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CD4532B CMOS 8 位优先级编码器

数据:

描述

CD4532B consists of combinational logic that encodes the highest priority input (D7-D0) to a 3-bit binary code. The eight inputs, D7 through D0, each have an assigned priority; D7 is the highest priority and D0 is the lowest. The priority encoder is inhibited when the chip-enable input EI is low. When EI is high, the binary representation of the highest-priority input appears on output lines Q2-Q0, and the group select line GS is high to indicate that priority inputs are present. The enable-out (EO) is high when no priority inputs are present. If any one input is high, EO is low and all cascaded lower-order stages are disabled.

The CD4532B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96, MT, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).

特性

  • 从8转换为二进制
  • 提供级联功能以处理任意数量的输入
  • 组选择表示一个或多个优先输入
  • 标准化,对称输出特性
  • 100%测试20 V时的静态电流
  • 最大输入电流为1μA在整个封装温度范围内为18 V;在18 V和25°C下100 nA
  • 噪声容限(完整封装温度范围):
    0.5 V,V DD = 5 V
    1.5 V at V DD = 10 V
    1.5 V,V DD = 15 V
  • 5 V,10 V和15 V参数评级
  • 满足JEDEC暂定标准第13B号“'B'系列CMOS器件描述的标准规范”的所有要求
  • 应用:
    • 优先级编码器< /li>
    • 二进制或BCD编码器(键盘编码)
    • 浮点运算

从中获取数据表哈里斯半导体

参数 与其它产品相比 编码器和解码器

 
Function
Technology Family
VCC (Min) (V)
VCC (Max) (V)
Channels (#)
Voltage (Nom) (V)
F @ Nom Voltage (Max) (Mhz)
ICC @ Nom Voltage (Max) (mA)
tpd @ Nom Voltage (Max) (ns)
Configuration
Type
IOL (Max) (mA)
IOH (Max) (mA)
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Bits (#)
Digital input leakage (Max) (uA)
ESD Charged Device Model (kV)
ESD HBM (kV)
CD4532B
Encoder
Multiplexer    
CD4000    
3    
18    
1    
5
10
15    
8    
0.3    
110    
8:4    
Standard    
1.5    
-1.5    
Catalog    
-55 to 125    
PDIP
SO
SOIC
TSSOP    
See datasheet (PDIP)
16SO: 80 mm2: 7.8 x 10.2(SO)
16SOIC: 59 mm2: 6 x 9.9(SOIC)
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)    
8    
5    
0.75    
2    

技术文档

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