Industrial, Channel-Channel Isolated,
32-Bit Counter/Timers
Specifications
These specifications are typical at 25 °C unless otherwise noted.
PXI Trigger Bus (PXI Only)
Trigger lines <0..5>...........................................
PXI Star ............................................................
RTSI clock.........................................................
6
Isolated Inputs
1
1
Number of input channels................................ 26 (3 per counter and 2 extra PFIs)
Input type ......................................................... Driven reference to either supply or ground
(two terminals per input)
Power Requirements
Maximum input frequency ............................... 400 kHz
Minimum input pulse width............................. 1 µs
Input-to-input, input-to-output,
5 VDC ............................................................ 0.75A
3.3 VC ............................................................ 0.15A
and input-to-PC ground isolation..................... 60 VDC, continuous
Input waveform types ...................................... Any
Physical
Dimensions
PCI ............................................................ 17.5 cm x 10.7 cm (6.9 in. x 4.2 in.)
PXI ............................................................ 16.0 cm x 10.0 cm (6.3 in. x 3.9 in.)
I/O connector.................................................... 100-pin female, SCSI-II type
Voltage
Voltage range ................................................... Up to 48 VDC
Typical ON voltage ........................................... 2.5 V
Guaranteed ON voltage ................................... 4 V
Guaranteed OFF voltage................................... 0.8 V
Environmental
The NI 6624 is intended for indoor use only.
Current
Operating Environment
ON state current............................................... 2.2 mA min, 6 mA typ, 10 mA max
Ambient temperature range
OFF state current.............................................. 0.1 mA max
PCI ............................................................ 0 to 50 °C (Tested in accordance with
IEC-60068-2-1 and IEC-60068-2-2.)
PXI ............................................................ 0 to 55 °C (Tested in accordance with
IEC-60068-2-1 and IEC-60068-2-2.)
Relative humidity range ................................... 10 to 90ꢀ, noncondensing (Tested
in accordance with IEC-60068-2-56.)
Altitude ............................................................ 2,000 m (at 25 °C ambient temperature)
Protection
Current limit ..................................................... 10 mA max (over operating temperature range)
Reverse and overvoltage.................................. 60 VDC max continuous
Functionality with transient spikes.................. Up to 400 V peak
Propagation Delays (for a 5 V Input Signal)
LOW to HIGH.................................................... 350 ns typ
HIGH to LOW.................................................... 220 ns typ
Pollution Degree...............................................
2
Storage Environment
Isolated Outputs
Ambient temperature range............................. –20 to 70 °C (Tested in accordance with
Number of output channels .............................
8
IEC-60068-2-1 and IEC-60068-2-2.)
Output type....................................................... Sinking (low-side switch)
Output power requirement............................... 5 to 48 VDC (10 mA per channel, typical at 400 KHz)
Load voltage range........................................... 5 to 48 VDC
Switching current............................................. 100 mA per channel, max
Inrush current ................................................... 600 mA per channel, max
Maximum output frequency............................. 400 kHz
Minimum output pulse width........................... 1 µs
Output-to-output, output-to-input,
and output-to-PC ground isolation................... 60 VDC peak, continuous
Typical switching times (with a 5 V, 100 Ω load)
Turn on....................................................... 500 ns
Turn off....................................................... 150 ns
Output low maximum voltage
(with SH100-100-S2 cable) .............................. 0.47 V at 10 mA; 0.75 V at 100 mA
Output leakage current when OFF ................... 60 µA max
Relative humidity range ................................... 5 to 95ꢀ, noncondensing (Tested in
accordance with IEC-60068-2-56.)
Shock and Vibration (PXI Only)
Operational shock ............................................ 30 g peak, half-sine, 11 ms pulse (Tested in
accordance with IEC-60068-2-27. Test profile
developed in accordance with MIL-PRF-28800-F.)
Random vibration
Operating................................................... 5 to 500 Hz, 0.3 grms
Nonoperating............................................. 5 to 500 Hz, 2.4 grms (Tested in accordance with
IEC-60068-2-64. Nonoperating test profile exceeds
the requirements of MIL-PRF-28800-F, Class 3.)
Note: Clean the device with a soft, non-metallic brush. Make sure that the device is
completely dry and free from contaminants before returning it to service.
Safety
This product is designed to meet the requirements of the following
standards of safety for electrical equipment for measurement, control,
and laboratory use:
Protection
Short circuit (on output pins) ........................... 0.6 A min, 1.1 A max (stays off after detecting a
short circuit and retries to operate every 250 ms,
then automatically recovers after removing the short)
Reverse and overvoltage
• IEC 61010-1, EN 61010-1
• UL 61010-1
• CAN/CSA C22.2 No. 61010.1
(on output and Vdd pins) ................................... 60 VDC max continuous
Functionality with transient spikes
(on Vdd pins)...................................................... Up to 80 V peak
Note: For UL and other safety certifications, refer to the product label, or visit
ni.com/certification, search by model number or product line, and click the
appropriate link in the Certification column.
Timing I/O
Electromagnetic Compatibility
Number of counters ......................................... 8 up/down
Resolution......................................................... 32 bits
Maximum count ............................................... 4,294,967,295
Rollover times
Emissions.......................................................... EN 55011 Class A at 10 m
FCC Part 15A above 1 GHz
Immunity........................................................... EN 61326:1997 + A2:2001, Table 1
EMC/EMI.......................................................... CE, C-Tick, and FCC Part 15 (Class A) compliant
Note: For EMC compliance, operate this device with shielded cabling or a ribbon cable no
longer than 1 m.
100 kHz timebase ...................................... 11.93 hours
20 MHz timebase ...................................... 214.74 s
Base clocks available....................................... 100 kHz and 20 MHz
Base clock accuracy ......................................... 50 ppm ( 0.005ꢀ) over temperature
Maximum source frequency............................. 20 MHz
Data transfer .................................................... DMA (up to 3 channels), interrupts
CE Compliance
This product meets the essential requirements of applicable European
Directives, as amended for CE marking, as follows:
Low-Voltage Directive (safety)......................... 73/23/EEC
Electromagnetic Compatibility
Directive (EMC) ................................................ 89/336/EEC
Note: Refer to the Declaration of Conformity (DoC) for this product for any additional regulatory
compliance information. To obtain the DoC for this product, visit ni.com/certification, search by
model number or product line, and click the appropriate link in the Certification column.
RTSI Trigger Lines (PCI Only)
Trigger lines <0..6>...........................................
RTSI clock.........................................................
7
1
National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com 3
NI [ National Instruments ]
