beautypg.com

Timing i/o – National Instruments AT E Series User Manual

Page 131

background image

Appendix A

Specifications for AT-MIO-16XE-10 and AT-AI-16XE-10

AT E Series User Manual

A-26

ni.com

Power-on state ........................................Input (high-impedance)

Data transfers ..........................................Programmed I/O

Max transfer rate (1 word = 8 bits).........50 kwords/s, system dependent

Constant sustainable rate ........................1 to 10 kwords/s, typical

Timing I/O

Number of channels................................2 up/down counter/timers,

1 frequency scaler

Resolution

Counter/timers .................................24 bits

Frequency scaler..............................4 bits

Compatibility ..........................................TTL/CMOS

Base clocks available

Counter/timers .................................20 MHz, 100 kHz

Frequency scaler..............................10 MHz, 100 kHz

Base clock accuracy................................±0.01%

Max source frequency.............................20 MHz

Min source pulse duration ......................10 ns, edge-detect mode

Min gate pulse duration ..........................10 ns, edge-detect mode

Data transfers ..........................................DMA, interrupts,

programmed I/O

DMA modes ...........................................Single transfer, demand transfer

Input low current

–320 µA

Input high current

10 µA

Output low voltage (I

OL

= 24 mA)

0.4 V

Output high voltage (I

OH

= 13 mA)

4.35 V

Level

Min

Max