NATIONAL INSTRUMENT PRODUCTS / NI 6501 / NI DAQ

24 digital I/O lines; 1 32-bit counter

Overvoltage protection, 8.5 mA current drive

Built-in screw terminals or universal 34-pin connector (OEM version)

USB2.0 full speed (12 Mb/s) bus interface

Convenient bus power

Specification Summary

General

Product Family

digital I/O

Measurement Type

number

Form Factor

USB.

Operating System / Target

Linux

MacOS

Pocket PC

Windows

RoHS Compliant

yes

Isolation Type

none

analog input

single-ended channel

0

differential channel

0

analog output

Number of Channels

0

Digital I/O

Bidirectional Channels

twenty four

Input-Only Channels

0

Output-Only Channels

0

Timing

software

Logic Levels

TTL

Programmable Input Filters

no

Supports Programmable Power-Up States?

no

Digital Input

InputType

source

Drain

Maximum Voltage Range

0V - 5V

Digital Output

OutputType

source

Drain

Current Drive Single

8.5 mA

Current Drive All

65 mA

Maximum Voltage Range

0V - 5V

Counters / Timers

Watchdog Timer

no

Counters

1

Number of DMA Channels

0

Buffered Operations

no

Debouncing / Glitch Removal

no

Max Source Frequency

5 MHz

Pulse Generation

no

size

32 bits

Timebase Stability

50 percent

Logic Levels

TTL

Physical Specifications

Length

8.51 cm

Width

8.18 cm

Height

2.31 cm

I/O Connector

screw terminal

USB Power

Bus Powered