National Instruments AT E Series User Manual
Page 58
Chapter 4
Connecting Signals
© National Instruments Corporation
4-11
PFI4/GPCTR1_GATE
DIO
—
Vcc +0.5
3.5 at
(Vcc –0.4)
5 at 0.4
1.5
50 k
Ω pu
GPCTR1_OUT
DO
—
—
3.5 at
(Vcc –0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI5/UPDATE*
DIO
—
Vcc +0.5
3.5 at
(Vcc –0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI6/WFTRIG
DIO
—
Vcc +0.5
3.5 at
(Vcc –0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI7/STARTSCAN
DIO
—
Vcc +0.5
3.5 at
(Vcc –0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI8/GPCTR0_SOURCE
DIO
—
Vcc +0.5
3.5 at
(Vcc -0.4)
5 at 0.4
1.5
50 k
Ω pu
PFI9/GPCTR0_GATE
DIO
—
Vcc +0.5
3.5 at
(Vcc–0.4)
5 at 0.4
1.5
50 k
Ω pu
GPCTR0_OUT
DO
—
—
3.5 at
(Vcc –0.4)
5 at 0.4
1.5
50 k
Ω pu
FREQ_OUT
DO
—
—
3.5 at
(Vcc –0.4)
5 at 0.4
1.5
50 k
Ω pu
1
DIO<6..7> are also pulled down with a 50 k
Ω resistor.
AI = Analog Input
DIO = Digital Input/Output
pu = pull up
AO = Analog Output
DO = Digital Output
The tolerance on the 50 k
Ω pull-up and pull-down resistors is very large. Actual value may range between 17 kΩ and 100 kΩ.
Table 4-4. I/O Signal Summary for the AT-MIO-16E-10 and AT-MIO-16DE-10 (Continued)
Signal Name
Drive
Impedance
Input/
Output
Protection
(Volts)
On/Off
Source
(mA at V)
Sink
(mA at V)
Rise
Time
(ns)
Bias