Counter Section; Memory; Microcontroller; Power - Measurement Computing USB-1616FS User Manual

USB-1616FS User's Guide
SYNC is a Schmitt trigger input and is over-current protected with a 200 Ohm series resistor.
Note 4:

Counter section

Pin name
Counter type
Number of channels
Resolution
Counter/timer read/write rates (software paced)
Schmidt trigger hysteresis
Input leakage current
Maximum input frequency
High pulse width
Low pulse width
Input low voltage
Input high voltage

Memory

Data FIFO
EEPROM
EEPROM configuration

Microcontroller

Type
Program memory
Data memory

Power

Parameter
Supply current
Supply current (Note 5)
User +5 V output voltage range (Note 6)
User +5V output current
(Note 7)
This is the total current requirement for the USB-1616FS which includes up to 10mA for the
Note 5:
status LED's.
Output voltage range assumes input power supply voltage is within specified limits
Note 6:
This refers to the total amount of current that can be sourced from the 5 V screw terminal (pin
Note 7:
48) for general use. This spec includes any additional contribution due to DIO loading.
CTR
Event counter
1
32 bits
Counter Read – System dependent, 33 to 1000 reads per second.
Counter Clear – System-dependent, 33 to 1000 writes per second.
20 mV to 100 mV
± 1 µA
1 MHz
500 ns min.
500 ns min.
1.0 V min., -0.5 V max.
4.0 V min., 5.5 V max.
32,768 samples, 65,536 bytes
1,024 bytes
Address range Access
0x000-0x07F Reserved
0x080-0x1FF Read/Write
0x200-0x3FF Read/Write
High performance 8-bit RISC microcontroller
16,384 words
2,048 bytes
Conditions
USB enumeration
Continuous mode
Available at terminal block pin 48
Available at terminal block pin 48
4-5
Specifications
Description
128 bytes system data
384 bytes calibration data
512 bytes user area
Specification
<100 mA
350 mA typ.
4.0 V min.
5.25 V max.
50 mA max.