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SNJ54HC148W PDF预览

SNJ54HC148W

更新时间： 2024-11-01 05:16:55
品牌 Logo 应用领域
德州仪器 - TI 编码器
页数 文件大小 规格书
17页 585K
描述
8-LINE TO 3-LINE PRIORITY ENCODERS

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SNJ54HC148W 数据手册

 浏览型号SNJ54HC148W的Datasheet PDF文件第2页浏览型号SNJ54HC148W的Datasheet PDF文件第3页浏览型号SNJ54HC148W的Datasheet PDF文件第4页浏览型号SNJ54HC148W的Datasheet PDF文件第5页浏览型号SNJ54HC148W的Datasheet PDF文件第6页浏览型号SNJ54HC148W的Datasheet PDF文件第7页 
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ꢇ ꢊꢋ ꢌꢁꢍ ꢎ ꢏ ꢐ ꢊꢋ ꢌꢁꢍ ꢑꢒ ꢌꢏ ꢒꢌꢎ ꢓ ꢍꢁꢅ ꢏ ꢔꢍ ꢒ ꢀ  
SCLS109G − MARCH 1984 − REVISED APRIL 2004  
SN54HC148 . . . J OR W PACKAGE  
SN74HC148 . . . D, DW, N, OR NS PACKAGE  
(TOP VIEW)  
D
D
D
D
D
D
D
Wide Operating Voltage Range of 2 V to 6 V  
Outputs Can Drive Up To 10 LSTTL Loads  
Low Power Consumption, 80-µA Max I  
CC  
4
5
V
CC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
Typical t = 16 ns  
pd  
4-mA Output Drive at 5 V  
EO  
GS  
3
6
Low Input Current of 1 µA Max  
Encode Eight Data Lines to 3-Line Binary  
(Octal)  
7
EI  
2
A2  
A1  
GND  
1
D
Applications Include:  
− n-Bit Encoding  
− Code Converters and Generators  
0
A0  
SN54HC148 . . . FK PACKAGE  
(TOP VIEW)  
description/ordering information  
The ’HC148 devices feature priority decoding of  
the inputs to ensure that only the highest-order  
data line is encoded. These devices encode eight  
data lines to 3-line (4-2-1) binary (octal).  
Cascading circuitry (enable input EI and enable  
output EO) has been provided to allow octal  
expansion without the need for external circuitry.  
Data inputs and outputs are active at the low logic  
level.  
3
2
1
20 19  
18  
GS  
3
6
7
4
5
6
7
8
17  
16  
15  
14  
NC  
2
NC  
EI  
1
A2  
9 10 11 12 13  
NC − No internal connection  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
PACKAGE  
T
A
PDIP − N  
SOIC − D  
Tube of 25  
Tube of 40  
Reel of 2500  
Reel of 250  
Reel of 2000  
Reel of 2000  
Tube of 25  
Tube of 150  
Tube of 55  
SN74HC148N  
SN74HC148N  
SN74HC148D  
SN74HC148DR  
SN74HC148DT  
SN74HC148DWR  
SN74HC148NSR  
SNJ54HC148J  
SNJ54HC148W  
SNJ54HC148FK  
HC148  
−40°C to 85°C  
SOIC − DW  
SOP − NS  
CDIP − J  
HC148  
HC148  
SNJ54HC148J  
SNJ54HC148W  
SNJ54HC148FK  
−55°C to 125°C  
CFP − W  
LCCC − FK  
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are  
available at www.ti.com/sc/package.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
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Copyright 2004, Texas Instruments Incorporated  
ꢏ ꢘ ꢣ ꢛ ꢚꢦ ꢡꢠ ꢞꢟ ꢠꢚ ꢜꢣ ꢥꢗ ꢝꢘ ꢞ ꢞꢚ ꢭꢌ ꢋꢊ ꢑꢒ ꢮ ꢊꢐꢇꢂ ꢐꢂꢈ ꢝꢥꢥ ꢣꢝ ꢛ ꢝ ꢜꢢ ꢞꢢꢛ ꢟ ꢝ ꢛ ꢢ ꢞꢢ ꢟꢞꢢ ꢦ  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...17

中文翻译

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