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April 20, 2005 © Cypress Semiconductor Corp. 2004-2005 — Document No. 38-12025 Rev. *G 35
6. Sales and Service Information
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6.1 Revision History
6.2 Copyrights and Code Protection
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Flash Code Protection Note the following details of the Flash code protection features on Cypress Semiconductor PSoC devices.
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the code protection features. Any of these methods, to our knowledge, would be dishonest and possibly illegal. Neither Cypress Semiconductor nor any other semicon-
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Document Title: CY8C21234, CY8C21334, CY8C21434, CY8C21534, and CY8C21634 PSoC Mixed-Signal Array Final Data Sheet
Document Number: 38-12025
Revision ECN # Issue Date
Origin of
Change
Description of Change
**
227340
5/19/2004 HMT New silicon and document (Revision **).
*A 235992 See ECN SFV
Updated Overview and Electrical Spec. chapters, along with revisions to the 24-pin pinout part.
Revised the register mapping tables. Added a SSOP 28-pin part.
*B 248572 See ECN SFV
Changed title to include all part #s. Changed 28-pin SSOP from CY8C21434 to CY8C21534.
Changed pin 9 on the 28-pin SSOP from SMP pin to Vss pin. Added SMP block to architecture
diagram. Update Electrical Specifications. Added another 32-pin MLF part: CY8C21634.
*C
277832 See ECN HMT Verify data sheet standards from SFV memo. Add Analog Input Mux to applicable pin outs.
Update PSoC Characteristics table. Update diagrams and specs. Final.
*D 285293 See ECN HMT Update 2.7V DC GPIO spec. Add Reflow Peak Temp. table.
*E 301739 See ECN HMT DC Chip-Level Specification changes. Update links to new CY.com Portal.
*F
329104 See ECN HMT Re-add pinout ISSP notation. Fix TMP register names. Clarify ADC feature. Update Electrical
Specifications. Update Reflow Peak Temp. table. Add 32 MLF E-PAD dimensions. Add ThetaJC to
Thermal Impedance table. Fix 20-pin package order number. Add CY logo. Update CY copyright.
*G
352736 See ECN HMT Add new color and logo. Add URL to preferred dimensions for mounting MLF packages. Update
Transmitter and Receiver AC Digital Block Electrical Specifications.
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