PCA8550PW 4位多路复用/1位闭锁的5位I2C EEPROM DIP开关

4位二选一 I²C多路复用器的主要功能是从非易失性寄存器选择4位输入或数据并将该值驱动至输出引脚。还提供一个额外的非多路复用寄存器输出。非多路复用输出为闭锁,以防I²C写入非易失性寄存器过程中输出值发生改变。提供写保护输入以启用/禁用写入非易失性寄存器的能力。“超驰”输入功能强制所有输出为逻辑0。

产品特点 Features
  • 4位二选一多路复用器、1位闭锁DIP开关
  • 5位内部非易失性寄存器
  • 超驰输入强制所有输出为逻辑0
  • 可通过I²C总线进行内部非易失性寄存器写入/读取
  • 写保护引脚可启用/禁用I²C写入至寄存器
  • 2.5 V多路复用输出
  • 3.3 V非多路复用输出(闭锁)
  • 5 V耐受输入
  • 非常适用于PC主板的“无跳线”配置
  • 为在Pentium Pro/Pentium IItm系统中使用而设计
产品实物图
PCA8550PW 实物图
封装
型号 可订购的器件编号 订购码 (12NC) 产品状态 封装
PCA8550PW 9352 598 70118 PCA8550PW,118 量产 TSSOP16 (SOT403-1)
PCA8550PW 9352 598 70112 PCA8550PW,112 量产 TSSOP16 (SOT403-1)
PCA8550PW/DG 9352 858 95118 PCA8550PW/DG,118 量产 TSSOP16 (SOT403-1)
订货和供应
型号 订购码 (12NC) 可订购的器件编号 化学成分
PCA8550PW 9352 598 70118 PCA8550PW,118 PCA8550PW
PCA8550PW 9352 598 70112 PCA8550PW,112 PCA8550PW
PCA8550PW/DG 9352 858 95118 PCA8550PW/DG,118 PCA8550PW/DG
PCA8550PW 技术支持
档案名称 标题 类型 格式
PCA8550PW 4-bit multiplexed/1-bit latched 5-bit I2C EEPROM DIP switch Data sheet pdf
AN10441 Level shifting techniques in I2C-bus design Application note pdf
AN255 I2C / SMBus Repeaters, Hubs and Expanders Application note pdf
AN10710 Features and applications of the PCA8550 I2C-bus extender Application note pdf
75016527 Extend standard I2C-bus devices without worrying about offset voltages; NXP I2C-bus extender PCA8550 in a proven application Brochure pdf
75016532 Extend the I2C-bus with advanced repeaters and hubs; NXP 2-channel I2C-bus repeaters PCA9515x and 5-channel I2C-bus hubs PCA9516x Leaflet pdf
75016080 Extend the reach of any I2C-bus system without special offset voltage levels; NXP I2C-bus extender PCA8550 Leaflet pdf
75017424 NXP I2C-bus solutions 2013: Smart, simple solutions for the 12 most common design concerns Leaflet pdf
UM10204 I2C-bus specification and user manual User manual pdf
UM10206 I2C Demonstration Board 2005-1 Quick Start Guide User manual pdf
UM10323 PCA9600 demonstration board OM6293 User manual pdf