CY7C68034-56LFXC

Overview

The CY7C68034-56LFXC is a firmware-based USB 2.0 NAND Flash controller from the EZ-USB NX2LP-Flex family, manufactured by Cypress Semiconductor Corp. It integrates a USB 2.0 transceiver, Smart SIE, and an enhanced 8051 core within a 56-pin QFN package. The device supports High Speed (480 Mbps) and Full Speed (12 Mbps) operation with a typical current draw of 43 mA. It features 15 KBytes of on-chip RAM, four programmable endpoints with buffering options, and hardware ECC generation. Designed for battery-powered applications, it offers a typical suspend current of 100 µA.

Feature Summary

• Integrates USB 2.0 transceiver and Smart SIE for direct connection to host systems without external components.
• Includes an enhanced 8051 microcontroller with internal RAM that loads firmware from NAND Flash at startup.
• Provides hardware-based ECC generation supporting 1-bit correction and 2-bit detection per 256 bytes.
• Features a General Programmable Interface (GPIF) for direct connection to parallel interfaces and DSPs.

Applications

• NAND Flash-based GPS devices
• NAND Flash-based DVB video capture devices
• Wireless pointer/presenter tools with NAND Flash storage
• NAND Flash-based MP3 players

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS3 compliance status as indicated in official documentation. Check for End-of-Life (EOL) notifications or discontinuance notices prior to final design adoption. Ensure supply chain stability given potential obsolescence risks associated with legacy semiconductor products.

Selection Notes

Select this component for designs requiring a flexible, firmware-programmable USB 2.0 interface for NAND Flash storage. It is suitable for battery-operated devices due to its low suspend current compared to the CY7C68033 variant. Consider the 56-pin QFN package constraints and thermal requirements during PCB layout. Evaluate firmware development resources needed to customize the default mass storage class implementation.

Part Context

This part belongs to the EZ-USB NX2LP-Flex series, which provides a cost-effective solution for USB mass storage applications. It serves as a firmware-based alternative to fixed-function controllers like the EZ-USB NX2LP. The CY7C68034 specifically targets battery-powered applications, distinguishing itself from the CY7C68033 which is intended for non-battery powered systems with higher suspend current.

FAQ

What is the difference between CY7C68034 and CY7C68033?

The CY7C68034 is optimized for battery-powered applications with a typical suspend current of 100 µA, whereas the CY7C68033 is designed for non-battery powered applications with a typical suspend current of 300 µA.

Does the CY7C68034 require an external EEPROM?

No, the device does not require an external EEPROM. Firmware runs from internal RAM that is downloaded from NAND Flash at startup.