SN74AHCT157DBRG4 [TI]

QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS; 四路2号线到1线数据选择器/多路复用器
SN74AHCT157DBRG4
型号: SN74AHCT157DBRG4
厂家: TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
描述:

QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
四路2号线到1线数据选择器/多路复用器

解复用器 逻辑集成电路 光电二极管
文件: 总17页 (文件大小:561K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
SN54AHCT157, SN74AHCT157  
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS  
SCLS347K – MAY 1996 – REVISED JULY 2003  
SN54AHCT157 . . . J OR W PACKAGE  
SN74AHCT157 . . . D, DB, DGV, N, NS, OR PW PACKAGE  
(TOP VIEW)  
Inputs Are TTL-Voltage Compatible  
Latch-Up Performance Exceeds 250 mA Per  
JESD 17  
V
G
A/B  
1A  
1B  
1Y  
2A  
2B  
2Y  
GND  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
CC  
description/ordering information  
4A  
4B  
4Y  
3A  
3B  
3Y  
These quadruple 2-line to 1-line data  
selectors/multiplexers are designed for 4.5-V to  
5.5-V V  
operation.  
CC  
The ’AHCT157 devices feature a common strobe  
(G) input. When the strobe is high, all outputs are  
low. When the strobe is low, a 4-bit word is  
selected from one of two sources and is routed to  
the four outputs. The devices provide true data.  
SN54AHCT157 . . . FK PACKAGE  
(TOP VIEW)  
3
2
1 20 19  
18  
4A  
4B  
NC  
4Y  
3A  
1B  
1Y  
NC  
2A  
2B  
4
5
6
7
8
17  
16  
15  
14  
9 10 11 12 13  
NC – No internal connection  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
PACKAGE  
T
A
PDIP – N  
SOIC – D  
Tube  
SN74AHCT157N  
SN74AHCT157N  
Tube  
SN74AHCT157D  
AHCT157  
Tape and reel  
Tape and reel  
Tape and reel  
Tube  
SN74AHCT157DR  
SN74AHCT157NSR  
SN74AHCT157DBR  
SN74AHCT157PW  
SN74AHCT157PWR  
SN74AHCT157DGVR  
SNJ54AHCT157J  
SNJ54AHCT157W  
SNJ54AHCT157K  
SOP – NS  
AHCT157  
HB157  
–40°C to 85°C  
SSOP – DB  
TSSOP – PW  
HB157  
Tape and reel  
Tape and reel  
Tube  
TVSOP – DGV  
CDIP – J  
HB157  
SNJ54AHCT157J  
SNJ54AHCT157W  
SNJ54AHCT157FK  
–55°C to 125°C  
CFP – W  
Tube  
LCCC – FK  
Tube  
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.  
Copyright 2003, 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.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
SN54AHCT157, SN74AHCT157  
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS  
SCLS347K MAY 1996 REVISED JULY 2003  
FUNCTION TABLE  
INPUTS  
OUTPUT  
Y
G
H
L
A/B  
A
X
L
B
X
X
X
L
X
L
L
L
L
L
H
X
X
H
L
L
H
H
L
H
H
logic diagram (positive logic)  
2
1A  
4
1Y  
3
1B  
5
2A  
7
9
2Y  
3Y  
6
2B  
11  
3A  
10  
3B  
14  
4A  
12  
4Y  
13  
4B  
15  
G
1
A/B  
Pin numbers shown are for the D, DB, DGV, J, N, NS, PW, and W packages.  
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
SN54AHCT157, SN74AHCT157  
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS  
SCLS347K MAY 1996 REVISED JULY 2003  
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)  
Supply voltage range, V  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V  
CC  
Input voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V  
I
Output voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to V  
+ 0.5 V  
O
CC  
Input clamp current, I (V < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA  
IK  
I
Output clamp current, I  
(V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA  
OK  
O O CC  
Continuous output current, I (V = 0 to V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 mA  
Continuous current through V  
Package thermal impedance, θ (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W  
O
O
CC  
CC  
or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA  
JA  
DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82°C/W  
DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120°C/W  
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W  
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W  
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108°C/W  
Storage temperature range, T  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C  
stg  
Stresses beyond those listed under absolute maximum ratingsmay 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 conditionsis not  
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.  
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.  
2. The package thermal impedance is calculated in accordance with JESD 51-7.  
recommended operating conditions (see Note 3)  
SN54AHCT157 SN74AHCT157  
UNIT  
MIN  
4.5  
2
MAX  
MIN  
4.5  
2
MAX  
V
V
V
V
V
Supply voltage  
5.5  
5.5  
V
V
CC  
IH  
IL  
High-level input voltage  
Low-level input voltage  
Input voltage  
0.8  
5.5  
0.8  
5.5  
V
0
0
0
0
V
I
Output voltage  
V
V
V
O
CC  
CC  
I
I
High-level output current  
Low-level output current  
Input transition rise or fall time  
Operating free-air temperature  
8  
8  
mA  
mA  
ns/V  
°C  
OH  
OL  
8
8
20  
85  
t/v  
20  
T
55  
125  
40  
A
NOTE 3: All unused inputs of the device must be held at V  
or GND to ensure proper device operation. Refer to the TI application report,  
CC  
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.  
3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
SN54AHCT157, SN74AHCT157  
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS  
SCLS347K MAY 1996 REVISED JULY 2003  
electrical characteristics over recommended operating free-air temperature range (unless  
otherwise noted)  
T
A
= 25°C  
TYP  
SN54AHCT157 SN74AHCT157  
PARAMETER  
TEST CONDITIONS  
= 50  
V
UNIT  
CC  
MIN  
4.4  
MAX  
MIN  
4.4  
MAX  
MIN  
4.4  
MAX  
I
A
4.5  
OH  
V
4.5 V  
4.5 V  
V
OH  
OL  
3.94  
3.8  
3.8  
I
= 8 mA  
OH  
OL  
I
= 50  
A
0.1  
0.36  
±0.1  
2
0.1  
0.44  
±1*  
20  
0.1  
0.44  
±1  
V
V
I
= 8 mA  
OL  
I
I
V = 5.5 V or GND  
0 V to 5.5 V  
5.5 V  
A
A
I
I
V = V  
or GND,  
I = 0  
O
20  
CC  
I
CC  
One input at 3.4 V,  
Other inputs at V  
5.5 V  
5 V  
1.35  
10  
1.5  
1.5  
10  
A
I  
CC  
or GND  
CC  
V = V or GND  
CC  
C
2
pF  
i
I
* On products compliant to MIL-PRF-38535, this parameter is not production tested at V  
This is the increase in supply current for each input at one of the specified TTL voltage levels rather than 0 V or V  
CC  
= 0 V.  
CC  
.
switching characteristics over recommended operating free-air temperature range,  
V
= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)  
CC  
T
A
= 25°C  
TYP  
SN54AHCT157 SN74AHCT157  
FROM  
(INPUT)  
TO  
(OUTPUT)  
LOAD  
CAPACITANCE  
PARAMETER  
UNIT  
ns  
MIN  
MAX  
6.4**  
6.4**  
8.1**  
8.1**  
8.6**  
8.6**  
MIN  
1**  
1**  
1**  
1**  
1**  
1**  
MAX  
7.5**  
7.5**  
9.5**  
9.5**  
10**  
MIN  
1
MAX  
7.5  
7.5  
9.5  
9.5  
10  
t
t
t
t
t
t
4.1**  
4.1**  
5.3**  
5.3**  
5.6**  
5.6**  
PLH  
PHL  
PLH  
PHL  
PLH  
PHL  
A or B  
Y
Y
Y
Y
Y
Y
C
C
C
C
C
C
= 15 pF  
= 15 pF  
= 15 pF  
= 50 pF  
= 50 pF  
= 50 pF  
L
L
L
L
L
L
1
1
ns  
A/B  
G
1
1
ns  
10**  
1
10  
t
t
t
t
t
t
5.6  
5.6  
6.8  
6.8  
7.1  
7.1  
8.7  
8.7  
1
1
1
1
1
1
10.8  
10.8  
13.2  
13.2  
13.5  
13.5  
1
1
1
1
1
1
9.8  
9.8  
12  
12  
12  
12  
PLH  
PHL  
PLH  
PLH  
PLH  
PHL  
A or B  
ns  
10.4  
10.4  
11  
ns  
A/B  
G
ns  
11  
** On products compliant to MIL-PRF-38535, this parameter is not production tested.  
noise characteristics V  
= 5 V, C = 50 pF, T = 25°C (see Note 4)  
CC  
L
A
SN74AHCT157  
PARAMETER  
UNIT  
MIN  
TYP  
0.4  
MAX  
V
V
V
V
V
Quiet output, maximum dynamic V  
0.8  
V
V
V
V
V
OL(P)  
OL(V)  
OH(V)  
IH(D)  
IL(D)  
OL  
Quiet output, minimum dynamic V  
Quiet output, minimum dynamic V  
High-level dynamic input voltage  
Low-level dynamic input voltage  
0.4  
4.8  
0.8  
OL  
OH  
2
0.8  
NOTE 4: Characteristics are for surface-mount packages only.  
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.  
4
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
SN54AHCT157, SN74AHCT157  
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS  
SCLS347K MAY 1996 REVISED JULY 2003  
operating characteristics, V  
= 5 V, T = 25°C  
A
CC  
PARAMETER  
TEST CONDITIONS  
TYP  
UNIT  
C
Power dissipation capacitance  
No load,  
f = 1 MHz  
11  
pF  
pd  
PARAMETER MEASUREMENT INFORMATION  
V
CC  
Open  
GND  
S1  
R
= 1 kΩ  
L
TEST  
S1  
From Output  
Under Test  
Test  
Point  
From Output  
Under Test  
t
t
/t  
PLH PHL  
Open  
C
C
L
t
/t  
V
CC  
L
PLZ PZL  
(see Note A)  
(see Note A)  
/t  
PHZ PZH  
GND  
Open Drain  
V
CC  
LOAD CIRCUIT FOR  
LOAD CIRCUIT FOR  
TOTEM-POLE OUTPUTS  
3-STATE AND OPEN-DRAIN OUTPUTS  
3 V  
1.5 V  
Timing Input  
0 V  
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  
0 V  
Output  
Control  
1.5 V  
1.5 V  
1.5 V  
1.5 V  
t
t
t
t
t
PZL  
PLZ  
PLH  
PHL  
Output  
Waveform 1  
V
V  
OH  
CC  
In-Phase  
Output  
50% V  
50% V  
50% V  
CC  
50% V  
CC  
CC  
V
S1 at V  
(see Note B)  
CC  
V
V
+ 0.3 V  
OL  
V
OL  
OL  
t
t
t
PHL  
PLH  
PZH  
PHZ  
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. includes probe and jig capacitance.  
C
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. All parameters and waveforms are not applicable to all devices.  
Figure 1. Load Circuit and Voltage Waveforms  
5
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
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Copyright © 2007, Texas Instruments Incorporated  
PACKAGE OPTION ADDENDUM  
www.ti.com  
4-Jun-2007  
PACKAGING INFORMATION  
Orderable Device  
Status (1)  
Package Package  
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)  
Qty  
Type  
Drawing  
SN74AHCT157D  
ACTIVE  
SOIC  
D
16  
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SN74AHCT157DBLE  
SN74AHCT157DBR  
OBSOLETE  
ACTIVE  
SSOP  
SSOP  
DB  
DB  
16  
16  
TBD  
Call TI  
Call TI  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SN74AHCT157DBRE4  
SN74AHCT157DBRG4  
SN74AHCT157DE4  
SN74AHCT157DG4  
SN74AHCT157DGVR  
SN74AHCT157DGVRE4  
SN74AHCT157DGVRG4  
SN74AHCT157DR  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
SSOP  
SSOP  
SOIC  
SOIC  
TVSOP  
TVSOP  
TVSOP  
SOIC  
SOIC  
SOIC  
PDIP  
DB  
DB  
D
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
16  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
D
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
DGV  
DGV  
DGV  
D
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SN74AHCT157DRE4  
SN74AHCT157DRG4  
SN74AHCT157N  
D
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
D
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
N
25  
Pb-Free  
(RoHS)  
CU NIPDAU N / A for Pkg Type  
SN74AHCT157NE4  
SN74AHCT157NSR  
SN74AHCT157NSRE4  
SN74AHCT157NSRG4  
SN74AHCT157PW  
PDIP  
N
25  
Pb-Free  
(RoHS)  
CU NIPDAU N / A for Pkg Type  
SO  
NS  
NS  
NS  
PW  
PW  
PW  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SO  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SO  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
TSSOP  
TSSOP  
TSSOP  
90 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SN74AHCT157PWE4  
SN74AHCT157PWG4  
90 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
90 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SN74AHCT157PWLE  
SN74AHCT157PWR  
OBSOLETE TSSOP  
PW  
PW  
16  
16  
TBD  
Call TI  
Call TI  
ACTIVE  
ACTIVE  
ACTIVE  
TSSOP  
TSSOP  
TSSOP  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SN74AHCT157PWRE4  
SN74AHCT157PWRG4  
PW  
PW  
16  
16  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
Addendum-Page 1  
PACKAGE OPTION ADDENDUM  
www.ti.com  
4-Jun-2007  
(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 2  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
4-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)  
330  
330  
330  
330  
330  
(mm)  
16  
SN74AHCT157DBR  
SN74AHCT157DGVR  
SN74AHCT157DR  
SN74AHCT157NSR  
SN74AHCT157PWR  
DB  
DGV  
D
16  
16  
16  
16  
16  
SITE 41  
SITE 41  
SITE 27  
SITE 41  
SITE 41  
8.2  
6.8  
6.5  
8.2  
7.0  
6.6  
4.0  
2.5  
1.6  
2.1  
2.5  
1.6  
12  
8
16  
16  
16  
16  
12  
Q1  
Q1  
Q1  
Q1  
Q1  
12  
16  
10.3  
10.5  
5.6  
8
NS  
16  
12  
8
PW  
12  
Pack Materials-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
4-Oct-2007  
Device  
Package  
Pins  
Site  
Length (mm) Width (mm) Height (mm)  
SN74AHCT157DBR  
SN74AHCT157DGVR  
SN74AHCT157DR  
SN74AHCT157NSR  
SN74AHCT157PWR  
DB  
DGV  
D
16  
16  
16  
16  
16  
SITE 41  
SITE 41  
SITE 27  
SITE 41  
SITE 41  
346.0  
346.0  
342.9  
346.0  
346.0  
346.0  
346.0  
336.6  
346.0  
346.0  
33.0  
29.0  
28.58  
33.0  
29.0  
NS  
PW  
Pack Materials-Page 2  
MECHANICAL DATA  
MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000  
DGV (R-PDSO-G**)  
PLASTIC SMALL-OUTLINE  
24 PINS SHOWN  
0,23  
0,13  
M
0,07  
0,40  
24  
13  
0,16 NOM  
4,50  
4,30  
6,60  
6,20  
Gage Plane  
0,25  
0°ā8°  
0,75  
1
12  
0,50  
A
Seating Plane  
0,08  
0,15  
0,05  
1,20 MAX  
PINS **  
14  
16  
20  
24  
38  
48  
56  
DIM  
A MAX  
A MIN  
3,70  
3,50  
3,70  
3,50  
5,10  
4,90  
5,10  
4,90  
7,90  
7,70  
9,80  
9,60  
11,40  
11,20  
4073251/E 08/00  
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, not to exceed 0,15 per side.  
D. Falls within JEDEC: 24/48 Pins – MO-153  
14/16/20/56 Pins – MO-194  
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
MECHANICAL DATA  
MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001  
DB (R-PDSO-G**)  
PLASTIC SMALL-OUTLINE  
28 PINS SHOWN  
0,38  
0,22  
0,65  
28  
M
0,15  
15  
0,25  
0,09  
5,60  
5,00  
8,20  
7,40  
Gage Plane  
1
14  
0,25  
A
0°ā8°  
0,95  
0,55  
Seating Plane  
0,10  
2,00 MAX  
0,05 MIN  
PINS **  
14  
16  
20  
24  
28  
30  
38  
DIM  
6,50  
5,90  
6,50  
5,90  
7,50  
8,50  
7,90  
10,50  
9,90  
10,50 12,90  
A MAX  
A MIN  
6,90  
9,90  
12,30  
4040065 /E 12/01  
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 not to exceed 0,15.  
D. Falls within JEDEC MO-150  
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
MECHANICAL DATA  
MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999  
PW (R-PDSO-G**)  
PLASTIC SMALL-OUTLINE PACKAGE  
14 PINS SHOWN  
0,30  
0,19  
M
0,10  
0,65  
14  
8
0,15 NOM  
4,50  
4,30  
6,60  
6,20  
Gage Plane  
0,25  
1
7
0°8°  
A
0,75  
0,50  
Seating Plane  
0,10  
0,15  
0,05  
1,20 MAX  
PINS **  
8
14  
16  
20  
24  
28  
DIM  
3,10  
2,90  
5,10  
4,90  
5,10  
4,90  
6,60  
6,40  
7,90  
9,80  
9,60  
A MAX  
A MIN  
7,70  
4040064/F 01/97  
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 not to exceed 0,15.  
D. Falls within JEDEC MO-153  
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
IMPORTANT NOTICE  
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements,  
improvements, and other changes to its products and services at any time and to discontinue any product or service without notice.  
Customers should obtain the latest relevant information before placing orders and should verify that such information is current and  
complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.  
TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s  
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TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and  
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Data Converters  
DSP  
Applications  
Audio  
amplifier.ti.com  
dataconverter.ti.com  
dsp.ti.com  
www.ti.com/audio  
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Military  
www.ti.com/automotive  
www.ti.com/broadband  
www.ti.com/digitalcontrol  
www.ti.com/military  
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logic.ti.com  
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Microcontrollers  
RFID  
power.ti.com  
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Security  
www.ti.com/opticalnetwork  
www.ti.com/security  
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Copyright © 2007, Texas Instruments Incorporated  

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