74LVT244A-Q100;
74LVTH244A-Q100
3.3 V octal buffer/line driver; 3-state
Rev. 1 — 22 April 2013
Product data sheet
1. General description
The 74LVT244A-Q100; 74LVTH244A-Q100 is a high-performance BiCMOS product
designed for V
CC
operation at 3.3 V.
This device is an octal buffer that is ideal for driving bus lines. The device features two
output enables (1OE, 2OE), each controlling four of the 3-state outputs.
This product has been qualified to the Automotive Electronics Council (AEC) standard
Q100 (Grade 3) and is suitable for use in automotive applications.
2. Features and benefits
Automotive product qualification in accordance with AEC-Q100 (Grade 3)
Specified from
40 C
to +85
C
Octal 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 need for external pull-up resistors to hold unused inputs
Live insertion and extraction permitted
Power-up 3-state
No bus current loading when output is tied to 5 V bus
Latch-up protection
JESD78 Class II exceeds 500 mA
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
)
Nexperia
74LVT244A-Q100; 74LVTH244A-Q100
3.3 V octal buffer/line driver; 3-state
3. Ordering information
Table 1.
Ordering information
Package
Temperature range Name
74LVT244AD-Q100
74LVTH244AD-Q100
74LVT244APW-Q100
74LVTH244APW-Q100
74LVT244ABQ-Q100
74LVTH244ABQ-Q100
40 C
to +85
C
40 C
to +85
C
TSSOP20
40 C
to +85
C
SO20
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
Type number
DHVQFN20 plastic dual in-line compatible thermal enhanced SOT764-1
very thin quad flat package; no leads;
20 terminals; body 2.5
4.5
0.85 mm
4. Functional diagram
1A0
1Y0
2
18
4
1A1
1Y1
16
1
EN
18
16
14
12
6
1A2
1Y2
14
2
8
1
1A3
1OE
1Y3
12
4
6
8
11
2A0
2Y0
9
19
EN
9
7
5
3
mna826
13
2A1
2Y1
7
11
13
15
2A2
2Y2
5
15
17
17
19
2A3
2OE
2Y3
3
mna825
Fig 1.
Logic symbol
Fig 2.
IEC logic symbol
74LVT_LVTH244A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 22 April 2013
2 of 15
Nexperia
74LVT244A-Q100; 74LVTH244A-Q100
3.3 V octal buffer/line driver; 3-state
5. Pinning information
5.1 Pinning
/97$4
/97+$4
2(
*1'
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*1'
WHUPLQDO
LQGH[ DUHD
9
&&
2(
<
$
<
$
<
$
<
/97$4
/97+$4
2(
$
<
$
<
$
<
$
<
9
&&
2(
<
$
<
$
<
$
<
$
DDD
$
<
$
<
$
<
$
<
*1'
DDD
7UDQVSDUHQW WRS YLHZ
(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 3.
Pin configuration for SO20 and TSSOP20
Fig 4.
Pin configuration for DHVQFN20
5.2 Pin description
Table 2.
Symbol
1OE, 2OE
1A0, 1A1, 1A2, 1A3
2Y0, 2Y1, 2Y2, 2Y3
GND
2A0, 2A1, 2A2, 2A3
1Y0, 1Y1, 1Y2, 1Y3,
V
CC
Pin description
Pin
1, 19
2, 4, 6, 8
9, 7, 5, 3
10
Description
output enable input (active low)
data input
data output
ground (0 V)
11, 13, 15, 17 data input
18, 16, 14, 12 data output
20
supply voltage
74LVT_LVTH244A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 22 April 2013
3 of 15
Nexperia
74LVT244A-Q100; 74LVTH244A-Q100
3.3 V octal buffer/line driver; 3-state
6. Functional description
6.1 Function table
Table 3.
Control
nOE
L
H
[1]
Function table
[1]
Input
nAn
L
H
X
Output
nYn
L
H
Z
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
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
V
O
I
IK
I
OK
I
O
T
stg
T
j
P
tot
[1]
[2]
[3]
Parameter
supply voltage
input voltage
output voltage
input clamping current
output clamping current
output current
storage temperature
junction temperature
total power dissipation
Conditions
[1]
Min
0.5
0.5
0.5
-
-
-
-
65
[2]
Max
+4.6
+7.0
+7.0
50
50
128
64
+150
150
500
Unit
V
V
V
mA
mA
mA
mA
C
C
mW
output in OFF-state or
HIGH-state
V
I
< 0 V
V
O
< 0 V
output in LOW-state
output in HIGH-state
[1]
-
T
amb
=
40
to +85
C
[3]
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.
For SO20 package: above 70
C
derate linearly with 8 mW/K.
For TSSOP20 package: above 60
C
derate linearly with 5.5 mW/K.
For DHVQFN20 package: above 60
C
derate linearly with 4.5 mW/K.
8. Recommended operating conditions
Table 5.
Symbol
V
CC
V
I
I
OH
Operating conditions
Parameter
supply voltage
input voltage
HIGH-level output current
Conditions
Min
2.7
0
-
Typ
-
-
-
Max
3.6
5.5
32
Unit
V
V
mA
74LVT_LVTH244A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 22 April 2013
4 of 15
Nexperia
74LVT244A-Q100; 74LVTH244A-Q100
3.3 V octal buffer/line driver; 3-state
Table 5.
Symbol
I
OL
T
amb
t/V
Operating conditions
…continued
Parameter
LOW-level output current
ambient temperature
Conditions
none
current duty cycle
50 %; f
i
1 kHz
in free-air
input transition rise and fall rate outputs enabled
Min
-
-
40
-
Typ
-
-
-
-
Max
32
64
+85
10
Unit
mA
mA
C
ns/V
9. Static characteristics
Table 6.
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
T
amb
=
40 C
to +85
C
[1]
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
= 2.7 V to 3.6 V; I
OH
=
100 A
V
CC
= 2.7 V to 3.6 V; I
OH
=
8
mA
V
CC
= 3.0 V; I
OH
=
32
mA
V
OL
LOW-level output voltage
V
CC
= 2.7 V; I
OL
= 100
A
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
I
OFF
I
BHL
I
BHH
I
BHLO
I
BHHO
I
LO
I
O(pu/pd)
power-off leakage current
bus hold LOW current
bus hold HIGH current
bus hold LOW
overdrive current
bus hold HIGH
overdrive current
output leakage current
power-up/power-down
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
nAn input;
V
CC
= 0 V to 3.6 V; V
I
= 3.6 V
nAn input;
V
CC
= 0 V to 3.6 V; V
I
= 3.6 V
nYn 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
[4]
[3]
[2]
Conditions
V
CC
= 2.7 V; I
IK
=
18
mA
Min
1.2
2.0
-
2.4
2.0
-
-
-
-
-
-
-
-
5
-
75
500
-
-
-
Typ
0.9
-
-
2.5
2.2
0.1
0.3
0.25
0.3
0.4
0.1
0.1
0.1
1
1
150
150
-
-
60
1
Max
-
-
0.8
-
-
-
0.2
0.5
0.4
0.5
0.55
10
1
1
100
-
75
-
500
125
100
Unit
V
V
V
V
V
V
V
V
V
V
V
A
A
A
A
A
A
A
A
A
A
A
V
CC
0.2 V
CC
0.1
74LVT_LVTH244A_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 22 April 2013
5 of 15
嵌入式系统
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