Measurement Computing BTH-1208LS - Manual (Page 25)

BTH-1208LS User's Guide Specifications
25
Parameter Specification
Input low voltage limit –0.5 V absolute min
0 V recommended min
Memory
Table 15. Memory specifications
Parameter Specification
FIFO 12K (12,288) samples
Non-volatile EEPROM 2,048 bytes (768 bytes calibration, 256 bytes user, 1,024 bytes firmware use)
Microcontroller
Table 16. Microcontroller specifications
Parameter Specification
Type High performance 16-bit RISC microcontroller
Power
Table 17. Power specifications
Parameter Condition Specification
Supply current, USB source During enumeration < 100 mA
After USB enumeration or
connected to USB charger /
supply < 500 mA
Battery power (Note 8) Two AA cells
Alkaline, NiCd, and NiMH cells supported
Battery charging NiMH and NiCd charging supported.
Alkaline cells automatically detected and not
charged.
+VO power available After USB enumeration or
Bluetooth connection 3.3 V nominal
+VO output current After USB enumeration or
Bluetooth connection 50 mA max
Note 8: When operating from batteries there is a user configurable power-off timer that will turn the device off
when there is no host connection for the specified amount of time. The timer can be disabled or set to
a value from 1 – 255 minutes.
Bluetooth
Table 18. Bluetooth specifications
Parameter Specification
Device type (Note 9) Bluetooth 2.1
Device compatibility Backwards compatible with Bluetooth 2.0, 1.2, and 1.1
Bluetooth profile Serial Port Profile (SPP)
Radio range Class II, 10 m typ
Note 9: The Bluetooth radio is disabled when the device is connected to a USB host.