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SN54BCT543 Datasheet Preview

SN54BCT543 Datasheet

Octal Registered Transceivers

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SN54BCT543, SN74BCT543
OCTAL REGISTERED TRANSCEIVERS
WITH 3ĆSTATE OUTPUTS
SCBS026C − NOVEMBER 1988 − REVISED APRIL 1994
State-of-the-Art BiCMOS Design
Significantly Reduces ICCZ
3-State True Outputs
Back-to-Back Registers for Storage
ESD Protection Exceeds 2000 V
Per MIL-STD-883C, Method 3015
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
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.
SN54BCT543 . . . JT OR W PACKAGE
SN74BCT543 . . . DW OR NT PACKAGE
(TOP VIEW)
LEBA 1
OEBA 2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
A8 10
CEAB 11
GND 12
24 VCC
23 CEBA
22 B1
21 B2
20 B3
19 B4
18 B5
17 B6
16 B7
15 B8
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
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.
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.
4 3 2 1 28 27 26
A2 5
25 B2
A3 6
24 B3
A4 7
23 B4
NC 8
22 NC
A5 9
21 B5
A6 10
20 B6
A7 11
19 B7
12 13 14 15 16 17 18
NC − No internal connection
FUNCTION TABLE†
INPUTS
CEAB LEAB OEAB A
OUTPUT
B
H
X
X
X
Z
X
X
H
X
Z
L
H
L
X
B0‡
L
L
L
L
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.
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.
Copyright 1994, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
2−1




etcTI

SN54BCT543 Datasheet Preview

SN54BCT543 Datasheet

Octal Registered Transceivers

No Preview Available !

SN54BCT543, SN74BCT543
OCTAL REGISTERED TRANSCEIVERS
WITH 3ĆSTATE OUTPUTS
SCBS026C − NOVEMBER 1988 − REVISED APRIL 1994
logic symbol
2
OEBA
23
CEBA
1
LEBA
13
OEAB
11
CEAB
14
LEAB
3
A1
4
A2
5
A3
6
A4
7
A5
8
A6
9
A7
10
A8
1EN3
G1
1C5
2EN4
G2
2C6
31
5D
6D 1
4
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
22
B1
21
B2
20
B3
19
B4
18
B5
17
B6
16
B7
15
B8
logic diagram (positive logic)
OEBA 2
23
CEBA
1
LEBA
13
OEAB
11
CEAB
14
LEAB
A1 3
C1
1D
C1
1D
22
B1
Pin numbers shown are for the DW, JT, NT, and W packages.
To Seven Other Channels
2−2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443


Part Number SN54BCT543
Description Octal Registered Transceivers
Maker etcTI
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SN54BCT543 Datasheet PDF






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