The '46A, '47A, and 'LS47 feature active-low outputs designed for driving, common-anode LEDs or incandescent indicators directly. The '48, 'LS48, and 'LS49 feature active-high outputs for driving lamp buffers or common-cathode LEDs. All of the circuits except 'LS49 have full ripple-blanking input/output controls and a lamp test input. The 'LS49 circuit incorporates a direct blanking input. Segment identification and resultant displays are shown below. Display patterns for BCD input counts above 9 are unique symbols to authenticate input conditions.

The '46A, '47A, '48, 'LS47, and 'LS48 circuits incorporate automatic leading and/or trailing-edge zero-blanking control (RBI\ and RBO\). Lamp test (LT\) of these types may be performed at any time when the BI\/RBO\ node is at a high level. All types (including the '49 and 'LS49) contain an overriding blanking input (BI\), which can be used to control the lamp intensity by pulsing or to inhibit the outputs. Inputs and outputs are entirely compatible for use with TTL logic outputs.

The SN54246/SN74246 and '247 and the SN54LS247/SN74LS247 and 'LS248 compose the 6 and the 9 with tails and were designed to offer the designer a choice between two indicator fonts.

• '46A, '47A, 'LS47 feature
  • Open-Collector Outputs Drive Indicators Directly
  • Lamp-Test Provision
  • Leading/Trailing Zero Suppression
• '48, 'LS48 feature
  • Internal Pull-Ups Eliminate Need for External Resistors
  • Lamp-Test Provision
  • Leading/Trailing Zero Suppression
• 'LS49 feature
  • Open-Collector Outputs
  • Blanking Input
• All Circuit Types Feature Lamp Intensity Modulation Capability

• Technology Family
• LS
• Number of channels (#)
• 1
• Operating temperature range (C)
• 0 to 70
• Rating
• Catalog
• ICC (Max) (uA)
• 10000

SN74LS47的完整型号有：SN74LS47D、SN74LS47DR、SN74LS47N、SN74LS47NSR，以下是这些产品的关键参数及官网采购报价：

SN74LS47D，工作温度：0 to 70，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SN74LS47D的批量USD价格：.557（1000+）

SN74LS47DR，工作温度：PropertyValue，封装：SOIC (D)-16，包装数量MPQ：2500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SN74LS47DR的批量USD价格：.464（1000+）

SN74LS47N，工作温度：0 to 70，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SN74LS47N的批量USD价格：.534（1000+）

SN74LS47NSR，工作温度：0 to 70，封装：SO (NS)-16，包装数量MPQ：2000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SN74LS47NSR的批量USD价格：.626（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。