SN74BCT29863B [TI]
9-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS; 具有三态输出的9位总线收发器
| 型号： | SN74BCT29863B |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 9-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| 文件： | 总5页 (文件大小：80K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54BCT29863B, SN74BCT29863B
9-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS015D – NOVEMBER 1988 – REVISED NOVEMBER 1993
SN54BCT29863B . . . JT OR W PACKAGE
SN74BCT29863B . . . DW OR NT PACKAGE
(TOP VIEW)
• BiCMOS Design Substantially Reduces I
CCZ
• Functionally Equivalent to ′ALS29863 and
AMD Am29863A
• Power-Up High-Impedance State
OEBA1
A1
V
CC
1
2
3
4
5
6
7
8
9
24
23
22
21
20
19
B1
B2
B3
B4
B5
• ESD Protection Exceeds 2000 V Per
A2
A3
A4
A5
A6
A7
A8
MIL-STD-883C, Method 3015
• Package Options Include Plastic
Small-Outline Packages (DW), Ceramic
Chip Carriers (FK) and Flatpacks (W), and
Standard Plastic and Ceramic 300-mil DIPs
(JT, NT)
18 B6
17 B7
16 B8
A9 10
OEBA2 11
GND 12
15 B9
description
14 OEAB2
13 OEAB1
These 9-bit transceivers are designed for
asynchronous communication between data
buses. The control-function implementation
allows for maximum flexibility in timing.
SN54BCT29863B . . . FK PACKAGE
(TOP VIEW)
These devices allow data transmission from the A
bus to the B bus or from the B bus to the A bus,
depending upon the logic levels at the
output-enable (OEBA and OEAB) inputs.
4
3
2 1 28 27 26
5
6
7
8
9
25
24
23
22
21
20
19
A3
A4
A5
NC
A6
A7
A8
B3
B4
B5
NC
B6
B7
B8
The outputs are in the high-impedance state
during power-up and power-down conditions. The
outputs remain in the high-impedance state while
the device is powered down.
The SN54BCT29863B is characterized for
operation over the full military temperature range
of –55°C to 125°C. The SN74BCT29863B is
characterized for operation from 0°C to 70°C.
10
11
12 13 14 15 16 17 18
NC –Nointernalconnection
FUNCTION TABLE
INPUTS
OPERATION
Latch A and B
A to B
OEAB1 OEAB2 OEBA1 OEBA2
L
L
L
L
L
H
X
L
L
X
H
L
L
L
H
X
H
H
X
X
X
H
X
X
H
H
B to A
L
L
H
X
X
H
X
H
H
X
Isolation
Copyright 1993, 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
SN54BCT29863B, SN74BCT29863B
9-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS015D – NOVEMBER 1988 – REVISED NOVEMBER 1993
†
logic symbol
logic diagram (positive logic)
13
1
1
&
OEBA1
OEBA2
OEAB1
OEBA1
14
11
11
13
14
EN1
EN2
OEAB2
OEBA2
OEAB1
OEAB2
2
23
&
A1
B1
2
23
A1
1
B1
2
3
4
5
6
7
22
21
20
19
18
A2
A3
A4
A5
A6
B2
B3
B4
B5
B6
To Eight Other Channels
8
9
17
16
A7
A8
B7
B8
10
15
A9
B9
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
Pin numbers shown are for the DW, JT, NT, and W packages.
‡
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 (I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 5.5 V
Input voltage range (excluding I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
CC
Input clamp current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30 mA
Current into any output in the low state: SN54BCT29863B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 mA
SN74BCT29863B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
Operating free-air temperature range: SN54BCT29863B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C
SN74BCT29863B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 negative input voltage ratings may be exceeded if the input current rating is observed.
2–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54BCT29863B, SN74BCT29863B
9-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS015D – NOVEMBER 1988 – REVISED NOVEMBER 1993
recommended operating conditions
SN54BCT29863B
MIN NOM MAX
SN74BCT29863B
MIN NOM MAX
UNIT
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
–15
24
0.8
–18
–24
48
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
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54BCT29863B
SN74BCT29863B
PARAMETER
TEST CONDITIONS
I = –18 mA
UNIT
†
†
MIN TYP
MAX
MIN TYP
MAX
V
V
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 4.5 V,
= 4.5 V
= 4.75 V,
= 4.5 V
= 5.5 V,
= 5.5 V,
–1.2
–1.2
V
IK
I
I
I
I
I
I
= –15 mA
= –24 mA
= –3 mA
= 24 mA
= 48 mA
2.4
3.3
2.4
2
3.3
3.1
OH
OH
OH
OL
OL
V
OH
2.7
0.35
0.5
V
OL
V
0.35
0.5
0.1
I
I
V = 5.5 V
I
0.1
20
mA
µA
I
Control inputs
20
V = 2.7 V
I
IH
‡
A or B port
20
20
Control inputs
–0.2
–0.2
0.1
–0.2
–0.2
0.1
I
V
= 5.5 V,
V = 0.5 V
mA
IL
CC
I
‡
A or B port
§
I
I
V
V
= 0,
V
V
= 2.7 V
= 0
mA
mA
IO(off)
CC
O
¶
= 5.5 V,
–75
–250
30
–75
–250
30
OS
CC
O
Outputs high
Outputs low
18
30
6.5
6
18
30
6.5
6
I
V
CC
= 5.5 V
45
45
mA
CC
Outputs disabled
12
12
C
C
V
V
= 5 V,
= 5 V,
V = 2.5 V or 0.5 V
I
pF
pF
i
CC
V = 2.5 V or 0.5 V
I
8
8
io
CC
†
‡
§
¶
All typical values are at V
For I/O ports, the parameters I and I include the off-state output current.
= 5 V, T = 25°C.
A
IH IL
CC
I
= Power-off bus-leakage current
O(off)
Not more than one output should be shorted at a time and duration of the short circuit should not exceed one second.
2–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54BCT29863B, SN74BCT29863B
9-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS015D – NOVEMBER 1988 – REVISED NOVEMBER 1993
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,
FROM
(INPUT)
TO
(OUTPUT)
R2 = 500 Ω,
†
T = MIN to MAX
A
PARAMETER
UNIT
= 25°C
′BCT29863B
SN54BCT29863B SN74BCT29863B
MIN
TYP
3
MAX
4.5
6.8
7
MIN
1
MAX
5.4
MIN
1
MAX
5
t
t
t
t
t
t
1
2
PLH
PHL
PZH
PZL
PHZ
PLZ
A or B
B or A
A or B
A or B
ns
ns
ns
4.8
5.1
8.4
5
2
7.9
2
7.5
8.4
12.6
8.8
8.1
2
2
9.2
2
OEAB or OEBA
OEAB or OEBA
4.5
2
10.8
7.2
6.7
4.5
2
13.6
9.6
4.5
2
1.7
4.7
1.7
9.1
1.7
†
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.
2–4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
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
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 1998, Texas Instruments Incorporated
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