Infineon Technologies CY7C64215-56LTXI

Overview

CY7C64215-56LTXI 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 delivers ±0.25% USB clock accuracy via internal self-tuning oscillator and supports industrial temperature range (–40 °C to +85 °C) using its external clock oscillator option on the 56-pin QFN package.

For engineers reviewing the CY7C64215-56LTXI datasheet, CY7C64215-56LTXI pinout, CY7C64215-56LTXI application, or CY7C64215-56LTXI equivalent, key selection criteria include USB endpoint configuration (5 endpoints, 256-byte buffer), analog subsystem capability (6 configurable analog blocks supporting 6–14-bit ADCs), digital peripheral flexibility (4 digital blocks for PWM/timer/I²C/SPI/UART), GPIO drive strength (25 mA sink), and programmable I/O modes (pull-up/pull-down/open-drain/strong/high-Z).

Technical Context

The CY7C64215-56LTXI implements a configurable PSoC-based architecture where four digital enCoRe III blocks and six analog enCoRe III blocks interconnect via global digital and analog buses. Its M8C core executes at up to 24 MHz with interrupt support for 20 vectors and integrates dual clock domains: a 24/48-MHz internal main oscillator (IMO) tuned to ±0.25% for USB compliance and a 32-kHz internal low-speed oscillator (ILO) for sleep/WDT functions.

Analog functionality includes delta-sigma and incremental ADCs (6–14-bit resolution), programmable threshold comparators, and flexible analog routing through an 8:1 input multiplexer and dual-section analog mux bus. Digital peripherals are synthesized from combinable 8-bit blocks supporting UART (with parity), SPI (master/slave), I²C (slave/master/multimaster up to 400 kHz), and CYFISNP radio interface modules.

Key Specifications

Pinout & Package

Package: 56-pin QFN (7 mm × 7 mm, 0.5 mm pitch), 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 PSOC4000S and FT232H, CY7C64215-56LTXI uniquely balances integrated analog signal conditioning, USB protocol stack execution, and low-cost QFN packaging-making it optimal for cost-sensitive, mixed-signal USB peripherals where embedded firmware and sensor interfacing coexist on one die.

Availability

CY7C64215-56LTXI is available at Aetrix Electronics and suitable for PC human interface devices, gaming peripherals, POS terminals, and barcode scanners requiring stable component supply and long-term industrial temperature support.

Supply support for CY7C64215-56LTXI 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, specializing in power management, automotive, industrial, and security solutions.

The CY7C64215 belongs to the enCoRe™ III family-a line of configurable full-speed USB microcontrollers designed specifically for cost-optimized, mixed-signal human interface and consumer peripheral applications with minimal external components.

FAQ

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

No. The device uses an internal 24-MHz main oscillator (IMO) that self-tunes to ±0.25% accuracy for USB full-speed compliance. An external crystal (XIN/XOUT) is only required for industrial temperature operation (–40 °C to +85 °C) to maintain USB timing stability across voltage and temperature extremes.

How many USB endpoints does CY7C64215-56LTXI support?

The device supports five total endpoints: one bidirectional control endpoint (EP0) and four unidirectional endpoints (EP1–EP4). Endpoint direction and type (bulk/interrupt) are configured in firmware using the USB configuration descriptor and endpoint control registers.

Can CY7C64215-56LTXI perform analog-to-digital conversion without external components?

Yes. It integrates six configurable analog blocks capable of delta-sigma or incremental ADC operation with resolutions from 6 to 14 bits. These operate directly on GPIO pins assigned to analog-capable ports (P0, P2), requiring only proper PCB layout and reference decoupling-not external opamps or ADC ICs.

What development tools are supported for CY7C64215-56LTXI firmware design?

Infineon provides free PSoC Designer software for schematic-based component configuration, code generation, and debugging. Hardware support includes the MiniProg3 programmer and full-speed in-circuit emulator with 128 KB trace memory, complex breakpoint structure, and ISSP-based partial flash updates.