SN74LVC2G157BDCT [TI]
LVC/LCX/Z SERIES, 2 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO8;
| 型号： | SN74LVC2G157BDCT |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | LVC/LCX/Z SERIES, 2 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO8 复用器 |
| 文件： | 总12页 (文件大小：393K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN74LVC2G157
SINGLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER
www.ti.com
SCES207K–APRIL 1999–REVISED JANUARY 2007
FEATURES
•
Available in the Texas Instruments
NanoFree™ Package
•
•
•
•
Typical VOHV (Output VOH Undershoot)
>2 V at VCC = 3.3 V, TA = 25°C
•
•
•
•
•
•
Supports 5-V VCC Operation
Inputs Accept Voltages to 5.5 V
Max tpd of 6 ns at 3.3 V
Ioff Supports Partial-Power-Down Mode
Operation
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
Low Power Consumption, 10-µA Max ICC
±24-mA Output Drive at 3.3 V
ESD Protection Exceeds JESD 22
–
–
2000-V Human-Body Model (A114-A)
1000-V Charged-Device Model (C101)
Typical VOLP (Output Ground Bounce)
<0.8 V at VCC = 3.3 V, TA = 25°C
DCT PACKAGE
(TOP VIEW)
DCU PACKAGE
(TOP VIEW)
YZP PACKAGE
(BOTTOM VIEW)
4 5
Y
A/B
G
GND
Y
B
A
B
Y
V
CC
1
2
3
4
8
7
6
5
3 6
1
2
8
7
A
B
V
CC
G
A/B
Y
2
7
A
1 8
V
CC
G
GND
3
4
6
5
Y
A/B
Y
GND
See mechanical drawings for dimensions.
DESCRIPTION/ORDERING INFORMATION
This single 2-line to 1-line data selector/multiplexer is designed for 1.65-V to 5.5-V VCC operation.
The SN74LVC2G157 features a common strobe (G) input. When the strobe is high, Y is low and Y is high.
When the strobe is low, a single bit is selected from one of two sources and is routed to the outputs. The device
provides true and complementary data.
NanoFree™ package technology is a major breakthrough in IC packaging concepts, using the die as the
package.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER TOP-SIDE MARKING(2)
NanoFree™ – WCSP (DSBGA)
0.23-mm Large Bump – YZP (Pb-free)
SSOP – DCT
Reel of 3000
SN74LVC2G157YZPR
_ _ _C3_
C57_ _ _
Reel of 3000
Reel of 3000
Reel of 250
SN74LVC2G157DCTR
SN74LVC2G157DCUR
SN74LVC2G157DCUT
–40°C to 85°C
VSSOP – DCU
C57_
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
(2) DCT: The actual top-side marking has three additional characters that designate the year, month, and assembly/test site.
DCU: The actual top-side marking has one additional character that designates the assembly/test site.
YZP: The actual top-side marking has three preceding characters to denote year, month, and sequence code, and one following
character to designate the assembly/test site. Pin 1 identifier indicates solder-bump composition (1 = SnPb, • = Pb-free).
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.
NanoFree is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 1999–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
SN74LVC2G157
SINGLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER
www.ti.com
SCES207K–APRIL 1999–REVISED JANUARY 2007
FUNCTION TABLE
INPUTS
OUTPUTS
G
H
L
A/B
X
A
X
L
B
X
X
X
L
Y
L
Y
H
H
L
L
L
L
L
H
X
X
H
L
L
H
H
L
L
H
H
H
LOGIC DIAGRAM (POSITIVE LOGIC)
1
2
A
B
5
3
Y
Y
7
6
G
A/B
Absolute Maximum Ratings(1)
over operating free-air temperature range (unless otherwise noted)
MIN
MAX UNIT
VCC Supply voltage range
–0.5
–0.5
–0.5
6.5
6.5
6.5
V
V
VI
Input voltage range(2)
VO
VO
IIK
Voltage range applied to any output in the high-impedance or power-off state(2)
Voltage range applied to any output in the high or low state(2)(3)
V
–0.5 VCC + 0.5
V
Input clamp current
VI < 0
–50
–50
mA
mA
IOK
IO
Output clamp current
VO < 0
Continuous output current
Continuous current through VCC or GND
±50 mA
±100 mA
220
DCT package
DCU package
YZP package
θJA
Package thermal impedance(4)
227 °C/W
102
Tstg
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 negative-voltage and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
(3) The value of VCC is provided in the recommended operating conditions table.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.
2
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SN74LVC2G157
SINGLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER
www.ti.com
SCES207K–APRIL 1999–REVISED JANUARY 2007
Recommended Operating Conditions(1)
MIN
1.65
MAX UNIT
Operating
5.5
V
VCC
Supply voltage
Data retention only
VCC = 1.65 V to 1.95 V
VCC = 2.3 V to 2.7 V
VCC = 3 V to 3.6 V
VCC = 4.5 V to 5.5 V
VCC = 1.65 V to 1.95 V
VCC = 2.3 V to 2.7 V
VCC = 3 V to 3.6 V
VCC = 4.5 V to 5.5 V
1.5
0.65 × VCC
1.7
VIH
High-level input voltage
V
2
0.7 × VCC
0.35 × VCC
0.7
VIL
Low-level input voltage
V
0.8
0.3 × VCC
5.5
VCC
–4
VI
Input voltage
0
0
V
V
VO
Output voltage
VCC = 1.65 V
VCC = 2.3 V
–8
IOH
High-level output current
Low-level output current
–16
–24
–32
4
mA
mA
VCC = 3 V
VCC = 4.5 V
VCC = 1.65 V
VCC = 2.3 V
8
IOL
16
VCC = 3 V
24
VCC = 4.5 V
32
VCC = 1.8 V ± 0.15 V, 2.5 V ± 0.2 V
VCC = 3.3 V ± 0.3 V
VCC = 5 V ± 0.5 V
20
∆t/∆v
Input transition rise or fall rate
Operating free-air temperature
10
ns/V
°C
5
TA
–40
85
(1) All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
3
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SN74LVC2G157
SINGLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER
www.ti.com
SCES207K–APRIL 1999–REVISED JANUARY 2007
Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
1.65 V to 5.5 V
1.65 V
MIN TYP(1)
VCC – 0.1
MAX UNIT
IOH = –100 µA
IOH = –4 mA
IOH = –8 mA
IOH = –16 mA
IOH = –24 mA
IOH = –32 mA
IOL = 100 µA
IOL = 4 mA
1.2
1.9
2.4
2.3
3.8
2.3 V
VOH
V
3 V
4.5 V
1.65 V to 5.5 V
1.65 V
0.1
0.45
IOL = 8 mA
2.3 V
0.3
V
VOL
IOL = 16 mA
IOL = 24 mA
IOL = 32 mA
0.4
3 V
0.55
0.55
4.5 V
A, B, or
control inputs
II
VI = 5.5 V or GND
0 to 5.5 V
±5
µA
Ioff
VI or VO = 5.5 V
0
±10
10
µA
µA
µA
pF
ICC
VI = 5.5 V or GND,
IO = 0
1.65 V to 5.5 V
3 V to 5.5 V
3.3 V
∆ICC
One input at VCC – 0.6 V, Other inputs at VCC or GND
VI = VCC or GND
500
Ci
5
(1) All typical values are at VCC = 3.3 V, TA = 25°C.
Switching Characteristics
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
VCC = 1.8 V
± 0.15 V
VCC = 2.5 V
± 0.2 V
VCC = 3.3 V
± 0.3 V
VCC = 5 V
± 0.5 V
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
UNIT
MIN
4.4
4.9
4.2
MAX
MIN
2.1
2.5
2
MAX
MIN MAX
MIN
1.4
1.6
1.3
MAX
A or B
A/B
G
14
16
14
8
9
8
2
2.1
1.6
6
6
6
4
4
4
tpd
Y or Y
ns
Operating Characteristics
TA = 25°C
VCC = 1.8 V
TYP
VCC = 2.5 V
TYP
VCC = 3.3 V
TYP
VCC = 5 V
TYP
PARAMETER
TEST CONDITIONS
UNIT
Cpd
Power dissipation capacitance
f = 10 MHz
35
35
37
40
pF
4
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SN74LVC2G157
SINGLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER
www.ti.com
SCES207K–APRIL 1999–REVISED JANUARY 2007
PARAMETER MEASUREMENT INFORMATION
VLOAD
Open
GND
S1
RL
From Output
Under Test
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
VLOAD
GND
CL
(see Note A)
RL
LOAD CIRCUIT
INPUTS
VCC
VM
VLOAD
CL
RL
V
D
VI
tr/tf
VCC
VCC
3 V
VCC
1.8 V ± 0.15 V
2.5 V ± 0.2 V
3.3 V ± 0.3 V
5 V ± 0.5 V
£2 ns
£2 ns
VCC/2
VCC/2
1.5 V
VCC/2
2 × VCC
2 × VCC
6 V
30 pF
30 pF
50 pF
50 pF
1 kW
0.15 V
0.15 V
0.3 V
500 W
500 W
500 W
£2.5 ns
£2.5 ns
2 × VCC
0.3 V
VI
Timing Input
Data Input
VM
0 V
tW
tsu
th
VI
VI
Input
VM
VM
VM
VM
0 V
0 V
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VI
VI
Output
Control
VM
VM
Input
VM
VM
0 V
0 V
tPZL
tPLZ
tPLH
tPHL
VM
Output
Waveform 1
S1 at VLOAD
VOH
VOL
VLOAD/2
VOL
VM
VM
Output
Output
VOL + V
D
(see Note B)
tPHL
tPLH
tPZH
tPHZ
VOH
VOL
Output
Waveform 2
S1 at GND
VOH
VOH – V
D
VM
VM
VM
»0 V
(see Note B)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR £ 10 MHz, ZO = 50 W.
D. The outputs are measured one at a time, with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
H. All parameters and waveforms are not applicable to all devices.
Figure 1. Load Circuit and Voltage Waveforms
5
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PACKAGE OPTION ADDENDUM
www.ti.com
6-Dec-2007
PACKAGING INFORMATION
Orderable Device
74LVC2G157DCTRE4
74LVC2G157DCURE4
74LVC2G157DCURG4
74LVC2G157DCUTE4
74LVC2G157DCUTG4
SN74LVC2G157DCTR
SN74LVC2G157DCTRG4
SN74LVC2G157DCUR
SN74LVC2G157DCUT
SN74LVC2G157YZPR
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SM8
DCT
8
8
8
8
8
8
8
8
8
8
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
US8
US8
DCU
DCU
DCU
DCU
DCT
DCT
DCU
DCU
YZP
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
US8
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
US8
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SM8
SM8
US8
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
3000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
US8
250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
WCSP
3000 Green (RoHS &
no Sb/Br)
SNAGCU
Level-1-260C-UNLIM
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
22-Oct-2007
TAPE AND REEL BOX INFORMATION
Device
Package Pins
Site
Reel
Reel
A0 (mm)
B0 (mm)
K0 (mm)
P1
W
Pin1
Diameter Width
(mm) (mm) Quadrant
(mm)
180
(mm)
SN74LVC2G157DCUR
SN74LVC2G157YZPR
DCU
YZP
8
8
SITE 35
SITE 12
9
8
2.25
1.1
3.35
2.1
1.05
0.56
4
4
8
8
Q3
Q1
180
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
22-Oct-2007
Device
Package
Pins
Site
Length (mm) Width (mm) Height (mm)
SN74LVC2G157DCUR
SN74LVC2G157YZPR
DCU
YZP
8
8
SITE 35
SITE 12
202.0
220.0
201.0
220.0
28.0
0.0
Pack Materials-Page 2
MECHANICAL DATA
MPDS049B – MAY 1999 – REVISED OCTOBER 2002
DCT (R-PDSO-G8)
PLASTIC SMALL-OUTLINE PACKAGE
0,30
0,15
M
0,13
0,65
8
5
0,15 NOM
2,90
2,70
4,25
3,75
Gage Plane
PIN 1
INDEX AREA
0,25
1
4
0° – 8°
0,60
0,20
3,15
2,75
1,30 MAX
Seating Plane
0,10
0,10
0,00
4188781/C 09/02
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion
D. Falls within JEDEC MO-187 variation DA.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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相关型号：
SN74LVC2G157DCU
LVC/LCX/Z SERIES, 2 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO8, PLASTIC, TSSOP-8
TI
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