101-0523 Rabbit Semiconductor, 101-0523 Datasheet - Page 62

• Manufacturer Part Number: 101-0523
• Description: KIT DEV RABBIT3000/RCM3000
• Manufacturer: Rabbit Semiconductor
• Series: RabbitCore 3000r
• Type: MPU Moduler

Specifications of 101-0523

• Rohs Status: RoHS non-compliant
• Contents: RabbitCore Module, Dev. Board, AC Adapter, Cable and Dynamic C® CD-Rom
• Processor To Be Evaluated: RCM3000
• Interface Type: RS-232, Ethernet
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 3.15 V to 3.45 V
• For Use With/related Products: RCM3000
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 316-1017

A.2 Bus Loading
You must pay careful attention to bus loading when designing an interface to the
RCM3000. This section provides bus loading information for external devices.
Table A-2 lists the capacitance for the various RCM3000 I/O ports.
Table A-3 lists the external capacitive bus loading for the various RCM3000 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 RCM3000