101-0517 Rabbit Semiconductor, 101-0517 Datasheet - Page 44

• Manufacturer Part Number: 101-0517
• Description: MODULE RABBITCORE RCM3100
• Manufacturer: Rabbit Semiconductor

Specifications of 101-0517

• Rohs Status: RoHS non-compliant
• Module/board Type: MPU Core Module
• For Use With/related Products: RCM3100
• Other names: 316-1021

A.2 Bus Loading
You must pay careful attention to bus loading when designing an interface to the
RCM3100. This section provides bus loading information for external devices.
Table A-2 lists the capacitance for the various RCM3100 I/O ports.
Table A-3 lists the external capacitive bus loading for the various RCM3100 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.
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Table A-3. External Capacitive Bus Loading -40°C to +70°C
Parallel Ports A to G
All I/O lines with clock
doubler enabled
All I/O lines with clock
doubler disabled
Output Port
Table A-2. Capacitance of Rabbit 3000 I/O Ports
I/O Ports
Clock Speed
14.7456
(MHz)
29.4
Capacitance
Input
(pF)
12
Capacitive Loading (pF)
Maximum External
30–70
Capacitance
100
Output
(pF)
14
RabbitCore RCM3100