Measurement-computing USB-1608GX-2AO-OEM Instrukcja Użytkownika Pobierz pdf (Strona 22)

USB-1608GX-2AO-OEM User's Guide Specifications

Timer

Table 14. Timer specifications

Parameter Specification

Terminal name TMR

Timer type PWM output with count, period, delay, and pulse width registers

Output value Default state is idle low with pulses high, Software-selectable output invert

Internal clock frequency 64 MHz

High pulse width 15.625 ns min

Low pulse width 15.625 ns min

Output high voltage 4.4 V min (IOH = –50 µA)

3.76 V min (IOH = –2.5 mA)

Output low voltage 0.1 V max (IOL = 50 µA)

0.44 V max (IOL = 2.5 mA)

Output current ±2.5 mA max

Memory

Table 15. Memory specifications

Parameter Specification

Data FIFO 4 kS analog input/2 kS analog output

Non-volatile memory 32 KB (28 KB firmware storage, 4 KB calibration/user data)

Power

Table 16. Power specifications

Parameter Condition Specification

Supply current (Note 3) Quiescent current 260 mA

+5 V user output voltage range Available at terminal block pin 43 4.5 V min to 5.25 V max

+5 V user output current Available at terminal block pin 43 10 mA max

Note 3: This is the total quiescent current requirement for the device that includes up to 10 mA for the Status

LED. This does not include any potential loading of the digital I/O bits, +5V terminal, or the AOUTx

outputs.

USB

Table 17. USB specifications

Parameter Specification

USB device type USB 2.0 (high-speed)

Device compatibility USB 1.1, USB 2.0

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 m (9.84 ft) max

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