Texas Instruments SN74ALVTH162827DL, SN74ALVTH162827GR, SN74ALVTH162827LR, SN74ALVTH162827VR Datasheet
SN54ALVTH162827, SN74ALVTH162827
2.5-V/3.3-V 20-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES079E – JULY 1996 – REVISED DECEMBER 1998
D
State-of-the-Art Advanced BiCMOS
Technology (ABT)
Widebus
Design for
2.5-V and 3.3-V Operation and Low Static
Power Dissipation
D
Support Mixed-Mode Signal Operation (5-V
Input and Output Voltages With 2.3-V to
3.6-V V
D
Typical V
<0.8 V at V
D
Power Off Disables Outputs, Permitting
)
CC
(Output Ground Bounce)
OLP
= 3.3 V, TA = 25°C
CC
Live Insertion
D
High-Impedance State During Power Up
and Power Down Prevents Driver Conflict
D
Uses Bus Hold on Data Inputs in Place of
External Pullup/Pulldown Resistors to
Prevent the Bus From Floating
D
Output Ports Have Equivalent 30-Ω Series
Resistors, So No External Resistors Are
Required
D
Auto3-State Eliminates Bus Current
Loading When Output Exceeds V
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; and Exceeds 1000 V
Using Charged-Device Model, Robotic
Method
D
Flow-Through Architecture Facilitates
Printed Circuit Board Layout
D
Distributed VCC and GND Pin Configuration
Minimizes High-Speed Switching Noise
D
Package Options Include Plastic 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 order entry:
The DGG package is abbreviated to G, and
the DGV package is abbreviated to V.
+ 0.5 V
CC
SN54ALVTH162827. . . WD PACKAGE
SN74ALVTH162827. . . DGG, DGV, OR DL PACKAGE
1OE1
1Y1
1Y2
GND
1Y3
1Y4
V
CC
1Y5
1Y6
1Y7
GND
1Y8
1Y9
1Y10
2Y1
2Y2
2Y3
GND
2Y4
2Y5
2Y6
V
CC
2Y7
2Y8
GND
2Y9
2Y10
2OE1
(TOP VIEW)
1
56
2
55
3
54
4
53
5
52
6
51
7
50
8
49
9
48
10
47
11
46
12
45
13
44
14
43
15
42
16
41
17
40
18
39
19
38
20
37
21
36
22
35
23
34
24
33
25
32
26
31
27
30
28
29
1OE2
1A1
1A2
GND
1A3
1A4
V
CC
1A5
1A6
1A7
GND
1A8
1A9
1A10
2A1
2A2
2A3
GND
2A4
2A5
2A6
V
CC
2A7
2A8
GND
2A9
2A10
2OE2
description
The ’AL VTH162827 devices are 20-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.
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 1998, Texas Instruments Incorporated
1
SN54ALVTH162827, SN74ALVTH162827
2.5-V/3.3-V 20-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES079E – JULY 1996 – REVISED DECEMBER 1998
description (continued)
The devices are composed of two 10-bit sections with separate output-enable signals. For either 10-bit buffer
section, the two output-enable (1OE1
Y outputs to be active. If either output-enable input is high, the outputs of that 10-bit buffer section are in the
high-impedance state.
When V
is between 0 and 1.2 V , the device is in the high-impedance state during power up or power down.
CC
However, to ensure the high-impedance state above 1.2 V, OE
the minimum value of the resistor is determined by the current-sinking capability of the driver.
All outputs are designed to sink up to 12 mA, and include equivalent 30-Ω resistors to reduce overshoot and
undershoot.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The SN54ALVTH162827 is characterized for operation over the full military temperature range of –55°C to
125°C. The SN74ALVTH162827 is characterized for operation from –40°C to 85°C.
and 1OE2, or 2OE1 and 2OE2) inputs must be low for the corresponding
should be tied to VCC through a pullup resistor;
FUNCTION TABLE
(each 10-bit section)
INPUTS
OE1 OE2 A
L L L L
L LH H
HXX Z
XHX Z
OUTPUT
Y
logic diagram (positive logic)
1
1OE1
56
1OE2
55
1A1
To Nine Other Channels To Nine Other Channels
28
2OE1
29
2OE2
2
1Y1
2A1
42
15
2Y1
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
UNIT
SN54ALVTH162827, SN74ALVTH162827
2.5-V/3.3-V 20-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES079E – JULY 1996 – REVISED DECEMBER 1998
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
: SN54ALVTH162827 96 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
(see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . .
O
†
SN74ALVTH162827 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current in the high state, I
: SN54ALVTH162827 –48 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
SN74ALVTH162827 –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 81°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JA
DGV package 86°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DL package 74°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)
SN54ALVTH162827 SN74ALVTH162827
MIN TYP MAX MIN TYP MAX
V
CC
V
IH
V
IL
V
I
I
OH
I
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 V
High-level output current –6 –8 mA
Low-level output current 8 12 mA
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.
CC
5.5 0 V
CC
5.5 V
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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