20-101-1068 Rabbit Semiconductor, 20-101-1068 Datasheet - Page 77

• Manufacturer Part Number: 20-101-1068
• Description: MODULE RABBITCORE RCM3315
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-1068

• Module/board Type: MPU Core Module
• Product: Microcontroller Modules
• Core Processor: Rabbit 3000
• Clock Speed: 44.2 MHz
• Interface Type: Ethernet, Serial
• Flash: 512 KB
• Timers: 10 x 8 bit, 1 x 10 bit
• Operating Supply Voltage: 3.15 V to 3.45 V
• Board Size: 47 mm x 69 mm x 22 mm
• Core: RCM3315
• Processor Series: RCM3315
• For Use With/related Products: RCM3315
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1114

A.2 Bus Loading
You must pay careful attention to bus loading when designing an interface to the
RCM3305/RCM3315. This section provides bus loading information for external devices.
Table A-2 lists the capacitance for the various RCM3305/RCM3315 I/O ports.
Table A-3 lists the external capacitive bus loading for the various RCM3305/RCM3315
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.
User’s Manual
Table A-3. External Capacitive Bus Loading -40°C to +85°C
Parallel Ports A to G
All I/O lines with clock
doubler enabled
Output Port
Table A-2. Capacitance of Rabbit 3000 I/O Ports
I/O Ports
Clock Speed
(MHz)
44.2
Capacitance
Input
(pF)
12
Capacitive Loading (pF)
Maximum External
Capacitance
100
Output
(pF)
14
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