The CD40147B CMOS encoder features priority encoding of the inputs to ensure that only the highest-order data line is encoded. Ten data input lines (0-9) are encoded to four-line (8, 4, 2, 1) BCD. The highest priority line is line 9. All four output lines are logic 1 (V_SS) when all input lines are logic 0. All inputs and outputs are buffered, and each output can drive one TTL low-power Schottky load. The CD40147B is functionally similar to the TTL54/74147 if pin 15 is tied low.

The CD40147B types are supplied in 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).

• Encodes 10-line to 4-line BCD
• Active low inputs and outputs
• Standardized, symmetrical output characteristics
• 100% tested for quiescent current at 20 V
• 5-V, 10-V, and 15-V parametric ratings
• Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices"
• Maximum input current of 1 A at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
• Noise margin (full package temperature range) = 1 V at VDD = 5 V 2 V at VDD = 10 V 2.5 V at VDD = 15 V
• Applications:
  • Keyboard encoding
  • 10-line to BCD encoding
  • Range selection

• Technology Family
• CD4000
• Function
• Encoder
• Configuration
• 10:4
• Number of channels (#)
• 1
• Operating temperature range (C)
• -55 to 125
• Rating
• Catalog

CD40147B的完整型号有：CD40147BE、CD40147BM，以下是这些产品的关键参数及官网采购报价：

CD40147BE，工作温度：-55 to 125，封装：PDIP (N)-16，包装数量MPQ：25个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：NIPDAU，TI官网CD40147BE的批量USD价格：.513（1000+）

CD40147BM，工作温度：-55 to 125，封装：SOIC (D)-16，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CD40147BM的批量USD价格：.446（1000+）

14-24-LOGIC-EVM 支持 14 到 24 引脚 PW、DB、D、DW、NS、DYY 和 DGV 封装的通用逻辑 EVM

该 EVM 设计用于支持采用 14 至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。