©
National Instruments Corporation
21
NI 5761R User Guide and Specifications
Input levels
Absolute maximum input.......................................–0.5 V to 7 V
PFI<0..7>
General Characteristics
Number of channels ...............................................8 bidirectional
Connector type .......................................................Micro–D
Interface standard...................................................2.5 V LVCMOS
Interface logic
Z
in
...................................................................17.5 k
Ω
Z
out
.................................................................50
Ω
I
out
...................................................................2 mA
Maximum toggle frequency...................................500 kHz
Absolute maximum input.......................................–0.5 V to 7 V
EEPROM Map
Caution
Only
write to
User Space
. Writing to any other offset may cause the NI 5761 to stop
functioning.
Voltage Level
Minimum
Maximum
V
IL
0 V
0.7 V
V
IH
1.7 V
5.5 V
Voltage Level
Minimum
Maximum
V
IL
0 V
0.7 V
V
IH
1.7 V
5.5 V
V
OL
0 V
0.4 V
V
OH
1.9 V
2.5 V
Byte Address
Size (Bytes)
Field Name
0x0
2
Vendor ID
0x2
2
Product ID
0x4
4
Serial Number
0x8
116
Reserved
0x7C
132
User Space
Содержание NI-5761
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