TCA9535 具有中断输出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

TCA9535 (正在供货) 具有中断输出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 TCA9535 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 ranging from 1.65 V to 5.5 V.

The TCA9535 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active-high or active-low operation) registers. At power on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits.

The TCA9535 is identical to the TCA9555, except that the TCA9535 does not include the internal I/O pull-up resistor, which requires pull-ups and pull-downs on unused I/O pins when configured as an input and undriven.

特性

  • I2C to Parallel Port Expander
  • Wide Power Supply Voltage Range of 1.65 V to 5 V
  • Low Standby-Current Consumption
  • Open-Drain Active-Low Interrupt Output
  • 5-V Tolerant I/O Ports
  • 400-kHz Fast I2C Bus
  • Polarity Inversion Register
  • 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 (A114-A)
    • 1000-V Charged-Device Model (C101)

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参数

与其它产品相比 I2C 通用 I/Os (GPIOs) 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) Frequency (Max) (kHz) Features Addresses Rating Operating temperature range (C) Package Group
TCA9535 立即下单 16     1.65     5.5     400     Configuration registers
Interrupt pin    
8     Catalog     -40 to 85     SSOP | 24
TSSOP | 24
VQFN | 24
WQFN | 24