Infineon Technologies CY7C64215-56LTXC

Overview

CY7C64215-56LTXC from Infineon Technologies (formerly Cypress Semiconductor) is a full-speed USB 2.0 microcontroller featuring an M8C Harvard-architecture CPU running up to 24 MHz, 16 KB flash, 1 KB SRAM, and integrated USB PHY with no external crystal required. It integrates four digital and six analog configurable blocks, supports USB-IF TID# 40000110 certification, and operates from 3.15 V to 5.25 V across –40 °C to +85 °C industrial temperature range in a 56-pin QFN package. Used in USB human interface devices requiring self-timed USB communication and mixed-signal peripheral customization.

For engineers reviewing the CY7C64215-56LTXC datasheet, CY7C64215-56LTXC pinout, CY7C64215-56LTXC application, or CY7C64215-56LTXC equivalent, key selection considerations include USB endpoint configuration (1 control + 4 unidirectional), internal ±0.25% IMO accuracy for USB timing, programmable GPIO drive modes (25 mA sink, open-drain, pull-up/down), delta-sigma ADC resolution (up to 14-bit), and I²C/SPI/UART block availability without external components.

Technical Context

The CY7C64215-56LTXC implements a configurable PSoC architecture where four digital enCoRe III blocks and six analog blocks interconnect via global digital and analog buses, enabling user-defined peripherals such as 8-/16-bit PWMs, UARTs, I²C masters, SPI interfaces, and delta-sigma ADCs. Its M8C core executes at up to 24 MHz with interrupt support for 20 vectors and includes dedicated hardware for USB protocol handling.

USB operation relies on a self-tuning 24-MHz internal main oscillator (IMO) doubled to 48 MHz for USB clocking, achieving ±0.25% accuracy without external crystals-enabled by setting the OSC_LOCK bit. Industrial temperature operation (–40 °C to +85 °C) requires the external clock oscillator (ECO), available only on the 56-pin QFN package, to maintain USB timing compliance.

Key Specifications

Pinout & Package

Package: 56-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad. RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CP2102N-A02-GQFN24 and STM32F072CBT6, the CY7C64215-56LTXC uniquely combines USB-IF-certified full-speed connectivity, programmable analog/digital blocks, and crystal-free operation in one 56-pin QFN-enabling rapid mixed-signal USB peripheral development without external timing or signal-conditioning components.

Availability

CY7C64215-56LTXC is available at Aetrix Electronics and suitable for PC human interface devices, gaming peripherals, POS terminal accessories, and USB-to-serial bridge designs requiring stable component supply, long-term industrial temperature support, and crystal-free USB timing.

Supply support for CY7C64215-56LTXC 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 is a global semiconductor leader headquartered in Munich, Germany, delivering power management, sensing, connectivity, and microcontroller solutions for automotive, industrial, and IoT applications.

The CY7C64215 belongs to Infineon's enCoRe™ III family-a PSoC-based full-speed USB microcontroller line designed specifically for cost-sensitive, space-constrained human interface and mixed-signal peripheral applications requiring integrated analog front-ends and zero-component USB timing.

FAQ

Does CY7C64215-56LTXC require an external crystal for USB operation?

No. The device uses an internal main oscillator (IMO) that self-tunes to ±0.25% accuracy for USB full-speed timing, eliminating the need for an external crystal in commercial temperature applications. An external clock oscillator (ECO) is required only for guaranteed USB compliance across the full industrial temperature range (–40 °C to +85 °C), and is supported exclusively on the 56-pin QFN package.

How many analog-to-digital converter channels can be implemented simultaneously?

Up to six independent analog blocks can be configured as ADCs, with dual-channel analog mux bus enabling simultaneous sampling of two inputs. Each block supports delta-sigma or incremental conversion with resolution selectable from 6 to 14 bits. Total usable analog input pins are 48 (across Ports 0–5), routed flexibly to the analog array via programmable multiplexers.

What development tools are supported for firmware programming?

Cypress PSoC Designer™ IDE (now maintained by Infineon) is the official development environment, providing graphical component configuration, automatic code generation, full-speed in-circuit emulation, 128 KB trace memory, and ISSP-based programming via USB. No external programmer is required-debugging and flashing are performed directly through the USB interface using the onboard bootloader.

Can CY7C64215-56LTXC operate as both USB HID and CDC device simultaneously?

No. The device supports only one USB device class at a time due to its single USB controller with fixed endpoint allocation (1 bidirectional control endpoint + 4 unidirectional endpoints). Firmware must select either HID, CDC, or another supported class during enumeration; dual-class operation requires external USB hub logic or a more advanced USB controller with multiple interfaces.