Infineon Technologies CY7C68013A-56LTXC

Overview

CY7C68013A-56LTXC 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 operates at 3.3 V with 5-V tolerant I/O-enabling bus-powered video capture and memory card reader designs.

For engineers reviewing the CY7C68013A-56LTXC datasheet, CY7C68013A-56LTXC pinout, CY7C68013A-56LTXC application, or CY7C68013A-56LTXC equivalent, key selection criteria include GPIF waveform configurability, dual USART support, suspend current of 300 µA (typ), 4 programmable BULK/INTERRUPT/ISOCHRONOUS endpoints with double/triple/quad buffering, and compatibility with FX2 firmware and hardware layouts.

Technical Context

The CY7C68013A implements a hardware-accelerated USB 2.0 protocol stack via its Smart SIE, offloading enumeration, token handling, and error recovery from the 8051 core. Its GPIF operates independently of the CPU, generating precise timing waveforms for parallel interfaces like ATA, EPP, or DSP buses using programmable descriptor tables.

It supports three boot modes: USB download to internal RAM, EEPROM load at power-up, or external memory execution (not available in 56-pin package). The integrated I²C controller runs at nominal 100/400 kHz (measured ~85/300 kHz), and the 8051 executes instructions at four clocks per cycle with two data pointers and expanded interrupt vectors.

Key Specifications

Pinout & Package

Package: 56-pin QFN (7 mm × 7 mm, 0.5 mm pitch), lead-free, exposed thermal pad. Pin count and GPIO allocation match CY7C68013A specification: 24 general-purpose I/O pins, including dedicated USB D+/D–, CLKOUT, I²C SDA/SCL, and GPIF control lines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C68013A-56LTXC, the -100AXC offers greater I/O and memory expansion but increases PCB area and cost, while the -56LTXC variant prioritizes compactness and cost-efficiency over ultra-low-power suspend states.

Availability

CY7C68013A-56LTXC is available at Aetrix Electronics and suitable for portable video capture, memory card readers, legacy serial converters, and industrial data loggers requiring stable component supply across extended product lifecycles.

Supply support for CY7C68013A-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

Infineon Technologies acquired Cypress Semiconductor in 2020 and continues to manufacture, support, and extend the EZ-USB portfolio with full backward compatibility and long-term supply commitment.

This device belongs to the EZ-USB FX2LP family, designed specifically for cost-sensitive, high-bandwidth USB 2.0 peripheral applications where minimal external components and firmware portability from FX2 are critical.

FAQ

Is CY7C68013A-56LTXC pin-compatible with the original CY7C68013?

Yes, it is pin-compatible with the CY7C68013 in the 56-pin package. The FX2LP family maintains identical pin assignments, electrical characteristics, and footprint for direct replacement. However, firmware must be recompiled for the enhanced 8051 features and updated register map, particularly for GPIF and USB configuration registers.

Does CY7C68013A-56LTXC support USB device class drivers without custom host software?

It supports standard USB classes including CDC ACM (virtual COM port), HID, MSC (mass storage), and vendor-specific implementations. Class compliance depends on firmware implementation - Cypress provides reference firmware for CDC and MSC in AN65209, enabling plug-and-play operation on Windows, macOS, and Linux without custom driver development.

Can the GPIF interface be used to connect to an FPGA without external logic?

Yes, the GPIF provides up to 16 data lines, 6 control outputs, and 6 ready inputs with fully programmable timing - enabling direct, glueless connection to Xilinx or Intel FPGAs. Cypress GPIF Designer generates descriptor files compatible with Verilog/VHDL testbenches, and AN66806 documents synchronous/asynchronous handshake configurations for common protocols.

What is the maximum achievable data throughput in Slave FIFO mode?

In synchronous Slave FIFO mode with 16-bit data bus and 48 MHz CLKOUT, peak throughput reaches 96 MB/s. Real-world sustained throughput is 53 MB/s due to USB 2.0 protocol overhead and endpoint buffering constraints - verified in CY4661 reference design with external HDD interface and streaming benchmarks.