IC元器件

PCF8574RGYR

参考价格:$0.894-$1.91

Texas Instruments 接口 - I/O 扩展器

PCF8574RGYR 供应商

PCF8574RGYR 属性参数

  • 产品培训模块:I2C and SMBus Solutions
  • 标准包装:1
  • 类别:集成电路 (IC)
  • 家庭:接口 - I/O 扩展器
  • 系列:-
  • 接口:I²C
  • 输入/输出数:8
  • 中断输出:
  • 频率 - 时钟:100kHz
  • 电源电压:2.5 V ~ 6 V
  • 工作温度:-40°C ~ 85°C
  • 安装类型:表面贴装
  • 封装/外壳:20-VFQFN 裸露焊盘
  • 供应商设备封装:20-VQFN-EP(3.5x4.5)
  • 包装:®
  • 包括:POR
  • 配用:568-3615-ND - DEMO BOARD I2C
  • 其它名称:296-15173-6

产品特性

  • Low Standby-Current Consumption of 10 µA Max
  • I2C to Parallel-Port Expander
  • Open-Drain Interrupt Output
  • Compatible With Most Microcontrollers
  • Latched Outputs With High-Current Drive Capability for Directly Driving LEDs
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

产品概述

This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 6-V VCC operation.The PCF8574 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock (SCL), serial data (SDA)].The device features an 8-bit quasi-bidirectional I/O port (P0–P7), including latched outputs with high-current drive capability for directly driving LEDs. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal. At power on, the I/Os are high. In this mode, only a current source to VCC is active.

PCF8574RGYR 数据手册

PCF8574RGYR 电路图