CC
- 0.2
1.2
1.8
2.2
2.4
2.2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.2
0.45
0.6
0.4
0.55
V
CC
- 0.3
1.05
1.65
2.05
2.25
2.0
-
-
-
-
-
-
-
-
-
-
-
0.3
0.65
0.8
0.6
0.8
V
V
V
V
V
V
V
V
V
V
V
1.08
0.65V
CC
1.7
2.0
-
-
-
-
Typ
[1]
-
-
-
-
-
-
-
-
Max
-
-
-
-
0.12
0.35 V
CC
0.7
0.8
-40 °C to +125 °C Unit
Min
1.08
0.65V
CC
1.7
2.0
-
-
-
-
Max
-
-
-
-
0.12
0.7
0.8
V
V
V
V
V
V
V
0.35 V
CC
V
74LVC_LVCH244A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 3 — 13 August 2018
5 / 15
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