SN54ABT2245, SN74ABT2245
OCTAL TRANSCEIVERS AND LINE/MOS DRIVERS
WITH 3-STATE OUTPUTS
SCBS234D – SEPTEMBER 1992 – REVISED MAY 1997
D
D
D
D
D
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
SN54ABT2245 . . . FK PACKAGE
(TOP VIEW)
A3
A4
A5
A6
A7
description
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
B1
B2
B3
B4
B5
A8
GND
B8
B7
B6
These octal transceivers and line drivers 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 on the logic 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.
OE
D
SN54ABT2245 . . . J OR W PACKAGE
SN74ABT2245 . . . DB, DW, N, OR PW PACKAGE
(TOP VIEW)
B-Port Outputs Have Equivalent 25-Ω
Series Resistors, So No External Resistors
Are Required
State-of-the-Art EPIC-ΙΙB BiCMOS Design
Significantly Reduces Power Dissipation
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
ESD Protection Exceeds 2000 V Per
MIL-STD-833, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Typical VOLP (Output Ground Bounce) < 1 V
at VCC = 5 V, TA = 25°C
High-Impedance State During Power Up
and Power Down
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK),
Plastic (N) and Ceramic (J) DIPs, and
Ceramic Flat (W) Package
A2
A1
DIR
VCC
D
The B-port outputs, which are designed to sink up to 12 mA, include equivalent 25-Ω series resistors to reduce
overshoot and undershoot.
When VCC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 2.1 V, OE should be tied to VCC through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking/current-sourcing capability of the driver.
The SN54ABT2245 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74ABT2245 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
INPUTS
OE
DIR
OPERATION
L
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
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-ΙΙB is a trademark of Texas Instruments Incorporated.
Copyright 1997, 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
SN54ABT2245, SN74ABT2245
OCTAL TRANSCEIVERS AND LINE/MOS DRIVERS
WITH 3-STATE OUTPUTS
SCBS234D – SEPTEMBER 1992 – REVISED MAY 1997
logic symbol†
19
OE
1
DIR
2
A1
G3
3 EN1 [BA]
3 EN2 [AB]
18
1
B1
2
A2
A3
A4
A5
A6
A7
A8
3
17
4
16
5
15
6
14
7
13
8
12
9
11
B2
B3
B4
B5
B6
B7
B8
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
DIR
1
19
A1
2
18
To Seven Other Channels
2
OE
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
B1
SN54ABT2245, SN74ABT2245
OCTAL TRANSCEIVERS AND LINE/MOS DRIVERS
WITH 3-STATE OUTPUTS
SCBS234D – SEPTEMBER 1992 – REVISED MAY 1997
schematic of A-port outputs
schematic of B-port outputs
VCC
VCC
25 Ω
Output
Output
GND
GND
All resistor values shown are nominal.
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 (except I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
Voltage range applied to any output in the high or power-off state, VO . . . . . . . . . . . . . . . . . . . –0.5 V to 5.5 V
Current into any output in the low state, IO: SN54ABT2245 (except B port) . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74ABT2245 (except B port) . . . . . . . . . . . . . . . . . . . . . 128 mA
B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA
Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –18 mA
Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115°C/W
DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128°C/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 negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with EIA/JEDEC Std JESD51, except for through-hole packages,
which use a trace length of zero.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SN54ABT2245, SN74ABT2245
OCTAL TRANSCEIVERS AND LINE/MOS DRIVERS
WITH 3-STATE OUTPUTS
SCBS234D – SEPTEMBER 1992 – REVISED MAY 1997
recommended operating conditions (see Note 3)
SN54ABT2245
VCC
VIH
Supply voltage
VIL
VI
Low-level input voltage
High-level input voltage
MAX
MIN
MAX
4.5
5.5
4.5
5.5
2
2
0.8
Input voltage
0
V
V
–12
–12
A port
48
64
B port
12
12
IOL
Low level output current
Low-level
∆t/∆v
Input transition rise or fall rate
∆t/∆VCC
TA
Power-up ramp rate
200
Operating free-air temperature
–55
Outputs enabled
POST OFFICE BOX 655303
0.8
B port
High level output current
High-level
• DALLAS, TEXAS 75265
5
5
–40
mA
mA
ns/V
µs/V
200
125
V
VCC
–32
A port
IOH
0
UNIT
V
VCC
–24
NOTE 3: Unused pins (input or I/O) must be held high or low to prevent them from floating.
4
SN74ABT2245
MIN
85
°C
SN54ABT2245, SN74ABT2245
OCTAL TRANSCEIVERS AND LINE/MOS DRIVERS
WITH 3-STATE OUTPUTS
SCBS234D – SEPTEMBER 1992 – REVISED MAY 1997
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
B port
TEST CONDITIONS
VCC = 4.5 V,
VCC = 4.5 V,
II = –18 mA
IOH = –1 mA
VCC = 5 V,
VCC = 4
4.5
5V
VOH
A port
VCC = 4.5 V,
VCC = 5 V,
5V
VCC = 4
4.5
B port
VOL
VCC = 4
4.5
5V
A port
MIN
SN54ABT2245
MIN
–1.2
MAX
SN74ABT2245
MIN
–1.2
MAX
–1.2
3.35
3.3
3.35
IOH = –1 mA
IOH = –3 mA
3.85
3.8
3.85
3
3.1
IOH = –12 mA
IOH = –3 mA
2.6
2.5
2.5
2.5
IOH = –3 mA
IOH = –24 mA
3
3
3
2
2
IOH = –32 mA
IOL = 8 mA
2*
2.6
A or B ports
V
V
0.65
0.8
0.65
0.8
0.8
0.55
IOL = 64 mA
0.55
0.55*
VCC = 0 to 5.5 V, VI = VCC or GND
VCC = 2.1 V to 5.5 V,
VI = VCC or GND
V
0.55
100
Control inputs
UNIT
2
IOL = 12 mA
IOL = 48 mA
Vhys
II
TA = 25°C
TYP†
MAX
mV
±1
±1
±1
±20
±20
±20
µA
IOZH‡
VCC = 2.1 V to 5.5 V,
VO = 2.7 V, OE ≥ 2 V
10
10
10
µA
IOZL‡
VCC = 2.1 V to 5.5 V,
VO = 0.5 V, OE ≥ 2 V
–10
–10
–10
µA
IOZPU§
VCC = 0 to 2.1 V,
VO = 0.5 V to 2.7 V, OE = X
±50
±50
±50
µA
IOZPD§
VCC = 2.1 V to 0,
VO = 0.5 V to 2.7 V, OE = X
±50
±50
±50
µA
Ioff
ICEX
VCC = 0,
VCC = 5.5 V,
±100
µA
50
µA
IO¶
ICC
Outputs high
B port
50
–25
50
–100
–25
–100
–25
–100
–100
–180
–50
–180
–50
–180
VO = 2.5
25V
VCC = 5.5 V,
IO = 0,
VI = VCC or GND
Outputs high
1
250
250
250
µA
A or B ports
Outputs low
24
32
32
32
mA
Outputs disabled
0.5
250
250
250
µA
Outputs enabled
1.5
1.5
1.5
Data inputs
VCC = 5.5 V,
One input at 3.4 V,,
Other inputs at
VCC or GND
Outputs disabled
0.05
0.05
0.05
1.5
1.5
1.5
Control inputs
Cio
±100
VCC = 5
5.5
5 V,
V
A port
∆ICC#
Ci
VI or VO ≤ 4.5 V
VO = 5.5 V
–50
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
VI = 2.5 V or 0.5 V
VO = 2.5 V or 0.5 V
mA
mA
3
pF
6
pF
* On products compliant to MIL-PRF-38535, this parameter does not apply.
† All typical values are at VCC = 5 V.
‡ The parameters IOZH and IOZL include the input leakage current.
§ This parameter is characterized but not production tested.
¶ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
# This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
SN54ABT2245, SN74ABT2245
OCTAL TRANSCEIVERS AND LINE/MOS DRIVERS
WITH 3-STATE OUTPUTS
SCBS234D – SEPTEMBER 1992 – REVISED MAY 1997
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
(OUTPUT)
tPLH
tPHL
A
B
tPLH
tPHL
B
A
tPZH
tPZL
OE
A
tPHZ
tPLZ
OE
A
tPZH
tPZL
OE
B
tPHZ
tPLZ
OE
B
PARAMETER
6
POST OFFICE BOX 655303
VCC = 5 V,
TA = 25°C
SN54ABT2245
SN74ABT2245
MIN
TYP
MAX
MIN
MAX
MIN
MAX
1
2.5
3.4
1
4
1
3.8
1
3.2
4.2
1
4.6
1
4.5
1
2.2
3.2
1
3.8
1
3.6
1
2.7
3.6
1
4.2
1
4
1
3.3
4.6
1
5.6
1
5.5
1
3.2
4.7
1
6
1
5.7
2
4
5.1
2
5.7
2
5.6
1
2.9
4
1
4.6
1
4.5
1.5
3.6
4.9
1.5
6.3
1.5
6.1
1.5
3.9
5.3
1.5
6.6
1.5
6.3
1.5
3.6
4.7
1.5
5.5
1.5
5.3
1.5
3.3
4.4
1.5
4.9
1.5
4.8
• DALLAS, TEXAS 75265
UNIT
ns
ns
ns
ns
ns
ns
SN54ABT2245, SN74ABT2245
OCTAL TRANSCEIVERS AND LINE/MOS DRIVERS
WITH 3-STATE OUTPUTS
SCBS234D – SEPTEMBER 1992 – REVISED MAY 1997
PARAMETER MEASUREMENT INFORMATION
500 Ω
From Output
Under Test
S1
7V
Open
GND
CL = 50 pF
(see Note A)
500 Ω
TEST
S1
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
7V
Open
3V
LOAD CIRCUIT
Timing Input
1.5 V
0V
tw
tsu
3V
th
3V
1.5 V
Input
1.5 V
Data Input
0V
1.5 V
0V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
3V
3V
1.5 V
Input
Output
Control
1.5 V
0V
1.5 V
1.5 V
VOL
tPLH
tPHL
VOH
Output
1.5 V
1.5 V
VOL
1.5 V
0V
tPLZ
Output
Waveform 1
S1 at 7 V
(see Note B)
VOH
Output
1.5 V
tPZL
tPHL
tPLH
1.5 V
Output
Waveform 2
S1 at Open
(see Note B)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
1.5 V
3.5 V
VOL + 0.3 V
VOL
tPHZ
tPZH
1.5 V
VOH – 0.3 V
VOH
≈0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
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 ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
7
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
5962-9560601Q2A
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59629560601Q2A
SNJ54
ABT2245FK
5962-9560601QRA
ACTIVE
CDIP
J
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-9560601QR
A
SNJ54ABT2245J
5962-9560601QSA
ACTIVE
CFP
W
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-9560601QS
A
SNJ54ABT2245W
SN74ABT2245DBR
ACTIVE
SSOP
DB
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AA245
Samples
SN74ABT2245DBRG4
ACTIVE
SSOP
DB
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AA245
Samples
SN74ABT2245DW
ACTIVE
SOIC
DW
20
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ABT2245
Samples
SN74ABT2245DWR
ACTIVE
SOIC
DW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ABT2245
Samples
SN74ABT2245N
ACTIVE
PDIP
N
20
20
RoHS & Green
NIPDAU
N / A for Pkg Type
-40 to 85
SN74ABT2245N
Samples
SN74ABT2245PW
ACTIVE
TSSOP
PW
20
70
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AA245
Samples
SN74ABT2245PWR
ACTIVE
TSSOP
PW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AA245
Samples
SNJ54ABT2245FK
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59629560601Q2A
SNJ54
ABT2245FK
SNJ54ABT2245J
ACTIVE
CDIP
J
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-9560601QR
A
SNJ54ABT2245J
SNJ54ABT2245W
ACTIVE
CFP
W
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-9560601QS
A
SNJ54ABT2245W
(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
Samples
Samples
Samples
Samples
Samples
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
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)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of