20-101-0525 Rabbit Semiconductor, 20-101-0525 Datasheet - Page 28
20-101-0525
Manufacturer Part Number
20-101-0525
Description
COMPUTER SINGLE-BOARD LP3500 FOX
Manufacturer
Rabbit Semiconductor
Specifications of 20-101-0525
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
LP3500
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
316-1115
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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.
22
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)
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