SN74BCT543DW [TI]
OCTAL REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS; 八路挂号收发器3态输出
| 型号： | SN74BCT543DW |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | OCTAL REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS |
| 文件： | 总7页 (文件大小：103K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54BCT543, SN74BCT543
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS026C – NOVEMBER 1988 – REVISED APRIL 1994
SN54BCT543 . . . JT OR W PACKAGE
SN74BCT543 . . . DW OR NT PACKAGE
(TOP VIEW)
• State-of-the-Art BiCMOS Design
Significantly Reduces I
CCZ
• 3-State True Outputs
• Back-to-Back Registers for Storage
LEBA
OEBA
A1
1
2
3
4
5
6
7
8
9
10
24
V
CC
23 CEBA
22 B1
21 B2
20 B3
19 B4
18 B5
17 B6
16 B7
• ESD Protection Exceeds 2000 V
Per MIL-STD-883C, Method 3015
A2
A3
A4
A5
A6
A7
A8
• Package Options Include Plastic
Small-Outline Packages (DW), Ceramic
Chip Carriers (FK) and Flatpacks (W), and
Plastic and Ceramic 300-mil DIPs (JT, NT)
description
15
B8
The ′BCT543 octal transceiver contains 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.
CEAB 11
GND 12
14 LEAB
13 OEAB
SN54BCT543 . . . FK PACKAGE
(TOP VIEW)
The A-to-B enable (CEAB) input must be low in
order 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
transitionofLEABputstheAlatchesinthestorage
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.
4
3
2
1
28 27 26
25
5
A2
A3
A4
NC
A5
A6
A7
B2
B3
B4
6
24
23
7
8
22 NC
21 B5
20 B6
19 B7
9
10
11
12 13 14 15 16 17 18
The SN54BCT543 is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74BCT543 is characterized for
operation from 0°C to 70°C.
NC – No internal connection
†
FUNCTION TABLE
INPUTS
OUTPUT
B
CEAB
LEAB
OEAB
A
X
X
X
L
H
X
L
L
L
X
X
H
L
X
H
L
Z
Z
‡
B
0
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.
Copyright 1994, 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.
2–1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54BCT543, SN74BCT543
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS026C – NOVEMBER 1988 – REVISED APRIL 1994
†
logic symbol
2
OEBA
23
1EN3
G1
CEBA
1
1C5
2EN4
G2
LEBA
13
OEAB
11
CEAB
14
2C6
LEAB
3
22
A1
5D
4
B1
3
1
1
6D
21
20
19
4
B2
B3
B4
A2
5
A3
6
A4
7
18
17
16
A5
B5
B6
B7
8
A6
9
A7
15
10
B8
A8
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
2
OEBA
23
CEBA
1
LEBA
13
OEAB
11
CEAB
14
LEAB
C1
1D
3
A1
22
B1
C1
1D
To Seven Other Channels
Pin numbers shown are for the DW, JT, NT, and W packages.
2–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54BCT543, SN74BCT543
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS026C – NOVEMBER 1988 – REVISED APRIL 1994
†
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: Control inputs (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
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
Input clamp current, I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30 mA
IK
Current into any output in the low state: SN54BCT543 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74BCT543 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Operating free-air temperature range: SN54BCT543 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
SN74BCT543 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 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.
NOTE 1: The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
recommended operating conditions
SN54BCT543
MIN NOM MAX
SN74BCT543
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
–12
48
0.8
–18
–15
64
V
I
I
I
mA
mA
mA
°C
IK
High-level output current
Low-level output current
Operating free-air temperature
OH
OL
T
A
–55
125
0
70
2–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54BCT543, SN74BCT543
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS026C – NOVEMBER 1988 – REVISED APRIL 1994
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54BCT543
SN74BCT543
PARAMETER
TEST CONDITIONS
UNIT
†
†
MIN TYP
MAX
MIN TYP
MAX
V
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
= –3 mA
= –12 mA
= –15 mA
= 48 mA
= 64 mA
2.4
2
3.3
3.2
2.4
2
3.3
3.1
OH
OH
OH
OL
OL
V
OH
CC
0.38
0.55
V
V
CC
V
CC
V
CC
= 4.5 V
= 5.5 V,
= 5.5 V,
V
OL
‡
0.42
0.55
0.4
V = 5.5 V
I
0.4
70
mA
µA
I
I
A or B port
Control input
A or B port
Control input
70
V = 2.7 V
I
I
IH
20
20
–0.65
–0.6
–225
71
–0.65
–0.6
–225
71
‡
V
CC
= 5.5 V,
V = 0.5 V
I
mA
I
IL
§
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 5.5 V,
= 5.5 V
= 5.5 V
= 5.5 V
= 5 V,
V
O
= 0
–100
–100
mA
mA
mA
mA
pF
I
I
I
I
OS
A or B port
45
5
45
5
CCL
CCH
CCZ
A or B port
A or B port
Control input
A or B port
8
8
9
15
9
15
C
C
V = 2.5 V or 0.5 V
I
6
6
i
= 5 V,
V
O
= 2.5 V or 0.5 V
16
16
pF
io
†
‡
§
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
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
V
T
= 5 V,
= 25°C
CC
A
SN54BCT543 SN74BCT543
UNIT
MIN
7
MAX
MIN
8
MAX
MIN
7
MAX
t
w
t
su
t
h
Pulse duration, LEAB or LEBA low
Setup time, data before LEAB or LEBA↑
Hold time, data after LEAB or LEBA↑
ns
ns
ns
High or low
High or low
4.5
1.5
5.5
1.5
4.5
1.5
2–4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54BCT543, SN74BCT543
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS026C – NOVEMBER 1988 – REVISED APRIL 1994
switching characteristics (see Note 2)
V
C
= 5 V,
= 50 pF,
V
= 4.5 V to 5.5 V,
C = 50 pF,
L
CC
L
CC
R1 = 500 Ω,
R2 = 500 Ω,
T
A
R1 = 500 Ω,
R2 = 500 Ω,
†
T = MIN to MAX
A
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
UNIT
= 25°C
′BCT543
TYP
5.7
SN54BCT543 SN74BCT543
MIN
2
MAX
7.5
MIN
2
MAX
9.9
MIN
2
MAX
8.8
t
t
t
t
t
t
t
t
t
t
t
t
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
PZH
PZL
PHZ
PLZ
A or B
B or A
A or B
A or B
A or B
A or B
A or B
ns
ns
ns
ns
ns
ns
2
6.3
8.2
2
9.7
2
9.6
2
8.2
10.3
10.6
8.6
2
13.9
13.2
11.4
12.8
8.8
2
12.9
12.7
10.7
12.3
8.1
LE
OE
OE
CE
CE
2
8.5
2
2
1
6.8
1
1
1
8.7
10.8
7.2
1
1
1
5.5
1
1
1
4.7
6.4
1
8.1
1
7.2
1
7.6
9.8
1
12.8
13.8
9.3
1
12
1
9.5
11.6
7.5
1
1
13.5
8.5
1
5.8
1
1
1
4.8
6.7
1
8.4
1
7.6
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 2: Load circuits and voltage waveforms are shown in Section 1.
2–5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2–6
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
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Copyright 1998, Texas Instruments Incorporated
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