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PCF8575C

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具有中断功能的 16 位 4.5V 至 5.5V I2C/SMBus I/O 扩展器

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PCF8575C

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产品详情

Number of I/Os 16 Features Interrupt pin Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Addresses 8 Rating Catalog Frequency (max) (MHz) 0.4 Operating temperature range (°C) -40 to 85
Number of I/Os 16 Features Interrupt pin Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Addresses 8 Rating Catalog Frequency (max) (MHz) 0.4 Operating temperature range (°C) -40 to 85
SOIC (DW) 24 159.65 mm² 15.5 x 10.3 SSOP (DB) 24 63.96 mm² 8.2 x 7.8 SSOP (DBQ) 24 51.9 mm² 8.65 x 6 TSSOP (PW) 24 49.92 mm² 7.8 x 6.4 TVSOP (DGV) 24 32 mm² 5 x 6.4 VQFN (RGE) 24 16 mm² 4 x 4
  • I2C to Parallel-Port Expander
  • Open-Drain Interrupt Output
  • Low Standby-Current Consumption of
    10 µA Maximum
  • Compatible With Most Microcontrollers
  • 400-kHz Fast I2C Bus
  • Address by Three Hardware Address Pins
    for Use of up to Eight Devices
  • Latched Outputs With High-Current Drive
    Capability for Directly Driving LEDs
  • Latch-Up Performance Exceeds 100 mA
    Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model
    • 200-V Machine Model
    • 1000-V Charged-Device Model
  • I2C to Parallel-Port Expander
  • Open-Drain Interrupt Output
  • Low Standby-Current Consumption of
    10 µA Maximum
  • Compatible With Most Microcontrollers
  • 400-kHz Fast I2C Bus
  • Address by Three Hardware Address Pins
    for Use of up to Eight Devices
  • Latched Outputs With High-Current Drive
    Capability for Directly Driving LEDs
  • Latch-Up Performance Exceeds 100 mA
    Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model
    • 200-V Machine Model
    • 1000-V Charged-Device Model

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 4.5-V to 5.5-V VCC operation.

The PCF8575C provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface serial clock (SCL) and serial data (SDA).

The device features a 16-bit quasi-bidirectional input/output (I/O) port (P07–P00, P17–P10), 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 in 3-state mode. The strong pullup to VCC allows fast-rising edges into heavily loaded outputs. This device turns on when an output is written high and is switched off by the negative edge of SCL. The I/Os should be high before being used as inputs. After power on, as all the I/Os are set to 3-state, all of them can be used as inputs. Any change in setting of the I/Os as either inputs or outputs can be done with the write mode. If a high is applied externally to an I/O that has been written earlier to low, a large current (IOL) flows to GND.

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 4.5-V to 5.5-V VCC operation.

The PCF8575C provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface serial clock (SCL) and serial data (SDA).

The device features a 16-bit quasi-bidirectional input/output (I/O) port (P07–P00, P17–P10), 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 in 3-state mode. The strong pullup to VCC allows fast-rising edges into heavily loaded outputs. This device turns on when an output is written high and is switched off by the negative edge of SCL. The I/Os should be high before being used as inputs. After power on, as all the I/Os are set to 3-state, all of them can be used as inputs. Any change in setting of the I/Os as either inputs or outputs can be done with the write mode. If a high is applied externally to an I/O that has been written earlier to low, a large current (IOL) flows to GND.
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类型 标题 下载最新的英语版本 日期
* 数据表 PCF8575C Remote 16-Bit I2C AND SMBus Low-Power I/O Expander with Interrupt Output 数据表 (Rev. F) PDF | HTML 2015年 1月 25日
应用手册 I2C Dynamic Addressing 2019年 4月 25日
应用手册 Choosing the Correct I2C Device for New Designs PDF | HTML 2016年 9月 7日
应用手册 Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015年 12月 2日
应用手册 Understanding the I2C Bus PDF | HTML 2015年 6月 30日
应用手册 Maximum Clock Frequency of I2C Bus Using Repeaters 2015年 5月 15日
应用手册 I2C Bus Pull-Up Resistor Calculation PDF | HTML 2015年 2月 13日
应用手册 Programming Fun Lights With TI's TCA6507 2007年 11月 30日
更多文献资料 PCF8574 and PCF8574A Application Clip 2004年 8月 18日
更多文献资料 I2C Application Clip 2004年 7月 19日
应用手册 Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004年 7月 8日
更多文献资料 I2C and Serial Bus Devices Application Clip 2003年 7月 10日

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用户指南: PDF
英语版 (Rev.A): PDF
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封装 引脚 下载
SOIC (DW) 24 查看选项
SSOP (DB) 24 查看选项
SSOP (DBQ) 24 查看选项
TSSOP (PW) 24 查看选项
TVSOP (DGV) 24 查看选项
VQFN (RGE) 24 查看选项
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订购和质量

包含信息：
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  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
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  • 封装厂地点

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