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LX SN74LS48N(LX) SN74LS48N
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
18
specifications
Core information
- Product name
- LX SN74LS48N(LX)
- Type
- LX
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LX
- Electronic Component
- SN74LS48N(LX)
- Electronic Component
- 1
- Package
- DIP16
- Electronic Component
- LED Segment Display Driver
- Electronic Component
- 7 x1 positions
- Electronic Component
- 1.636g
- Electronic Component
- 1
- Electronic Component
- BM0264498240
- Operating Temperature
- 40℃~+125℃
- Operating Voltage
- 2V~6V
- Power Dissipation(Pd)
- 500mW
- Electronic Component
- Electronic Component
- Electronic Component
- 1000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SN74LS48N(LX) 4线-7段显示译码器/驱动器产品概述
SN74LS48N(LX)是灵星芯微（LX）推出的LS-TTL架构4线-7段显示译码器/驱动器，专为共阴极七段数码管设计，可将4位二进制BCD码（0000~1001）转换为七段显示控制信号，集成灯测试、灭零、灭灯等功能，广泛适用于仪器仪表、工业控制面板、家电显示、电子计数器等数字显示场景。
一、核心参数与特性
- 电气性能
工作电压范围2V~6V，覆盖5V传统系统及3.3V低功耗场景，无需电源转换；最大耗散功率（Pd）500mW，符合LS-TTL低功耗特性，适配电池供电设备；输出端可直接驱动共阴极数码管，无需额外功率放大。 - 环境适应性
工作温度-40℃+125℃，满足工业级极端环境要求（如户外低温、车载高温）；存储温度建议-55℃+150℃，便于长期存放。 - 封装兼容性
采用DIP-16双列直插式封装，引脚间距2.54mm，兼容面包板、PCB焊接及标准IC插座，引脚功能与标准SN74LS48完全兼容，可直接替换同类产品。
二、引脚功能与典型应用
SN74LS48N(LX)引脚遵循标准定义，核心功能如下：
- 电源/控制端：16脚（Vcc）、8脚（GND）为电源地；9脚（LT）灯测试（低电平有效，点亮所有段）；10脚（RBI）灭零输入（低电平熄灭前导零）；15脚（BI/RBO）灭灯输入/灭零输出（低电平灭灯，或级联灭零）。
- 输入/输出端：1114脚（D0D3）为4位BCD输入；17脚（ag）为七段输出（高电平驱动共阴极数码管）。
典型应用：工业计数器场景中，将计数器BCD输出接D0D3，Vcc接5V，数码管ag接1~7脚，LT接按钮实现灯测试，RBI接低电平熄灭前导零，无需外围元件即可实现清晰数字显示。
三、性能优势与可靠性
- 宽电压适配：2V~6V覆盖多系统，简化电源设计；
- 工业级稳定：-40℃~+125℃宽温，500mW低功耗减少发热，延长寿命；
- 集成实用功能：内置灯测试、灭零、灭灯，降低系统成本；
- 易调试替换：DIP-16封装便于焊接排查，兼容标准引脚，降低供应链风险。
四、使用注意事项
- 电源防护：严禁Vcc/GND反接，建议并联100nF滤波电容；
- 负载匹配：数码管电流超20mA时，段输出串联10~20Ω限流电阻；
- 电平匹配：3.3V输入需通过上拉电阻或电平转换适配LS-TTL电平（高≥2V，低≤0.8V）；
- 静电防护：焊接时使用防静电烙铁/手腕带，避免器件损坏。
综上，SN74LS48N(LX)凭借宽电压、工业级可靠性及集成功能，成为共阴极数码管显示的高性价比选择，适用于各类数字显示设备开发。
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