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Infineon Technologies CY7C68034-56LTXC
- Part No.:
- CY7C68034-56LTXC
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
CY7C68034-56LTXC.pdf
- Description:
- IC USB CTLR NAND NX2LP 56QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,412
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Product details
Overview
CY7C68034-56LTXC from Cypress Semiconductor is a firmware-programmable USB 2.0 NAND Flash controller IC integrating an enhanced 8051 core, USB 2.0 transceiver, Smart Serial Interface Engine (SIE), and General Programmable Interface (GPIF). It supports high-speed (480 Mbps) and full-speed (12 Mbps) USB operation, delivers 100 µA typical suspend current for battery-powered designs, and features 15 KB on-chip RAM with 8 KB default NAND firmware. Used in NAND-based portable storage devices such as GPS units and DVB video capture tools.
For engineers reviewing the CY7C68034-56LTXC datasheet, CY7C68034-56LTXC pinout, CY7C68034-56LTXC application, or CY7C68034-56LTXC equivalent, key selection criteria include USB 2.0 mass storage class compliance, 8/16-bit programmable GPIF timing, integrated ECC for 256-byte NAND pages, and low-power suspend capability - all validated in the official Cypress Rev. *Q datasheet (001-04247).
Technical Context
The CY7C68034 implements a USB 2.0 Mass Storage Class Bulk-Only Transport (BOT) controller via firmware-executed logic on its 48/24/12 MHz configurable 8051 core. Its Smart SIE handles protocol-level USB 1.1/2.0 enumeration, descriptor management, and endpoint buffering, offloading host communication tasks from application firmware.
GPIF enables direct glueless interfacing to 8-bit NAND Flash with support for 30/50/100 ns timing, dual-die chip select up to four devices, and hardware ECC generation (1-bit correction / 2-bit detection per 256 bytes). I²C master interface operates at 100/400 kHz and activates post-NAND initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed Support | High-speed (480 Mbps) and full-speed (12 Mbps); no low-speed mode - enables USB 2.0 mass storage class compliance. |
| Core Architecture | Enhanced 8051 microcontroller with 4 clocks/instruction cycle, three timers, expanded interrupt system - provides deterministic real-time NAND command sequencing. |
| On-Chip RAM | 15 KB code/data RAM (8 KB allocated to default NAND firmware, 7 KB free for custom code) - eliminates external EEPROM and reduces BOM cost. |
| ECC Capability | Hardware SmartMedia-standard ECC: 1-bit correction + 2-bit detection per 256 bytes - ensures data integrity across NAND wear leveling and bad block management. |
| Suspend Current | 100 µA typical - meets battery-powered portable device requirements (e.g., handheld GPS, MP3 players). |
| GPIF Bus Width | Programmable 8- or 16-bit parallel interface with configurable RDY/CTL signals - supports direct connection to NAND, EPP, ASICs, and DSPs without glue logic. |
| I²C Interface | Master-only, 100/400 kHz, open-drain SCL/SDA with hysteresis - enables communication with external PMICs or sensors after NAND boot. |
Pinout & Package
Package: 56-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D+ / D− | USB 2.0 differential data pair | Integrated transceiver pins; require 27 Ω series resistors and 15 kΩ pull-downs per USB spec for high-speed termination. |
| IOA[7:0] | General-purpose I/O port A | Configurable as NAND data bus (D[7:0]), GPIF data lines, or GPIO - supports 8-bit NAND page transfers. |
| IOB[7:0] | General-purpose I/O port B | Used for NAND address (A[15:8]) or GPIF control; multiplexed with FIFO data bus in slave mode. |
| IOC[7:0] | General-purpose I/O port C | Supports NAND control signals (CLE, ALE, CE#, RE#, WE#), GPIF CTL outputs, or GPIO - enables up to eight CE# outputs. |
| IOD[7:0] | General-purpose I/O port D | Provides additional NAND timing control (RDY, CTL), GPIF RDY inputs, or GPIO - critical for 30/50/100 ns NAND timing compliance. |
| XTALIN / XTALOUT | 24 MHz crystal oscillator interface | Drives on-chip PLL; requires 12 pF load capacitors and ±100 ppm fundamental-mode crystal for USB timing accuracy. |
| VCC / GND | 3.3 V power supply | 3.3 V core I/O with 5 V tolerant inputs - simplifies level-shifting when interfacing with legacy NAND devices. |
Key Features
| Feature | Design Value |
|---|---|
| Firmware-downloadable architecture | RAM-based 8051 execution enables field-upgradable NAND controller logic without mask ROM re-spin. |
| Four programmable USB endpoints | Configurable bulk/interrupt/isochronous endpoints with double/triple/quad buffering - optimizes USB throughput up to 53 MB/s burst rate. |
| Integrated Smart SIE | Handles USB enumeration, descriptor parsing, and endpoint state management - reduces firmware overhead by >60% vs. software-only SIE implementations. |
| 12 programmable GPIO pins | Includes two dedicated CE# pins, six CE#/GPIO configurable pins, and four GPIO-only pins - supports up to eight single-die or four dual-die NAND chips. |
| Slave FIFO interface | 8-/16-bit master/slave FIFO with asynchronous strobe support - enables seamless integration with ASICs, FPGAs, or DSPs without external logic. |
Applications
| GPS Navigation Devices | DVB Video Capture Units |
|---|---|
|
Use Scenario: Portable automotive or handheld GPS units requiring local map storage and firmware updates via USB. IC Role / Device Role / Timing Role: USB 2.0 mass storage controller managing NAND Flash read/write, wear leveling, and ECC correction during map data access. Use Value: 100 µA suspend current extends battery life; GPIF timing flexibility supports diverse 30–100 ns NAND Flash parts used in cost-sensitive GPS modules. |
Use Scenario: USB-connected DVB-T/TV tuner sticks capturing broadcast video to onboard NAND for playback or time-shift recording. IC Role / Device Role / Timing Role: High-bandwidth USB 2.0 BOT controller coordinating NAND page writes under real-time video stream pressure. Use Value: 480 Mbps USB link + hardware ECC ensures error-resilient, sustained 53 MB/s burst writes - critical for uninterrupted MPEG-2/4 video buffering. |
| Wireless Presenters with Storage | NAND-based Biometric Security Drives |
|
Use Scenario: Battery-powered presenter remotes storing presentation files and firmware on embedded NAND Flash. IC Role / Device Role / Timing Role: Low-power USB mass storage interface enabling drag-and-drop file transfer while maintaining <100 µA standby draw. Use Value: Integrated 8051 and RAM eliminate external microcontroller; suspend current spec directly enables multi-week battery operation in compact form factors. |
Use Scenario: Encrypted USB drives using fingerprint authentication where NAND stores biometric templates and encrypted payloads. IC Role / Device Role / Timing Role: Secure NAND controller enforcing ECC-corrected reads/writes of sensitive template data under USB host command. Use Value: Hardware ECC per 256-byte page prevents corruption of biometric data; programmable GPIF allows secure co-processor handshake for crypto acceleration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB NAND Flash controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C68033-56LTXC | Higher 300 µA typical suspend current; identical pinout, firmware, and feature set. | Targeted for non-battery-powered applications (e.g., desktop peripherals, docking stations). | Select CY7C68033 if system power budget permits higher idle draw and no battery constraints exist. |
| SL11H-2000-BZK | Fixed-function USB 2.0 host/peripheral controller with no integrated NAND interface or ECC engine; requires external logic for NAND management. | Used in host-side USB expansion, not NAND mass storage endpoints. | Not a drop-in replacement; only consider if redesigning around external NAND controller IP and accepting higher firmware complexity. |
Compared with CY7C68033-56LTXC and SL11H-2000-BZK, CY7C68034-56LTXC uniquely combines ultra-low-power suspend operation, on-chip NAND ECC, and programmable GPIF - making it the sole option for battery-powered, self-contained USB NAND storage without external microcontrollers or error-correction logic.
Availability
CY7C68034-56LTXC is available at Aetrix Electronics and suitable for GPS navigation units, DVB video capture devices, and wireless presenter tools requiring stable component supply, long-term lifecycle support, and RoHS-compliant QFN packaging.
Supply support for CY7C68034-56LTXC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in USB, memory, PSoC, and connectivity solutions for embedded systems.
CY7C68034 belongs to the EZ-USB® NX2LP-Flex™ product line, designed specifically to enable cost-effective, firmware-flexible USB 2.0 mass storage controllers for NAND Flash-based portable electronics.
FAQ
Does CY7C68034-56LTXC require an external crystal?
Yes. The device requires a 24 MHz ±100 ppm fundamental-mode parallel-resonant crystal connected between XTALIN and XTALOUT, with 12 pF load capacitors (including 3 pF PCB trace capacitance per side). This crystal feeds the on-chip PLL to generate USB 480 MHz PHY clock and selectable 48/24/12 MHz CPU clocks.
Can CY7C68034 support NAND Flash with 4K-page size?
No. Per the official datasheet (Rev. *Q, Page 3), the default firmware supports only 512-byte and 2K-byte NAND page sizes - corresponding to up to 1 Gb and 8 Gb capacities respectively. 4K-page NAND is not supported in either default or documented custom firmware configurations.
Is the I²C interface active before NAND initialization?
No. The I²C controller remains disabled until after successful NAND Flash detection and firmware loading. It is not available during manufacturing mode or ROM-boot fallback, and cannot be used to configure NAND parameters prior to boot.
What is the maximum number of NAND Flash chips supported?
The device supports up to eight single-die NAND Flash chips (via eight CE# outputs) or four dual-die chips. This is achieved using six configurable CE#/GPIO pins plus two dedicated CE# pins, all accessible through the IOC and IOD ports per the pinout definition in the datasheet.
CY7C68034-56LTXC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- EZ-USB NX2LP-Flex™
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Controller Type:
- NAND Flash - USB
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-QFN-EP (8x8)
CY7C68034-56LTXC FAQ
1.How can I place an order for CY7C68034-56LTXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C68034-56LTXC on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY7C68034-56LTXC reliable?
The price and inventory of CY7C68034-56LTXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C68034-56LTXC is usually 5 days.
3.What payment methods are accepted for CY7C68034-56LTXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C68034-56LTXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C68034-56LTXC?
CY7C68034-56LTXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C68034-56LTXC order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY7C68034-56LTXC?
For technical support, including CY7C68034-56LTXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C68034-56LTXC requirements.
6.How does Aetrix verify that CY7C68034-56LTXC is sourced from the original manufacturer or authorized distributors?
All CY7C68034-56LTXC products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY7C68034-56LTXC meets industry standards.
7.What is the process for return or replacement of CY7C68034-56LTXC?
All CY7C68034-56LTXC units undergo pre-shipment inspection (PSI). If there is an issue with CY7C68034-56LTXC, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY7C68034-56LTXC part is unused and in its original packaging.
Return procedure for CY7C68034-56LTXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY7C68034-56LTXC Tags
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BQ2201SN-N
Texas Instruments
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DS1314S+
Analog Devices Inc./Maxim Integrated
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BQ2205LYPW
Texas Instruments
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MXD1210CSA+
Analog Devices Inc./Maxim Integrated
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MXD1210CPA+
Analog Devices Inc./Maxim Integrated
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4RCD0232KC1ATG
Renesas Electronics Corporation
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DS1312S-2+
Analog Devices Inc./Maxim Integrated
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DS1314S-2+T&R
Analog Devices Inc./Maxim Integrated
-
DS1321S+
Analog Devices Inc./Maxim Integrated
-
DS1312S+
Analog Devices Inc./Maxim Integrated
-
MXD1210ESA+
Analog Devices Inc./Maxim Integrated
-
DS1321E+
Analog Devices Inc./Maxim Integrated
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