74AC11245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS010B – JULY 1987 – REVISED APRIL 1996
D
D
D
D
D
D
DB, DW, NT, OR PW PACKAGE
(TOP VIEW)
3-State Outputs Drive Bus Lines Directly
Flow-Through Architecture Optimizes
PCB Layout
Center-Pin VCC and GND Configurations
Minimize High-Speed Switching Noise
EPIC t (Enhanced-Performance Implanted
CMOS) 1-mm Process
500-mA Typical Latch-Up Immunity at
125°C
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, and Standard Plastic 300-mil
DIPs (NT)
A1
A2
A3
A4
GND
GND
GND
GND
A5
A6
A7
A8
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
DIR
B1
B2
B3
B4
VCC
VCC
B5
B6
B7
B8
OE
description
This octal bus transceiver is designed for asynchronous two-way communication between data buses. The
control-function implementation minimizes external timing requirements.
The device allows noninverted 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 are effectively isolated.
The 74AC11245 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
DIRECTION
CONTROL
DIR
OPERATION
L
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
OUTPUT
ENABLE
OE
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.
EPIC is a trademark of Texas Instruments Incorporated.
Copyright 1996, Texas Instruments Incorporated
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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
74AC11245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS010B – JULY 1987 – REVISED APRIL 1996
logic symbol†
OE
DIR
13
G3
24
3 EN1 [BA]
3 EN2 [AB]
A1
A2
A3
A4
A5
A6
A7
A8
1
23
1
2
2
22
3
21
4
20
9
17
10
16
11
15
12
14
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
DIR
24
13
A1
23
A2
B7
12
14
2
B6
11
15
A8
B5
10
16
A7
B4
9
17
A6
B3
4
20
A5
B2
3
21
A4
B1
2
22
A3
OE
1
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
B8
B1
B2
B3
B4
B5
B6
B7
B8
74AC11245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS010B – JULY 1987 – REVISED APRIL 1996
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V
Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V
Input clamp current, IIK (VI < 0 or VI > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±200 mA
Maximum power dissipation at TA = 55°C (in still air) (see Note 2): DB package . . . . . . . . . . . . . . . . . . 0.65 W
DW package . . . . . . . . . . . . . . . . . . 1.7 W
NT package . . . . . . . . . . . . . . . . . . . 1.3 W
PW package . . . . . . . . . . . . . . . . . . . 0.7 W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
† 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 maximum package power dissipation is calculated using a junction temperature of 150_C and a board trace length of 750 mils,
except for the NT package, which has a trace length of zero.
recommended operating conditions
VCC
VIH
Supply voltage
VCC = 3 V
VCC = 4.5 V
High-level input voltage
VCC = 5.5 V
VCC = 3 V
VIL
VI
VO
IOH
IOL
Dt/Dv
TA
Low-level input voltage
MIN
NOM
MAX
3
5
5.5
V
3.15
3.85
0.9
1.35
V
1.65
Input voltage
0
Output voltage
0
VCC = 3 V
VCC = 4.5 V
Low-level output current
V
2.1
VCC = 4.5 V
VCC = 5.5 V
High-level output current
UNIT
VCC
VCC
V
V
–4
–24
VCC = 5.5 V
VCC = 3 V
–24
VCC = 4.5 V
VCC = 5.5 V
24
mA
12
mA
24
Input transition rise or fall rate
0
10
ns/V
Operating free-air temperature
–40
85
°C
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
74AC11245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS010B – JULY 1987 – REVISED APRIL 1996
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
IOH = –50 mA
VOH
IOH = –4 mA
IOH = –24
24 mA
IOH = –75 mA{
IOL = 12 mA
IOL = 24 mA
II
A or B ports‡
OE or DIR
ICC
Ci
TA = 25°C
TYP
MAX
2.9
2.9
4.5 V
4.4
4.4
5.5 V
5.4
5.4
3V
2.58
2.48
4.5 V
3.94
3.8
5.5 V
4.94
4.8
3.85
0.1
4.5 V
0.1
0.1
5.5 V
0.1
0.1
3V
0.36
0.44
4.5 V
0.36
0.44
5.5 V
0.36
0.44
VO = VCC or GND
55V
5.5
UNIT
V
0.1
5.5 V
IO = 0
MAX
3V
IOL = 75 mA{
VI = VCC or GND,
VI = VCC or GND
MIN
3V
5.5 V
IOL = 50 mA
VOL
MIN
V
1.65
5.5 V
5V
±0.5
±5
±0.1
±1
8
80
4
mA
mA
pF
Cio
VO = VCC or GND
5V
12
† Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
‡ For I/O ports, the parameter IOZ includes the input leakage current.
pF
switching characteristics over recommended operating free-air temperature range,
VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
tPLH
tPHL
A or B
B or A
tPZH
tPZL
OE
B or A
tPHZ
tPLZ
OE
B or A
MIN
TA = 25°C
TYP
MAX
MIN
MAX
1.5
6.5
11.2
1.5
12.5
1.5
5.7
8.5
1.5
9.7
1.5
8.6
14.2
1.5
15.9
1.5
8.2
11.5
1.5
12.7
1.5
7.7
10.5
1.5
11.3
1.5
8.5
12
1.5
13
UNIT
ns
ns
ns
switching characteristics over recommended operating free-air temperature range,
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
4
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
tPLH
tPHL
A or B
B or A
tPZH
tPZL
OE
B or A
tPHZ
tPLZ
OE
B or A
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TA = 25°C
MIN
TYP
MAX
MIN
MAX
1.5
4.8
8.5
1.5
9.5
1.5
4.1
6.3
1.5
6.9
1.5
6.2
10.2
1.5
11.4
1.5
5.9
8.6
1.5
9.5
1.5
6.4
8.8
1.5
9.5
1.5
7
9.6
1.5
10.4
UNIT
ns
ns
ns
74AC11245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS010B – JULY 1987 – REVISED APRIL 1996
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER
Cpd
d
TEST CONDITIONS
Outputs enabled
Power dissipation capacitance per transceiver
Outputs disabled
pF
CL = 50 pF,
TYP
f = 1 MHz
64
16
UNIT
pF
PARAMETER MEASUREMENT INFORMATION
2 × VCC
S1
500 Ω
From Output
Under Test
GND
Output
Control
(low-level
enabling)
LOAD CIRCUIT
VCC
50%
50%
0V
tPLH
tPHL
VOH
Output
S1
tPLH /tPHL
tPLZ /tPZL
tPHZ /tPZH
Open
2 × VCC
GND
50%
50%
500 Ω
CL = 50 pF
(see Note A)
Input
TEST
Open
50% VCC
50% VCC
VOL
VCC
0V
tPZL
Output
Waveform 2
S1 at GND
(see Note B)
[ VCC
tPLZ
Output
Waveform 1
S1 at 2 × VCC
(see Note B)
50% VCC
VOL
tPHZ
tPZH
VOLTAGE WAVEFORMS
20% VCC
50% VCC
80% VCC
VOH
[0V
VOLTAGE WAVEFORMS
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 ≤ 1 MHz, ZO = 50 Ω, tr = 3 ns, tf = 3 ns.
D. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
PACKAGE OPTION ADDENDUM
www.ti.com
11-Nov-2009
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
74AC11245DBLE
OBSOLETE
SSOP
DB
24
TBD
Call TI
Call TI
74AC11245DBR
OBSOLETE
SSOP
DB
24
TBD
Call TI
Call TI
74AC11245DW
ACTIVE
SOIC
DW
24
25
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74AC11245DWE4
ACTIVE
SOIC
DW
24
25
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74AC11245DWG4
ACTIVE
SOIC
DW
24
25
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74AC11245DWR
ACTIVE
SOIC
DW
24
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74AC11245DWRE4
ACTIVE
SOIC
DW
24
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74AC11245DWRG4
ACTIVE
SOIC
DW
24
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74AC11245NT
ACTIVE
PDIP
NT
24
15
Pb-Free
(RoHS)
CU NIPDAU
N / A for Pkg Type
74AC11245NTE4
ACTIVE
PDIP
NT
24
15
Pb-Free
(RoHS)
CU NIPDAU
N / A for Pkg Type
74AC11245PWLE
OBSOLETE
TSSOP
PW
24
TBD
Call TI
Lead/Ball Finish
MSL Peak Temp (3)
Call TI
(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
29-Jul-2009
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
74AC11245DWR
Package Package Pins
Type Drawing
SOIC
DW
24
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
2000
330.0
24.4
Pack Materials-Page 1
10.75
B0
(mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
15.7
2.7
12.0
24.0
Q1
PACKAGE MATERIALS INFORMATION
www.ti.com
29-Jul-2009
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
74AC11245DWR
SOIC
DW
24
2000
346.0
346.0
41.0
Pack Materials-Page 2
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
0,15 M
15
0,25
0,09
8,20
7,40
5,60
5,00
Gage Plane
1
14
0,25
A
0°–ā8°
0,95
0,55
Seating Plane
2,00 MAX
0,10
0,05 MIN
PINS **
14
16
20
24
28
30
38
A MAX
6,50
6,50
7,50
8,50
10,50
10,50
12,90
A MIN
5,90
5,90
6,90
7,90
9,90
9,90
12,30
DIM
4040065 /E 12/01
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion not to exceed 0,15.
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
0,65
14
0,10 M
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
0,15
0,05
1,20 MAX
PINS **
0,10
8
14
16
20
24
28
A MAX
3,10
5,10
5,10
6,60
7,90
9,80
A MIN
2,90
4,90
4,90
6,40
7,70
9,60
DIM
4040064/F 01/97
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion not to exceed 0,15.
Falls within JEDEC MO-153
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
15-Oct-2015
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
Lead/Ball Finish
MSL Peak Temp
(2)
(6)
(3)
Op Temp (°C)
Device Marking
(4/5)
74AC11245DBLE
OBSOLETE
SSOP
DB
24
TBD
Call TI
Call TI
-40 to 85
74AC11245DW
ACTIVE
SOIC
DW
24
25
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
AC11245
74AC11245DWG4
ACTIVE
SOIC
DW
24
25
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
AC11245
74AC11245DWR
ACTIVE
SOIC
DW
24
2000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
AC11245
74AC11245PWLE
OBSOLETE
TSSOP
PW
24
TBD
Call TI
Call TI
-40 to 85
(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.
(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.
Addendum-Page 1
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
15-Oct-2015
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
74AC11245DWR
Package Package Pins
Type Drawing
SOIC
DW
24
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
2000
330.0
24.4
Pack Materials-Page 1
10.75
B0
(mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
15.7
2.7
12.0
24.0
Q1
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)
74AC11245DWR
SOIC
DW
24
2000
367.0
367.0
45.0
Pack Materials-Page 2
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
0,15 M
15
0,25
0,09
8,20
7,40
5,60
5,00
Gage Plane
1
14
0,25
A
0°–ā8°
0,95
0,55
Seating Plane
2,00 MAX
0,10
0,05 MIN
PINS **
14
16
20
24
28
30
38
A MAX
6,50
6,50
7,50
8,50
10,50
10,50
12,90
A MIN
5,90
5,90
6,90
7,90
9,90
9,90
12,30
DIM
4040065 /E 12/01
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion not to exceed 0,15.
Falls within JEDEC MO-150
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