Non-Volatile Memory; Power; General; Environmental - Measurement Computing USB-1208LS User Manual

USB-1208LS User's Guide

Non-volatile memory

Parameter
Memory size
Memory configuration

Power

Parameter
Supply current (Note 5)
+5V USB power available (Note 6)
Output current (Note 7)
This is the total current requirement for the USB-1208LS which includes up to 5 mA for the status
Note 5:
LED.
Self-powered refers to USB hubs and hosts with a power supply. Bus-powered refers to USB hubs and
Note 6:
hosts without their own power supply.
This refers to the total amount of current that can be sourced from the USB +5V, analog outputs, and
Note 7:
digital outputs.

General

Parameter
USB controller clock error
Device type
Device compatibility

Environmental

Parameter
Operating temperature range
Storage temperature range
Humidity
Table 10. Memory specifications
Specification
8192 bytes
Address Range Access
0x0000 – 0x17FF Read/write
0x1800 – 0x1EFF Read/write
0x1F00 – 0x1FEF Read/write
0x1FF0 – 0x1FFF Read/write
Table 11. Power specifications
Conditions
Connected to self-powered hub
Connected to bus-powered hub
Connected to bus-powered hub
Connected to bus-powered hub
Table 12. General specifications
Conditions Specification
25 °C ±30 ppm max
0 °C to 70 °C ±50 ppm max
USB 1.1 low-speed
USB 1.1, USB 2.0
Table 13. Environmental specifications
Specification
–0 °C to 70 °C
–40 °C to 70 °C
0% to 90% non-condensing
Description
A/D data (4K samples)
User data area
Calibration data
System data
21
Specifications
Specification
20 mA
4.5 V min, 5.25 V max
4.1 V min, 5.25 V max
450 mA min, 500 mA max
50 mA min, 100 mA max