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SN54BCT29862B, SN74BCT29862B
10-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS014B – NOVEMBER 1988 – REVISED NOVEMBER 1993
•
•
•
•
•
BiCMOS Design Substantially Reduces
Standby Current
Functionally Equivalent to
′ALS29862
and
AMD Am29862A
Power-Up High-Impedance State
ESD Protection Exceeds 2000 V
Per Mil-STD-883C, Method 3015
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK) and Flatpacks (W), and
Standard Plastic and Ceramic 300-mil DIPs
(JT, NT)
SN54BCT29862B . . . JT OR W PACKAGE
SN74BCT29862B . . . DW OR NT PACKAGE
(TOP VIEW)
description
These 10-bit bus transceivers are designed for
asynchronous communication between data
buses. The control-function implementation
allows for maximum flexibility in timing.
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.
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 SN54BCT29862B is characterized for
operation over the full military temperature range
of – 55°C to 125°C. The SN74BCT29862B is
characterized for operation from 0°C to 70°C.
OEBA
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
GND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
V
CC
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
OEAB
SN54BCT29862B . . . FK PACKAGE
(TOP VIEW)
A3
A4
A5
NC
A6
A7
A8
5
6
7
8
9
A2
A1
OEBA
NC
V
CC
B1
B2
4
3 2 1 28 27 26
25
24
23
22
21
20
10
11
19
12 13 14 15 16 17 18
B3
B4
B5
NC
B6
B7
B8
NC - No internal connection
FUNCTION TABLE
INPUTS
OEAB
L
H
H
L
OEBA
H
L
H
L
OPERATION
A to B
B to A
Isolation
Latch A and B
(A = B)
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
A9
A10
GND
NC
OEAB
B10
B9
Copyright
©
1993, Texas Instruments Incorporated
1
SN54BCT29862B, SN74BCT29862B
10-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS014B – NOVEMBER 1988 – REVISED NOVEMBER 1993
logic symbol
†
OEBA
OEAB
A1
1
13
2
EN1
EN2
1
2
A2
A3
A4
A5
A6
A7
A8
A9
A10
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
B2
B3
B4
B5
B6
B7
B8
B9
B10
23
B1
logic diagram (positive logic)
OEAB
A1
13
2
1
23
OEBA
B1
To Nine Other Channels
† 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, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Input voltage (I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 5.5 V
Input voltage (excluding I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Voltage 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: SN54BCT29862B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 mA
SN74BCT29862B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
Operating free-air temperature range: SN54BCT29862B . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
SN74BCT29862B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 negative voltage rating may be exceeded if the input clamp current rating is observed.
recommended operating conditions
SN54BCT29862B
MIN
VCC
VIH
VIL
IIK
IOH
IOL
TA
Supply voltage
High-level input voltage
Low-level input voltage
Input clamp current
High-level output current
Low-level output current
Operating free-air temperature
– 55
4.5
2
0.8
– 18
– 12
24
125
0
NOM
5
MAX
5.5
SN74BCT29862B
MIN
4.5
2
0.8
– 18
– 24
48
70
NOM
5
MAX
5.5
UNIT
V
V
V
mA
mA
mA
°C
2
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
SN54BCT29862B, SN74BCT29862B
10-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS014B – NOVEMBER 1988 – REVISED NOVEMBER 1993
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
VOH
VOL
II
IIH
IIL
IIO(off)§
IOS¶
ICC
Ci
Control inputs
A or B port‡
Control inputs
A or B port‡
TEST CONDITIONS
VCC = 4.5 V,
VCC = 4 5 V
4.5
VCC = 4 5 V
4.5
VCC = 5.5 V,
VCC = 5 5 V
5.5 V,
VCC = 5 5 V
5.5 V,
VCC = 0,
VCC = 5.5 V,
VCC = 5.5 V
VCC = 5 V,
VCC = 5 V,
II = – 18 mA
IOH = – 12 mA
IOH = – 24 mA
IOL = 24 mA
IOL = 48 mA
VI = 5.5 V
VI = 2 7 V
2.7
VI = 0 5 V
0.5
VO = 2.7 V
VO = 0
Outputs high
Outputs low
Outputs disabled
VI = 0.5 V or 2.5 V
VI = 0.5 V or 2.5 V
SN54BCT29862B
MIN TYP†
MAX
– 1.2
2.4
3.3
0.35
0.5
0.35
0.1
20
70
– 0.2
– 0.2
0.1
– 75
20
29
6.5
6
– 250
32
46
11
– 75
20
29
6.5
6
8
0.5
0.1
20
70
– 0.2
– 0.2
0.1
– 250
32
46
11
pF
pF
mA
2.4
2
3.3
3.1
SN74BCT29862B
MIN TYP†
MAX
– 1.2
UNIT
V
V
V
mA
µA
mA
mA
mA
Co
8
† All typical values are at VCC = 5 V, TA = 25°C.
‡ For I/O ports, the parameters IIH and IIL include the off-state output current.
§ IO(off) = Power-off bus leakage current
¶ Not more than one output should be shorted at a time and duration of the short circuit should not exceed one second.
switching characteristics
(see Note 2)
VCC = 5 V,
CL = 50 pF,
R1 = 500
Ω,
R2 = 500
Ω,
TA = 25°C
′BCT29862B
MIN
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
A or B
B or A
A or B
A or B
1
0.5
2.5
4.5
2.3
2.3
TYP
3.6
2.4
5.3
8
4.8
5.2
MAX
5.2
4.6
7.2
10.6
7.6
7
MIN
1
0.5
2.5
4.5
2.3
2.3
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
Ω,
R2 = 500
Ω
,
TA = MIN to MAX#
SN54BCT29862B SN74BCT29862B
MAX
6.5
7.5
9.1
13.9
8.4
9.1
MIN
1
0.5
2.5
4.5
2.3
2.3
MAX
6.1
4.8
8.4
12.5
8.4
8.2
ns
ns
ns
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
UNIT
OE
OE
# For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating condtions.
NOTE 2: Load circuits and voltage waveforms are shown in Section 1.
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
3
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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