參數(shù)資料
型號(hào): 101-1226
廠商: Rabbit Semiconductor
文件頁數(shù): 164/168頁
文件大?。?/td> 0K
描述: RCM3900 DEV KIT UNIVERSAL
標(biāo)準(zhǔn)包裝: 1
系列: RabbitCore 3900
類型: MPU 模塊
適用于相關(guān)產(chǎn)品: RCM3900
所含物品: RabbitCore 模塊、開發(fā)板、交流適配器、纜線和 Dynamic C? 光盤
其它名稱: 316-1137
RabbitCore RCM3900 User’s Manual
95
B.4.3 CMOS Digital Outputs
If the stepper-motor option is not used, eight CMOS-level digital outputs are available at
J10, and can each handle up to 25 mA.
B.4.4 Sinking Digital Outputs
Four sinking digital outputs shared with LEDs DS3–DS6 are available at J12, and can each
handle up to 500 mA. Figure B-6 shows a wiring diagram for a typical sinking output.
Figure B-6. Prototyping Board Sinking Digital Outputs
B.4.5 Relay Outputs
Figure B-7 shows the contact connections for the relay on the Prototyping Board. A diode
across the coil provides a return path for inductive spikes, and snubbers across the relay
contacts protect the relay contacts from inductive spikes.
Figure B-7. Prototyping Board Relay Output Contact Connections
The relay is driven by pin PA4 of the RCM3900 module via U8, and is controlled by PE7
and PG5 as shown in the sample applications.
Vcc
330 W
1 kW
ADD DIODE
WHEN LOAD
IS INDUCTIVE
7
8
9
1
10
COM1
NO1
NC1
4
3
2
COM2
NO2
NC2
+3.3 V
47 W
100 nF
47 W
100 nF
J17
1
2
3
456
47 W
100 nF
47 W
100 nF
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