CY8C41223 데이터 시트보기 (PDF) - Cypress Semiconductor

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CY8C41223

Linear Power PSoC™ Devices

Cypress Semiconductor 

PRELIMINARY

4.7 Additional System Resources

System Resources, some of which have been previously

listed, provide additional capability useful to complete systems

implemented in a single power block. Additional resources

include an I2C master and slave, low voltage detection, and

power on reset. Brief statements describing the merits of each

system resource are presented below.

• Digital clock dividers provide three customizable clock

frequencies for use in applications. The clocks can be

routed to both the digital and analog systems. Additional

clocks can be generated using digital PSoC blocks as clock

dividers.

• The I2C module provides 50-, 100-, and 400-kHz commu-

nication over two wires. Slave, master, and multi-master

modes are all supported.

• 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 1.3 voltage reference provides an absolute

reference for the analog system, including ADCs and DACs.

4.8 Development Tools

• Standard Cypress PSoC IDE tools are available for

debugging the CY8C41x23 family of parts. However, the

additional trace length and a minimal ground plane in the

Flexpod can create noise problems that make it difficult to

debug a Power PSoC design. A custom bonded On-Chip

Debug (OCD) device is available in an 32-pin QFN package.

The OCD device is recommended for debugging designs

that have high current and/or high analog accuracy require-

ments. The QFN package is compact and can be connected

to the ICE through a high density connector.

• In-System Serial Programming (ISSP) is available.

However, ISSP for Power PSoC differs from ISSP for

standard PSoC devices. With Power PSoC devices, the

power pin (HVdd) should not be connected directly to the

Vdd pin of the ISSP connector. Doing so can damage the

programming device.

CY8C41123 and CY8C41223

Document 001-00360 Rev. *A

Page 4 of 36

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