Chapter 4
Connecting Signals
4-8
ni.com
GPCTR0_OUT
DGND
Output
Counter 0 Output—This output is from the general-purpose
counter 0 output.
FREQ_OUT
DGND
Output
Frequency Output—This output is from the frequency
generator output.
Table 4-3.
I/O Signal Summary for the AT-MIO-16E-1, AT-MIO-16E-2, and AT-MIO-64E-3
Signal Name
Drive
Impedance
Input/
Output
Protection
(Volts)
On/Off
Source
(mA at V)
Sink
(mA at V)
Rise
Time
(ns)
Bias
ACH<0..63>
AI
100 G
Ω
in parallel
with
100 pF
25/15
—
—
—
±200 pA
AISENSE, AISENSE2
AI
100 G
Ω
in parallel
with
100 pF
25/15
—
—
—
±200 pA
AIGND
AO
—
—
—
—
—
—
DAC0OUT
AO
0.1
Ω
Short-circuit
to ground
5 at 10
5 at –10
20
V/µs
—
DAC1OUT
AO
0.1
Ω
Short-circuit
to ground
5 at 10
5 at –10
20
V/µs
—
EXTREF
AI
10 k
Ω
25/15
—
—
—
—
AOGND
AO
—
—
—
—
—
—
DGND
DO
—
—
—
—
—
—
VCC
DO
0.1
Ω
Short-circuit
to ground
1 A
—
—
—
DIO<0..7>
DIO
—
Vcc +0.5
13 at
(Vcc –0.4)
24 at 0.4
1.1
50 k
Ω
pu
1
SCANCLK
DO
—
—
3.5 at
(Vcc –0.4)
5 at 0.4
1.5
50 k
Ω
pu
EXTSTROBE*
DO
—
—
3.5 at
(Vcc –0.4)
5 at 0.4
1.5
50 k
Ω
pu
PFI0/TRIG1
ADIO
10 k
Ω
Vcc +0.5/±35
3.5 at
(Vcc –0.4)
5 at 0.4
1.5
50 k
Ω
pu
2
Table 4-2.
I/O Signal Summary for the AT E Series (Continued)
Signal Name
Reference
Direction
Description