20-101-0526 Rabbit Semiconductor, 20-101-0526 Datasheet - Page 28

• Manufacturer Part Number: 20-101-0526
• Description: COMPUTER SNGLBD LP3510 FOX7.4MHZ
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-0526

• Module/board Type: Single Board Computer Module
• Product: Modules
• Processor Type: Rabbit 3000
• Sram: 512 KB
• Flash: 512 KB
• Timers: 8 bit, 10 bit
• Number Of I/os: 26
• Backup Battery: 3 V Lithium Coin Type
• Operating Voltage: 3 V to 30 V
• Board Size: 93 mm x 66 mm x 11 mm
• Description/function: Computer Module
• For Use With/related Products: LP3510
• Lead Free Status / RoHS Status: Vendor undefined / Vendor undefined

3.3 Digital I/O
3.3.1 Digital Inputs
The LP3500 has 16 digital inputs, IN00–IN15. The inputs are factory-configured to be
pulled up to +K in banks of eight, but they can also be pulled up to Vcc or down to 0 V in
banks of eight by changing a surface-mounted 0 Ω resistor as shown in Figure 9.
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The digital inputs are each fully protected
over a range of 0 V to +36 V, and can handle
short spikes of ±40 V. The actual switching
threshold is approximately 1.40 V. Any-
thing below this value is a logic 0, and any-
thing above is a logic 1
Pulling the digital inputs to Vcc will
increase the current consumption by about
300 µA for each digital input.
Figure 9. LP3500 Digital Inputs [Pulled Up—Factory Default]
.
Figure 10. LP3500 Digital Input Protected
W
W
W
Range
Fox (LP3500)