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SN54HC148FK PDF预览

SN54HC148FK

更新时间: 2024-11-01 23:03:03
品牌 Logo 应用领域
德州仪器 - TI 运算电路逻辑集成电路输出元件编码器
页数 文件大小 规格书
8页 129K
描述
8-LINE TO 3-LINE PRIORITY ENCODERS

SN54HC148FK 技术参数

是否无铅:含铅是否Rohs认证:不符合
生命周期:Obsolete零件包装代码:QLCC
包装说明:CERAMIC, LCC-20针数:20
Reach Compliance Code:not_compliantHTS代码:8542.39.00.01
风险等级:5.54Is Samacsys:N
其他特性:8 TO 3 LINE PRIORITY ENCODER; CASCADABLE; WITH GROUP SELECT OUTPUT系列:HC/UH
JESD-30 代码:S-CQCC-N20长度:8.89 mm
负载电容(CL):50 pF逻辑集成电路类型:ENCODER
位数:8功能数量:1
端子数量:20最高工作温度:125 °C
最低工作温度:-55 °C封装主体材料:CERAMIC, METAL-SEALED COFIRED
封装代码:QCCN封装等效代码:LCC20,.35SQ
封装形状:SQUARE封装形式:CHIP CARRIER
峰值回流温度(摄氏度):NOT SPECIFIED电源:2/6 V
传播延迟(tpd):285 ns认证状态:Not Qualified
座面最大高度:2.03 mm子类别:Arithmetic Circuits
最大供电电压 (Vsup):6 V最小供电电压 (Vsup):2 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:CMOS温度等级:MILITARY
端子形式:NO LEAD端子节距:1.27 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:8.89 mmBase Number Matches:1

SN54HC148FK 数据手册

 浏览型号SN54HC148FK的Datasheet PDF文件第2页浏览型号SN54HC148FK的Datasheet PDF文件第3页浏览型号SN54HC148FK的Datasheet PDF文件第4页浏览型号SN54HC148FK的Datasheet PDF文件第5页浏览型号SN54HC148FK的Datasheet PDF文件第6页浏览型号SN54HC148FK的Datasheet PDF文件第7页 
SN54HC148, SN74HC148  
8-LINE TO 3-LINE PRIORITY ENCODERS  
SCLS109D – MARCH 1984 – REVISED MAY 1997  
SN54HC148 . . . J OR W PACKAGE  
SN74HC148 . . . D OR N PACKAGE  
(TOP VIEW)  
Encode Eight Data Lines to 3-Line Binary  
(Octal)  
Applications Include:  
– n-Bit Encoding  
– Code Converters and Generators  
4
5
V
CC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
EO  
GS  
3
Package Options Include Plastic  
Small-Outline (D) and Ceramic Flat (W)  
Packages, Ceramic Chip Carriers (FK), and  
Standard Plastic (N) and Ceramic (J)  
300-mil DIPs  
6
7
EI  
2
A2  
A1  
GND  
1
0
A0  
description  
The ’HC148 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  
needforexternalcircuitry. Datainputsandoutputs  
are active at the low logic level.  
SN54HC148 . . . FK PACKAGE  
(TOP VIEW)  
3
2
1
20 19  
18  
GS  
3
6
7
4
5
6
7
8
17  
16  
15  
14  
NC  
2
NC  
EI  
The SN54HC148 is characterized for operation  
over the full military temperature range of –55°C  
to 125°C. The SN74HC148 is characterized for  
operation from –40°C to 85°C.  
1
A2  
9 10 11 12 13  
NC – No internal connection  
FUNCTION TABLE  
INPUTS  
OUTPUTS  
EI  
H
L
0
X
H
X
X
X
X
X
X
1
X
H
X
X
X
X
X
X
2
X
H
X
X
X
X
X
L
3
X
H
X
X
X
X
L
4
X
H
X
X
X
L
5
X
H
X
X
L
6
X
H
X
L
7
X
H
L
A2  
H
H
L
A1  
H
H
L
A0  
H
H
L
GS  
H
H
L
EO  
H
L
L
H
H
H
H
H
H
L
H
H
H
H
H
L
L
H
L
L
L
H
H
H
H
L
H
H
L
L
L
H
H
H
L
H
L
L
L
H
H
H
H
L
L
H
L
H
L
L
L
X
L
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
H
H
H
H
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.  
Copyright 1997, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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