Infineon Technologies CY7C64613-52NC

Overview

CY7C64613-52NC from Cypress Semiconductor is a full-speed USB 2.0 microcontroller integrating an enhanced 8051 core, USB Serial Interface Engine (SIE), 8 KB RAM, four 64-byte FIFOs, and General Programmable Interface (GPIF). It operates at 48 MHz (or 24 MHz), supports 14 bulk/interrupt endpoints (64-byte max packet), 16 isochronous endpoints (2 KB shared double-buffered RAM), and runs firmware loaded via USB or I²C EEPROM. It targets high-throughput USB peripheral designs such as DSL modems and memory card readers.

For engineers reviewing the CY7C64613-52NC datasheet, CY7C64613-52NC pinout, CY7C64613-52NC application, or CY7C64613-52NC equivalent, key selection criteria include USB endpoint configuration flexibility, GPIF programmability for parallel interface bridging, DMA-accelerated data transfer timing (20.8 ns/byte), 52-pin PQFP footprint constraints, and soft firmware loading capability without external Flash.

Technical Context

The CY7C64613-52NC implements a USB 2.0 full-speed (12 Mbps) device controller with a hardware SIE that handles enumeration, SETUP packet parsing, and descriptor streaming autonomously-enabling firmware download before 8051 execution. Its 4-clock-cycle 8051 core executes from on-chip RAM, supporting dual UARTs, three timers, and two data pointers.

GPIF provides reconfigurable 8-/16-bit parallel waveform generation with up to 4 RDY inputs and 4 CTL outputs, enabling glueless interfacing to ASICs, DSPs, or legacy peripherals like ATAPI. DMA moves data between slave FIFOs, RAM, and ports in synchronous mode at one byte per 48-MHz clock cycle.

Key Specifications

Pinout & Package

Package: 52-pin Plastic Quad Flat Pack (PQFP), 10 mm × 10 mm body, 0.65 mm lead pitch, JEDEC MS-026AC compliant. Pinout validated from Cypress datasheet 38-08005 Rev. ** (pages 9–13).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C64613-52NC, CY7C68013A offers higher USB speed and memory but sacrifices native isochronous streaming capability, while FT232H reduces firmware overhead at the cost of design flexibility and real-time control-making CY7C64613-52NC optimal for bandwidth-constrained, firmware-defined USB peripherals requiring deterministic timing.

Availability

CY7C64613-52NC is available at Aetrix Electronics and suitable for DSL modems, memory card readers, legacy conversion devices, and USB camera modules requiring stable component supply and long-term industrial availability.

Supply support for CY7C64613-52NC 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 industrial, automotive, and consumer markets.

The EZ-USB FX family-including CY7C64613-was designed specifically for USB peripheral developers needing integrated SIE, programmable interface logic, and soft firmware loading without external memory, targeting cost-sensitive, high-volume USB device applications.

FAQ

Does CY7C64613-52NC support USB high-speed (480 Mbps) operation?

No. CY7C64613-52NC is a full-speed USB 2.0 device, limited to 12 Mbps. It lacks the high-speed transceiver, chirp detection circuitry, and 480 Mbps PHY required for high-speed operation. Designs requiring >12 Mbps must use CY7C68013A or later FX2LP derivatives.

Can the 52-pin package access external memory via the 8051 bus?

No. The 52-pin PQFP variant does not expose the 8051 address/data buses or control signals (RD#, WR#, CS#, etc.). External memory expansion is only supported on the 128-pin PQFP version. The 52-pin package relies entirely on its 8 KB internal RAM.

What is the role of the GPIF in CY7C64613-52NC?

GPIF is a programmable 8-/16-bit parallel interface that generates custom read/write strobes and handshaking signals. It replaces external glue logic by directly driving ASICs, DSPs, or legacy peripherals (e.g., ATAPI, printer ports) using waveform descriptors stored in on-chip RAM-enabling protocol-specific timing without CPU intervention.

How is firmware loaded onto CY7C64613-52NC at power-up?

Firmware loads either via USB (default "soft" mode) during enumeration, or from an I²C-connected EEPROM containing boot code. The EEPROM method uses a configuration byte to select 24 MHz or 48 MHz CPU speed and enables standalone operation without host USB connection.