CY7C68034-56LTXC

Overview

The CY7C68034-56LTXC is a firmware-based, programmable USB 2.0 NAND Flash controller from the EZ-USB NX2LP-Flex family. It integrates a USB 2.0 transceiver, Smart SIE, and an enhanced 8051 microcontroller in a 56-pin QFN package. The device supports High-Speed (480 Mbps) and Full-Speed (12 Mbps) operation with typical current draw of 43 mA. Key features include 15 KBytes of on-chip RAM, four programmable endpoints, and SmartMedia hardware ECC generation. Unlike the CY7C68033, the CY7C68034 offers ultra-low power suspend current of 100 µA, making it ideal for battery-powered applications.

Feature Summary

• Integrates USB 2.0 transceiver and Smart SIE for cost-effective, small-footprint solutions
• Features an enhanced 8051 core with 15 KBytes internal RAM for flexible firmware execution
• Includes SmartMedia standard hardware ECC generation with 1-bit correction and 2-bit detection
• Provides General Programmable Interface (GPIF) for direct connection to parallel interfaces

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
• Biometric security devices with NAND Flash storage

Procurement Notes

Verify component authenticity through authorized distributors or Infineon/Cypress certified channels. Confirm RoHS compliance status and check for End-of-Life (EOL) notifications, as this part may be discontinued. Ensure design-in compatibility with existing firmware and hardware layouts before procurement.

Selection Notes

Select the CY7C68034 over the CY7C68033 specifically for battery-powered designs due to its lower 100 µA suspend current. Choose this controller when firmware flexibility is required for custom NAND management or additional peripheral interfaces via GPIF. Ensure the application requires USB 2.0 High-Speed support and fits within the 56-pin QFN form factor.

Part Context

This component belongs to the EZ-USB NX2LP-Flex family, which provides a programmable alternative to fixed-function USB controllers. It shares architectural similarities with the FX2LP but adds dedicated NAND boot logic and SmartMedia ECC support. The CY7C68034 variant is optimized for low-power portable electronics compared to the standard CY7C68033.

Replacement Considerations

CY7C68033-56LTXC: Compatible pinout and functionality, but higher suspend current (300 µA). Suitable if power saving is not critical.