Counter section
| Table |
|
|
Pin name (Note 4) | CTR |
Counter type | Event counter |
Number of channels | 1 |
Input source | CTR screw terminal |
Resolution | 32 bits |
Schmidt trigger hysteresis | 20 mV to 100 mV |
Input leakage current | ±1 µA |
Maximum input frequency | 1 MHz |
High pulse width | 500 ns min |
Low pulse width | 500 ns min |
Input low voltage | 0 V min, 1.0 V max |
Input high voltage | 4.0 V min, 15.0 V max |
Note 4: CTR is a Schmitt trigger input |
Power
Table
Parameter | Conditions | Specification | |
|
|
| |
Supply current (Note 5) | No Load | 60 mA | |
Input power requirements |
|
| 4.75 V min, 5.25 V max |
(Note 6) |
|
|
|
USB +5 V power available | Measured at “USB +5 V” screw terminals | 4.4 V min, 5.25 V max | |
| (pins 10,14 and 30) |
| |
USB +5 V power output | Connected to: | [350 mA] – [total output source | |
current (Note 7) | | current] | |
| |
| |
| Connected to | [60 mA] – [total output source | |
| | current] | |
| |
| |
USB +5 V overcurrent | Resettable fuse | Hold current: 350 mA, typical | |
protection |
|
|
|
|
| Trip current: 700 mA typical | |
|
|
| |
|
|
|
|
|
|
| Trip/recovery time: 100 mS, max |
|
|
|
|
|
|
| On resistance: 1.3 Ohms max |
|
|
|
|
Note 5: This is the total (no load) current requirement for the
Note 6:
Note 7: See available source/sink current level in the "Digital input/output" section.