Measurement Computing USB-3101 - Manual (Page 21)

USB-3101 User's Guide Specifications
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Memory
Table 9. Memory specifications
EEPROM 256 bytes
EEPROM configuration Address range Access Description
0x000-0x0FF Read/write 256 bytes user data
Microcontroller
Table 10. Microcontroller specifications
Type High performance 8-bit RISC microcontroller
Program memory 16,384 words
Data memory 2,048 bytes
Power
Table 11. Power specifications
Parameter Conditions Specification
Supply current USB enumeration < 100 mA
Supply current (Note 7) Quiescent current 140 mA typ.
+5V user output voltage range (Note 8) Available at terminal block pin 56 4.5 V min, 5.25 V max.
+5V user output current (Note 9) Available at terminal block pin 56 10 mA max.
Note 7: This is the total quiescent current requirement for the USB-3101 which includes up to 10 mA for
the status LED. This does not include any potential loading of the digital I/O bits, +5V user
terminal, or the VOUTx outputs.
Note 8: Output voltage range assumes USB power supply is within specified limits.
Note 9: This refers to the total amount of current that can be sourced from the +5V user terminal (pin 56)
for general use. This specification also includes any additional contribution due to DIO loading.
USB specifications
Table 12. USB specifications
USB device type USB 2.0 (full-speed)
USB device compatibility USB 1.1, 2.0
USB cable length 3 meters max.
USB cable type A-B cable, UL type AWM 2527 or equivalent (min 24 AWG VBUS/GND,
min 28 AWG D+/D-).
Environmental
Table 13. Environmental specifications
Operating temperature range 0 to 70 °C
Storage temperature range -40 to 85 °C
Humidity 0 to 90% non-condensing