www.ti.com
FEATURES
SN54LVT162244A . . . WD PACKAGE
SN74LVT162244A . . . DGG, DGV, OR DL PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OE
1Y1
1Y2
GND
1Y3
1Y4
V
CC
2Y1
2Y2
GND
2Y3
2Y4
3Y1
3Y2
GND
3Y3
3Y4
V
CC
4Y1
4Y2
GND
4Y3
4Y4
4OE
2OE
1A1
1A2
GND
1A3
1A4
V
CC
2A1
2A2
GND
2A3
2A4
3A1
3A2
GND
3A3
3A4
V
CC
4A1
4A2
GND
4A3
4A4
3OE
DESCRIPTION/ORDERING INFORMATION
SN54LVT162244A, SN74LVT162244A
3.3-V ABT 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS718C JUNE 2000 REVISED OCTOBER 2005
Members of the Texas Instruments WidebusTM
Family
Output Ports Have Equivalent 22-
Series
Resistors, So No External Resistors Are
Required
Support Mixed-Mode Signal Operation (5-V
Input and Output Voltages With 3.3-V V
CC
)
Support Unregulated Battery Operation Down
to 2.7 V
Typical V
OLP
(Output Ground Bounce)
<0.8 V at V
CC
= 3.3 V, T
A
= 25
C
I
off
and Power-Up 3-State Support Hot
Insertion
Distributed V
CC
and GND Pins Minimize
High-Speed Switching Noise
Flow-Through Architecture Optimizes PCB
Layout
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
2000-V Human-Body Model (A114-A)
200-V Machine Model (A115-A)
1000-V Charged-Device Model (C101)
The 'LVT162244A devices are 16-bit buffers and line drivers designed for low-voltage (3.3-V) V
CC
operation, but
with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as four
4-bit buffers, two 8-bit buffers, or one 16-bit buffer. These devices provide true outputs and symmetrical
active-low output-enable (OE) inputs.
The outputs, which are designed to source or sink up to 12 mA, include equivalent 22-
series resistors to
reduce overshoot and undershoot.
When V
CC
is between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 1.5 V, OE should be tied to V
CC
through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking capability of the driver.
These devices are fully specified for hot-insertion applications using I
off
and power-up 3-state. The I
off
circuitry
disables the outputs, preventing damaging current backflow through the devices when they are powered down.
The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,
which prevents driver conflict.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus is a trademark of Texas Instruments.
UNLESS
OTHERWISE
NOTED
this
document
contains
Copyright 20002005, Texas Instruments Incorporated
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
www.ti.com
GQL OR ZQL PACKAGE
(TOP VIEW)
J
H
G
F
E
D
C
B
A
2
1
3 4
6
5
K
GRD OR ZRD PACKAGE
(TOP VIEW)
J
H
G
F
E
D
C
B
A
2
1
3
4
6
5
SN54LVT162244A, SN74LVT162244A
3.3-V ABT 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS718C JUNE 2000 REVISED OCTOBER 2005
ORDERING INFORMATION
T
A
PACKAGE
(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
FBGA GRD
SN74LVT162244AGRDR
Tape and reel
LZ244A
FBGA ZRD (Pb-free)
SN74LVT162244AZRDR
Tube
SN74LVT162244AADL
SSOP DL
LVT162244A
Tape and reel
SN74LVT162244ADLR
SN74LVT162244ADGGR
40
C to 85
C
TSSOP DGG
Tape and reel
LVT162244A
74LVT162244ADGGRE4
SN74LVT162244ADGVR
TVSOP DGV
Tape and reel
LZ244A
74LVT162244ADGVRE4
VFBGA GQL
SN74LVT162244AGQLR
Tape and reel
LZ244A
VFBGA ZQL
SN74LVT162244AZQLR
55
C to 125
C
CFP WD
Tube
SNJ544LVT162244AWD
(2)
SNJ54LVT162244AWD
(1)
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
(2)
Product preview
TERMINAL ASSIGNMENTS
(1)
(56-Ball GQL/ZQL Package)
1
2
3
4
5
6
A
1OE
NC
NC
NC
NC
2OE
B
1Y2
1Y1
GND
GND
1A1
1A2
C
1Y4
1Y3
V
CC
V
CC
1A3
1A4
D
2Y2
2Y1
GND
GND
2A1
2A2
E
2Y4
2Y3
2A3
2A4
F
3Y1
3Y2
3A2
3A1
G
3Y3
3Y4
GND
GND
3A4
3A3
H
4Y1
4Y2
V
CC
V
CC
4A2
4A1
J
4Y3
4Y4
GND
GND
4A4
4A3
xxx
xxx
K
4OE
NC
NC
NC
NC
3OE
xxx
xxx
(1)
NC No internal connection
TERMINAL ASSIGNMENTS
(1)
(54-Ball GRD/ZRD Package)
1
2
3
4
5
6
A
1Y1
NC
1OE
2OE
NC
1A1
B
1Y3
1Y2
NC
NC
1A2
1A3
C
2Y1
1Y4
V
CC
V
CC
1A4
2A1
D
2Y3
2Y2
GND
GND
2A2
2A3
E
3Y1
2Y4
GND
GND
2A4
3A1
F
3Y3
3Y2
GND
GND
3A2
3A3
G
4Y1
3Y4
V
CC
V
CC
3A4
4A1
H
4Y3
4Y2
NC
NC
4A2
4A3
J
4Y4
NC
4OE
3OE
NC
4A4
(1)
NC No internal connection
2
www.ti.com
1OE
1A1
1A2
1A3
1A4
1Y1
1Y2
1Y3
1Y4
1
47
46
44
43
2
3
5
6
2OE
2A1
2A2
2A3
2A4
2Y1
2Y2
2Y3
2Y4
48
41
40
38
37
8
9
11
12
3OE
3A1
3A2
3A3
3A4
3Y1
3Y2
3Y3
3Y4
25
36
35
33
32
13
14
16
17
4OE
4A1
4A2
4A3
4A4
4Y1
4Y2
4Y3
4Y4
24
30
29
27
26
19
20
22
23
Pin numbers shown are for the DGG, DGV, DL, and WD packages.
SN54LVT162244A, SN74LVT162244A
3.3-V ABT 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS718C JUNE 2000 REVISED OCTOBER 2005
FUNCTION TABLE
(EACH 4-BIT
BUFFER/DRIVER)
INPUTS
OUTPUT
Y
OE
A
L
H
H
L
L
L
H
X
Z
LOGIC DIAGRAM (POSITIVE LOGIC)
3
www.ti.com
Absolute Maximum Ratings
(1)
Recommended Operating Conditions
(1)
SN54LVT162244A, SN74LVT162244A
3.3-V ABT 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS718C JUNE 2000 REVISED OCTOBER 2005
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
V
CC
Supply voltage range
0.5
4.6
V
V
I
Input voltage range
(2)
0.5
7
V
V
O
Voltage range applied to any output in the high-impedance or power-off state
(2)
0.5
7
V
V
O
Voltage range applied to any output in the high state
(2)
0.5
V
CC
+ 0.5
V
I
O
Current into any output in the low state
30
mA
I
O
Current into any output in the high state
(3)
30
mA
I
IK
Input clamp current
V
I
< 0
50
mA
I
OK
Output clamp current
V
O
< 0
50
mA
DGG package
70
DGV package
58
JA
Package thermal impedance
(4)
DL package
63
C/W
GQL/ZQL package
42
GRD/ZRD package
36
T
stg
Storage temperature range
65
150
C
(1)
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)
The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
(3)
This current flows only when the output is in the high state and V
O
> V
CC
.
(4)
The package thermal impedance is calculated in accordance with JESD 51-7.
SN54LVT162244A
(2)
SN74LVT162244A
UNIT
MIN
MAX
MIN
MAX
V
CC
Supply voltage
2.7
3.6
2.7
3.6
V
V
IH
High-level input voltage
2
2
V
V
IL
Low-level input voltage
0.8
0.8
V
V
I
Input voltage
5.5
5.5
V
I
OH
High-level output current
12
12
mA
I
OL
Low-level output current
12
12
mA
t/
v
Input transition rise or fall rate
Outputs enabled
10
10
ns/V
t/
V
CC
Power-up ramp rate
200
200
s/V
T
A
Operating free-air temperature
55
125
40
85
C
(1)
All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
(2)
Product preview
4
www.ti.com
Electrical Characteristics
Switching Characteristics
SN54LVT162244A, SN74LVT162244A
3.3-V ABT 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS718C JUNE 2000 REVISED OCTOBER 2005
over recommended operating free-air temperature range (unless otherwise noted)
SN54LVT162244A
(1)
SN74LVT162244A
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
(2)
MAX
MIN
TYP
(2)
MAX
V
IK
V
CC
= 2.7 V,
I
I
= 18 mA
1.2
1.2
V
V
OH
V
CC
= 3 V,
I
OH
= 12 mA
2
V
V
OL
V
CC
= 3 V,
I
OL
= 12 mA
0.8
0.8
V
V
CC
= 0 or 3.6 V,
V
I
= 5.5 V
10
10
Control inputs
V
CC
= 3.6 V,
V
I
= V
CC
or GND
1
1
I
I
A
V
I
= V
CC
1
1
Data inputs
V
CC
= 3.6 V
V
I
= 0
5
5
I
off
V
CC
= 0,
V
I
or V
O
= 0 to 4.5 V
100
A
I
OZH
V
CC
= 3.6 V,
V
O
= 3 V
5
5
A
I
OZL
V
CC
= 3.6 V,
V
O
= 0.5 V
5
5
A
V
CC
= 0 to 1.5 V, V
O
= 0.5 V to 3 V,
I
OZPU
100
(3)
100
A
OE = don't care
V
CC
= 1.5 V to 0, V
O
= 0.5 V to 3 V,
I
OZPD
100
(3)
100
A
OE = don't care
Outputs high
0.19
0.19
V
CC
= 3.6 V,
I
CC
I
O
= 0,
Outputs low
5
5
mA
V
I
= V
CC
or GND
Outputs disabled
0.19
0.19
V
CC
= 3 V to 3.6 V, One input at V
CC
0.6 V,
I
CC
(4)
0.2
0.2
mA
Other inputs at V
CC
or GND
C
i
V
I
= 3 V or 0
4
4
pF
C
o
V
O
= 3 V or 0
9
9
pF
(1)
Product preview
(2)
All typical values are at V
CC
= 3.3 V, T
A
= 25
C.
(3)
On products compliant to MIL-PRF-38535, this parameter is not production tested.
(4)
This is the increase in supply current for each input that is at the specified TTL voltage level, rather than V
CC
or GND.
over recommended operating free-air temperature range, C
L
= 50 pF (unless otherwise noted) (see
Figure 1
)
SN54LVT162244A
(1)
SN74LVT162244A
FROM
TO
V
CC
= 3.3 V
V
CC
= 3.3 V
PARAMETER
V
CC
= 2.7 V
V
CC
= 2.7 V
UNIT
(INPUT)
(OUTPUT)
0.3 V
0.3 V
MIN
MAX
MIN
MAX
MIN TYP
(2)
MAX
MIN
MAX
t
PLH
1.1
4.6
5.1
1.4
3.4
4
4.8
A
Y
ns
t
PHL
1.1
3.9
4.5
1.2
2.9
3.6
4.1
t
PZH
1.1
5.4
6.7
1.2
3.9
5.1
6.5
OE
Y
ns
t
PZL
1.3
4.9
6.1
1.4
3.8
4.5
5.8
t
PHZ
1.6
5.9
6.5
2.2
4.4
5
5.4
OE
Y
ns
t
PLZ
1
5.9
5.8
2
4.2
5
5.4
t
sk(o)
0.5
ns
(1)
Product preview
(2)
All typical values are at V
CC
= 3.3 V, T
A
= 25
C.
5
PDF 
ZIP