Microcontroller, Power, External power input – Measurement Computing USB-1608HS User Manual
Page 27: Usb specifications, Environmental

USB-1608HS User's Guide
Specifications
27
Microcontroller
Table 11. Microcontroller specifications
Type
High performance 8-bit RISC microcontroller
Program memory
16,384 words
Data memory
2,048 bytes
Power
Table 12. Power specifications
Parameter
Conditions
Specification
Supply current (see Note 5)
Continuous mode
920 mA
+5V EXT output voltage range (see Note 6)
4.5 V minimum, 5.25 V maximum
+5V EXT output current (see Note 7)
+10 mA maximum
Note 5:
This is the total current requirement for the USB-1608HS. This specification does not include
any additional contribution due to +5VEXT output current, analog output source current, or DIO
loading.
Note 6:
Output voltage range assumes input power supply is within specified limits.
Note 7:
This refers to the total amount of current that can be sourced from the +5VEXT terminal pin for
general use.
External power input
Table 13. External power input specifications
External power input
+5.0 VDC (+5 V power supply included)
External power adapter
+5 V, ±5% @ 2 A
USB specifications
Table 14. USB specifications
USB device type
USB 2.0 (high-speed)
USB device compatibility
USB 1.1, 2.0
USB cable length
Three meters maximum.
USB cable type
A-B cable, UL type AWM 2527 or equivalent (minimum 24 AWG
VBUS/GND, minimum 28 AWG D+/D-).
Environmental
Table 15. Environmental specifications
Operating temperature range
0 to 55 °C maximum
Storage temperature range
-40 to 85 °C maximum
Humidity
0 to 90% non-condensing