Digilent USB-DIO24/37 24-Channel Digital I/O Device

Features and Specifications

• 37-pin I/O connector
• CTR signal is the input to the 32-bit external event counter
• Digital type: 82C55
• USB connector
• LED

The USB-DIO24/37 is a device that can be connected to a USB 1.1 or USB 2.0 port on a Microsoft Windows operating system. It has 24 digital input/output lines and one 32-bit external event counter. The device is powered by the +5 volt USB supply and does not require any external power. All I/O connections are made to a 37-pin connector. The digital channels are pulled up to +5V with 47 kilohm resistors. The device has an on-board 82C55 programmable peripheral interface chip that provides the 24 discrete digital I/O lines in four ports. Each digital port can be configured independently for either input or output. The USB-DIO24/37 board is plug-and-play, which means that it does not require any jumpers or switches to be set. The system's plug-and-play software sets all board addresses.

USB-DIO24 Series Overview

The USB-DIO24 Series of digital devices (USB-DIO24/37 or USB-DIO24H/37) 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 24 DIO channels are configured for either two banks of eight ports and two banks of four ports, or three banks of eight ports. Each port is independently configurable for input or output. 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 has all the functionality of the USB-1024 Series. However, USB-DIO24 Series are board-only while the USB-1024 Series are shipped in a case.

What's in the Box

• USB-DIO24/37 24-Channel USB Device
• USB cable
• DAQami Quick Start Printed Insert