SN74LV244ATDBRG4 [TI]

LV/LV-A/LVX/H SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, SSOP-20;
SN74LV244ATDBRG4
型号: SN74LV244ATDBRG4
厂家: TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
描述:

LV/LV-A/LVX/H SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, SSOP-20

驱动 光电二极管 输出元件 逻辑集成电路
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中文:  中文翻译
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SN74LV244AT  
OCTAL BUFFER/DRIVER  
WITH 3-STATE OUTPUTS  
www.ti.com  
SCES572CJUNE 2004REVISED AUGUST 2005  
FEATURES  
Inputs Are TTL-Voltage Compatible  
4.5-V to 5.5-V VCC Operation  
Typical tpd = 5.4 ns at 5 V  
Ioff Supports Partial-Power-Down Mode  
Operation  
Latch-Up Performance Exceeds 250 mA Per  
JESD 17  
Typical VOLP (Output Ground Bounce)  
<0.8 V at VCC = 5 V, TA = 25°C  
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
Typical VOHV (Output VOH Undershoot)  
>2.3 V at VCC = 5 V, TA = 25°C  
Supports Mixed-Mode Voltage Operation on  
All Ports  
– 1000-V Charged-Device Model (C101)  
RGY PACKAGE  
(TOP VIEW)  
DB, DGV, DW, NS, OR PW PACKAGE  
(TOP VIEW)  
1OE  
1A1  
2Y4  
1A2  
2Y3  
1A3  
2Y2  
1A4  
2Y1  
GND  
V
CC  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
2OE  
1Y1  
2A4  
1
20  
19  
18  
17  
16  
15  
14  
13  
12  
2
3
4
5
6
7
8
9
1A1  
2Y4  
1A2  
2Y3  
1A3  
2Y2  
1A4  
2Y1  
2OE  
1Y1  
2A4  
1Y2  
2A3  
1Y3  
2A2  
1Y4  
16 1Y2  
15 2A3  
14  
13  
12  
11  
1Y3  
2A2  
1Y4  
2A1  
10  
11  
DESCRIPTION/ORDERING INFORMATION  
This octal buffer/driver is designed specifically to improve both the performance and density of 3-state  
memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.  
The SN74LV244AT is organized as two 4-bit buffers/line drivers with separate output-enable (OE) inputs. When  
OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the  
high-impedance state.  
ORDERING INFORMATION  
TA  
PACKAGE(1)  
ORDERABLE PART NUMBER  
SN74LV244ATRGYR  
SN74LV244ATDW  
TOP-SIDE MARKING  
VV244  
QFN – RGY  
SOIC – DW  
Reel of 1000  
Tube of 25  
LV244AT  
Reel of 2000  
Reel of 2000  
Reel of 2000  
Tube of 70  
SN74LV244ATDWR  
SN74LV244ATNSR  
SN74LV244ATDBR  
SN74LV244ATPW  
SOP – NS  
74LV244AT  
LV244AT  
–40°C to 85°C  
SSOP – DB  
TSSOP – PW  
TVSOP – DGV  
Reel of 2000  
Reel of 250  
Reel of 2000  
SN74LV244ATPWR  
SN74LV244ATPWT  
SN74LV244ATDGVR  
LV244AT  
LV244AT  
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at  
www.ti.com/sc/package.  
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2004–2005, 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.  
SN74LV244AT  
OCTAL BUFFER/DRIVER  
WITH 3-STATE OUTPUTS  
www.ti.com  
SCES572CJUNE 2004REVISED AUGUST 2005  
DESCRIPTION/ORDERING INFORMATION (CONTINUED)  
To ensure the high-impedance state during power up or power down, OE shall be tied to VCC through a pullup  
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.  
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.  
FUNCTION TABLE  
(EACH 4-BIT BUFFER/DRIVER)  
INPUTS  
OUTPUT  
Y
OE  
L
A
H
L
H
L
L
H
X
Z
LOGIC DIAGRAM (POSITIVE LOGIC)  
1
2
19  
1OE  
1A1  
2OE  
18  
16  
14  
12  
11  
13  
15  
17  
9
7
5
3
1Y1  
1Y2  
1Y3  
1Y4  
2A1  
2A2  
2A3  
2A4  
2Y1  
2Y2  
2Y3  
2Y4  
4
6
8
1A2  
1A3  
1A4  
2
SN74LV244AT  
OCTAL BUFFER/DRIVER  
WITH 3-STATE OUTPUTS  
www.ti.com  
SCES572CJUNE 2004REVISED AUGUST 2005  
Absolute Maximum Ratings(1)  
over operating free-air temperature range (unless otherwise noted)  
MIN  
–0.5  
–0.5  
–0.5  
MAX UNIT  
VCC  
VI  
Supply voltage range  
Input voltage range(2)  
Voltage range applied to any output in the high-impedance or power-off state(2)  
Output voltage range applied in the high or low state(2)(3)  
7
7
7
V
V
VO  
VO  
IIK  
V
–0.5 VCC + 0.5  
V
Input clamp current  
VI < 0  
–20  
–50  
±35  
±70  
70  
mA  
mA  
mA  
mA  
IOK  
IO  
Output clamp current  
VO < 0  
Continuous output current  
Continuous current through VCC or GND  
VO = 0 to VCC  
DB package(4)  
DGV package(4)  
DW package(4)  
NS package(4)  
PW package(4)  
RGY package(5)  
92  
58  
θJA  
Package thermal impedance  
Storage temperature range  
°C/W  
°C  
60  
83  
37  
Tstg  
–65  
150  
(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 current ratings are observed.  
(3) This value is limited to 5.5 V maximum.  
(4) The package thermal impedance is calculated in accordance with JESD 51-7  
(5) The package thermal impedance is calculated in accordance with JESD 51-5.  
Recommended Operating Conditions(1)  
MIN  
4.5  
2
MAX UNIT  
VCC  
VIH  
VIL  
VI  
Supply voltage  
5.5  
V
V
V
V
High-level input voltage  
Low-level input voltage  
Input voltage  
VCC = 4.5 V to 5.5 V  
VCC = 4.5 V to 5.5 V  
0.8  
5.5  
VCC  
5.5  
–16  
16  
0
0
0
High or low state  
3-state  
VO  
Output voltage  
V
IOH  
IOL  
High-level output current  
VCC = 4.5 V to 5.5 V  
VCC = 4.5 V to 5.5 V  
VCC = 4.5 V to 5.5 V  
mA  
mA  
ns/V  
°C  
Low-level output current  
t/v  
TA  
Input transition rise or fall rate  
Operating free-air temperature  
20  
–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
SN74LV244AT  
OCTAL BUFFER/DRIVER  
WITH 3-STATE OUTPUTS  
www.ti.com  
SCES572CJUNE 2004REVISED AUGUST 2005  
Electrical Characteristics  
over recommended operating free-air temperature range (unless otherwise noted)  
TA = –40°C  
to 85°C  
TA = 25°C  
TYP MAX  
PARAMETER  
TEST CONDITIONS  
VCC  
UNIT  
MIN  
4.4  
MIN MAX  
IOH = –50 µA  
IOH = –16 mA  
IOL = 50 µA  
IOL = 16 mA  
4.5 V  
4.5 V  
4.5 V  
4.5 V  
0 to 5.5 V  
5.5 V  
5.5 V  
5.5 V  
0
4.5  
4.4  
3.8  
0.1  
0.55  
±1  
VOH  
V
V
3.8  
0
0.1  
0.55  
±0.1  
±0.25  
2
VOL  
II  
VI = 5.5 V or GND  
µA  
µA  
µA  
mA  
µA  
pF  
IOZ  
VO = VCC or GND  
±2.5  
20  
ICC  
VI = VCC or GND, IO = 0  
One input at 3.4 V, Other inputs at VCC or GND  
VI or VO = 0 to 5.5 V  
(1)  
ICC  
1.35  
0.5  
1.5  
5
Ioff  
Ci  
VI = VCC or GND  
4.5  
(1) This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC  
.
Switching Characteristics  
over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)  
TA = 25°C  
TYP MAX  
FROM  
(INPUT)  
TO  
(OUTPUT)  
LOAD  
CAPACITANCE  
PARAMETER  
MIN MAX UNIT  
MIN  
2.6  
2.4  
2.2  
2.7  
2.2  
2.5  
4
tPLH  
tPHL  
tPZH  
tPZL  
tPHZ  
tPLZ  
tPLH  
tPHL  
tPZH  
tPZL  
tPHZ  
tPLZ  
tsk(o)  
5/4  
5.4  
7.4  
7.4  
1
1
1
1
1
1
1
1
1
1
1
1
8.5  
8.5  
12  
12  
8
A or B  
OE  
B or A  
A or B  
A or B  
B or A  
A or B  
A or B  
CL = 15 pF  
CL = 15 pF  
CL = 15 pF  
CL = 50 pF  
CL = 50 pF  
ns  
ns  
ns  
ns  
ns  
7.7 10.4  
7.7 10.4  
3.9  
3.9  
5.9  
5.9  
7.7  
7.7  
8.9  
8.9  
OE  
8
9.5  
9.5  
13  
13  
13  
13  
1
A or B  
OE  
4.7  
3.9  
4.9  
3.3  
3.2  
8.2 11.4  
8.2 11.4  
8.8 11.4  
8.8 11.4  
1
OE  
CL = 50 pF  
CL = 50 pF  
ns  
ns  
Noise Characteristics(1)  
VCC = 5 V, CL = 50 pF  
TA = 25°C  
PARAMETER  
Quiet output, maximum dynamic VOL  
UNIT  
MIN TYP  
MAX  
VOL(P)  
VOL(V)  
VOH(V)  
VIH(D)  
VIL(D)  
0.8  
1
V
V
V
V
V
Quiet output, minimum dynamic VOL  
Quiet output, minimum dynamic VOH  
High-level dynamic input voltage  
Low-level dynamic input voltage  
–0.8  
–1  
4
2
0.8  
(1) Characteristics are for surface-mount packages only.  
4
SN74LV244AT  
OCTAL BUFFER/DRIVER  
WITH 3-STATE OUTPUTS  
www.ti.com  
SCES572CJUNE 2004REVISED AUGUST 2005  
Operating Characteristics  
VCC = 5 V, TA = 25°C  
PARAMETER  
Power dissipation capacitance  
TEST CONDITIONS  
CL = 50 pF, f = 10 MHz  
TYP  
UNIT  
Cpd  
Outputs enabled  
8
pF  
5
SN74LV244AT  
OCTAL BUFFER/DRIVER  
WITH 3-STATE OUTPUTS  
www.ti.com  
SCES572CJUNE 2004REVISED AUGUST 2005  
PARAMETER MEASUREMENT INFORMATION  
V
CC  
S1  
Open  
GND  
R
L
= 1 kΩ  
TEST  
/t  
S1  
From Output  
Under Test  
Test  
Point  
From Output  
Under Test  
t
t
Open  
PLH PHL  
C
L
C
L
t
/t  
V
CC  
PLZ PZL  
(see Note A)  
(see Note A)  
/t  
GND  
PHZ PZH  
Open Drain  
V
CC  
LOAD CIRCUIT FOR  
LOAD CIRCUIT FOR  
TOTEM-POLE OUTPUTS  
3-STATE AND OPEN-DRAIN OUTPUTS  
3 V  
0 V  
1.5 V  
Timing Input  
t
w
t
h
3 V  
t
su  
3 V  
0 V  
1.5 V  
1.5 V  
Input  
Input  
1.5 V  
1.5 V  
Data Input  
0 V  
VOLTAGE WAVEFORMS  
PULSE DURATION  
VOLTAGE WAVEFORMS  
SETUP AND HOLD TIMES  
3 V  
0 V  
3 V  
Output  
Control  
1.5 V  
1.5 V  
1.5 V  
1.5 V  
0 V  
t
t
PZL  
PLZ  
t
t
t
PHL  
PLH  
Output  
Waveform 1  
V  
V
CC  
OH  
In-Phase  
Output  
50% V  
50% V  
50% V  
CC  
50% V  
CC  
CC  
V
S1 at V  
CC  
V
V
+ 0.3 V  
OL  
V
OL  
OL  
(see Note B)  
t
t
t
PZH  
PHZ  
PHL  
PLH  
Output  
Waveform 2  
S1 at GND  
V
OH  
V
OH  
Out-of-Phase  
Output  
− 0.3 V  
OH  
50% V  
50% V  
CC  
CC  
CC  
V
0 V  
(see Note B)  
OL  
VOLTAGE WAVEFORMS  
PROPAGATION DELAY TIMES  
INVERTING AND NONINVERTING OUTPUTS  
VOLTAGE WAVEFORMS  
ENABLE AND DISABLE TIMES  
LOW- AND HIGH-LEVEL ENABLING  
NOTES: A. C includes probe and jig capacitance.  
L
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 1 MHz, Z = 50 , t 3 ns, t 3 ns.  
O
r
f
D. The outputs are measured one at a time, with one input transition per measurement.  
E.  
F.  
G.  
t
t
t
and t  
and t  
and t  
are the same as t  
.
dis  
.
PLZ  
PZL  
PHL  
PHZ  
are the same as t  
PZH  
en  
are the same as t .  
PLH pd  
H. All parameters and waveforms are not applicable to all devices.  
Figure 1. Load Circuits and Voltage Waveforms  
6
PACKAGE OPTION ADDENDUM  
www.ti.com  
10-Jun-2014  
PACKAGING INFORMATION  
Orderable Device  
SN74LV244ATDWR  
SN74LV244ATNSR  
SN74LV244ATPW  
Status Package Type Package Pins Package  
Eco Plan  
Lead/Ball Finish  
MSL Peak Temp  
Op Temp (°C)  
-40 to 85  
-40 to 85  
-40 to 85  
-40 to 85  
-40 to 85  
-40 to 85  
-40 to 85  
Device Marking  
Samples  
Drawing  
Qty  
(1)  
(2)  
(6)  
(3)  
(4/5)  
ACTIVE  
SOIC  
SO  
DW  
20  
20  
20  
20  
20  
20  
20  
2000  
Green (RoHS  
& no Sb/Br)  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
CU NIPDAU  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-1-260C-UNLIM  
Level-2-260C-1 YEAR  
Level-2-260C-1 YEAR  
LV244AT  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
NS  
PW  
2000  
70  
Green (RoHS  
& no Sb/Br)  
74LV244AT  
LV244AT  
LV244AT  
LV244AT  
VV244  
TSSOP  
TSSOP  
TSSOP  
VQFN  
VQFN  
Green (RoHS  
& no Sb/Br)  
SN74LV244ATPWR  
SN74LV244ATPWT  
SN74LV244ATRGYR  
SN74LV244ATRGYRG4  
PW  
2000  
250  
Green (RoHS  
& no Sb/Br)  
PW  
Green (RoHS  
& no Sb/Br)  
RGY  
RGY  
3000  
3000  
Green (RoHS  
& no Sb/Br)  
Green (RoHS  
& no Sb/Br)  
VV244  
(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.  
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.  
Addendum-Page 1  
PACKAGE OPTION ADDENDUM  
www.ti.com  
10-Jun-2014  
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation  
of the previous line and the two combined represent the entire Device Marking for that device.  
(6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish  
value exceeds the maximum column width.  
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 2  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
14-Jul-2012  
TAPE AND REEL INFORMATION  
*All dimensions are nominal  
Device  
Package Package Pins  
Type Drawing  
SPQ  
Reel  
Reel  
A0  
B0  
K0  
P1  
W
Pin1  
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant  
(mm) W1 (mm)  
SN74LV244ATDWR  
SN74LV244ATNSR  
SN74LV244ATPWR  
SN74LV244ATPWT  
SN74LV244ATRGYR  
SOIC  
SO  
DW  
NS  
20  
20  
20  
20  
20  
2000  
2000  
2000  
250  
330.0  
330.0  
330.0  
330.0  
330.0  
24.4  
24.4  
16.4  
16.4  
12.4  
10.8  
8.2  
13.0  
13.0  
7.1  
2.7  
2.5  
1.6  
1.6  
1.6  
12.0  
12.0  
8.0  
24.0  
24.0  
16.0  
16.0  
12.0  
Q1  
Q1  
Q1  
Q1  
Q1  
TSSOP  
TSSOP  
VQFN  
PW  
PW  
RGY  
6.95  
6.95  
3.8  
7.1  
8.0  
3000  
4.8  
8.0  
Pack Materials-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
14-Jul-2012  
*All dimensions are nominal  
Device  
Package Type Package Drawing Pins  
SPQ  
Length (mm) Width (mm) Height (mm)  
SN74LV244ATDWR  
SN74LV244ATNSR  
SN74LV244ATPWR  
SN74LV244ATPWT  
SN74LV244ATRGYR  
SOIC  
SO  
DW  
NS  
20  
20  
20  
20  
20  
2000  
2000  
2000  
250  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
367.0  
45.0  
45.0  
38.0  
38.0  
35.0  
TSSOP  
TSSOP  
VQFN  
PW  
PW  
RGY  
3000  
Pack Materials-Page 2  
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supplied at the time of order acknowledgment.  
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