SN54ABT543A, SN74ABT543A
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS157F – JANUARY 1991 – REVISED MAY 1997
D
D
D
D
D
State-of-the-Art EPIC-ΙΙB BiCMOS Design
Significantly Reduces Power Dissipation
ESD Protection Exceeds 2000 V Per
MIL-STD-883, 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-Drive Outputs (–32-mA IOH, 64-mA IOL)
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK),
Ceramic Flat (W) Package, and Plastic (NT)
and Ceramic (JT) DIPs
SN54ABT543A . . . JT OR W PACKAGE
SN74ABT543A . . . DB, DW, NT, OR PW PACKAGE
(TOP VIEW)
LEBA
OEBA
A1
A2
A3
A4
A5
A6
A7
A8
CEAB
GND
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
VCC
CEBA
B1
B2
B3
B4
B5
B6
B7
B8
LEAB
OEAB
description
The A-to-B enable (CEAB) input must be low to
enter data from A or to output data from B. If CEAB
is low and LEAB is low, the A-to-B latches are
transparent; a subsequent low-to-high transition
of LEAB puts the A latches in the storage mode.
With CEAB and OEAB both low, the 3-state
B outputs are active and reflect the data present
at the output of the A latches. Data flow from B to
A is similar, but requires using the CEBA, LEBA,
and OEBA inputs.
5
3 2 1 28 27 26
25
6
24
7
23
8
22
9
21
10
20
4
A2
A3
A4
NC
A5
A6
A7
CEBA
B1
A1
OEBA
LEBA
NC
VCC
SN54ABT543A . . . FK PACKAGE
(TOP VIEW)
19
11
12 13 14 15 16 17 18
B2
B3
B4
NC
B5
B6
B7
A8
CEAB
GND
NC
OEAB
LEAB
B8
The ’ABT543A octal transceivers contain two sets
of D-type latches for temporary storage of data
flowing in either direction. Separate latch-enable
(LEAB or LEBA) and output-enable (OEAB or
OEBA) inputs are provided for each register to
permit independent control in either direction of
data flow.
NC – No internal connection
To ensure the high-impedance state during power
up or power down, OE should be tied to VCC
through a pullup resistor; the minimum value of
the resistor is determined by the current-sinking
capability of the driver.
The SN54ABT543A is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74ABT543A is characterized for operation from –40°C to 85°C.
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
SN54ABT543A, SN74ABT543A
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS157F – JANUARY 1991 – REVISED MAY 1997
FUNCTION TABLE†
INPUTS
OEAB
A
OUTPUT
B
CEAB
LEAB
H
X
X
X
Z
X
X
H
X
Z
L
H
L
X
L
L
L
L
B0‡
L
L
L
L
H
H
† A-to-B data flow is shown; B-to-A flow control is the
same except that it uses CEBA, LEBA, and OEBA.
‡ Output level before the indicated steady-state
input conditions were established
logic symbol§
OEBA
CEBA
LEBA
2
1EN3
23
1
1C5
13
OEAB
11
CEAB
14
LEAB
A1
A2
A3
A4
A5
A6
A7
A8
G1
2EN4
G2
2C6
3
4
3
1
5D
6D
1
4
21
5
20
6
19
7
18
8
17
9
16
10
15
§ This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the DB, DW, JT, NT, PW, and W packages.
2
22
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
B1
B2
B3
B4
B5
B6
B7
B8
SN54ABT543A, SN74ABT543A
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS157F – JANUARY 1991 – REVISED MAY 1997
logic diagram (positive logic)
OEBA
CEBA
LEBA
OEAB
CEAB
LEAB
A1
2
23
1
13
11
14
C1
3
1D
22
B1
C1
1D
To Seven Other Channels
Pin numbers shown are for the DB, DW, JT, NT, PW, and W packages.
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: SN54ABT543A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74ABT543A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104°C/W
DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81°C/W
NT package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120°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.
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3
SN54ABT543A, SN74ABT543A
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS157F – JANUARY 1991 – REVISED MAY 1997
recommended operating conditions (see Note 3)
SN54ABT543A
VCC
VIH
Supply voltage
VIL
VI
Low-level input voltage
IOH
IOL
High-level output current
∆t/∆v
Input transition rise or fall rate
High-level input voltage
SN74ABT543A
MIN
MAX
MIN
MAX
4.5
5.5
4.5
5.5
2
2
0.8
Input voltage
0
Low-level output current
Outputs enabled
TA
Operating free-air temperature
NOTE 3: Unused pins (input or I/O) must be held high or low to prevent them from floating.
–55
0
V
V
0.8
VCC
–24
UNIT
VCC
–32
V
V
mA
48
64
mA
5
5
ns/V
85
°C
125
–40
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
VOH
TEST CONDITIONS
VCC = 4.5 V,
VCC = 4.5 V,
II = –18 mA
IOH = –3 mA
VCC = 5 V,
VCC = 4
4.5
5V
VOL
VCC = 4
4.5
5V
MIN
MIN
–1.2
MAX
SN74ABT543A
MIN
–1.2
2.5
IOH = –3 mA
IOH = –24 mA
3
3
3
2
2
IOH = –32 mA
IOL = 48 mA
2*
Control inputs
0.55
0.55*
0.55
±1
±1
VO = 2.7 V
VO = 0.5 V
±100
10§
±100
10§
–10§
–10§
–10§
µA
VCC = 0,
VCC = 5.5 V,
VO = 5.5 V
VI or VO ≤ 4.5 V
±100
±100
µA
50
µA
VCC = 5.5 V,
VO = 2.5 V
Outputs high
–180
mA
Ioff
VCC = 5.5 V,
IO = 0,
VI = VCC or GND
Outputs high
50
–50*
–100
–180*
Ci
Control inputs
Cio
A or B ports
50
–50
–200
–50
µA
µA
1
250*
350
250
µA
Outputs low
24
30*
34
30
mA
Outputs disabled
0.5
250*
350
250
µA
1.5
1.5
1.5
mA
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
∆ICC#
mV
±1
VCC = 5.5 V,
VCC = 5.5 V,
A or B ports
V
±100
10§
IOZH‡
IOZL‡
IO¶
V
2
0.55
IOL = 64 mA
VI = VCC or GND
A or B ports
UNIT
V
100
ICEX
VI = 2.5 V or 0.5 V
VO = 2.5 V or 0.5 V
4
pF
7
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 data sheet limit may vary among suppliers.
¶ 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.
4
MAX
–1.2
2.5
VCC = 5
5.5
5V
V,
ICC
SN54ABT543A
2.5
Vhys
II
TA = 25°C
TYP†
MAX
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN54ABT543A, SN74ABT543A
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS157F – JANUARY 1991 – REVISED MAY 1997
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
SN54ABT543A
VCC = 5 V,
TA = 25°C
MIN
tw
Pulse duration, LEAB or LEBA low
Data before LEAB or LEBA↑
tsu
Setup time
Data before CEAB or CEBA↑
th
Hold time
MIN
MAX
UNIT
MAX
3.5
3.5
High
2.5
2.5
Low
3
3
High
2.5
2.5
Low
3
3
Data after LEAB or LEBA↑
1
1
Data after CEAB or CEBA↑
1
1
ns
ns
ns
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
SN74ABT543A
VCC = 5 V,
TA = 25°C
MIN
tw
Pulse duration, LEAB or LEBA low
Data before LEAB or LEBA↑
tsu
Setup time
Data before CEAB or CEBA↑
th
Hold time
MIN
3.5
High
3.5
3.5
Low
3
3
High
3.5
3.5
3
3
Data after LEAB or LEBA↑
0.5
0.5
Data after CEAB or CEBA↑
0.5
0.5
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
UNIT
MAX
3.5
Low
MAX
ns
ns
ns
5
SN54ABT543A, SN74ABT543A
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS157F – JANUARY 1991 – 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)
SN54ABT543A
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
tPLH
tPHL
A or B
B or A
tPLH
tPHL
LEBA or LEAB
A or B
tPZH
tPZL
OEBA or OEAB
A or B
tPHZ
tPLZ
OEBA or OEAB
A or B
tPZH
tPZL
CEBA or CEAB
A or B
tPHZ
tPLZ
CEBA or CEAB
A or B
VCC = 5 V,
TA = 25°C
MIN
MAX
MIN
1.6†
TYP
MAX
4.4
4.4
1.6†
5.5
1.6
1.6†
4.4
5.1
6.2
4.1
5.1
1.6
1.6†
1.6
4.6
5.4
1.6
6.4
1.4
3.9
4.1
1.4
5.1
2
2.5†
5
4.9
5.8
5.9
5.8
2
2.5†
2.5†
5.5
6.1
2.5†
7.6
1.4
3.9
4.7
1.4
5.6
2
3.2†
5
5.7
6.2
5.9
6.5
2
3.2†
2.5†
5.5
6.7
2.5†
7.8
6.6
6.9
7.3
UNIT
ns
ns
ns
ns
ns
ns
† This data sheet limit may vary among suppliers.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figure 1)
SN74ABT543A
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
tPLH
tPHL
A or B
B or A
tPLH
tPHL
LEBA or LEAB
A or B
tPZH
tPZL
OEBA or OEAB
A or B
tPHZ
tPLZ
OEBA or OEAB
A or B
tPZH
tPZL
CEBA or CEAB
A or B
tPHZ
tPLZ
CEBA or CEAB
A or B
† This data sheet limit may vary among suppliers.
6
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
VCC = 5 V,
TA = 25°C
MIN
MAX
MIN
1.8†
TYP
MAX
4.4
5.9
1.8†
6.9
1.9
1.5†
4.4
5.9
6.9
4.1
5.6
1.9
1.5†
2.1
4.6
6.1
2.1
7.1
1.4
3.9
5.4
1.4
6.4
2.5
2.5†
5
6.5
7.5
5.9
7.4
2.5
2.5†
2.5†
5.5
7
2.5†
8
1.4
3.9
5.4
1.4
6.4
2.5
2.9†
5
6.5
7.5
5.9
7.4
2.5
2.9†
2.4†
5.5
7
2.4†
8
6.6
8.4
8.4
UNIT
ns
ns
ns
ns
ns
ns
SN54ABT543A, SN74ABT543A
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS157F – JANUARY 1991 – REVISED MAY 1997
PARAMETER MEASUREMENT INFORMATION
7V
S1
500 Ω
From Output
Under Test
Open
GND
CL = 50 pF
(see Note A)
500 Ω
TEST
S1
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
7V
Open
LOAD CIRCUIT
3V
Timing Input
1.5 V
0V
tw
tsu
3V
Input
1.5 V
th
3V
1.5 V
Data Input
1.5 V
1.5 V
0V
0V
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
3V
1.5 V
Input
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
3V
Output
Control
1.5 V
Output
Waveform 2
S1 at Open
(see Note B)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
1.5 V
tPZH
3.5 V
VOL + 0.3 V
VOL
tPHZ
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
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PACKAGE OPTION ADDENDUM
www.ti.com
10-Jun-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)
5962-9231402Q3A
ACTIVE
LCCC
FK
28
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59629231402Q3A
SNJ54
ABT543AFK
SN74ABT543ADBR
ACTIVE
SSOP
DB
24
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AB543A
Samples
SN74ABT543ADBRG4
ACTIVE
SSOP
DB
24
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AB543A
Samples
SN74ABT543ADW
ACTIVE
SOIC
DW
24
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ABT543A
Samples
SN74ABT543ADWR
ACTIVE
SOIC
DW
24
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ABT543A
Samples
SN74ABT543APW
ACTIVE
TSSOP
PW
24
60
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AB543A
Samples
SN74ABT543APWR
ACTIVE
TSSOP
PW
24
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AB543A
Samples
SNJ54ABT543AFK
ACTIVE
LCCC
FK
28
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59629231402Q3A
SNJ54
ABT543AFK
(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)
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