101-0602 Rabbit Semiconductor, 101-0602 Datasheet - Page 27
101-0602
Manufacturer Part Number
101-0602
Description
COMPUTER SNGL BRD BL2500 44.2MHZ
Manufacturer
Rabbit Semiconductor
Datasheet
1.101-0576.pdf
(106 pages)
Specifications of 101-0602
Module/board Type
Single Board Computer Module
For Use With/related Products
BL2500
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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3.3 Digital I/O
3.3.1 Digital Inputs
The Coyote has 16 digital inputs, IN00–IN15. IN00–IN13 and IN15 are each protected
over a range of –36 V to +36 V, and IN14 is protected over a range of –36 V to +5 V. The
inputs are factory-configured to be pulled up to +3.3 V; IN00–IN07 can also be pulled up
to +K or they can be pulled down to 0 V by changing a surface-mounted 0 resistor.
Figure 10 shows a sample digital input circuit. IN00-IN07 and IN15 are protected against
noise spikes by a low-pass filter composed of a 22 k series resistor and a 10 nF capacitor.
User’s Manual
Coyote series boards can be made to order in
volume with the digital inputs pulled up to +K or
pulled down to 0 V. Contact your authorized Rab-
bit distributor or your sales representative at for
more information.
The actual switching threshold between a zero
and a one is between 0.9 V and 2.3 V for all 16
inputs.
IN00–IN13 and IN15 are each fully protected
over a range of -36 V to +36 V, and can handle
short spikes of ±40 V. IN14 is protected over a
range of -36 V to +5 V.
Figure 10. Coyote Digital Inputs [Pulled Up—Factory Default]
W
W
W
Figure 11. Coyote Digital Input
Protected Range
21
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