Digilent MCC USB-DIO24 – Digital I/O USB Device, 24-Channel, 37-Pin Connector

• 37-pin connector provides 24 digital I/O, 1 counter, 6 ground, and 2 power connections
• Digital I/O port configured as two 8-bit and two 4-bit ports
• Configure each digital I/O port independently for input (default) or output
• CTR signal is the input to the 32-bit external event counter
• 5.5 V max input voltage

The Digilent MCC USB-DIO24 Series of digital devices provide logic-level, bidirectional digital I/O and counter operation. Both devices feature 24 bits of digital I/O and one 32-bit external event counter. The devices are powered by the +5-volt USB supply. All I/O connections are made to a 37-pin connector. The USB-DIO24 series devices are board only and not encased.

The USB-DIO24H/37 provides 24 high current channels and is designed to emulate 82C55 mode 0. Outputs are high-drive TTL that can source 15 mA and sink 64 mA.

Software support includes DAQami, an out-of-the-box application for data logging, visualization, and signal generation. Data can be viewed in real-time or post-acquisition on user-configurable displays. Drivers are included for the most popular applications and programming languages including Visual C++, Visual C#, Visual Basic.NET, DASYLab, LabVIEW, Linux, and Python.

The USB-DIO24 series functions are illustrated in the block diagram shown here.