参数资料
型号: 20-101-1196
厂商: Rabbit Semiconductor
文件页数: 144/168页
文件大小: 0K
描述: MODULE RABBITCORE RCM3900
标准包装: 1
系列: RabbitCore®
模块/板类型: MPU 核心模块
适用于相关产品: RCM3900
其它名称: 20-101-1196-ND
316-1155
RabbitCore RCM3900 User’s Manual
77
A.2 Bus Loading
You must pay careful attention to bus loading when designing an interface to the
RCM3900. This section provides bus loading information for external devices.
Table A-2 lists the capacitance for the various RCM3900 I/O ports.
Table A-3 lists the external capacitive bus loading for the various RCM3900 output ports.
Be sure to add the loads for the devices you are using in your custom system and verify
that they do not exceed the values in Table A-3.
Table A-2. Capacitance of Rabbit 3000 I/O Ports
I/O Ports
Input
Capacitance
(pF)
Output
Capacitance
(pF)
Parallel Ports A to G
12
14
Table A-3. External Capacitive Bus Loading -40°C to +85°C
Output Port
Clock Speed
(MHz)
Maximum External
Capacitive Loading (pF)
All I/O lines with clock
doubler enabled
22.1
100
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