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Infineon Technologies CY7C68000A-56LFXCT
- Part No.:
- CY7C68000A-56LFXCT
- Manufacturer:
- Infineon Technologies
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
CY7C68000A-56LFXCT.pdf
- Description:
- IC TRANSCEIVER FULL 1/1 56QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,756
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Product details
Overview
CY7C68000A-56LFXCT from Cypress Semiconductor is a USB 2.0 UTMI-compliant transceiver IC implementing physical-layer serialization/deserialization between USB differential signaling (DPLUS/DMINUS) and parallel host interface. It supports both High Speed (480 Mbps) and Full Speed (12 Mbps) modes, integrates internal 1.5 kΩ DPLUS pull-up and on-die impedance termination, operates at 3.3 V, and interfaces with Intel Monahans application processors via 8-bit @ 60 MHz or 16-bit @ 30 MHz parallel bus.
For engineers reviewing the CY7C68000A-56LFXCT datasheet, CY7C68000A-56LFXCT pinout, CY7C68000A-56LFXCT application, or CY7C68000A-56LFXCT equivalent, key selection criteria include UTMI v1.05 compliance, tristate-enabled UTMI bus sharing capability, synchronous field/EOP detection/generation, integrated clock recovery and bit stuffing logic, and dual-package availability (56-pin QFN/VFBGA).
Technical Context
The CY7C68000A implements a full-featured USB 2.0 PHY with integrated PLL-based clock generation from a 24 MHz crystal, supporting dynamic switching between HS and FS signaling via XcvrSelect and TermSelect control pins. Its analog front-end includes factory-trimmed 90 Ω differential termination and internal 1.5 kΩ DPLUS pull-up, eliminating external resistors.
It provides synchronous parallel interface timing with CLK-driven RXValid/TXValid handshaking, LineState[1:0] synchronized to CLK for real-time bus state monitoring, and OpMode[1:0]-controlled test modes including soft disconnect and NRZI/bitsstuffing bypass - all while maintaining strict USB 2.0 electrical compliance in both operational states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed Modes | High Speed (480 Mbps) and Full Speed (12 Mbps); no Low Speed support |
| Parallel Interface | Configurable 8-bit @ 60 MHz or 16-bit @ 30 MHz bidirectional bus |
| Supply Voltage | 3.3 V ±10%; separate AVCC/AGND for analog section |
| Crystal Input | 24 MHz ±100 ppm parallel-resonant fundamental-mode crystal |
| Termination | Internal 90 Ω differential USB line termination + 1.5 kΩ DPLUS pull-up |
| Compliance | USB 2.0 specification certified; UTMI+ v1.05 compliant |
| Operational Modes | Normal, soft disconnect (non-driving), NRZI/bitsstuffing bypass, reserved |
Pinout & Package
Package: 56-pin QFN (7 mm × 7 mm, 0.5 mm pitch) and 56-pin VFBGA (4.5 mm × 4.5 mm, 0.4 mm pitch). Both packages support identical pin functions and electrical behavior.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D[15:0] | Bidirectional data bus | 16-bit parallel interface; D[7:0] used in 8-bit mode; D[15:8] active only when DataBus16_8 = 1 |
| CLK | Output clock | Synchronous timing reference for RXValid/TXValid handshaking; 30 MHz (16-bit) or 60 MHz (8-bit) |
| XcvrSelect | Input control | Selects transceiver core: 0 = HS, 1 = FS; must coordinate with TermSelect |
| TermSelect | Input control | Selects termination: 0 = HS (SE0), 1 = FS (1.5 kΩ pull-up enabled) |
| Suspend / Tri_state | Input control | Suspend reduces power; Tri_state (enabled only during Suspend) tristates all I/Os for UTMI bus sharing |
| LineState[1:0] | Output status | Synchronized combinatorial outputs reflecting real-time DMINUS/DPLUS states (00=SE0, 01=J, 10=K, 11=SE1) |
| XTALIN / XTALOUT | Crystal interface | 24 MHz crystal connection points; internal oscillator + PLL generate system clocks |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 PHY | Eliminates need for external termination resistors and discrete clock recovery circuitry |
| UTMI+ v1.05 Compliance | Ensures interoperability with standard UTMI host controllers without protocol translation |
| Tristate-capable UTMI Bus | Enables shared UTMI interface in multi-peripheral mobile SoC designs, conserving GPIO count |
| Synchronous Field & EOP Handling | Hardware-accelerated SYNC packet insertion and EOP detection reduce host software overhead |
| Bit Stuffing/Unstuffing Logic | On-chip NRZI encoding/decoding and bit stuffing management offloads link-layer processing from host |
Applications
| Smartphone USB Connectivity | Intel Monahans-Based Handhelds |
|---|---|
|
Use Scenario: High-speed peripheral attachment in space-constrained smartphone platforms requiring minimal external components. IC Role / Device Role / Timing Role: USB 2.0 PHY transceiver providing HS/FS signal conversion and clock recovery between USB connector and baseband processor. Use Value: Internal 1.5 kΩ pull-up and 90 Ω termination reduce BOM count by 3 passive components; QFN package enables compact layout. |
Use Scenario: Certified USB interface for Intel Monahans-P/L application processors in PDA phones and media players. IC Role / Device Role / Timing Role: UTMI-compliant PHY enabling seamless integration with Monahans' native USB controller, validated by Intel. Use Value: Eliminates need for external clock synthesis; supports 60 MHz 8-bit interface for bandwidth-constrained processor buses. |
| Portable Media Player Docking | DSL Modem USB Host Interface |
|
Use Scenario: Reliable high-bandwidth data transfer between portable media players and PC docking stations. IC Role / Device Role / Timing Role: Bidirectional USB transceiver managing HS packet framing, EOP detection, and synchronous field generation. Use Value: Hardware-accelerated bit stuffing/unstuffing ensures deterministic latency; RXError flag enables robust error recovery. |
Use Scenario: USB 2.0 host port implementation in consumer DSL modems requiring low-power suspend/resume operation. IC Role / Device Role / Timing Role: PHY-level interface handling USB reset, suspend, resume, and HS identification per USB 2.0 spec. Use Value: Suspend + Tri_state mode reduces system power by >90% during idle; internal PLL stabilizes in ~200 μs after resume. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 2.0 UTMI transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISP1504A | Single-supply 3.3 V operation; no internal crystal oscillator - requires external 48 MHz clock | Lacks integrated 24 MHz crystal interface and PLL; higher external component count | Preferred where board-level 48 MHz clock is already available and crystal area is constrained |
| USB3300 | Supports HS/FS/LS modes; includes integrated USB switch and overvoltage protection | Broader speed coverage but larger footprint; not optimized for Monahans co-design | Chosen when Low Speed device support or enhanced ESD robustness (>8 kV HBM) is required |
Compared with ISP1504A and USB3300, the CY7C68000A-56LFXCT delivers tighter integration for Monahans-based designs through its factory-characterized UTMI interface, embedded crystal oscillator/PLL, and tristate-enabled bus sharing - reducing PCB area and validation effort in mobile handset applications.
Availability
CY7C68000A-56LFXCT is available at Aetrix Electronics and suitable for smartphone connectivity, portable media player docking, and DSL modem USB host interfaces requiring stable component supply across extended production lifecycles.
Supply support for CY7C68000A-56LFXCT 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 wireless solutions for embedded systems.
The MoBL-USB™ TX2 product line was engineered specifically for mobile and handheld applications demanding low-power, small-footprint USB 2.0 PHY integration with application processors - emphasizing UTMI compliance, bus sharing, and minimal external component count.
FAQ
What is the function of the Tri_state pin, and when can it be asserted?
The Tri_state pin places all I/Os and outputs into high-impedance state, enabling UTMI bus sharing with other devices. It can only be asserted while the device is in Suspend mode (Suspend = 0). Assertion occurs within ~50 ns; de-assertion restores drive capability in ~50 ns. Unused inputs must be tied HIGH or LOW to prevent floating states.
Does CY7C68000A-56LFXCT support Low Speed (1.5 Mbps) USB operation?
No. The CY7C68000A-56LFXCT supports only Full Speed (12 Mbps) and High Speed (480 Mbps) USB 2.0 signaling modes. It explicitly excludes Low Speed operation per its functional specification and pin-level timing requirements, which are optimized for FS/HS only.
How does the device handle clock recovery and synchronization without an external reference?
The device uses an internal PLL that multiplies a 24 MHz crystal input (via XTALIN/XTALOUT) to generate precise 30 MHz or 60 MHz parallel interface clocks. USB serial clock recovery is performed digitally from the incoming DPLUS/DMINUS stream, eliminating need for external analog PLL components or clock data recovery ICs.
What is the role of ValidH in 16-bit versus 8-bit interface configurations?
In 16-bit mode (DataBus16_8 = 1), ValidH acts as an output indicating validity of D[15:8] during receive, or as an input confirming validity of D[15:8] during transmit. In 8-bit mode (DataBus16_8 = 0), ValidH is undefined. This signal enables byte-level flow control for partial-word transfers in high-throughput applications.
CY7C68000A-56LFXCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- CY7C
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Transceiver
- Protocol:
- USB 2.0
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- Full
- Receiver Hysteresis:
- -
- Data Rate:
- -
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-QFN (8x8)
CY7C68000A-56LFXCT FAQ
1.How can I place an order for CY7C68000A-56LFXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C68000A-56LFXCT 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 CY7C68000A-56LFXCT reliable?
The price and inventory of CY7C68000A-56LFXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C68000A-56LFXCT is usually 5 days.
3.What payment methods are accepted for CY7C68000A-56LFXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C68000A-56LFXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C68000A-56LFXCT?
CY7C68000A-56LFXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C68000A-56LFXCT 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 CY7C68000A-56LFXCT?
For technical support, including CY7C68000A-56LFXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C68000A-56LFXCT requirements.
6.How does Aetrix verify that CY7C68000A-56LFXCT is sourced from the original manufacturer or authorized distributors?
All CY7C68000A-56LFXCT 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 CY7C68000A-56LFXCT meets industry standards.
7.What is the process for return or replacement of CY7C68000A-56LFXCT?
All CY7C68000A-56LFXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C68000A-56LFXCT, 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 CY7C68000A-56LFXCT part is unused and in its original packaging.
Return procedure for CY7C68000A-56LFXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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