101-1229 Rabbit Semiconductor, 101-1229 Datasheet - Page 97
![no-image](/images/no-image-200.jpg)
101-1229
Manufacturer Part Number
101-1229
Description
KIT DEV RCM4400W INTL JAPAN ONLY
Manufacturer
Rabbit Semiconductor
Type
802.11br
Datasheet
1.20-101-1202.pdf
(126 pages)
Specifications of 101-1229
Frequency
2.4GHz
For Use With/related Products
RCM4400W
Lead Free Status / RoHS Status
Vendor undefined / Vendor undefined
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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 3.3 V ±5%.
A.4 Bus Loading
You must pay careful attention to bus loading when designing an interface to the
RCM4400W. This section provides bus loading information for external devices.
Table A-4 lists the capacitance for the various RCM4400W I/O ports.
Table A-5 lists the external capacitive bus loading for the various RCM4400W 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-5.
OEM User’s Manual
Table A-5. External Capacitive Bus Loading -20°C to +85°C
Parallel Ports A to E
All I/O lines with clock
doubler enabled
Output Port
Table A-4. Capacitance of Rabbit 4000 I/O Ports
I/O Ports
Clock Speed
(MHz)
58.98
Capacitance
Input
(pF)
12
Capacitive Loading (pF)
Maximum External
Capacitance
100
Output
(pF)
14
91
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