20-101-1255 Rabbit Semiconductor, 20-101-1255 Datasheet - Page 24

• Manufacturer Part Number: 20-101-1255
• Description: COMPUTER SINGLE-BOARD BL4S100
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-1255

• Module/board Type: Single Board Computer Module
• Product: Modules
• Processor Type: BL4S100
• Sram: 512 KB
• Timers: 8 bit, 10 bit
• Number Of I/os: 20
• Backup Battery: 3 V Lithium Coin Type
• Operating Voltage: 9 V to 36 V
• Power Consumption: 2 W
• Board Size: 96 mm x 146 mm x 16 mm
• Description/function: Computer Module
• For Use With/related Products: BL4S100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1168

3.2.2 Digital Outputs
The BL4S100 has eight digital outputs, OUT0–OUT7, which can each sink up to 200 mA.
Figure 8 shows a wiring diagram for using the sinking digital outputs.
OUT0–OUT3 are powered by +K1, and OUT4–OUT7 are powered by +K2. +K1 and
+K2 can each be up to 36 V. They don't have to be the same. All the sinking current, which
could be up to 1.6 A, is returned through the GND pin. Be sure to use a suitably sized
ground wire and keep the distance to the power supply as short as possible.
All the digital outputs sink actively. They can be used as low-side drivers, or as an H-bridge
driver. When the BL4S100 is first powered up or reset, all the outputs are disabled, that is,
at a high-impedance state.
Individual digital output channels may be used for PWM/PPM outputs.The use of these
channels for PWM/PPM is described in Section 3.2.2.1.
BL4S100 User’s Manual
For the H bridge, which is shown in Figure 9,
Ka and Kb
easily accomplished by using outputs from the
same bank on one connector.
should be the same
Figure 8. BL4S100 Digital Outputs
W
. This is most
Figure 9. H Bridge
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