Measurement-computing USB-CTR04 Manuel d'utilisateur télécharger pdf (Page 22)

USB-CTR04 User's Guide Specifications

Memory

Table 6. Memory specifications

Parameter Specification

FIFO

8 KS

Non-volatile EEPROM

32 KB (10 KB firmware storage, 22 KB user data)

Power

Table 7. Power specifications

Parameter Condition Specification

Supply current, USB source

During enumeration

< 100 mA

After USB enumeration

< 500 mA

+VO power available After USB enumeration 5 V, ± 5%

+VO output current

After USB enumeration

24 mA max per pin, constrained to 240 mA

across all output pins (counter outputs, timer

outputs, digital outputs, pacer clock output, and

+VO)

USB

Table 8. USB specifications

Parameter Specification

USB device type

USB 2.0 (high-speed)

Device compatibility

USB 1.1, USB 2.0, USB 3.0

USB cable type

A-B cable, UL type AWM 2725 or equivalent. (min 24 AWG VBUS/GND,

min 28 AWG D+/D–)

USB cable length

3 m (9.84 ft) max

Environmental

Table 9. Environmental specifications

Parameter Specification

Operating temperature range

0 °C to 50 °C

Storage temperature range –40 °C to 70 °C

Humidity

0% to 90% non-condensing

Mechanical

Table 10. Mechanical specifications

Parameter Specification

Dimensions (L × W × H)

127 × 89.9 × 35.6 mm (5.00 × 3.53 × 1.40 in.)

User connection length

3 m (9.84 ft) max

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