SN54AHCT245_08 [TI]
OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS; 八路总线收发器与3态输出型号: | SN54AHCT245_08 |
厂家: | TEXAS INSTRUMENTS |
描述: | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
文件: | 总23页 (文件大小:1093K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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SCLS233N − OCTOBER 1995 − REVISED MARCH 2005
D
D
Inputs Are TTL-Voltage Compatible
D
ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
Latch-Up Performance Exceeds 250 mA Per
JESD 17
− 1000-V Charged-Device Model (C101)
SN54AHCT245 . . . J OR W PACKAGE
SN74AHCT245 . . . DB, DGV, DW, N, NS,
OR PW PACKAGE
SN74AHCT245 . . . RGY PACKAGE
(TOP VIEW)
SN54AHCT245 . . . FK PACKAGE
(TOP VIEW)
(TOP VIEW)
1
20
DIR
A1
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
3
2
1 20 19
18
A3
A4
A5
A6
A7
B1
B2
4
5
6
7
8
19
18
17
16
15
14
13
12
2
3
4
5
6
7
8
9
A1
A2
A3
A4
A5
A6
A7
A8
OE
B1
B2
B3
B4
B5
B6
B7
OE
B1
B2
B3
B4
B5
B6
B7
B8
17
A2
16 B3
A3
15
B4
B5
A4
14
A5
9 10 11 12 13
A6
A7
A8
10
11
GND
description/ordering information
These octal bus transceivers are designed for asynchronous two-way communication between data buses. The
control-function implementation minimizes external timing requirements.
The ’AHCT245 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus,
depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to
disable the device so that the buses effectively are isolated.
To ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup
CC
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP − N
Tube
SN74AHCT245N
SN74AHCT245N
QFN − RGY
Tape and reel
Tube
SN74AHCT245RGYR HB245
SN74AHCT245DW
SOIC − DW
AHCT245
Tape and reel
Tape and reel
Tape and reel
Tube
SN74AHCT245DWR
SN74AHCT245NSR
SN74AHCT245DBR
SN74AHCT245PW
SN74AHCT245PWR
SOP − NS
AHCT245
HB245
−40°C to 85°C
SSOP − DB
TSSOP − PW
HB245
Tape and reel
Tape and reel
Tube
TVSOP − DGV
CDIP − J
SN74AHCT245DGVR HB245
SNJ54AHCT245J
SNJ54AHCT245W
SNJ54AHCT245FK
SNJ54AHCT245J
CFP − W
Tube
SNJ54AHCT245W
SNJ54AHCT245FK
−55°C to 125°C
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.
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Copyright 2005, Texas Instruments Incorporated
ꢋ ꢙ ꢤ ꢜ ꢛꢧ ꢢꢡ ꢟꢠ ꢡꢛ ꢝꢤ ꢦꢘ ꢞꢙ ꢟ ꢟꢛ ꢮꢑ ꢌꢕ ꢖꢏ ꢯ ꢕꢔꢰꢂ ꢔꢂꢉ ꢞꢦꢦ ꢤꢞ ꢜ ꢞ ꢝꢣ ꢟꢣꢜ ꢠ ꢞ ꢜ ꢣ ꢟꢣ ꢠꢟꢣ ꢧ
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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ꢋꢆ ꢇꢄ ꢌ ꢍ ꢎ ꢀ ꢇ ꢏꢄ ꢁꢀ ꢆꢐ ꢑ ꢒꢐ ꢏꢀ
ꢓꢑ ꢇ ꢅ ꢔ ꢕꢀꢇꢄꢇ ꢐ ꢋꢎꢇ ꢖ ꢎꢇꢀ
SCLS233N − OCTOBER 1995 − REVISED MARCH 2005
FUNCTION TABLE
(each transceiver)
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
DIR
19
18
OE
B1
2
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 (see Note 1): Control inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
I
I/O, Output voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V
+ 0.5 V
O
CC
Input clamp current, I (V < 0): Control inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20 mA
IK
I
I/O, 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
O
O
CC
CC
or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 mA
Package thermal impedance, θ (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W
JA
(see Note 2): DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92°C/W
(see Note 2): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
(see Note 2): N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W
(see Note 2): NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W
(see Note 2): PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W
(see Note 3): RGY package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37°C/W
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
stg
†
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 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.
3. The package thermal impedance is calculated in accordance with JESD 51-5.
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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SCLS233N − OCTOBER 1995 − REVISED MARCH 2005
recommended operating conditions (see Note 4)
SN54AHCT245 SN74AHCT245
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
CC
−8
V
CC
−8
V
O
I
I
High-level output current
Low-level output current
mA
mA
ns/V
°C
OH
8
8
20
85
OL
∆t/∆v Input transition rise or fall rate
Operating free-air temperature
NOTE 4: All unused inputs of the device must be held at V
20
T
A
−55
125
−40
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)
T
A
= 25°C
TYP
4.5
SN54AHCT245 SN74AHCT245
PARAMETER
TEST CONDITIONS
V
UNIT
V
CC
MIN
4.4
MAX
MIN
4.4
MAX
MIN
4.4
MAX
I
I
I
I
= −50 mA
= −8 mA
= 50 mA
= 8 mA
OH
OH
OL
OL
V
V
4.5 V
4.5 V
OH
3.94
3.8
3.8
0.1
0.36
0.1
0.1
0.44
1*
0.1
0.44
1
V
OL
I
I
I
OE or DIR
V = 5.5 V or GND
0 V to 5.5 V
5.5 V
mA
mA
mA
I
I
†
V
= V
or GND
or GND,
0.25
4
2.5
40
2.5
40
A or B inputs
OZ
CC
O CC
V = V
CC
I
O
= 0
5.5 V
I
One input at 3.4 V,
Other inputs at
‡
5.5 V
1.35
10
1.5
1.5
10
mA
∆I
CC
V
or GND
CC
V = V
C
C
OE or DIR
or GND
or GND
5 V
5 V
2.5
4
pF
pF
i
I
CC
CC
A or B inputs
V = V
I
io
* On products compliant to MIL-PRF-38535, this parameter is not production tested at V
= 0 V.
CC
†
‡
For I/O ports, the parameter I
OZ
includes the input leakage current.
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
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ꢀ ꢁꢂ ꢃꢄ ꢅ ꢆꢇ ꢈꢃ ꢂꢉ ꢀ ꢁꢊ ꢃ ꢄꢅꢆ ꢇꢈ ꢃ ꢂ
ꢋꢆ ꢇꢄ ꢌ ꢍ ꢎ ꢀ ꢇ ꢏꢄ ꢁꢀ ꢆꢐ ꢑ ꢒꢐ ꢏꢀ
ꢓꢑ ꢇ ꢅ ꢔ ꢕꢀꢇꢄꢇ ꢐ ꢋꢎꢇ ꢖ ꢎꢇꢀ
SCLS233N − OCTOBER 1995 − REVISED MARCH 2005
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
SN54AHCT245 SN74AHCT245
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
PARAMETER
UNIT
ns
MIN
MAX
7.7**
7.7**
MIN
1**
1**
1**
1**
MAX
10**
10**
16**
16**
MIN
1
MAX
8.5
8.5
15
t
t
t
t
t
t
4.5**
4.5**
PLH
PHL
PZH
PZL
PHZ
PLZ
A or B
B or A
A or B
A or B
C
C
C
= 15 pF
= 15 pF
= 15 pF
L
L
L
1
8.9** 13.8**
8.9** 13.8**
9.2** 14.4**
9.2** 14.4**
1
ns
OE
OE
1
15
1** 16.5**
1** 16.5**
1
15.5
15.5
9.5
9.5
16
ns
1
t
t
t
t
t
t
t
5.3
5.3
9.7
9.7
10
8.7
8.7
1
1
1
1
1
1
11
11
1
PLH
PHL
PZH
PZL
PHZ
PLZ
sk(o)
A or B
OE
B or A
A or B
A or B
C
C
= 50 pF
= 50 pF
ns
ns
L
L
1
14.8
14.8
15.4
15.4
1***
17
1
17
1
16
17.5
17.5
1
16.5
16.5
1
C
C
= 50 pF
= 50 pF
ns
ns
OE
L
L
10
1
** On products compliant to MIL-PRF-38535, this parameter is not production tested.
*** On products compliant to MIL-PRF-38535, this parameter does not apply.
noise characteristics, V
= 5 V, C = 50 pF, T = 25°C (see Note 5)
CC
L
A
SN74AHCT245
PARAMETER
OH
UNIT
MIN
TYP
MAX
V
V
V
Quiet output, minimum dynamic V
High-level dynamic input voltage
Low-level dynamic input voltage
4
V
V
V
OH(V)
IH(D)
IL(D)
2
0.8
NOTE 5: Characteristics are for surface-mount packages only.
operating characteristics, V
= 5 V, T = 25°C
A
CC
PARAMETER
TEST CONDITIONS
No load, f = 1 MHz
TYP
UNIT
C
Power dissipation capacitance
13
pF
pd
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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SCLS233N − OCTOBER 1995 − REVISED MARCH 2005
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
Open
PLH PHL
/t
C
C
L
t
V
CC
L
PLZ PZL
/t
(see Note A)
(see Note A)
GND
PHZ PZH
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
CC
50% V
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 Ω, 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
6
PACKAGE OPTION ADDENDUM
www.ti.com
9-Oct-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
5962-9681901Q2A
5962-9681901QRA
5962-9681901QSA
SN74AHCT245DBLE
SN74AHCT245DBR
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)
SN74AHCT245DBRE4
SN74AHCT245DBRG4
SN74AHCT245DGVR
SN74AHCT245DGVRE4
SN74AHCT245DGVRG4
SN74AHCT245DW
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SSOP
SSOP
TVSOP
TVSOP
TVSOP
SOIC
SOIC
SOIC
SOIC
SOIC
PDIP
DB
DB
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)
DGV
DGV
DGV
DW
DW
DW
DW
DW
N
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)
25 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74AHCT245DWE4
SN74AHCT245DWG4
SN74AHCT245DWR
SN74AHCT245DWRG4
SN74AHCT245N
25 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
25 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)
20
Pb-Free
(RoHS)
CU NIPDAU N / A for Pkg Type
SN74AHCT245NE4
PDIP
N
20
Pb-Free
(RoHS)
CU NIPDAU N / A for Pkg Type
SN74AHCT245NSR
SN74AHCT245NSRE4
SN74AHCT245NSRG4
SN74AHCT245PW
SO
NS
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SO
NS
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SO
NS
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
TSSOP
TSSOP
TSSOP
PW
PW
PW
70 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74AHCT245PWE4
SN74AHCT245PWG4
70 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
70 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74AHCT245PWLE
SN74AHCT245PWR
OBSOLETE TSSOP
PW
PW
20
20
TBD
Call TI
Call TI
ACTIVE
ACTIVE
ACTIVE
TSSOP
TSSOP
TSSOP
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74AHCT245PWRE4
SN74AHCT245PWRG4
PW
PW
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)
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
9-Oct-2007
Orderable Device
SN74AHCT245RGYR
SN74AHCT245RGYRG4
Status (1)
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
QFN
RGY
20
1000 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
QFN
RGY
20
1000 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
SNJ54AHCT245FK
SNJ54AHCT245J
SNJ54AHCT245W
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.
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
12-Jan-2008
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
180
(mm)
16
SN74AHCT245DBR
SN74AHCT245DGVR
SN74AHCT245DWR
SN74AHCT245PWR
SN74AHCT245RGYR
DB
DGV
DW
20
20
20
20
20
SITE 41
SITE 41
SITE 41
SITE 41
SITE 41
8.2
7.0
7.5
5.6
2.5
1.6
2.7
1.6
1.6
12
8
16
12
24
16
12
Q1
Q1
Q1
Q1
Q1
12
24
10.8
6.95
3.8
13.0
7.1
12
8
PW
16
RGY
12
4.8
8
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
12-Jan-2008
Device
Package
Pins
Site
Length (mm) Width (mm) Height (mm)
SN74AHCT245DBR
SN74AHCT245DGVR
SN74AHCT245DWR
SN74AHCT245PWR
SN74AHCT245RGYR
DB
DGV
DW
20
20
20
20
20
SITE 41
SITE 41
SITE 41
SITE 41
SITE 41
346.0
346.0
346.0
346.0
190.5
346.0
346.0
346.0
346.0
212.7
33.0
29.0
41.0
33.0
31.75
PW
RGY
Pack Materials-Page 2
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
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
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