參數(shù)資料
型號(hào): SN74LS641N
廠商: ON SEMICONDUCTOR
元件分類(lèi): 通用總線功能
英文描述: LOW POWER SCHOTTKY
中文描述: LS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20
封裝: PLASTIC, DIP-20
文件頁(yè)數(shù): 1/8頁(yè)
文件大?。?/td> 141K
代理商: SN74LS641N
Semiconductor Components Industries, LLC, 1999
December, 1999 – Rev. 6
1
Publication Order Number:
SN74LS640/D
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.
DEVICE
LS640
LS641
LS642
LS645
OUTPUT
3-State
Open-Collector
Open-Collector
3-State
LOGIC
Inverting
True
Inverting
True
FUNCTION TABLE
CONTROL
INPUTS
OPERATION
LS640
LS642
LS641
LS645
G
DIR
L
L
B data to A bus
B data to A bus
L
H
A data to B bus
A data to B bus
H
X
Isolation
Isolation
H = HIGH Level, L = LOW Level, X = Irrelevant
GUARANTEED OPERATING RANGES
(SN74LS640, SN74LS645)
Symbol
Parameter
Min
Typ
Max
Unit
V
CC
Supply Voltage
4.75
5.0
5.25
V
T
A
Operating Ambient
Temperature Range
0
25
70
°
C
I
OH
Output Current – High
–3.0
mA
–15
mA
I
OL
Output Current – Low
24
mA
GUARANTEED OPERATING RANGES
(SN74LS641, SN74LS642)
Symbol
Parameter
Min
Typ
Max
Unit
V
CC
Supply Voltage
4.75
5.0
5.25
V
T
A
Operating Ambient
Temperature Range
0
25
70
°
C
V
OH
Output Voltage – High
5.5
V
I
OL
Output Current – Low
24
mA
LOW
POWER
SCHOTTKY
Device
Package
Shipping
ORDERING INFORMATION
SN74LS640N
16 Pin DIP
1440 Units/Box
SN74LS640DW
16 Pin
SOIC
DW SUFFIX
CASE 751D
http://onsemi.com
2500/Tape & Reel
PLASTIC
N SUFFIX
CASE 738
20
1
20
1
SN74LS641N
16 Pin DIP
1440 Units/Box
SN74LS641DW
16 Pin
2500/Tape & Reel
SN74LS642N
16 Pin DIP
1440 Units/Box
SN74LS642DW
16 Pin
2500/Tape & Reel
SN74LS645N
16 Pin DIP
1440 Units/Box
SN74LS645DW
16 Pin
2500/Tape & Reel
相關(guān)PDF資料
PDF描述
SN74LS642DW LOW POWER SCHOTTKY
SN74LS642N LOW POWER SCHOTTKY
SN74LS645DW LOW POWER SCHOTTKY
SN74LS645N LOW POWER SCHOTTKY
SN74LS640 LOW POWER SCHOTTKY
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