101-0570 Rabbit Semiconductor, 101-0570 Datasheet - Page 26

• Manufacturer Part Number: 101-0570
• Description: COMPUTER SNGLBD BL2120 FRCTNLOCK
• Manufacturer: Rabbit Semiconductor

Specifications of 101-0570

• Module/board Type: Single Board Computer Module
• Product: Modules
• Data Bus Width: 12 bit
• Processor Type: Rabbit 2000
• Sram: 128 KB
• Flash: 256 KB
• Timers: 8 bit
• Number Of I/os: 40
• Backup Battery: 3 V Lithium Coin Type
• Operating Voltage: 36 V
• Power Consumption: 1.5 W
• Board Size: 105 mm x 87 mm x 24 mm
• Description/function: Computer Module
• Ram: 512 KB
• For Use With/related Products: BL2120
• 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]
.
W
W
W
Figure 10. BL2100 Digital Input
Protected Range
Smartcat (BL2100)