XRA1200 8-Bit I²C/SMBus GPIO Expander

The XRA1200/1200P is an 8-bit GPIO expander with an I²C/SMBus interface. After power-up, the XRA1200 has internal 100K ohm pull-up resistors on each I/O pin that can be individually enabled. The XRA1200P have the internal pull-up resistors enabled upon power-up in case it is necessary for the inputs to be in a known state. In addition, the GPIOs on the XRA1200/1200P can individually be controlled and configured. As outputs, the GPIOs can be outputs that are high, low or in three-state mode. The three-state mode feature is useful for applications where the power is removed from the remote devices, but they may still be connected to the GPIO expander. As inputs, the internal pull-up resistors can be enabled or disabled and the input polarity can be inverted. The interrupt can be programmed for different behaviors. The interrupts can be programmed to generate an interrupt on the rising edge, falling edge or on both edges. The interrupt can be cleared if the input changes back to its original state or by reading the current state of the inputs. The XRA1200 are enhanced versions of other 8-bit GPIO expanders with an I²C/SMBus interface. The XRA1200 is pin and software compatible with the CAT9534 and PCA9534. The XRA1200/1200P are also pin compatible with the PCA9554A and TCA9554A. The XRA1200/1200P are available in 16-pin QFN and 16-pin TSSOP packages.

技术特性
  • 1.65V to 3.6V operating voltage
  • 8 General Purpose I/Os (GPIOs)
  • 5V tolerant inputs
  • Maximum stand-by current of 1uA at +1.8V
  • I²C/SMBus bus interface
    • I²C clock frequency up to 400kHz
    • Noise filter on SDA and SCL inputs
    • Up to 32 I²C Slave Addresses
  • Individually programmable inputs
    • Polarity inversion
    • Individual interrupt enable
    • Rising edge and/or Falling edsge interrupt
    • Input filter
  • Individually programmable outputs
    • Output Level Control
    • Output Three-State Control
  • Open-drain active low interrupt output
  • Pin and software compatible with CAT9534 and PCA9534
  • 3kV HBM ESD protection per JESD22-A114F
  • 200mA latch-up performance per JESD78B
应用领域 APPLICATION
  • Personal Digital Assistants (PDA)
  • Cellular Phones/Data Devices
  • Battery-Operated Devices
  • Global Positioning System (GPS)
  • Bluetooth
技术指标
结构 Linear
应用 General
频道 8
最低输入电压(V) 4.2
最高输入电压(V) 30
最高LEDs串联 8
漏失电压 500
每個频道最强电流(mA) 100
LED匹配精确度(%) 1.5
CtrlType TTL
订购信息 Ordering Information
器件型号 封装编码 有害物质限制 No. of
GPIOs
Operating
Temperature Range
状态 立刻购买 申请样片
XRA1200IL16-F QFN16 8 -40°C to +85°C Active
XRA1200IL16TR-F QFN16 8 -40°C to +85°C Active
XRA1200IG16-F TSSOP16 8 -40°C to +85°C Active
XRA1200IG16TR-F TSSOP16 8 -40°C to +85°C Active
功能框图 Functional Block Diagram

XRA1200 功能框图

应用技术支持与电子电路设计开发资源下载 版本信息 大小
XRA1200 数据资料DataSheet下载:pdf Rev.V2 2 页