Specifications

CY8C21123/CY8C21223/CY8C21323
Document Number: 38-12022 Rev. *Y Page 5 of 46
PSoC Device Characteristics
Depending on your PSoC device characteristics, the digital and analog systems can have 16, 8, or 4 digital blocks, and 12, 6, or 4
analog blocks. Table 1 lists the resources available for specific PSoC device groups. The PSoC device covered by this datasheet is
highlighted.
Getting Started
The quickest way to understand PSoC silicon is to read this
datasheet and then use the PSoC Designer Integrated Devel-
opment Environment (IDE). This datasheet is an overview of the
PSoC integrated circuit and presents specific pin, register, and
electrical specifications.
For in depth information, along with detailed programming
details, see the Technical Reference Manual for this PSoC
device.
For up to date ordering, packaging, and electrical specification
information, see the latest PSoC device datasheets on the web
at http://www.cypress.com.
Application Notes
Application notes are an excellent introduction to the wide variety
of possible PSoC designs. They can be found at
http://www.cypress.com.
Development Kits
PSoC Development Kits are available online from Cypress at
http://www.cypress.com and through a growing number of
regional and global distributors, which include Arrow, Avnet,
Digi-Key, Farnell, Future Electronics, and Newark.
Training
Free PSoC technical training (on demand, webinars, and
workshops) is available online at http://www.cypress.com. The
training covers a wide variety of topics and skill levels to assist
you in your designs.
CYPros Consultants
Certified PSoC Consultants offer everything from technical
assistance to completed PSoC designs. To contact or become a
PSoC Consultant go to http://www.cypress.com and refer to
CYPros Consultants.
Solutions Library
Visit our growing library of solution focused designs at
http://www.cypress.com. Here you can find various application
designs that include firmware and hardware design files that
enable you to complete your designs quickly.
Technical Support
For assistance with technical issues, search KnowledgeBase
articles and forums at http://www.cypress.com. If you cannot find
an answer to your question, call technical support at
1-800-541-4736.
Table 1. PSoC Device Characteristics
PSoC Part
Number
Digital
I/O
Digital
Rows
Digital
Blocks
Analog
Inputs
Analog
Outputs
Analog
Columns
Analog
Blocks
SRAM
Size
Flash
Size
CY8C29x66 up to 64 4 16 up to 12 4 4 12 2 K 32 K
CY8C28xxx up to 44 up to 3 up to 12 up to 44 up to 4 up to 6 up to
12 + 4
[1]
1 K 16 K
CY8C27x43 up to 44 2 8 up to 12 4 4 12 256 16 K
CY8C24x94 up to 56 1 4 up to 48 2 2 6 1 K 16 K
CY8C24x23A up to 24 1 4 up to 12 2 2 6 256 4 K
CY8C23x33 up to 26 1 4 up to 12 2 2 4 256 8 K
CY8C22x45 up to 38 2 8 up to 38 0 4 6
[1]
1 K 16 K
CY8C21x45 up to 24 1 4 up to 24 0 4 6
[1]
512 8 K
CY8C21x34 up to 28 1 4 up to 28 0 2 4
[1]
512 8 K
CY8C21x23 up to 16 1 4 up to 8 0 2 4
[1]
256 4 K
CY8C20x34 up to 28 0 0 up to 28 0 0 3
[1,2]
512 8 K
CY8C20xx6 up to 36 0 0 up to 36 0 0 3
[1,2]
up to
2 K
up to
32 K
Notes
1. Limited analog functionality.
2. Two analog blocks and one CapSense
®
.