Texas Instruments SN74ALVTH16244DL, SN74ALVTH16244DLR, SN74ALVTH16244GR, SN74ALVTH16244VR Datasheet
SN54ALVTH16244, SN74ALVTH16244
2.5-V/3.3-V 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES070G – JUNE 1996 – REVISED MA Y 1999
D
Members of the Texas Instruments
Widebus
D
State-of-the-Art Advanced BiCMOS
Family
Technology (ABT) Design for 3.3-V
Operation and Low Static-Power
Dissipation
D
5-V I/O Compatible
D
High Drive Capability (–32 mA/64 mA)
D
Support Mixed-Mode Signal Operation (5-V
Input and Output Voltages With 3.3-V V
D
Support Unregulated Battery Operation
Down to 2.3 V
D
Typical V
< 0.8 V at V
D
Auto3-State Eliminates Bus Current
(Output Ground Bounce)
OLP
= 3.3 V, TA = 25°C
CC
Loading When Voltage at the Output
Exceeds V
D
I
off
and Power-Up 3-State Support Hot
CC
Insertion
D
Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
D
Latch-Up Performance Exceeds 250 mA Per
JESD 17
D
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D
Package Options Include Plastic 300-mil
Shrink Small-Outline (DL), Thin Shrink
Small-Outline (DGG), Thin Very
Small-Outline (DGV) Packages, and 380-mil
Fine-Pitch Ceramic Flat (WD) Package
NOTE: For tape and reel order entry:
The DGGR package is abbreviated to GR, and
the DGVR package is abbreviated to VR.
CC
SN54ALVTH16244.. . WD PACKAGE
SN74ALVTH16244.. . DGG, DGV, OR DL PACKAGE
)
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
(TOP VIEW)
1
48
2
47
3
46
4
45
5
44
6
43
7
42
8
41
9
40
10
39
11
38
12
37
13
36
14
35
15
34
16
33
17
32
18
31
19
30
20
29
21
28
22
27
23
26
24
25
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
The ’ALVTH16244 devices are 16-bit buffers/line drivers designed for 2.5-V or 3.3-V VCC 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.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
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 Incorporated.
UNLESS OTHERWISE NOTED this document contains 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.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1999, Texas Instruments Incorporated
1
SN54ALVTH16244, SN74ALVTH16244
2.5-V/3.3-V 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES070G – JUNE 1996 – REVISED MA Y 1999
description (continued)
When VCC is between 0 and 1.2 V , the device is in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 1.2 V, the output-enable (OE
through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of
the driver.
) input should be tied to V
CC
These devices are fully specified for hot-insertion applications using I
and power-up 3-state. The I
off
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.
The SN54ALVTH16244 is characterized for operation over the full military temperature range of –55°C to
125°C. The SN74ALVTH16244 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
(each buffer)
INPUTS
OE
L H H
L LL
HXZ
OUTPUT
A
Y
logic diagram (positive logic)
1OE
1A1
1A2
1
47
46
2
1Y1
3
1Y2
3OE
3A1
3A2
25
36
35
13
14
3Y1
3Y2
circuitry
off
1A3
1A4
2OE
2A1
2A2
2A3
2A4
44
43
48
41
40
38
37
11
12
5
1Y3
6
1Y4
8
2Y1
9
2Y2
2Y3
2Y4
3A3
3A4
4OE
4A1
4A2
4A3
4A4
33
32
24
30
29
27
26
16
17
19
20
22
23
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
UNIT
I
mA
SN54ALVTH16244, SN74ALVTH16244
2.5-V/3.3-V 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES070G – JUNE 1996 – REVISED MA Y 1999
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
Input voltage range, V
Voltage range applied to any output in
or power-off state, V
Voltage range applied to any output in the high state, V
Output current in the low state, I
–0.5 V to 4.6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CC
(see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
the high-impedance
(see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
: SN54ALVTH16244 96 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
(see Note 1) –0.5 V to VCC to 7V. . . . . . . . . . . . . .
O
†
SN74ALVTH16244 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current in the high state, I
: SN54ALVTH16244 –48 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
SN74ALVTH16244 –64 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
Output clamp current, I
Package thermal impedance, θ
(V
< 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IK
I
(V
< 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OK
O
(see Note 2): DGG package 89°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JA
DGV package 93°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DL package 94°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
†
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.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51.
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
recommended operating conditions, VCC = 2.5 V ± 0.2 V (see Note 3)
SN54ALVTH16244 SN74ALVTH16244
MIN MAX MIN MAX
V
CC
V
IH
V
IL
V
I
I
OH
OL
∆t/∆v Input transition rise or fall rate Outputs enabled 10 10 ns/V
∆t/∆V
T
A
NOTE 3: All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Supply voltage 2.3 2.7 2.3 2.7 V
High-level input voltage 1.7 1.7 V
Low-level input voltage 0.7 0.7 V
Input voltage 0 5.5 0 5.5 V
High-level output current –6 –8 mA
Low-level output current 6 8
Low-level output current; current duty cycle ≤ 50%; f ≥ 1 kHz 18 24
Power-up ramp rate 200 200 µs/V
CC
Operating free-air temperature –55 125 –40 85 °C
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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