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HD74LS148P 参数 Datasheet PDF下载

HD74LS148P图片预览
型号: HD74LS148P
PDF下载: 下载PDF文件 查看货源
内容描述: 8行至3行八路优先编码器 [8-line-to-3-line Octal Priority Encoder]
分类和应用: 运算电路逻辑集成电路光电二极管输出元件编码器
文件页数/大小: 6 页 / 72 K
品牌: RENESAS [ RENESAS TECHNOLOGY CORP ]
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HD74LS148
8-line-to-3-line Octal Priority Encoder
REJ03D0437–0200
Rev.2.00
Feb.18.2005
The HD74LS148 encodes eight data lines to three-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. The data inputs
and outputs are active at the low logic level.
Features
Ordering Information
Part Name
HD74LS148P
HD74LS148FPEL
Package Type
DILP-16 pin
SOP-16 pin (JEITA)
Package Code
(Previous Code)
PRDP0016AE-B
(DP-16FV)
PRSP0016DH-B
(FP-16DAV)
Package
Abbreviation
P
FP
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
Note: Please consult the sales office for the above package availability.
Pin Arrangement
4
5
Inputs
6
7
EI
A
2
Outputs
A
1
GND
1
4
2
3
4
5
6
7
8
5
6
7
EI
A
2
A
1
A
0
EO
GS
3
2
1
0
16
15
14
13
12
11
10
9
V
CC
EO
Outputs
GS
3
2
Inputs
1
0
A
0
Outputs
(Top view)
Rev.2.00, Feb.18.2005, page 1 of 5