CY8C20234(2007) データシートの表示（PDF） - Cypress Semiconductor
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CY8C20234 Datasheet PDF : 34 Pages
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CY8C20534, CY8C20434
CY8C20334, CY8C20234
Additional System Resources
System Resources provide additional capability useful to com-
plete systems. Additional resources include low voltage detec-
tion and power on reset. Brief statements describing the merits
of each system resource are presented below.
■ The I2C slave or SPI master-slave module provides 50/100/400
kHz communication over two wires. SPI communication over
three or four wires run at speeds of 46.9 kHz to 3 MHz (lower
for a slower system clock).
■ Low Voltage Detection (LVD) interrupts signal the application
of falling voltage levels, while the advanced POR (Power On
Reset) circuit eliminates the need for a system supervisor.
■ An internal 1.8V reference provides an absolute reference for
capacitive sensing.
■ The 5V maximum input, 3V fixed output, low dropout regulator
(LDO) provides regulation for IOs. A register controlled bypass
mode enables the user to disable the LDO.
Getting Started
To understand the PSoC silicon read this datasheet and use the
PSoC Designer Integrated Development 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 infor-
mation, refer to the PSoC Mixed Signal Array Technical Refer-
ence Manual on the web at http://www.cypress.com/psoc.
For up to date Ordering, Packaging, and Electrical Specification
information, refer to the latest PSoC device datasheets on the
web at http://www.cypress.com.
Development Kits
Development Kits are available from the following distributors:
Digi-Key, Avnet, Arrow, and Future. The Cypress Online Store
contains development kits, C compilers, and all accessories for
PSoC development. Go to the Cypress Online Store web site at
http://www.cypress.com, click the Online Store shopping cart
icon at the bottom of the web page and click PSoC (Program-
mable System-on-Chip) to view a current list of available items.
Technical Training Modules
Free PSoC technical training modules are available for new
users to PSoC. Training modules cover designing, debugging,
advanced analog, and CapSense. Go to
http://www.cypress.com/techtrain.
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, click on Design
Support located on the left side of the web page and select
CYPros Consultants.
Technical Support
PSoC application engineers take pride in fast and accurate
response. They are available with a four hour guaranteed
response at http://www.cypress.com/support/login.cfm.
Application Notes
A long list of application notes assist you in every aspect of your
design effort. To view the PSoC application notes, go to the
http://www.cypress.com and select Application Notes under the
Design Resources list located in the center of the web page.
Application notes are sorted by date by default.
Development Tools
PSoC Designer is a Microsoft® Windows based, integrated
development environment for the Programmable Sys-
tem-on-Chip (PSoC) devices. The PSoC Designer IDE and
application runs on Windows NT 4.0, Windows 2000, Windows
Millennium (Me), or Windows XP. For more information, see
Figure 2 on page 4.
PSoC Designer helps the customer to select an operating con-
figuration for the PSoC, write application code that uses the
PSoC, and debug the application. This system provides design
database management by project, an integrated debugger with
In-Circuit Emulator, in-system programming support, and the
CYASM macro assembler for the CPUs.
PSoC Designer also supports a high level C language compiler
developed specifically for the devices in the family.
Document Number: 001-05356 Rev. *D
Page 3 of 34
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