TCA9539 具有中断输出、复位和配置寄存器的远程 16 位 I2C 和 SMBus 低功耗 I/O 扩展器 | 德州仪器 TI.com.cn

TCA9539 (正在供货) 具有中断输出、复位和配置寄存器的远程 16 位 I2C 和 SMBus 低功耗 I/O 扩展器

 

描述

The TCA9539 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus protocol). The device can operate with a power supply voltage (VCC) range from 1.65 V to 5.5 V. The device supports 100-kHz (I2C Standard mode) and 400-kHz (I2C Fast mode) clock frequencies. I/O expanders such as the TCA9539 provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and other similar devices.

The features of the TCA9539 include an interrupt that is generated on the INT pin whenever an input port changes state. The A0 and A1 hardware selectable address pins allow up to four TCA9539 devices on the same I2C bus. The device can be reset to its default state by cycling the power supply and causing a power-on-reset. Also, the TCA9539 has a hardware RESET pin that can be used to reset the device to its default state.

特性

  • I2C to Parallel Port Expander
  • Low Standby-Current Consumption
  • Open-Drain Active-Low Interrupt Output
  • Active-Low Reset Input
  • 5-V Tolerant I/O Ports
  • Compatible With Most Microcontrollers
  • 400-kHz Fast I2C Bus
  • Input and Output Configuration Register
  • Polarity Inversion Register
  • Internal Power-on Reset
  • No Glitch on Power Up
  • Noise Filter on SCL and SDA Inputs
  • Address by Two Hardware Address Pins for Use
    of up to Four 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 (A114-A)
    • 1000-V Charged-Device Model (C101)

参数

与其它产品相比 I2C 通用 I/O (GPIO) 邮件 下载到电子表格中
Part number 立即下单 Number of I/Os VCC (Min) (V) VCC (Max) (V) GPIO Frequency (Max) (kHz) Features Addresses Rating Operating temperature range (C) Package Group
TCA9539 立即下单 16     1.65     5.5     VCC     400     Configuration Registers
Interrupt Pin
Reset Pin    
4     Catalog     -40 to 85     TSSOP | 24
VQFN | 24
WQFN | 24    
TCA6408A 立即下单 8     1.65     5.5     Adjustable     400     Configuration Registers
Interrupt Pin
Reset Pin    
2     Catalog     -40 to 85     TSSOP | 16
UQFN | 16
VQFN | 16    
TCA9538 立即下单 8     1.65     5.5     VCC     400     Configuration Registers
Interrupt Pin
Reset Pin    
4     Catalog     -40 to 85     SSOP | 16
TSSOP | 16    
TCA9539-Q1 立即下单 16     1.65     3.6     VCC     400     Configuration Registers
Interrupt Pin
Reset Pin    
4     Automotive     -40 to 125     TSSOP | 24