TI SN74BCT640

SN54BCT640, SN74BCT640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS025C – SEPTEMBER 1988 – REVISED APRIL 1994
•
•
•
•
•
SN54BCT640 . . . J OR W PACKAGE
SN74BCT640 . . . DW OR N PACKAGE
(TOP VIEW)
State-of-the-Art BiCMOS Design
Substantially Reduces Standby Current
Outputs Have Undershoot-Protection
Circuitry
Power-Up High-Impedance State
Buffered Control Inputs to Reduce DC
Loading Effects
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
Plastic and Ceramic 300-mil DIPs (J, N)
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
description
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
SN54BCT640 . . . FK PACKAGE
(TOP VIEW)
A2
A1
DIR
VCC
The ′BCT640 bus transceiver is designed for
asynchronous communication between data
buses. These devices transmit data from the A
bus to the B bus or from the B bus to the A bus
depending upon the level at the direction-control
(DIR) input. The output-enable (OE) input can be
used to disable the device so that the buses are
effectively isolated.
A3
A4
A5
A6
A7
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
B1
B2
B3
B4
B5
A8
GND
B8
B7
B6
The SN54BCT640 is characterized for operation
over the full military temperature range of – 55°C
to 125°C. The SN74BCT640 is characterized for
operation from 0°C to 70°C.
OE
•
FUNCTION TABLE
INPUTS
OPERATION
OE
DIR
L
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
2–1
SN54BCT640, SN74BCT640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS025C – SEPTEMBER 1988 – REVISED APRIL 1994
logic symbol†
OE
DIR
19
1
logic diagram (positive logic)
OE
G3
3 EN1 [BA]
3 EN2 [AB]
A1
A2
A3
A4
A5
A6
A7
A8
18
2
1
3
19
1
1
2
17
4
16
5
15
6
14
7
13
8
12
9
11
DIR
1
B1
B2
B3
A1
2
18
B1
B4
B5
B6
B7
B8
To Seven Other Channels
† This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
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: 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, VO . . . . . . . . . . . . . . . – 0.5 V to 5.5 V
Voltage range applied to any output in the high state, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to VCC
Input clamp current, IIK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30 mA
Current into any output in the low state: SN54BCT640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74BCT640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Operating free-air temperature range: SN54BCT640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
SN74BCT640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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.
2–2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN54BCT640, SN74BCT640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS025C – SEPTEMBER 1988 – REVISED APRIL 1994
recommended operating conditions
SN54BCT640
SN74BCT640
MIN
NOM
MAX
MIN
NOM
MAX
4.5
5
5.5
4.5
5
5.5
UNIT
VCC
VIH
Supply voltage
VIL
IIK
Low-level input voltage
0.8
0.8
V
Input clamp current
–18
–18
mA
IOH
High level output current
High-level
A port
–3
–3
B port
–12
–15
IOL
Low level output current
Low-level
A port
20
24
B port
48
64
TA
Operating free-air temperature
High-level input voltage
2
2
– 55
125
V
V
0
70
mA
mA
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
TEST CONDITIONS
VCC = 4.5 V,
A port
5V
VCC = 4
4.5
VOH
B port
A port
VCC = 4.5 V
A or B port
II
IIH‡
IIL‡
IOS§
ICCL
ICCH
Control inputs
A or B port
Control inputs
A or B port
Control inputs
A port
B port
A to B
A to B
IOH = – 3 mA
IOH = – 3 mA
IOH = –12 mA
IOH = –15 mA
3.4
2.5
3.4
2.4
3.3
2.4
3.3
2.4
3.3
2.4
3.3
2
3.2
2
3.1
0.3
0.5
VCC = 4
4.5
5V
IOL = 48 mA
IOL = 64 mA
0.38
0.55
5V
VI = 5
5.5
VCC = 5
5.5
5V
V,
VI = 2
2.7
7V
VCC = 5
5.5
5V
V,
VI = 0
0.5
5V
VCC = 5
5.5
5V
V,
VO = 0
–1.2
2.5
IOL = 20 mA
IOL = 24 mA
5V
VCC = 5
5.5
V,
SN74BCT640
TYP†
MAX
MIN
–1.2
VCC = 4
4.5
5V
VOL
B port
II = –18 mA
IOH = –1 mA
SN54BCT640
TYP†
MAX
MIN
0.35
0.5
0.42
0.55
1
1
0.1
0.1
70
70
20
20
– 0.6
– 0.6
– 0.65
– 0.65
–150
– 60
–150
–100
– 225
–100
– 225
• DALLAS, TEXAS 75265
V
mA
µA
mA
mA
53
84
53
94
mA
23
37
23
41
mA
4
11
mA
ICCZ
VCC = 5.5 V
4
10
† 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.
§ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
POST OFFICE BOX 655303
V
V
– 60
VCC = 5.5 V
VCC = 5.5 V
UNIT
2–3
SN54BCT640, SN74BCT640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS025C – SEPTEMBER 1988 – REVISED APRIL 1994
switching characteristics (see Note 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
CL = 50 pF,
R1 = 500 Ω,
R2 = 500 Ω,
TA = 25°C
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500 Ω,
R2 = 500 Ω,
TA = MIN to MAX†
′BCT640
tPLH
tPHL
A or B
B or A
tPZH
tPZL
OE
A or B
tPHZ
tPLZ
OE
A or B
SN54BCT640
SN74BCT640
MIN
TYP
MAX
MIN
MAX
MIN
MAX
0.5
3.6
5.6
0.5
7
0.5
6.5
0.5
1.9
3.4
0.5
3.8
0.5
3.7
3.1
6.4
8.9
2.6
10.5
2.6
10.2
4.1
6.9
9.5
3.5
12.3
3.5
10.7
1.9
5
7.9
1.4
12.2
1.4
10.2
1.8
4.3
6.8
1.5
8.3
1.5
7.8
† 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
UNIT
• DALLAS, TEXAS 75265
ns
ns
ns
PACKAGE OPTION ADDENDUM
www.ti.com
23-Apr-2008
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
5962-9075201M2A
ACTIVE
LCCC
FK
20
1
TBD
5962-9075201MRA
ACTIVE
CDIP
J
20
1
TBD
5962-9075201MSA
ACTIVE
CFP
W
20
1
SN74BCT640DW
ACTIVE
SOIC
DW
20
25
SN74BCT640DWE4
ACTIVE
SOIC
DW
20
25
SN74BCT640DWG4
ACTIVE
SOIC
DW
20
25
SN74BCT640DWR
ACTIVE
SOIC
DW
SN74BCT640DWRE4
ACTIVE
SOIC
SN74BCT640DWRG4
ACTIVE
SN74BCT640N
Lead/Ball Finish
MSL Peak Temp (3)
POST-PLATE N / A for Pkg Type
A42 SNPB
N / A for Pkg Type
TBD
Call TI
N / A for Pkg Type
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
20
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
DW
20
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SOIC
DW
20
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
ACTIVE
PDIP
N
20
20
Pb-Free
(RoHS)
CU NIPDAU
N / A for Pkg Type
SN74BCT640NE4
ACTIVE
PDIP
N
20
20
Pb-Free
(RoHS)
CU NIPDAU
N / A for Pkg Type
SN74BCT640NSR
ACTIVE
SO
NS
20
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74BCT640NSRE4
ACTIVE
SO
NS
20
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74BCT640NSRG4
ACTIVE
SO
NS
20
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SNJ54BCT640FK
ACTIVE
LCCC
FK
20
1
TBD
SNJ54BCT640J
ACTIVE
CDIP
J
20
1
TBD
A42 SNPB
N / A for Pkg Type
SNJ54BCT640W
ACTIVE
CFP
W
20
1
TBD
Call TI
N / A for Pkg Type
POST-PLATE N / A for Pkg Type
(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)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
23-Apr-2008
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
11-Mar-2008
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
SN74BCT640DWR
Package Package Pins
Type Drawing
SOIC
DW
20
SPQ
Reel
Reel
Diameter Width
(mm) W1 (mm)
2000
330.0
24.4
Pack Materials-Page 1
A0 (mm)
B0 (mm)
K0 (mm)
P1
(mm)
W
Pin1
(mm) Quadrant
10.8
13.0
2.7
12.0
24.0
Q1
PACKAGE MATERIALS INFORMATION
www.ti.com
11-Mar-2008
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
SN74BCT640DWR
SOIC
DW
20
2000
346.0
346.0
41.0
Pack Materials-Page 2
MECHANICAL DATA
MLCC006B – OCTOBER 1996
FK (S-CQCC-N**)
LEADLESS CERAMIC CHIP CARRIER
28 TERMINAL SHOWN
18
17
16
15
14
13
NO. OF
TERMINALS
**
12
19
11
20
10
A
B
MIN
MAX
MIN
MAX
20
0.342
(8,69)
0.358
(9,09)
0.307
(7,80)
0.358
(9,09)
28
0.442
(11,23)
0.458
(11,63)
0.406
(10,31)
0.458
(11,63)
21
9
22
8
44
0.640
(16,26)
0.660
(16,76)
0.495
(12,58)
0.560
(14,22)
23
7
52
0.739
(18,78)
0.761
(19,32)
0.495
(12,58)
0.560
(14,22)
24
6
68
0.938
(23,83)
0.962
(24,43)
0.850
(21,6)
0.858
(21,8)
84
1.141
(28,99)
1.165
(29,59)
1.047
(26,6)
1.063
(27,0)
B SQ
A SQ
25
5
26
27
28
1
2
3
4
0.080 (2,03)
0.064 (1,63)
0.020 (0,51)
0.010 (0,25)
0.020 (0,51)
0.010 (0,25)
0.055 (1,40)
0.045 (1,14)
0.045 (1,14)
0.035 (0,89)
0.045 (1,14)
0.035 (0,89)
0.028 (0,71)
0.022 (0,54)
0.050 (1,27)
4040140 / D 10/96
NOTES: A.
B.
C.
D.
E.
All linear dimensions are in inches (millimeters).
This drawing is subject to change without notice.
This package can be hermetically sealed with a metal lid.
The terminals are gold plated.
Falls within JEDEC MS-004
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
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