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GPIO32 Expander Board

The GPIO32 Expander Board is an IO24 accessory board that allows up to 32 I/O pins to be controlled through a single Port connection on Tempero Systems IO24 Controller Range. Can be controlled by any module that has an SPI Communications function.


SKU: PRO-I/O GPIO Exp Board Category:

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The GPIO32 Expander Board is an accessory board that allows the implementation of an additional 32 GPIO (General Purpose Input /Output) you can control from a single port on the existing I/O 24 Range. The Tempero I/O 24 Range consists of Ether I/O 24 R, Ether I/O 24 DIP R, USB I/O 24 R.

The board consists of two MCP23S17 GPIO expanders, split up into four 8 bit Ports (2 Ports per MCP23S17).

The  GPIO32 Expander Board can be controlled by any module that has an SPI Communications function.

  • 2 x MCP23S17 GPIO expander IC’s
  • 4 x I/O ports matching configuration of I/O 24 Port.
  • Hardware addressable pins for each SPI device
  • 72mm Standard width for DIN Rail Modules
  • Compact measurements 40 x 72 x 11mm ( DIN Rail mountable with adaptor)
  • The voltage on VDD concerning VSS.:  ‐0.3V to +5.5V
  • The voltage on all other pins concerning VSS:  ‐0.6V to VDD +0.6V
  • Storage temperature .: ‐65°C to +150°C
  • Ambient temperature with power applied: ‐40°C to +125°C
  • Total Power dissipation : 700mW
  • Maximum Current out of
  • VSS pin: 150mA
  • into VDD pin: 125mA
  • Maximum output current
  • sunk by any output pin: 25mA
  • sourced by any output pin.: 25mA


NOTE: When connecting this device to the USB I/O 24 as you may exceed the maximum current draw allowed via the USB specifications.


Development  Resources:

Control  IC: MCP23S17


1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angle and display monitor

GPIO32 Expander Board

SKU: PRO-I/O GPIO Exp Board Category:


82 in stock

5 + 5%
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PRO-I/O GPIO Exp Board GPIO32 Expander Board - Datasheet Document Download

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