Counter/Timer Specifications - Data Translation DT9812 Series User Manual

Counter/Timer Specifications

Table 26 lists the counter/timer specifications for the DT9812, DT9813, and DT9814 Series
modules.
Number of counter/timers
Counter/timer modes
Resolution
Minimum pulse width:
(minimum amount of time it takes a
C/T to recognize an input pulse)
Logic family
Inputs
Input logic load:
High input voltage:
Low input voltage:
Low input current:
Outputs
High output:
Low output:
High output current (source):
Low output current (sink):
ESD protection (per spec)
Arc:
Contact:
Internal clock frequency
External clock divider
a. The resolution is 16-bits for rate generation operations.
Table 26: Counter/Timer Specifications
DT9812 Series, DT9813 Series, DT9814 Series
Feature
1
Event counting,
frequency measurement, edge-to-edge
measurement,
rate generation
32-bit
200 ns
TTL
Level sensitive
1 TTL Load
2.4 V min
0.8 V max
–0.4 mA max
2.8 V min
0.6 V max
2 mA
12 mA
8 kV
4 kV
15 Hz to 12 MHz
2 to 65536
Specifications
a
Specifications
107