PCF8570T 带有I2C总线接口的256 x 8位静态低电压RAM

PCF8570是一款低功率静态CMOS RAM,组织为256字×8位。

通过两路双向总线(I²C总线)串行传送地址和数据。每次写入或读取数据字节后会自动递增内置字地址寄存器。三个地址引脚A0、A1和A2用于定义硬件地址,允许使用最多8个器件连接至总线而无需额外硬件。

产品特点 Features
  • 工作电源电压为2.5至6.0 V
  • 低数据保持电压;最小为1.0 V
  • 低待机电流;最大为15 µA
  • 节电模式;典型为50 nA
  • 串行输入/输出总线(I²C总线)
  • 通过3个硬件地址引脚寻址
  • 自动字地址递增
  • 提供DIP8和SO8封装。
功能框图
PCF8570T 功能框图
封装
型号 可订购的器件编号 订购码 (12NC) 产品状态 封装
PCF8570T/F5 9351 549 20512 PCF8570T/F5,512 量产 SO8 (SOT96-1)
PCF8570T/F5 9351 549 20518 PCF8570T/F5,518 量产 SO8 (SOT96-1)
订货和供应
型号 订购码 (12NC) 可订购的器件编号 化学成分
PCF8570T/F5 9351 549 20512 PCF8570T/F5,512 PCF8570T/F5
PCF8570T/F5 9351 549 20518 PCF8570T/F5,518 PCF8570T/F5
PCF8570T 技术支持
档案名称 标题 类型 格式
PCF8570T 256 x 8-bit static low-voltage RAM with I2C-bus interface 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 PCF8570 I2C-bus extender Application note pdf
75016527 Extend standard I2C-bus devices without worrying about offset voltages; NXP I2C-bus extender PCF8570 in a proven application Brochure pdf
75016532 Extend the I2C-bus with advanced repeaters and hubs; NXP 2-channel I2C-bus repeaters PCF8570x 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 PCF8570 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