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XBLW SN74HC573N
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- XBLW SN74HC573N(XBLW)
- Type
- XBLW
- Minimum package
- 18 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- XBLW
- Electronic Component
- SN74HC573N(XBLW)
- Electronic Component
- 1
- Package
- DIP-20
- Electronic Component
- Latch
- Electronic Component
- 74HC
- Electronic Component
- 1.619g
- Electronic Component
- 1
- Channel Count
- 8
- Electronic Component
- BM0265609055
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 2V~6V
- Output Type
- Electronic Component
- Logic Type
- D Latch
- Current(IOL)
- 7.8mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SN74HC573N（XBLW）8位三态D型锁存器产品概述
一、产品核心功能与逻辑特性
SN74HC573N（XBLW）是一款8位三态输出D型锁存器，属于高速CMOS（74HC）系列通用逻辑器件。其核心逻辑功能围绕「数据锁存+总线共享」设计：
当锁存使能端（LE）为高电平时，8位输入数据（D0D7）直接传送到对应输出端（Q0Q7）；当LE转为低电平时，输出端立即锁存当前数据并保持，直到LE再次置高。同时，器件配备输出使能端（OE）——OE为低电平时输出正常工作，OE为高电平时所有输出进入高阻态，可避免多器件共享总线时的竞争问题，是系统扩展的关键优势。
二、关键电气参数与性能优势
该器件平衡了高速响应、低功耗与宽适配性，核心参数及价值如下：
- 宽电压适配：工作电压2V~6V，兼容3.3V（嵌入式主流）、5V（传统逻辑）等电源，无需额外电平转换；
- 足够驱动能力：灌电流（IOL）达7.8mA，可直接驱动LED、小功率继电器或逻辑负载，减少外部驱动电路；
- 高速响应：传播延迟（tpd）仅14ns，远快于普通CMOS锁存器，满足数据总线、地址锁存等对速度敏感的场景；
- 低静态功耗：静态电流（Iq）仅8μA，待机状态几乎不耗电，适配电池供电的便携设备或低功耗系统；
- 工业级温宽：-40℃~+85℃，可稳定工作于户外、车间等恶劣环境，覆盖消费级与工业级应用。
三、封装形式与引脚定义
器件采用DIP-20封装（双列直插式20引脚），是原型开发、手工焊接的理想选择，同时兼容标准面包板与通孔PCB设计。典型引脚功能（参考标准定义）：
- 输入：D0~D7（8位数据输入）；
- 输出：Q0~Q7（8位三态数据输出）；
- 控制：LE（锁存使能，高有效）、OE（输出使能，低有效）；
- 电源：VCC（2~6V）、GND（地）。
四、典型应用场景
凭借三态输出、宽电压与高速特性，该器件广泛应用于：
- 单片机IO扩展：8051、STM32等MCU IO不足时，扩展8位输入/输出寄存器，配合三态输出实现总线共享；
- 总线锁存：如8051扩展外部RAM时，锁存低8位地址，分离地址与数据总线；
- 显示驱动：LED点阵、数码管的位锁存，配合动态扫描实现多位数显示；
- 工业控制：PLC、传感器数据采集的临时锁存，适应宽温环境；
- 消费电子：遥控器、智能家电的状态锁存，低功耗适合电池供电设备。
五、品牌与可靠性说明
- 品牌背景：XBLW（芯伯乐）是国内专注通用逻辑器件的厂商，产品覆盖74HC/74LS全系列，品质符合工业级标准；
- 兼容性：引脚与功能完全兼容国际标准SN74HC573N，可直接替换同型号器件，降低设计风险；
- 可靠性：采用成熟CMOS工艺，抗干扰能力强，参数一致性好，长期工作稳定性高。
该器件以高性价比、宽适配性成为嵌入式系统、工业控制等领域的经典锁存器选择，满足多数场景的功能与性能需求。
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