- 制造厂商：TI
- 产品类别：逻辑和电压转换
- 技术类目：专用逻辑 IC - 数字多路信号分离器和解码器
- 功能描述：BCD 转 7 段解码器/驱动器
- 点击这里打开及下载SN7447A的技术文档资料
- TI代理渠道，提供当日发货、严格的质量标准，满足您的目标价格
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
- TTL
- Number of channels (#)
- 1
- Operating temperature range (C)
- 0 to 70
- Rating
- Catalog
- ICC (Max) (uA)
- 70000
SN7447A的完整型号有：SN7447AN，以下是这些产品的关键参数及官网采购报价：
SN7447AN，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SN7447AN的批量USD价格：1.19（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。
