
Chapter4 ConnectingSignals
©NationalInstruments Corporation 4-13 ATE Series User Manual
PFI6/WFTRIG DIO —Vcc+0.5 3.5 at
(Vcc–0.4)
5at0.4 1.5 50kΩpu
PFI7/STARTSCAN DIO —Vcc+0.5 3.5 at
(Vcc–0.4)
5at0.4 1.5 50kΩpu
PFI8/GPCTR0_SOURCE DIO —Vcc+0.5 3.5 at
(Vcc–0.4)
5at0.4 1.5 50kΩpu
PFI9/GPCTR0_GATE DIO —Vcc+0.5 3.5 at
(Vcc–0.4)
5at0.4 1.5 50kΩpu
GPCTR0_OUT DO — — 3.5at
(Vcc–0.4)
5at0.4 1.5 50kΩpu
FREQ_OUT DO — — 3.5at
(Vcc–0.4)
5at0.4 1.5 50kΩpu
AI= Analog Input DIO= Digital Input/Output pu= pull up
AO= Analog Output DO= Digital Output
Thetolerance on the 50 kΩpull-up and pull-down resistors is very large. Actual value may range between 17 kΩand 100 kΩ.
Table4-6. I/O Signal Summary for the AT-MIO-16XE-50SignalName Drive
Impedance
Input/
Output
Protection
(Volts)
On/Off
Source
(mAat V)
Sink
(mAat V)
Rise
Time
(ns) Bias
ACH<0..15> AI 20GΩin
parallelwith
100pF
25/15 — — — ±3 nA
AISENSE AI 20GΩin
parallelwith
100pF
25/15 — — — ±3 nA
AIGND AO — — — — — —
DAC0OUT AO 0.1 ΩShort-circuit
toground
5at10 5at–10 2
V/µs
—
DAC1OUT AO 0.1 ΩShort-circuit
toground
5at10 5at–10 2
V/µs
—
AOGND AO — — — — — —
DGND DO — — — — — —
Table4-5. I/O Signal Summary for the AT-MIO-16XE-10 and AT-AI-16XE-10(Continued)SignalName Drive
Impedance
Input/
Output
Protection
(Volts)
On/Off
Source
(mAat V)
Sink
(mAat V)
Rise
Time
(ns) Bias