SN74BCT640DWG4 [TI]
OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS; 八路总线收发器与3态输出
| 型号： | SN74BCT640DWG4 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| 文件： | 总15页 (文件大小：621K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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
DIR
A1
V
CC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
• Power-Up High-Impedance State
OE
B1
B2
A2
A3
• Buffered Control Inputs to Reduce DC
Loading Effects
A4
A5
16 B3
15 B4
• ESD Protection Exceeds 2000 V
Per MIL-STD-883C, Method 3015
14
13
12
11
A6
A7
A8
GND
B5
B6
B7
B8
• Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK) and Flatpacks (W), and
Plastic and Ceramic 300-mil DIPs (J, N)
SN54BCT640 . . . FK PACKAGE
(TOP VIEW)
description
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.
3
2
1
20 19
18
A3
A4
A5
A6
A7
B1
17 B2
4
5
6
7
8
16
15
14
B3
B4
B5
9 10 11 12 13
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.
FUNCTION TABLE
INPUTS
OPERATION
OE
DIR
L
L
L
B data to A bus
A data to B bus
Isolation
H
H
X
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
SN54BCT640, SN74BCT640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS025C – SEPTEMBER 1988 – REVISED APRIL 1994
†
logic symbol
logic diagram (positive logic)
19
19
OE
OE
G3
1
DIR
3 EN1 [BA]
3 EN2 [AB]
1
DIR
2
3
18
A1
A2
B1
1
1
1
2
17
16
15
B2
B3
B4
2
18
A1
B1
4
5
6
A3
A4
A5
14
13
12
B5
B6
B7
7
A6
8
9
A7
A8
11
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, 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 5.5 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: 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
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
–3
0.8
–18
–3
V
I
IK
mA
A port
B port
A port
B port
I
High-level output current
mA
OH
OL
–12
20
–15
24
I
Low-level output current
mA
48
64
T
A
Operating free-air temperature
–55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54BCT640
SN74BCT640
PARAMETER
TEST CONDITIONS
UNIT
†
†
MIN TYP
MAX
MIN TYP
MAX
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
I
I
I
I
= –1 mA
= –3 mA
= –3 mA
= –12 mA
= –15 mA
= 20 mA
= 24 mA
= 48 mA
= 64 mA
2.5
2.4
2.4
2
3.4
3.3
3.3
3.2
2.5
2.4
2.4
3.4
3.3
3.3
OH
OH
OH
OH
OH
OL
OL
OL
OL
A port
B port
CC
V
OH
V
V
V
CC
= 4.5 V
2
3.1
0.35
0.42
0.3
0.5
A port
B port
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 4.5 V
= 4.5 V
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
0.5
V
OL
0.38
0.55
0.55
1
A or B port
Control inputs
A or B port
Control inputs
A or B port
Control inputs
A port
1
0.1
V = 5.5 V
I
mA
µA
I
I
0.1
70
70
‡
V = 2.7 V
I
I
IH
20
20
–0.6
–0.65
–150
–225
84
–0.6
–0.65
–150
–225
94
‡
V = 0.5 V
I
mA
mA
I
IL
–60
–60
§
V
O
= 0
I
OS
B port
–100
–100
I
I
I
A to B
V
CC
V
CC
V
CC
= 5.5 V
= 5.5 V
= 5.5 V
53
23
4
53
23
4
mA
mA
mA
CCL
CCH
CCZ
A to B
37
41
10
11
†
‡
§
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
2–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54BCT640, SN74BCT640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS025C – SEPTEMBER 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
′BCT640
TYP
3.6
SN54BCT640 SN74BCT640
MIN
0.5
0.5
3.1
4.1
1.9
1.8
MAX
5.6
3.4
8.9
9.5
7.9
6.8
MIN
0.5
0.5
2.6
3.5
1.4
1.5
MAX
7
MIN
0.5
0.5
2.6
3.5
1.4
1.5
MAX
6.5
t
t
t
t
t
t
PLH
PHL
PZH
PZL
PHZ
PLZ
A or B
B or A
A or B
A or B
ns
ns
ns
1.9
3.8
3.7
6.4
10.5
12.3
12.2
8.3
10.2
10.7
10.2
7.8
OE
OE
6.9
5
4.3
†
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
PACKAGE OPTION ADDENDUM
www.ti.com
9-Oct-2007
PACKAGING INFORMATION
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
LCCC
CDIP
CFP
Drawing
5962-9075201M2A
5962-9075201MRA
5962-9075201MSA
SN74BCT640DW
ACTIVE
ACTIVE
ACTIVE
ACTIVE
FK
J
20
20
20
20
1
1
1
TBD
TBD
TBD
POST-PLATE N / A for Pkg Type
A42 SNPB
A42
N / A for Pkg Type
N / A for Pkg Type
W
SOIC
DW
25 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74BCT640DWE4
SN74BCT640DWG4
SN74BCT640DWR
SN74BCT640DWRE4
SN74BCT640DWRG4
SN74BCT640N
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOIC
SOIC
SOIC
SOIC
SOIC
PDIP
PDIP
SO
DW
DW
DW
DW
DW
N
20
20
20
20
20
20
20
20
20
20
25 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
25 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
20
Pb-Free
(RoHS)
CU NIPDAU N / A for Pkg Type
SN74BCT640NE4
N
20
Pb-Free
(RoHS)
CU NIPDAU N / A for Pkg Type
SN74BCT640NSR
SN74BCT640NSRE4
SN74BCT640NSRG4
NS
NS
NS
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SO
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SO
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SNJ54BCT640FK
SNJ54BCT640J
SNJ54BCT640W
ACTIVE
ACTIVE
ACTIVE
LCCC
CDIP
CFP
FK
J
20
20
20
1
1
1
TBD
TBD
TBD
POST-PLATE N / A for Pkg Type
A42 SNPB
A42
N / A for Pkg Type
N / A for Pkg Type
W
(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
9-Oct-2007
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
4-Oct-2007
TAPE AND REEL BOX INFORMATION
Device
Package Pins
Site
Reel
Reel
A0 (mm)
B0 (mm)
K0 (mm)
P1
W
Pin1
Diameter Width
(mm) (mm) Quadrant
(mm)
330
(mm)
24
SN74BCT640DWR
SN74BCT640NSR
DW
NS
20
20
SITE 41
SITE 41
10.8
8.2
13.0
13.0
2.7
2.5
12
12
24
24
Q1
Q1
330
24
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
4-Oct-2007
Device
Package
Pins
Site
Length (mm) Width (mm) Height (mm)
SN74BCT640DWR
SN74BCT640NSR
DW
NS
20
20
SITE 41
SITE 41
346.0
346.0
346.0
346.0
41.0
41.0
Pack Materials-Page 2
MECHANICAL DATA
MLCC006B – OCTOBER 1996
FK (S-CQCC-N**)
LEADLESS CERAMIC CHIP CARRIER
28 TERMINAL SHOWN
A
B
NO. OF
TERMINALS
**
18 17 16 15 14 13 12
MIN
MAX
MIN
MAX
0.342
(8,69)
0.358
(9,09)
0.307
(7,80)
0.358
(9,09)
19
20
11
10
9
20
28
44
52
68
84
0.442
(11,23)
0.458
(11,63)
0.406
(10,31)
0.458
(11,63)
21
B SQ
22
0.640
(16,26)
0.660
(16,76)
0.495
(12,58)
0.560
(14,22)
8
A SQ
23
0.739
(18,78)
0.761
(19,32)
0.495
(12,58)
0.560
(14,22)
7
24
25
6
0.938
(23,83)
0.962
(24,43)
0.850
(21,6)
0.858
(21,8)
5
1.141
(28,99)
1.165
(29,59)
1.047
(26,6)
1.063
(27,0)
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. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. This package can be hermetically sealed with a metal lid.
D. The terminals are gold plated.
E. Falls within JEDEC MS-004
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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