User manual

CY8C29466, CY8C29566
CY8C29666, CY8C29866
Document Number: 38-12013 Rev. *M Page 5 of 47
■ Low Voltage Detection (LVD) interrupts can signal the appli-
cation of falling voltage levels, while the advanced POR (Power
On Reset) circuit eliminates the need for a system supervisor.
■ An internal 1.3V reference provides an absolute reference for
the analog system, including ADCs and DACs.
■ An integrated switch mode pump (SMP) generates normal
operating voltages from a single 1.2V battery cell, providing a
low cost boost converter.
4.5 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. The following table lists the resources available
for specific PSoC device groups.The PSoC device covered by
this data sheet is highlighted below.
5. Getting Started
The quickest way to understand PSoC silicon is to read this data
sheet and then use the PSoC Designer Integrated Development
Environment (IDE). This data sheet 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 PSoC Technical Reference Manual for
CY8C29x66 PSoC devices.
For up to date ordering, packaging, and electrical specification
information, see the latest PSoC device data sheets on the web
at www.cypress.com/psoc.
5.1 Application Notes
Application notes are an excellent introduction to the wide variety
of possible PSoC designs. They are located here:
www.cypress.com/psoc. Select Application Notes under the
Documentation tab.
5.2 Development Kits
PSoC Development Kits are available online from Cypress at
www.cypress.com/shop and through a growing number of
regional and global distributors, which include Arrow, Avnet,
Digi-Key, Farnell, Future Electronics, and Newark.
5.3 Training
Free PSoC technical training (on demand, webinars, and
workshops) is available online at www.cypress.com/training. The
training covers a wide variety of topics and skill levels to assist
you in your designs.
5.4 CYPros Consultants
Certified PSoC Consultants offer everything from technical
assistance to completed PSoC designs. To contact or become a
PSoC Consultant go to www.cypress.com/cypros.
5.5 Solutions Library
Visit our growing library of solution focused designs at
www.cypress.com/solutions. Here you can find various
application designs that include firmware and hardware design
files that enable you to complete your designs quickly.
5.6 Technical Support
For assistance with technical issues, search KnowledgeBase
articles and forums at www.cypress.com/support. If you cannot
find an answer to your question, call technical support at
1-800-541-4736.
Table 4-1. 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 12 4 4 12 2K 32K
CY8C27x43
up to
44
2 8 12 4 4 12
256
Bytes
16K
CY8C24x94 49 1 4 48 2 2 6 1K 16K
CY8C24x23
up to
24
1 4 12 2 2 6
256
Bytes
4K
CY8C24x23A
up to
24
1412226
256
Bytes
4K
CY8C21x34
up to
28
142802
4
[1]
512
Bytes
8K
CY8C21x23
16 1 4 8 0 2
4
[1]
256
Bytes
4K
CY8C20x34
up to
28
0 0 28 0 0
3
[2]
512
Bytes
8K
Notes
1. Limited analog functionality.
2. Two analog blocks and one CapSense.
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