SN74BCT245PWRE4 [TI]

OCTAL BUS TRANSCEIVERS OCTAL BUS TRANSCEIVERS; 八路总线收发器八路总线收发器
SN74BCT245PWRE4
型号: SN74BCT245PWRE4
厂家: TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
描述:

OCTAL BUS TRANSCEIVERS OCTAL BUS TRANSCEIVERS
八路总线收发器八路总线收发器

总线驱动器 总线收发器 逻辑集成电路 光电二极管 信息通信管理
文件: 总20页 (文件大小:597K)
中文:  中文翻译
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SN54BCT245, SN74BCT245  
OCTAL BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCBS013H – SEPTEMBER 1998 – REVISED MAY 2002  
SN54BCT245 . . . J OR W PACKAGE  
SN74BCT245 . . . DB, DW, N, NS, OR PW PACKAGE  
(TOP VIEW)  
3-State Outputs Drive Bus Lines or Buffer  
Memory Address Registers  
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
DIR  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
V
CC  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
OE  
B1  
B2  
B3  
B4  
B5  
description  
These octal bus transceivers are designed for  
asynchronous communication between data  
buses. The devices transmit data from the A bus  
to the B bus or from the B bus to the A bus,  
depending upon the level at the direction-control  
(DIR) input. The output-enable (OE) input can be  
used to disable the device so the buses are  
effectively isolated.  
13 B6  
12 B7  
11  
GND  
B8  
SN54BCT245 . . . FK PACKAGE  
(TOP VIEW)  
3
2
1
20 19  
18  
B1  
B2  
A3  
A4  
A5  
A6  
A7  
4
5
6
7
8
17  
16 B3  
15  
B4  
B5  
14  
9 10 11 12 13  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
PACKAGE  
T
A
PDIP – N  
Tube  
SN74BCT245N  
SN74BCT245N  
Tube  
SN74BCT245DW  
SN74BVT245DWR  
SN74BCT245NSR  
SN74BCT245DBR  
SN74BCT245PWR  
SNJ54BCT245J  
SOIC – DW  
BCT245  
Tape and reel  
Tape and reel  
Tape and reel  
Tape and reel  
Tube  
0°C to 70°C  
SOP – NS  
SSOP – DB  
TSSOP – PW  
CDIP – J  
BCT245  
BT245  
BT245  
SNJ54BCT245J  
SNJ54BCT245W  
–55°C to 125°C  
CFP – W  
Tube  
SNJ54BCT245W  
SNJ54BCT245FK  
LCCC – FK  
Tube  
SNJ54BCT245FK  
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 2002, Texas Instruments Incorporated  
On products compliant to MIL-PRF-38535, all parameters are tested  
unless otherwise noted. On all other products, production  
processing does not necessarily include testing of all parameters.  
PRODUCTION DATA information is 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  
SN54BCT245, SN74BCT245  
OCTAL BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCBS013H SEPTEMBER 1998 REVISED MAY 2002  
FUNCTION TABLE  
INPUTS  
OPERATION  
OE  
L
DIR  
L
B data to A bus  
A data to B bus  
Isolation  
L
H
H
X
logic diagram (positive logic)  
1
2
DIR  
19  
18  
OE  
B1  
A1  
To Seven Other Channels  
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 : Control inputs (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V  
I
I/O ports (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 5.5 V  
Voltage range applied to any output in the disabled or power-off state, V . . . . . . . . . . . . . . . . . 0.5 V to 7 V  
O
Voltage range applied to any output in the high state, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to V  
O
CC  
Current into any output in the low state, I : SN54BCT245 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA  
O
SN74BCT245 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA  
Package thermal impedance, θ (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W  
JA  
DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W  
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W  
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W  
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°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.  
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
SN54BCT245, SN74BCT245  
OCTAL BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCBS013H SEPTEMBER 1998 REVISED MAY 2002  
recommended operating conditions (see Note 3)  
SN54BCT245  
SN74BCT245  
MIN NOM MAX  
UNIT  
MIN NOM  
MAX  
V
V
V
Supply voltage  
4.5  
2
5
5.5  
4.5  
2
5
5.5  
V
V
CC  
IH  
IL  
High-level input voltage  
Low-level input voltage  
Input clamp current  
0.8  
18  
3  
0.8  
18  
3  
V
I
IK  
mA  
A port  
B port  
A port  
B port  
I
High-level output current  
mA  
OH  
OL  
12  
20  
15  
24  
I
Low-level output current  
mA  
48  
64  
T
A
Operating free-air temperature  
55  
125  
0
70  
°C  
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.  
electrical characteristics over recommended operating free-air temperature range (unless  
otherwise noted)  
SN54BCT245  
SN74BCT245  
PARAMETER  
TEST CONDITIONS  
UNIT  
MIN TYP  
MAX  
MIN TYP  
MAX  
V
V
V
= 4.5 V,  
= 4.5 V  
I = 18 mA  
1.2  
1.2  
V
IK  
CC  
I
I
I
I
I
I
I
I
I
I
= 1 mA  
= 3 mA  
= 3 mA  
= 12 mA  
= 15 mA  
= 20 mA  
= 24 mA  
= 48 mA  
= 64 mA  
2.5  
2.4  
2.4  
2
3.4  
3.3  
3.3  
3.2  
2.5  
2.4  
2.4  
3.4  
3.3  
3.3  
OH  
OH  
OH  
OH  
OH  
OL  
OL  
OL  
OL  
A port  
B port  
CC  
V
OH  
V
V
V
CC  
= 4.5 V  
2
3.1  
0.35  
0.42  
0.3  
0.5  
A port  
B port  
V
CC  
V
CC  
V
CC  
V
CC  
V
CC  
V
CC  
= 4.5 V  
= 4.5 V  
= 5.5 V,  
= 5.5 V,  
= 5.5 V,  
= 5.5 V,  
0.5  
V
OL  
0.38  
0.55  
0.55  
1
A or B port  
Control input  
A or B port  
Control input  
A or B port  
Control input  
A port  
1
0.1  
V = 5.5 V  
I
mA  
µA  
I
I
0.1  
70  
70  
V = 2.7 V  
I
I
IH  
20  
20  
0.65  
1.2  
150  
225  
90  
0.65  
1.2  
150  
225  
90  
V = 0.5 V  
I
mA  
mA  
I
IL  
60  
60  
§
V
O
= 0  
I
OS  
B port  
100  
100  
I
I
I
A to B  
V
CC  
V
CC  
V
CC  
V
CC  
= 5.5 V  
= 5.5 V  
= 5.5 V  
= 5 V,  
57  
36  
10  
7
57  
36  
10  
7
mA  
mA  
mA  
pF  
CCL  
CCH  
CCZ  
A to B  
57  
57  
15  
15  
C
Control input  
A to B  
V = 2.5 V or 0.5 V  
I
i
9
9
C
V
CC  
= 5 V,  
V = 2.5 V or 0.5 V  
O
pF  
io  
B to A  
12  
12  
§
All typical values are at V  
For I/O ports, the parameters I and I include the off-state output current.  
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.  
= 5 V, T = 25°C.  
A
CC  
IH  
IL  
3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
SN54BCT245, SN74BCT245  
OCTAL BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCBS013H SEPTEMBER 1998 REVISED MAY 2002  
switching characteristics (see Figure 1)  
V
C
= 5 V,  
= 50 pF,  
V
= 4.5 V to 5.5 V,  
C = 50 pF,  
L
CC  
L
CC  
R1 = 500 ,  
R2 = 500 ,  
T
A
R1 = 500 ,  
R2 = 500 ,  
T = MIN to MAX  
A
FROM  
(INPUT)  
TO  
(OUTPUT)  
PARAMETER  
UNIT  
= 25°C  
BCT245  
TYP  
4.4  
SN54BCT245 SN74BCT245  
MIN  
1
MAX  
6
MIN  
1
MAX  
7.2  
MIN  
1
MAX  
7
t
t
t
t
t
t
PLH  
PHL  
PZH  
PZL  
PHZ  
PLZ  
A or B  
B or A  
A or B  
A or B  
ns  
ns  
ns  
1.5  
1.5  
1.5  
1.5  
1.5  
4.8  
6.6  
9.4  
10.2  
8.3  
7.8  
1.5  
1.5  
1.5  
1.5  
1.5  
7.6  
1.5  
1.5  
1.5  
1.5  
1.5  
7
8
11.2  
11.8  
9.7  
10.9  
11.6  
9.3  
9.1  
OE  
OE  
8
5.8  
5.1  
9.6  
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.  
4
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
SN54BCT245, SN74BCT245  
OCTAL BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCBS013H SEPTEMBER 1998 REVISED MAY 2002  
PARAMETER MEASUREMENT INFORMATION  
7 V (t  
, t  
, O.C.)  
PZL PLZ  
Open  
(all others)  
S1  
From Output  
Under Test  
Test  
Point  
C
L
R1  
R1  
(see Note A)  
From Output  
Under Test  
Test  
Point  
C
L
R2  
(see Note A)  
LOAD CIRCUIT FOR  
TOTEM-POLE OUTPUTS  
R
= R1 = R2  
L
LOAD CIRCUIT FOR  
3-STATE AND OPEN-COLLECTOR OUTPUTS  
High-Level  
Pulse  
(see Note B)  
3 V  
0 V  
1.5 V  
1.5 V  
3 V  
Timing Input  
(see Note B)  
1.5 V  
t
w
0 V  
3 V  
0 V  
3 V  
0 V  
t
h
Low-Level  
Pulse  
t
1.5 V  
su  
1.5 V  
Data Input  
(see Note B)  
1.5 V  
1.5 V  
VOLTAGE WAVEFORMS  
PULSE DURATION  
VOLTAGE WAVEFORMS  
SETUP AND HOLD TIMES  
3 V  
0 V  
Output  
Control  
(low-level enable)  
3 V  
1.5 V  
1.5 V  
Input  
(see Note B)  
1.5 V  
1.5 V  
0 V  
PHL  
t
t
PZL  
t
t
PLZ  
t
PLH  
3.5 V  
In-Phase  
Output  
(see Note D)  
V
OH  
1.5 V  
Waveform 1  
(see Notes C and D)  
1.5 V  
1.5 V  
1.5 V  
t
V
OL  
V
OL  
0.3 V  
t
PHZ  
PLH  
t
PHL  
PZH  
V
OH  
V
OH  
Out-of-Phase  
Output  
(see Note D)  
Waveform 2  
(see Notes C and D)  
1.5 V  
1.5 V  
0.3 V  
0 V  
V
OL  
VOLTAGE WAVEFORMS  
PROPAGATION DELAY TIMES (see Note D)  
VOLTAGE WAVEFORMS  
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS  
NOTES: A.  
C includes probe and jig capacitance.  
L
B. All input pulses are supplied by generators having the following characteristics: PRR 10 MHz, t = t 2.5 ns, duty cycle = 50%.  
r
f
C. 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.  
D. The outputs are measured one at a time with one transition per measurement.  
E. When measuring propagation delay times of 3-state outputs, switch S1 is open.  
Figure 1. Load Circuit and Voltage Waveforms  
5
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
SN54BCT245, SN74BCT245  
OCTAL BUS TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCBS013H SEPTEMBER 1998 REVISED MAY 2002  
TYPICAL CHARACTERISTICS  
Figures 2 through 5 show the typical power dissipation for an SN74BCT245 over variations in outputs switching,  
output frequency, and capacitive load.  
POWER DISSIPATION  
vs  
POWER DISSIPATION  
vs  
FREQUENCY  
FREQUENCY  
1050  
900  
1400  
1200  
V
T
R
= 5.5 V  
Eight Switching  
V
= 5.5 V  
CC  
= 70°C  
A
L
CC  
= 70°C  
T
A
= 500 Ω  
R
= 500 Ω  
Eight Switching  
L
Air Flow = 0  
= 50 pF  
Air Flow = 0  
C = 15 pF  
750  
1000  
800  
600  
400  
C
L
L
Four Switching  
One Switching  
600  
450  
300  
Four Switching  
One Switching  
150  
0
200  
0
0
10  
20  
30  
40  
50  
10  
20  
30  
40  
50  
0
f Frequency MHz  
f Frequency MHz  
Figure 2  
Figure 3  
POWER DISSIPATION  
vs  
POWER DISSIPATION  
vs  
FREQUENCY  
FREQUENCY  
1750  
1750  
1500  
Eight Switching  
Four Switching  
V
T
R
= 5.5 V  
= 70°C  
= 500 Ω  
Eight Switching  
V
CC  
= 5.5 V  
= 70°C  
CC  
A
L
T
A
L
1500  
1250  
1000  
750  
R
= 500 Ω  
Air Flow = 0  
= 150 pF  
Air Flow = 0  
= 100 pF  
1250  
1000  
750  
C
C
L
L
Four Switching  
One Switching  
One Switching  
500  
500  
250  
0
250  
0
0
10  
20  
30  
40  
50  
0
10  
20  
30  
40  
50  
f Frequency MHz  
f Frequency MHz  
Figure 4  
Figure 5  
The dashed lines are for the DB package only.  
6
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
PACKAGE OPTION ADDENDUM  
www.ti.com  
28-May-2007  
PACKAGING INFORMATION  
Orderable Device  
Status (1)  
Package Package  
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)  
Qty  
Type  
LCCC  
CDIP  
CFP  
Drawing  
5962-9051401M2A  
5962-9051401MRA  
5962-9051401MSA  
SN74BCT245DBLE  
SN74BCT245DBR  
ACTIVE  
ACTIVE  
FK  
J
20  
20  
20  
20  
20  
1
1
1
TBD  
TBD  
TBD  
TBD  
POST-PLATE N / A for Pkg Type  
A42 SNPB  
A42  
N / A for Pkg Type  
N / A for Pkg Type  
Call TI  
ACTIVE  
W
OBSOLETE  
ACTIVE  
SSOP  
SSOP  
DB  
DB  
Call TI  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SN74BCT245DBRE4  
SN74BCT245DBRG4  
SN74BCT245DW  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
SSOP  
SSOP  
SOIC  
DB  
DB  
DW  
DW  
DW  
DW  
DW  
DW  
N
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
20  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
25 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SN74BCT245DWE4  
SN74BCT245DWG4  
SN74BCT245DWR  
SN74BCT245DWRE4  
SN74BCT245DWRG4  
SN74BCT245N  
SOIC  
25 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SOIC  
25 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SOIC  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SOIC  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SOIC  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
PDIP  
20  
Pb-Free  
(RoHS)  
CU NIPDAU N / A for Pkg Type  
SN74BCT245NE4  
SN74BCT245NSR  
SN74BCT245NSRE4  
SN74BCT245PW  
PDIP  
N
20  
Pb-Free  
(RoHS)  
CU NIPDAU N / A for Pkg Type  
SO  
NS  
NS  
PW  
PW  
PW  
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)  
TSSOP  
TSSOP  
TSSOP  
TSSOP  
TSSOP  
TSSOP  
70 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SN74BCT245PWE4  
SN74BCT245PWG4  
SN74BCT245PWR  
SN74BCT245PWRE4  
SN74BCT245PWRG4  
70 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
70 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)  
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
SNJ54BCT245FK  
SNJ54BCT245J  
SNJ54BCT245W  
ACTIVE  
ACTIVE  
ACTIVE  
LCCC  
CDIP  
CFP  
FK  
J
20  
20  
20  
1
1
1
TBD  
TBD  
TBD  
POST-PLATE N / A for Pkg Type  
A42 SNPB  
A42  
N / A for Pkg Type  
N / A for Pkg Type  
W
(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.  
Addendum-Page 1  
PACKAGE OPTION ADDENDUM  
www.ti.com  
28-May-2007  
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  
19-May-2007  
TAPE AND REEL INFORMATION  
Pack Materials-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
19-May-2007  
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  
(mm)  
16  
SN74BCT245DBR  
SN74BCT245DWR  
SN74BCT245NSR  
SN74BCT245PWR  
DB  
DW  
NS  
20  
20  
20  
20  
MLA  
MLA  
MLA  
MLA  
8.2  
10.8  
8.2  
7.5  
13.0  
13.0  
7.1  
2.5  
2.7  
2.5  
1.6  
12  
12  
12  
8
16  
24  
24  
16  
Q1  
Q1  
Q1  
Q1  
24  
24  
PW  
16  
6.95  
TAPE AND REEL BOX INFORMATION  
Device  
Package  
Pins  
Site  
Length (mm) Width (mm) Height (mm)  
SN74BCT245DBR  
SN74BCT245DWR  
SN74BCT245NSR  
SN74BCT245PWR  
DB  
DW  
NS  
20  
20  
20  
20  
MLA  
MLA  
MLA  
MLA  
342.9  
333.2  
333.2  
342.9  
336.6  
333.2  
333.2  
336.6  
28.58  
31.75  
31.75  
28.58  
PW  
Pack Materials-Page 2  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
19-May-2007  
Pack Materials-Page 3  
MECHANICAL DATA  
MLCC006B – OCTOBER 1996  
FK (S-CQCC-N**)  
LEADLESS CERAMIC CHIP CARRIER  
28 TERMINAL SHOWN  
A
B
NO. OF  
TERMINALS  
**  
18 17 16 15 14 13 12  
MIN  
MAX  
MIN  
MAX  
0.342  
(8,69)  
0.358  
(9,09)  
0.307  
(7,80)  
0.358  
(9,09)  
19  
20  
11  
10  
9
20  
28  
44  
52  
68  
84  
0.442  
(11,23)  
0.458  
(11,63)  
0.406  
(10,31)  
0.458  
(11,63)  
21  
B SQ  
22  
0.640  
(16,26)  
0.660  
(16,76)  
0.495  
(12,58)  
0.560  
(14,22)  
8
A SQ  
23  
0.739  
(18,78)  
0.761  
(19,32)  
0.495  
(12,58)  
0.560  
(14,22)  
7
24  
25  
6
0.938  
(23,83)  
0.962  
(24,43)  
0.850  
(21,6)  
0.858  
(21,8)  
5
1.141  
(28,99)  
1.165  
(29,59)  
1.047  
(26,6)  
1.063  
(27,0)  
26 27 28  
1
2
3
4
0.080 (2,03)  
0.064 (1,63)  
0.020 (0,51)  
0.010 (0,25)  
0.020 (0,51)  
0.010 (0,25)  
0.055 (1,40)  
0.045 (1,14)  
0.045 (1,14)  
0.035 (0,89)  
0.045 (1,14)  
0.035 (0,89)  
0.028 (0,71)  
0.022 (0,54)  
0.050 (1,27)  
4040140/D 10/96  
NOTES: A. All linear dimensions are in inches (millimeters).  
B. This drawing is subject to change without notice.  
C. This package can be hermetically sealed with a metal lid.  
D. The terminals are gold plated.  
E. Falls within JEDEC MS-004  
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,  
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Applications  
Audio  
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