Owner's manual

OM-USB-TEMP User's Guide Specifications
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Microcontroller
Table 12. Microcontroller specifications
Type Two high-performance 8-bit RISC microcontrollers
USB +5V voltage
Table 13. USB +5V voltage specifications
Parameter Conditions Specification
USB +5V (VBUS) input voltage
range
4.75 V min. to 5.25 V max.
Power
Table 14. Power specifications
Parameter Conditions Specification
Supply current USB enumeration <100 mA
Supply current
(Note 16)
Continuous mode 140 mA typ.
User +5V output voltage range
(terminal block pin 21 and pin 47)
Connected to self-powered hub. (Note 17) 4.75 V min. to
5.25 V max.
User +5V output current
(terminal block pin 21 and pin 47)
Bus-powered and connected to a self-powered
hub. (Note 17)
10 mA max.
Isolation Measurement system to PC 500 VDC min.
Note 16: This is the total current requirement for the OM-USB-TEMP which includes up to 10 mA for the
status LED.
Note 17: Self-Powered Hub refers to a USB hub with an external power supply. Self-powered hubs allow
a connected USB device to draw up to 500 mA.
Root Port Hubs reside in the PC’s USB Host Controller. The USB port(s) on your PC are root
port hubs. All externally powered root port hubs (desktop PC’s) provide up to 500 mA of current
for a USB device. Battery-powered root port hubs provide 100 mA or 500 mA, depending upon
the manufacturer. A laptop PC that is not connected to an external power adapter is an example
of a battery-powered root port hub.
USB specifications
Table 15. USB specifications
USB device type USB 2.0 (full-speed)
Device compatibility USB 1.1, USB 2.0
Self-powered, 100 mA consumption max
USB cable type A-B cable, UL type AWM 2527 or equivalent. (min 24 AWG VBUS/GND,
min 28 AWG D+/D–)
USB cable length 3 meters max.