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參數資料
| 型號： | 74LS245 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 3-STATE Octal Bus Transceiver |
| 中文描述： | 三態八路總線收發器 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 102K |
| 代理商： | 74LS245 |
Semiconductor Components Industries, LLC, 1999
December, 1999 – Rev. 6
1
Publication Order Number:
SN74LS245/D
The SN74LS245 is an Octal Bus Transmitter/Receiver designed for
8-line asynchronous 2-way data communication between data buses.
Direction Input (DR) controls transmission of Data from bus A to bus
B or bus B to bus A depending upon its logic level. The Enable input
(E) can be used to isolate the buses.
Hysteresis Inputs to Improve Noise Immunity
2-Way Asynchronous Data Bus Communication
Input Diodes Limit High-Speed Termination Effects
ESD > 3500 Volts
LOGIC AND CONNECTION DIAGRAMS DIP
(TOP VIEW)
18
17
16
15
14
13
1
2
A1
3
4
A3
5
6
A5
7
A6
20
19
8
A7
V
CC
DIR
E
B1
B2
B3
B5
B4
B6
A2
A4
9
A8
10
GND
12
11
B7
B8
TRUTH TABLE
INPUTS
OUTPUT
E
DIR
L
L
H
L
H
X
Bus B Data to Bus A
Bus A Data to Bus B
Isolation
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
GUARANTEED OPERATING RANGES
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
LOW
POWER
SCHOTTKY
Device
Package
Shipping
ORDERING INFORMATION
SN74LS245N
16 Pin DIP
1440 Units/Box
SN74LS245DW
16 Pin
SOIC
DW SUFFIX
CASE 751D
http://onsemi.com
2500/Tape & Reel
PLASTIC
N SUFFIX
CASE 738
20
1
20
1
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 74LS245 WAF | 制造商:Texas Instruments 功能描述: |
| 74LS245D | 制造商: 功能描述: 制造商:undefined 功能描述: 制造商:North American Philips Discrete Products Div 功能描述:74LS245D 制造商:Texas Instruments 功能描述:74LS245D |
| 74LS245DC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Bus Transceiver |
| 74LS245N | 制造商:NXP Semiconductors 功能描述:74LS245N |
| 74LS245PC | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:F/C 功能描述: 制造商:Freescale Semiconductor 功能描述: 制造商:FAIR85+ 功能描述:Bus Transceiver, Single, 8 Bit, 20 Pin, Plastic, DIP 制造商:Fairchild Semiconductor Corporation 功能描述:Bus Transceiver, Single, 8 Bit, 20 Pin, Plastic, DIP 制造商:Texas Instruments 功能描述: |
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