参数资料
型号: 101-1293
厂商: Rabbit Semiconductor
文件页数: 83/118页
文件大小: 0K
描述: RCM4510W DEV KIT
标准包装: 1
类型: 收发器,微处理器
频率: 2.4GHz
适用于相关产品: RCM4510W
已供物品: 板,模块,天线,线缆,CD,文档,电源
其它名称: 316-1189
A.3 I/O Buffer Sourcing and Sinking Limit
Unless otherwise specified, the Rabbit I/O buffers are capable of sourcing and sinking
8 mA of current per pin at full AC switching speed. Full AC switching assumes a
29.4 MHz CPU clock with the clock doubler enabled and capacitive loading on address
and data lines of less than 70 pF per pin. The absolute maximum operating voltage on all
I/O is 3.6 V.
A.4 Bus Loading
You must pay careful attention to bus loading when designing an interface to the
RCM4510W. This section provides bus loading information for external devices.
Table A-5 lists the capacitance for the various RCM4510W I/O ports.
Table A-5. Capacitance of Rabbit 4000 I/O Ports
Input
Output
I/O Ports
Parallel Ports A to E
Capacitance
(pF)
12
Capacitance
(pF)
14
Table A-6 lists the external capacitive bus loading for the various RCM4510W 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-6.
Table A-6. External Capacitive Bus Loading -40°C to +85°C
User ’s Manual
Output Port
All I/O lines with clock
doubler enabled
Clock Speed
(MHz)
29.49
Maximum External
Capacitive Loading (pF)
100
77
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