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CY2291
12
Document #: 38-00945-**
CyClocks is a trademark of Cypress Semiconductor Corporation.
Pentium is a registered trademark of Intel Corporation.
Custom Configuration Request Procedure
The CY229x are EPROM-programmable devices that may be configured in the factory or in the field by a Cypress Field Application
Engineer (FAE). The output frequencies requested will be matched as closely as the internal PLL divider and multiplier options
allow. All custom requests must be submitted to your local Cypress FAE or sales representative. The method to use to request
custom configurations is:
Use CyClocks™ software. This software automatically calculates the output frequencies that can be generated by the CY229x
devices and provides a print-out of final pinout which can be submitted (in electronic or print format) to your local FAE or sales
representative. The CyClocks software is available free of charge from the Cypress website (http://www.cypress.com) or from
your local sales representative.
Once the custom request has been processed you will receive a part number with a 3-digit extension (e.g., CY2292SC-128)
specific to the frequencies and pinout of your device. This will be the part number used for samples requests and production
orders.
Ordering Information
Ordering Code
Package
Name
Package Type
Operating
Range
Operating
Voltage
CY2291SC–XXX
S5
20-Pin SOIC
Commercial
5.0V
CY2291SL–XXX
S5
20-Pin SOIC
Commercial
3.3V
CY2291F
S5
20-Pin SOIC
Commercial
3.3V or 5.0V
CY2291SI–XXX
S5
20-Pin SOIC
Industrial
3.3V or 5.0V
CY2291FI
S5
20-Pin SOIC
Industrial
3.3V or 5.0V
Package Characteristics
Package
θ
JA (C/W)
θ
JC (C/W)
Transistor Count
20-pin SOIC
125
25
9271
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