PCF8570 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。
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功能框图
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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 |
PCF8570 技术支持
| 档案名称 |
标题 |
类型 |
格式 |
| PCF8570 |
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 |
