CP2201EK Silicon Laboratories Inc, CP2201EK Datasheet - Page 19
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CP2201EK
Manufacturer Part Number
CP2201EK
Description
KIT EVAL FOR CP2201 ETH CTRLR
Manufacturer
Silicon Laboratories Inc
Type
Controllers & Processorsr
Specifications of CP2201EK
Main Purpose
Interface, Ethernet Sensor
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
CP2200, CP2201
Primary Attributes
Temperature and Light Sensor
Secondary Attributes
Graphic User Interface
Interface Type
Ethernet
Product
Modules
Silicon Manufacturer
Silicon Labs
Silicon Core Number
CP2201
Silicon Family Name
CP220x
Kit Contents
CP2201 Evaluation Board, Power Adapter, CAT5e Ethernet Cable, CD-ROM, Quick-Start Guide
For Use With/related Products
CP2201
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Other names
336-1316
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CP2201EK
Manufacturer:
SiliconL
Quantity:
8
6.4. Clocking Options
The CP2200/1 can be clocked from an external parallel-mode crystal oscillator or CMOS clock. Figure 10 and
Figure 11 show typical connections for both clock source types. If a crystal oscillator is chosen to clock the device,
the crystal is started once the device is released from reset and remains on until the device reenters the reset state
or loses power.
Important note on external crystals: Crystal oscillator circuits are quite sensitive to PCB layout. The crystal
should be placed as close as possible to the XTAL pins on the device. The traces should be as short as possible
and shielded with a ground plane from any other traces that could introduce noise or interference.
Table 7 lists the clocking requirements of the CP2200/1 when using a crystal oscillator or CMOS clock. Table 8
shows the electrical characteristics of the XTAL1 pin. These characteristics are useful when selecting an external
CMOS clock.
20 MHz
CMOS
Clock
Figure 11. External CMOS Clock Example
Figure 10. Crystal Oscillator Example
20 MHz
Rev. 1.0
10 MΩ
No Connect
XTAL1
XTAL2
XTAL1
XTAL2
CP2200/1
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