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Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

Infineon Technologies CY7C68016A-56LFXC

Name: CY7C68016A-56LFXC
Brand: Infineon Technologies
SKU: CY7C68016A-56LFXC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY7C68016A-56LFXC

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: 56-VFQFN Exposed Pad

Datasheet:: CY7C68016A-56LFXC.pdf

Description:: IC MCU USB PERIPH HI SPD 56VQFN

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Product details

Overview

CY7C68016A-56LFXC from Infineon Technologies (formerly Cypress Semiconductor) is a USB 2.0 high-speed peripheral controller integrating an enhanced 8051 microprocessor, USB 2.0 transceiver, smart serial interface engine (SIE), and general programmable interface (GPIF) in a single 56-pin QFN package. It delivers up to 53 MB/s data throughput, supports 48/24/12 MHz CPU clocking, includes 16 KB on-chip RAM, and draws only 100 µA typical current in suspend mode - enabling compact, bus-powered USB devices such as portable video recorders and memory card readers.

For engineers reviewing the CY7C68016A-56LFXC datasheet, CY7C68016A-56LFXC pinout, CY7C68016A-56LFXC application, or CY7C68016A-56LFXC equivalent, key selection criteria include its GPIF waveform programmability, dual USART support, 26 GPIOs in 56-pin QFN, USB 2.0 Hi-Speed certification (TID #40460272), and compatibility with FX2LP firmware and hardware design practices.

Technical Context

The CY7C68016A implements a dedicated USB 2.0 PHY with hardware-accelerated SIE handling, offloading protocol management from the 8051 core and enabling deterministic endpoint transfers. Its GPIF operates independently of the CPU, supporting fully configurable 8-/16-bit parallel waveforms with up to six RDY inputs and six CTL outputs for glueless interfacing to ASICs, DSPs, or ATA/EPP peripherals.

It features four programmable BULK/INTERRUPT/ISOCHRONOUS endpoints with double/triple/quad buffering, plus one additional 64-byte BULK/INTERRUPT endpoint. The integrated I²C controller runs at nominal 100/400 kHz (measured ~85/300 kHz), and the 8051 executes instructions at four clocks per cycle across 12/24/48 MHz modes with two data pointers and expanded interrupt vectors.

Key Specifications

Parameter	Value and Actual Design Meaning
USB Speed	Hi-Speed (480 Mbps) and Full-Speed (12 Mbps); certified per USB-IF TID #40460272 - ensures interoperability with host controllers without custom driver development.
CPU Core	Enhanced 8051 running at 12/24/48 MHz (4 clocks/instruction); enables real-time USB endpoint management while executing application firmware in on-chip RAM.
On-chip RAM	16 KB code/data RAM; eliminates need for external program memory in most firmware deployments and supports USB-based runtime code download.
Suspend Current	100 µA typical; meets USB battery-powered device requirements and enables >100-hour operation on coin-cell backup in portable designs.
GPIO Count	26 GPIOs in 56-pin QFN package; provides two more I/O than CY7C68013A/14A, enabling additional control signals or status indicators within identical PCB footprint.
GPIF Interface	Programmable 8-/16-bit parallel interface with up to 6 RDY inputs and 6 CTL outputs; allows direct, timing-precise connection to FPGA, SRAM, or ATA without external logic.
I²C Controller	Integrated master-only I²C block supporting 100/400 kHz modes (actual measured frequencies ~85/300 kHz); simplifies communication with EEPROM, sensors, or PMICs using standard firmware drivers.

Pinout & Package

Package: 56-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, exposed thermal pad.

Pin/Terminal	Circuit Role	Design Meaning
D+ / D−	USB 2.0 differential data pair	Direct connection to USB connector; internal 1.5-kΩ pull-up on D+ enables automatic speed detection and enumeration.
CLKOUT	Configurable 8051 clock output	Provides 12/24/48 MHz square wave for synchronizing external logic or debugging; three-state and invertible via CPUCS register.
SLCS#, SLRD#, SLWR#	Slave FIFO control strobes	Enable synchronous/asynchronous 8-/16-bit data transfer between FX2LP and external peripherals without CPU intervention.
RDY0–RDY5	GPIF ready inputs	Allow dynamic waveform adjustment based on external device readiness - e.g., wait states for slow SRAM or FPGA handshake signals.
CTL0–CTL5	GPIF control outputs	Drive external device control lines (e.g., chip select, write enable, address strobe) directly from GPIF state machine.
PORTB[7:0]	General-purpose I/O port	Bi-directional, 5-V tolerant; usable as data bus, address lines, or discrete control I/O depending on GPIF/FIFO configuration.

Key Features

Feature	Design Value
Smart SIE Hardware	Handles USB token, handshake, and error recovery in silicon - reduces 8051 firmware overhead and guarantees USB 2.0 compliance without software protocol stack.
GPIF Waveform Programmability	Supports user-defined timing diagrams via descriptor tables; enables interface to non-standard peripherals (e.g., custom ASICs) without FPGA or CPLD.
Dual USARTs	Two independent UARTs with standard 8051 SFR mapping; permits simultaneous debug console and peripheral communication (e.g., GPS + sensor hub).
Flexible Boot Sources	Firmware loads from USB, internal RAM, external EEPROM, or external memory - simplifies field updates and eliminates boot ROM dependency.
Integrated ECC Generator	Hardware-based Smart Media ECC generation; offloads error correction computation from CPU for NAND/CompactFlash interfacing.

Applications

Portable Video Recorder

Memory Card Reader

Use Scenario: Compact handheld device capturing MPEG-2/4 video streams from CMOS sensor and storing to SD/CF cards.

IC Role / Device Role / Timing Role: USB 2.0 peripheral controller managing high-bandwidth isochronous video upload to host PC while coordinating GPIF-driven sensor interface and Smart Media ECC for flash writes.

Use Value: Achieves sustained 40+ MB/s USB transfer using quad-buffered ISOCHRONOUS endpoints and eliminates external FIFO logic via integrated 4× FIFO architecture.

Use Scenario: Multi-format card reader supporting SD, MMC, and CompactFlash via shared parallel bus.

IC Role / Device Role / Timing Role: USB bridge IC providing glueless 16-bit slave FIFO interface to card controller and managing USB mass storage class (MSC) protocol via Smart SIE.

Use Value: Reduces BOM count by integrating USB transceiver, SIE, 8051, and ECC generator - enabling single-chip solution with <5 mm × 5 mm PCB area.

DSL Modem Management Interface

Legacy Device Converter

Use Scenario: Embedded management port in DSL CPE, exposing modem status, statistics, and firmware update over USB.

IC Role / Device Role / Timing Role: USB-to-parallel/serial bridge with dual USARTs handling AT command interface to baseband processor and debug logging over second UART.

Use Value: Enables USB-CDC ACM class operation with minimal firmware; suspend current ≤100 µA extends uptime during modem standby without auxiliary power.

Use Scenario: Industrial adapter converting RS-232/RS-485 or parallel printer ports to USB 2.0.

IC Role / Device Role / Timing Role: Protocol translation engine using GPIF to emulate legacy timing (e.g., Centronics strobe) and 8051 firmware to parse command sequences.

Use Value: Supports variable-width strobe pulses and multi-cycle handshaking via programmable GPIF descriptors - eliminating need for external timing logic or microcontroller co-processor.

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB 2.0 peripheral controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY7C68013A-56LFXC	Same 56-pin QFN package but 24 GPIOs and 300 µA typical suspend current; lacks two GPIOs and optimized low-power circuitry.	Targeted at non-battery-powered applications where higher suspend current is acceptable.	Select when cost sensitivity outweighs ultra-low-power requirement and GPIO count suffices.
CY7C68014A-56LFXC	Identical pinout and suspend current (100 µA), but supports external memory interface (128-pin only); not offered in 56-pin variant.	Not available in 56-pin QFN - requires redesign to 100/128-pin package for external memory expansion.	Choose only if external memory bandwidth >16 KB RAM is required and board space allows larger package.

Compared with CY7C68013A-56LFXC and CY7C68014A-56LFXC, the CY7C68016A-56LFXC uniquely combines 26 GPIOs, 100 µA suspend current, and 56-pin QFN form factor - making it the sole option for space-constrained, battery-operated USB 2.0 peripherals requiring maximum I/O density.

Availability

CY7C68016A-56LFXC is available at Aetrix Electronics and suitable for portable video recorders, memory card readers, DSL modem management interfaces, and legacy device converters requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for CY7C68016A-56LFXC 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

Infineon Technologies acquired Cypress Semiconductor in 2020 and maintains full product continuity, documentation, and technical support for the EZ-USB FX2LP family.

The CY7C68016A belongs to the EZ-USB FX2LP USB microcontroller product line, designed specifically for cost-sensitive, high-bandwidth USB 2.0 peripheral applications requiring minimal external components and rapid time-to-market.

FAQ

Is CY7C68016A-56LFXC pin-compatible with CY7C68013A-56LFXC?

Yes, CY7C68016A-56LFXC is pin-compatible with CY7C68013A-56LFXC in the 56-pin QFN package. Both share identical pin assignments, power domains, and USB signal routing. However, CY7C68016A adds two additional GPIOs (PORTC.6 and PORTC.7) mapped to previously NC pins - requiring minor PCB layout verification if migrating from CY7C68013A.

What firmware changes are needed when upgrading from CY7C68013A to CY7C68016A?

No firmware changes are required for basic USB functionality, as CY7C68016A is object-code-compatible and functionally a superset of CY7C68013A. Firmware leveraging the two extra GPIOs or optimized low-power modes must explicitly configure PORTC.6/PORTC.7 and use new suspend control bits in the POWER register.

Does CY7C68016A-56LFXC support USB device charging (BC1.2 or USB PD)?

No, CY7C68016A-56LFXC does not implement Battery Charging Specification (BC1.2) or USB Power Delivery (PD) negotiation. It operates strictly as a USB 2.0 peripheral device and relies on host-provided VBUS for power. Dedicated charging port controllers (e.g., CYPD3177) must be used alongside it for BC1.2/PD support.

Can the GPIF interface drive a 16-bit SRAM directly without external logic?

Yes, the GPIF can directly drive 16-bit SRAM using synchronous or asynchronous slave FIFO mode. With proper descriptor configuration, it generates address, CE#, OE#, WE#, and byte-enable signals - verified in AN57322 and CY4612 reference design. No glue logic is required for standard JEDEC SRAM timing.

CY7C68016A-56LFXC Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: EZ-USB FX2LP™

Package/Case:: 56-VFQFN Exposed Pad

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Applications:: USB Microcontroller

Core Processor:: 8051

Program Memory Type:: ROMless

Controller Series:: CY7C680xx

RAM Size:: 16K x 8

Interface:: I2C, USB, USART

Number of I/O:: 26

Voltage - Supply:: 3V ~ 3.6V

Operating Temperature:: 0°C ~ 70°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 56-QFN (8x8)

CY7C68016A-56LFXC FAQ

1.How can I place an order for CY7C68016A-56LFXC through Aetrix?

Please submit a Request for Quotation (RFQ) for CY7C68016A-56LFXC 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 CY7C68016A-56LFXC reliable?

The price and inventory of CY7C68016A-56LFXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C68016A-56LFXC is usually 5 days.

3.What payment methods are accepted for CY7C68016A-56LFXC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C68016A-56LFXC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY7C68016A-56LFXC?

CY7C68016A-56LFXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY7C68016A-56LFXC 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 CY7C68016A-56LFXC?

For technical support, including CY7C68016A-56LFXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C68016A-56LFXC requirements.

6.How does Aetrix verify that CY7C68016A-56LFXC is sourced from the original manufacturer or authorized distributors?

All CY7C68016A-56LFXC 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 CY7C68016A-56LFXC meets industry standards.

7.What is the process for return or replacement of CY7C68016A-56LFXC?

All CY7C68016A-56LFXC units undergo pre-shipment inspection (PSI). If there is an issue with CY7C68016A-56LFXC, 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 CY7C68016A-56LFXC part is unused and in its original packaging.

Return procedure for CY7C68016A-56LFXC:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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