101-0572 Rabbit Semiconductor, 101-0572 Datasheet - Page 26

• Manufacturer Part Number: 101-0572
• Description: COMPUTER SNGLBD BL2110 512K FLSH
• Manufacturer: Rabbit Semiconductor

Specifications of 101-0572

• Module/board Type: Single Board Computer Module
• For Use With/related Products: BL2110
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

3.2 Digital I/O
3.2.1 Digital Inputs
The BL2100 has 24 digital inputs, IN00–IN23, each of which is protected over a range of
–36 V to +36 V. The inputs are factory-configured to be pulled up to +5 V, but they can
also be pulled up to +K2 or down to 0 V in banks of eight by changing a surface-mounted
0  resistor as shown in Figure 9.
The actual switching threshold is approximately 2.40 V. Anything below this value is a
logic 0, and anything above is a logic 1
20
The digital inputs are each fully protected over a
range of -36 V to +36 V, and can handle short
spikes of ±40 V.
NOTE: If the inputs are pulled up to +K2, the voltage range over which the digital inputs
are protected changes to K2 – 36 V to +36 V.
Figure 9. BL2100 Digital Inputs [Pulled Up—Factory Default]
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W
W
W
Figure 10. BL2100 Digital Input
Protected Range
Smartcat (BL2100)