Infineon Technologies CY7C68013A-56LTXIT

Overview

CY7C68013A-56LTXIT from Infineon Technologies (formerly Cypress Semiconductor) is a USB 2.0 high-speed peripheral controller integrating an enhanced 8051 microprocessor, USB 2.0 transceiver, serial interface engine (SIE), and general programmable interface (GPIF) in a single 56-pin QFN package. It supports 480 Mbps signaling, delivers up to 53 MB/s data throughput, operates at 12/24/48 MHz CPU clock, features 16 KB on-chip RAM, and targets bus-powered USB peripheral designs such as video capture dongles and memory card readers.

For engineers reviewing the CY7C68013A-56LTXIT datasheet, CY7C68013A-56LTXIT pinout, CY7C68013A-56LTXIT application, or CY7C68013A-56LTXIT equivalent, key selection criteria include GPIF waveform configurability, dual USART support, suspend current of 300 µA (typ), 8-bit/16-bit external data interface capability, and compatibility with FX2 firmware and hardware layouts.

Technical Context

The CY7C68013A implements a hardware-accelerated USB 2.0 stack via its Smart SIE, offloading protocol handling (including SETUP, IN/OUT token management, and error recovery) from the 8051 core. Its GPIF operates independently of the CPU, enabling direct parallel interface control using programmable waveform descriptors for timing-critical peripherals like ATA, EPP, or SRAM.

It supports four configurable 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 kHz or 400 kHz (measured ~85 kHz / ~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), RoHS-compliant, industrial temperature grade (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C68013A-56LTXIT, the 100-pin variant trades compactness for I/O scalability, while CY7C68014A sacrifices noise margin for ultra-low suspend current - both retain identical GPIF, SIE, and 8051 architecture for seamless firmware reuse.

Availability

CY7C68013A-56LTXIT is available at Aetrix Electronics and suitable for portable video capture dongles, USB-to-ATA bridge adapters, and industrial memory card readers requiring stable component supply across extended product lifecycles.

Supply support for CY7C68013A-56LTXIT 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 the EZ-USB FX2LP portfolio as part of its broad USB connectivity and microcontroller offering.

The CY7C68013A belongs to the EZ-USB FX2LP family, designed specifically for cost-sensitive, high-throughput USB 2.0 peripheral applications where firmware flexibility, low power, and minimal external components are critical.

FAQ

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

Yes, CY7C68013A-56LTXIT is fit-, form-, and function-compatible with the CY7C68013 FX2 in the 56-pin package. Pin assignments, register map, and firmware binary are identical; it adds enhanced 8051 features and lower power consumption without requiring PCB redesign.

What development tools support GPIF waveform design for this device?

Cypress's GPIF Designer GUI tool (included with FX2LP SDK) generates waveform descriptor files (.gpf) directly from timing diagrams. These compile into firmware that configures the GPIF state machine - no HDL or FPGA tools required. Example configurations for ATA and SRAM interfaces are provided in AN66806.

Does this device require an external crystal, and what are the specifications?

Yes, CY7C68013A-56LTXIT requires a 24 MHz ±100 ppm parallel-resonant fundamental-mode crystal with 500 µW drive level and 12 pF load capacitance. The on-chip PLL uses this to generate the 480 MHz USB PHY clock and derive 12/24/48 MHz CPU clocks.

Can the 16 KB on-chip RAM be used for both code and data simultaneously?

Yes, the 16 KB RAM is unified and configurable via firmware: portions can be allocated as code space (for downloaded USB descriptors and handlers), data space (for endpoint buffers), or mixed use. No hardware partitioning - allocation is managed entirely in 8051 firmware at runtime.