Measurement-computing USB-1608FS-Plus Manuale Utente Scaricare il pdf (Pagina 20)

USB-1608FS-Plus User's Guide Specifications

Counter section

Table 8. Counter specifications

Parameter

Specification

Pin name

CTR

Counter type

Event counter

Number of channels

Input type

Schmitt trigger, 47 kΩ pull-down to ground

Input source

CTR screw terminal

Resolution

32 bits

Schmitt trigger hysteresis

1.01 V typ

0.6 V min

1.5 V max

Input high voltage threshold

2.43 V typ

1.9 V min

3.1V max

Input high voltage limit

5.5 V absolute max

Input low voltage threshold

1.42 V typ

1.0 V min

2.0 V max

Input low voltage limit

-0.5 V absolute min

0 V recommended min

Input frequency

1 MHz max

High pulse width

500 ns min

Low pulse width

500 ns min

Memory

Table 9. Memory specifications

Parameter

Specification

Data FIFO

32,768 samples, 65,536 bytes

EEPROM

2,048 bytes (768 bytes calibration, 256 bytes user, 1,024 bytes DAQFlex)

Microcontroller

Table 10. Microcontroller specifications

Parameter

Specification

Type

High performance 32-bit RISC microcontroller

1 2 ... 15 16 17 18 19 20 21 22 23 24

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