SN74LS640N [ONSEMI]
LOW POWER SCHOTTKY; 小功率肖特基
| 型号： | SN74LS640N |
| 厂家： | 
ONSEMI |
| 描述： | LOW POWER SCHOTTKY |
| 文件： | 总8页 (文件大小：145K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
These octal bus transceivers are designed for asynchronous
two-way communication between data buses. Control function
implementation minimizes external timing requirements. These
circuits allow data transmission from the A bus to B or from the B bus
to A bus depending upon the logic level of the direction control (DIR)
input. Enable input (G) can disable the device so that the buses are
effectively isolated.
http://onsemi.com
LOW
POWER
SCHOTTKY
DEVICE
LS640
LS641
LS642
LS645
OUTPUT
3-State
Open-Collector
Open-Collector
3-State
LOGIC
Inverting
True
Inverting
True
FUNCTION TABLE
20
CONTROL
INPUTS
OPERATION
1
LS640
LS642
LS641
LS645
PLASTIC
N SUFFIX
CASE 738
G
DIR
L
L
L
B data to A bus
A data to B bus
Isolation
B data to A bus
A data to B bus
Isolation
H
H
X
H = HIGH Level, L = LOW Level, X = Irrelevant
20
GUARANTEED OPERATING RANGES (SN74LS640, SN74LS645)
1
Symbol
Parameter
Supply Voltage
Min
4.75
0
Typ
5.0
25
Max
5.25
70
Unit
V
SOIC
DW SUFFIX
CASE 751D
V
CC
T
A
Operating Ambient
Temperature Range
°C
I
Output Current – High
–3.0
–15
24
mA
mA
mA
OH
I
Output Current – Low
OL
ORDERING INFORMATION
GUARANTEED OPERATING RANGES (SN74LS641, SN74LS642)
Device
Package
16 Pin DIP
16 Pin
Shipping
Symbol
Parameter
Supply Voltage
Min
4.75
0
Typ
5.0
25
Max
5.25
70
Unit
V
SN74LS640N
SN74LS640DW
SN74LS641N
SN74LS641DW
SN74LS642N
SN74LS642DW
SN74LS645N
SN74LS645DW
1440 Units/Box
2500/Tape & Reel
1440 Units/Box
2500/Tape & Reel
1440 Units/Box
2500/Tape & Reel
1440 Units/Box
2500/Tape & Reel
V
CC
T
A
Operating Ambient
Temperature Range
°C
16 Pin DIP
16 Pin
V
Output Voltage – High
Output Current – Low
5.5
24
V
OH
OL
I
mA
16 Pin DIP
16 Pin
16 Pin DIP
16 Pin
Semiconductor Components Industries, LLC, 1999
1
Publication Order Number:
December, 1999 – Rev. 6
SN74LS640/D
SN74LS640 SN74LS641 SN74LS642 SN74LS645
CONNECTION DIAGRAMS DIP (TOP VIEW)
ENABLE
ENABLE
V
B1 B2 B3 B4 B5 B6 B7 B8
V
B1 B2 B3 B4 B5 B6 B7 B8
G
G
CC
CC
20 19 18 17 16 15 14 13 12
11
20 19 18 17 16 15 14 13 12
11
1
2
3
4
5
6
8
9
10
1
2
3
4
5
6
8
9
10
7
7
DIR A1 A2 A3 A4 A5 A6 A7 A8 GND
DIR A1 A2 A3 A4 A5 A6 A7 A8 GND
SN74LS640
SN74LS642
SN74LS641
SN74LS645
http://onsemi.com
2
SN74LS640 SN74LS641 SN74LS642 SN74LS645
SN74LS640 • SN74LS645
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Input HIGH Voltage
Unit
Test Conditions
Min
Typ
Max
Guaranteed Input HIGH Voltage for
All Inputs
V
IH
2.0
V
0.6
Guaranteed Input LOW Voltage for
All Inputs
V
V
Input LOW Voltage
V
IL
Input Clamp Diode Voltage
–0.65
3.4
–1.5
V
V
V
V
CC
V
CC
V
CC
= MIN, I = –18 mA
IN
IK
2.4
2.0
= MIN, I = 3.0 mA
OH
V
V
Output HIGH Voltage
Output LOW Voltage
OH
= MIN, I = MAX
OH
V
V
= V MIN,
CC
0.25
0.35
0.4
0.5
V
V
I
= 12 mA
CC
OL
OL
= V or V
IH
IN
IL
OL
I
= 24 mA
per Truth Table
I
I
Output Off Current HIGH
Output Off Current LOW
20
–400
20
µA
µA
V
V
V
V
V
V
V
= MAX, V
= MAX, V
= 2.7 V
= 0.4 V
OZH
CC
CC
CC
CC
CC
CC
CC
OUT
OUT
OZL
A or B, DIR or G
µA
= MAX, V = 2.7 V
IN
DIR or G
A or B
0.1
mA
mA
mA
mA
= MAX, V = 7.0 V
I
IH
Input HIGH Current
Input LOW Current
IN
0.1
= MAX, V = 5.5 V
IN
I
I
–0.4
–225
= MAX, V = 0.4 V
IL
IN
Output Short Circuit Current (Note 1)
–40
= MAX
= MAX
OS
Power Supply Current
Total Output HIGH
70
90
95
I
mA
V
CC
CC
Total, Output LOW
Total at HIGH Z
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS (T = 25°C, V = 5.0 V)
A
CC
Limits
LS640
Typ
LS645
Typ
Symbol
Parameter
Unit
Test Conditions
Min
Max
Min
Max
t
t
Propagation Delay
A to B
6.0
8.0
10
15
8.0
11
15
15
PLH
PHL
ns
t
t
Propagation Delay
B to A
6.0
8.0
10
15
8.0
11
15
15
PLH
PHL
ns
ns
ns
ns
ns
C = 45 pF,
R = 667 Ω
L
L
t
t
Output Enable Time
G, DIR to A
31
23
40
40
31
26
40
40
PZL
PZH
t
t
Output Enable Time
G, DIR to B
31
23
40
40
31
26
40
40
PZL
PZH
t
t
Output Disable Time
G, DIR to A
15
15
25
25
15
15
25
25
PLZ
PHZ
C = 5.0 pF
L
t
t
Output Disable Time
G, DIR to B
15
15
25
25
15
15
25
25
PLZ
PHZ
http://onsemi.com
3
SN74LS640 SN74LS641 SN74LS642 SN74LS645
SN74LS641 • SN74LS642
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Min
Typ
Max
Symbol
Parameter
Input HIGH Voltage
Unit
Test Conditions
Guaranteed Input HIGH Voltage for
All Inputs
V
IH
2.0
V
0.6
Guaranteed Input LOW Voltage for
All Inputs
V
V
Input LOW Voltage
V
IL
Input Clamp Diode Voltage
Output HIGH Current
–0.65
–1.5
100
V
V
CC
V
CC
= MIN, I = –18 mA
IN
IK
I
µA
= MIN, V = MAX
OH
OH
V
V
= V MIN,
CC
0.25
0.35
0.4
0.5
V
V
I
= 12 mA
CC
OL
= V or V
IH
V
OL
Output LOW Voltage
IN
IL
I
OL
= 24 mA
per Truth Table
20
µA
mA
mA
V
CC
V
CC
V
CC
= MAX, V = 2.7 V
IN
I
I
Input HIGH Current
Input LOW Current
IH
–0.1
–0.4
= MAX, V = 7.0 V
IN
= MAX, V = 0.4 V
IL
IN
Power Supply Current
Total, Output HIGH
70
90
95
I
mA
V
CC
= MAX
CC
Total, Output LOW
Total at HIGH Z
AC CHARACTERISTICS (T = 25°C, V = 5.0 V)
A
CC
Limits
LS641
Typ
LS642
Symbol
Parameter
Unit
Test Conditions
Min
Max
Min
Typ
Max
t
t
Propagation Delay,
A to B
17
16
25
25
19
14
25
25
PLH
PHL
ns
t
t
Propagation Delay,
B to A
17
16
25
25
19
14
25
25
PLH
PHL
ns
ns
ns
C = 45 pF,
R = 667 Ω
L
L
t
t
Propagation Delay,
G, DIR to A
23
34
40
50
26
43
40
60
PLH
PHL
t
t
Propagation Delay,
G, DIR to B
25
37
40
50
28
39
40
60
PLH
PHL
http://onsemi.com
4
SN74LS640 SN74LS641 SN74LS642 SN74LS645
PACKAGE DIMENSIONS
N SUFFIX
PLASTIC PACKAGE
CASE 738–03
ISSUE E
–A–
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
20
1
11
10
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.
B
L
C
INCHES
DIM MIN MAX
1.070 25.66
MILLIMETERS
MIN
MAX
27.17
6.60
4.57
0.55
A
B
C
D
E
1.010
0.240
0.150
0.015
0.260
0.180
0.022
6.10
3.81
0.39
–T–
SEATING
PLANE
K
0.050 BSC
1.27 BSC
M
0.050
0.100 BSC
0.008
0.110
0.300 BSC
0.070
1.27
1.77
F
G
J
K
L
N
E
2.54 BSC
0.015
0.140
0.21
2.80
0.38
3.55
G
F
J 20 PL
7.62 BSC
D 20 PL
M
M
0.25 (0.010)
T B
M
N
0
15
0.040
0
15
0.020
0.51
1.01
M
M
0.25 (0.010)
T A
http://onsemi.com
5
SN74LS640 SN74LS641 SN74LS642 SN74LS645
PACKAGE DIMENSIONS
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751D–05
ISSUE F
D
A
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DIMENSIONS D AND E DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE PROTRUSION SHALL
BE 0.13 TOTAL IN EXCESS OF B DIMENSION AT
MAXIMUM MATERIAL CONDITION.
20
11
10
E
B
1
MILLIMETERS
DIM MIN
MAX
2.65
0.25
0.49
0.32
12.95
7.60
A
A1
B
C
D
E
2.35
0.10
0.35
0.23
12.65
7.40
20X B
M
S
S
0.25
T A
B
e
H
h
1.27 BSC
A
10.05
0.25
0.50
0
10.55
0.75
0.90
7
L
SEATING
PLANE
18X e
A1
C
T
http://onsemi.com
6
SN74LS640 SN74LS641 SN74LS642 SN74LS645
Notes
http://onsemi.com
7
SN74LS640 SN74LS641 SN74LS642 SN74LS645
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
withoutfurthernoticetoanyproductsherein. SCILLCmakesnowarranty,representationorguaranteeregardingthesuitabilityofitsproductsforanyparticular
purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,
including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be
validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.
SCILLCproductsarenotdesigned, intended, orauthorizedforuseascomponentsinsystemsintendedforsurgicalimplantintothebody, orotherapplications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or
death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold
SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable
attorneyfees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim
alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
PUBLICATION ORDERING INFORMATION
North America Literature Fulfillment:
ASIA/PACIFIC: LDC for ON Semiconductor – Asia Support
Phone: 303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time)
Toll Free from Hong Kong 800–4422–3781
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303–675–2175 or 800–344–3860 Toll Free USA/Canada
Fax: 303–675–2176 or 800–344–3867 Toll Free USA/Canada
Email: ONlit@hibbertco.com
Email: ONlit–asia@hibbertco.com
JAPAN: ON Semiconductor, Japan Customer Focus Center
4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–8549
Phone: 81–3–5487–8345
N. American Technical Support: 800–282–9855 Toll Free USA/Canada
Email: r14153@onsemi.com
EUROPE: LDC for ON Semiconductor – European Support
German Phone: (+1) 303–308–7140 (M–F 2:30pm to 5:00pm Munich Time)
Email: ONlit–german@hibbertco.com
Fax Response Line: 303–675–2167
800–344–3810 Toll Free USA/Canada
French Phone: (+1) 303–308–7141 (M–F 2:30pm to 5:00pm Toulouse Time)
Email: ONlit–french@hibbertco.com
ON Semiconductor Website: http://onsemi.com
English Phone: (+1) 303–308–7142 (M–F 1:30pm to 5:00pm UK Time)
Email: ONlit@hibbertco.com
For additional information, please contact your local
Sales Representative.
SN74LS640/D
相关型号：
SN74LS640N3
Bus Transceiver, LS Series, 1-Func, 8-Bit, Inverted Output, TTL, PDIP20, PLASTIC, DIP-20
ROCHESTER
SN74LS640NDS
Bus Transceiver, LS Series, 1-Func, 8-Bit, Inverted Output, TTL, PDIP20, 738-01
MOTOROLA
©2020 ICPDF网 联系我们和版权申明