Counters - Measurement Computing PCI-DAS6031 User Manual

PCI-DAS6031 & PCI-DAS6033 User's Guide

Counters

User counter type
Number of channels
Resolution
Compatibility
CTRn base clock source
(software selectable)
Internal 10 MHz clock source stability
Counter n gate
Counter n output
Clock input frequency
High pulse width (clock input)
Low pulse width (clock input)
Gate width high
Gate width low
Input low voltage
Input high voltage
Output low voltage
Output high voltage
Table 18. Counter specifications
82C54
2
16-bits
5 V/TTL
! Internal 10 MHz
! Internal 100 kHz
! External connector (CTRn CLK)
50 ppm
Available at connector (CTRn GATE)
Available at connector (CTRn OUT)
10 MHz max
15 ns min
25 ns min
25 ns min
25 ns min
0.8 V max
2.0V min
0.4V max
3.0V min
6-8
Specifications