參數(shù)資料
型號： SN54LS642J
廠商： MOTOROLA INC
元件分類： 通用總線功能
英文描述： Octal 3-State Inverting Transceiver; Package: SOEIAJ-20; No of Pins: 20; Container: Tape and Reel; Qty per Container: 2000
中文描述： LS SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, CDIP20
封裝： CERAMIC, DIP-20
文件頁數(shù)： 1/3頁
文件大?。?/td> 118K
代理商： SN54LS642J
CONNECTION DIAGRAMS DIP
(TOP VIEW)
18
17
16
15
14
13
1
2
3
4
A3
5
6
7
A6
20
19
8
A7
VCC
DIR
B1
B2
B3
B5
B4
B6
A1
A2
A4
A5
9
10
GND
A8
12
11
B7
B8
18
17
16
15
14
13
1
2
3
4
A3
5
6
7
A6
20
19
8
A7
VCC
DIR
B1
B2
B3
B5
B4
B6
A1
A2
A4
A5
9
10
GND
A8
12
11
B7
B8
SN54/74LS640
SN54/74LS642
SN54/74LS641
SN54/74LS645
ENABLE
G
ENABLE
G
5-1
FAST AND LS TTL DATA
OCTAL BUS TRANSCEIVERS
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 transmis-
sion 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
LS642
LS645
G
DIR
LS640
LS641
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
SN54/74LS640
SN54/74LS641
SN54/74LS642
SN54/74LS645
OCTAL BUS TRANSCEIVERS
LOW POWER SCHOTTKY
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXDW SOIC
Ceramic
Plastic
20
1
J SUFFIX
CERAMIC
CASE 732-03
20
1
N SUFFIX
PLASTIC
CASE 738-03
20
1
DW SUFFIX
SOIC
CASE 751D-03
相關(guān)PDF資料
PDF描述
SN54LS645J OCTAL BUS TRANSCEIVERS
SN54LS74 Data Selector/Multiplexer 2-Input Q; Package: SOIC 16 LEAD; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500
SN54LS74A Data Selector/Multiplexer 2-Input Q; Package: TSSOP-16; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500
SN54LS74J 8-Bit Serial-Input/Parallel-Output Shift Register; Package: SOIC 14 LEAD; No of Pins: 14; Container: Rail; Qty per Container: 55
SN54LS76A 8-Bit Serial-Input/Parallel-Output Shift Register; Package: PDIP-14; No of Pins: 14; Container: Rail; Qty per Container: 500
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN54LS645J 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:Bus XCVR Single 8-CH 3-ST 20-Pin CDIP Tube
SN54LS668J 制造商:Rochester Electronics LLC 功能描述:- Bulk
SN54LS669J 制造商:Texas Instruments 功能描述:Counter Single 4-Bit Sync Binary UP/Down 16-Pin CDIP Tube 制造商:Texas Instruments 功能描述:COUNTER SGL 4BIT SYNC BINARY UP/DOWN 16CDIP - Rail/Tube
SN54LS670J 制造商:Texas Instruments 功能描述:Register File Single 4-CH Bipolar 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:REGISTER FILE SGL 4-CH BIPOLAR 16CDIP - Rail/Tube
SN54LS673J 制造商:Texas Instruments 功能描述:Shift Register Single 16-Bit Serial to Serial/Parallel 24-Pin CDIP Tube
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