Chapter 4 Signal Connections
National Instruments Corporation 4-9 AT-MIO/AI E Series User Manual
DIO<0..7>
DIO — V
cc
+0.5 13 at (V
cc
-0.4) 24 at
0.4
1.1 50 kΩ pu
1
SCANCLK
DO — — 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
EXTSTROBE* DO — — 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
PFI0/TRIG1 ADIO 10 kΩ
V
cc
+0.5/±35
3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
2
PFI1/TRIG2
DIO — V
cc
+0.5 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
PFI2/CONVERT* DIO — V
cc
+0.5
3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
PFI3/GPCTR1_SOURCE DIO — V
cc
+0.5 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
PFI4/GPCTR1_GATE DIO — V
cc
+0.5 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
GPCTR1_OUT DO — — 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
PFI5/UPDATE* DIO — V
cc
+0.5 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
PFI6/WFTRIG DIO — V
cc
+0.5 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
PFI7/STARTSCAN DIO — V
cc
+0.5 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
PFI8/GPCTR0_SOURCE DIO — V
cc
+0.5 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
PFI9/GPCTR0_GATE DIO — V
cc
+0.5 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
GPCTR0_OUT DO — — 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
FREQ_OUT DO — — 3.5 at (V
cc
-0.4) 5 at 0.4 1.5 50 kΩ pu
1
DIO <6..7> are also pulled down with a 50 kΩ resistor.
AI = Analog Input DIO = Digital Input/Output pu = pullup
AO = Analog Output DO = Digital Output ADIO = Analog/Digital Input/Output
2
Also pulled down with a 10 kΩ resistor.
Note: The tolerance on the 50 kΩ pullup and pulldown resistors is very large. Actual value may range between
17 kΩ and 100 kΩ.
Table 4-1. I/O Signal Summary, AT-MIO-16E-1, AT-MIO-16E-2, and AT-MIO-64E-3 (Continued)
Signal Name
Drive Impedance
Input/
Output
Protection
(Volts)
On/Off
Source
(mA at V)
Sink
(mA at
V)
Rise
Time
(ns)
Bias
