锐单电子商城 , 一站式电子元器件采购平台!
  • 电话:400-990-0325

78027012A

78027012A

TI 德州仪器 主动器件

10号线到4线和8号线到3线优先编码器 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS

description/ordering information

These TTL encoders feature priority decoding of the inputs to ensure that only the highest-order data line is encoded. The ’147 and ’LS147 devices encode nine data lines to four-line 8-4-2-1 BCD. The implied decimal zero condition requires no input condition, as zero is encoded when all nine data lines are at a high logic level. The ’148 and ’LS148 devices encode 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. For all types, data inputs and outputs are active at the low logic level. All inputs are buffered to represent one normalized Series 54/74 or 54/74LS load, respectively.

78027012A中文资料参数规格
技术参数

电源电压DC 4.50V ~ 5.50V

电压波节 5.00 V

耗散功率 60 mW

工作温度Max 125 ℃

工作温度Min -55 ℃

耗散功率Max 60 mW

封装参数

安装方式 Surface Mount

引脚数 20

封装 LCCC

外形尺寸

封装 LCCC

其他

产品生命周期 Active

包装方式 Tube

符合标准

RoHS标准 Non-Compliant

含铅标准 Contains Lead

海关信息

ECCN代码 EAR99

78027012A引脚图与封装图
78027012A引脚图

78027012A引脚图

78027012A封装图

78027012A封装图

78027012A封装焊盘图

78027012A封装焊盘图

在线购买78027012A
型号 制造商 描述 购买
78027012A TI 德州仪器 10号线到4线和8号线到3线优先编码器 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS 搜索库存