Infineon Technologies CY8C5467LTI-LP003

Overview

CY8C5467LTI-LP003 from Infineon Technologies (formerly Cypress Semiconductor) is a 32-bit Arm® Cortex®-M3 programmable system-on-chip (PSoC® 5LP) integrating configurable analog/digital peripherals, 256 KB flash, 64 KB RAM, and USB 2.0 Full-Speed interface. It operates from 1.71–5.5 V across –40 to +85 °C, supports ultra-low-power modes (300 nA hibernate), and targets embedded control in industrial sensing and human-interface systems.

For engineers reviewing the CY8C5467LTI-LP003 datasheet, CY8C5467LTI-LP003 pinout, CY8C5467LTI-LP003 application, or CY8C5467LTI-LP003 equivalent, key selection criteria include its dual ADC architecture (delta-sigma + SAR), CapSense® support for up to 62 sensors, flexible UDB-based digital logic synthesis, and integrated USB PHY with internal oscillator compliance (TID#10840032).

Technical Context

The device implements a tightly coupled mixed-signal SoC architecture where the Arm Cortex-M3 CPU (up to 80 MHz) directly controls programmable analog blocks (PGA, TIA, delta-sigma/SAR ADCs) and 24 universal digital blocks (UDBs) capable of synthesizing UART, SPI, PWM, CRC, or custom state machines. All peripherals are routed via digital/analog interconnect to any of 62 GPIOs or 8 SIO pins.

Its clocking subsystem includes a 3–74 MHz IMO (2% accuracy at 3 MHz), PLL for 80 MHz core operation, 32.768 kHz RTC crystal input, and 12 programmable clock dividers - enabling independent timing domains for analog acquisition, USB frame sync, and low-power wake events.

Key Specifications

Pinout & Package

Package: 68-pin QFN (9 × 9 mm, 0.4 mm pitch), thermally enhanced with exposed pad for power dissipation and EMI reduction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable SoC applications.

Compared with CY8C5467LTI-LP003, CY8C5868LTI-LP039 provides headroom for firmware growth without changing PCB layout, while STM32F411RE shifts analog responsibility to external circuitry - making it preferable only when existing analog IP or higher CPU throughput outweighs SoC integration benefits.

Availability

CY8C5467LTI-LP003 is available at Aetrix Electronics and suitable for industrial sensor hubs, medical wearables, smart home control panels, and portable test instruments requiring stable component supply and long-term manufacturability.

Supply support for CY8C5467LTI-LP003 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 PSoC® 5LP family - including CY8C5467LTI-LP003 - was designed to unify analog, digital, and embedded software into a single configurable SoC platform for rapid prototyping and production of intelligent edge devices.

FAQ

Does CY8C5467LTI-LP003 support USB device enumeration without an external crystal?

Yes. The device integrates a USB 2.0 Full-Speed PHY with an internal 48 MHz oscillator certified to TID#10840032, enabling plug-and-play USB HID or CDC operation without external crystal or clock source. This reduces BOM cost and board space while maintaining USB specification compliance.

What is the maximum number of CapSense® electrodes supported on this device?

CY8C5467LTI-LP003 supports up to 62 self-capacitance or mutual-capacitance sensors using its dedicated CapSense® subsystem and IDACs. Electrode count is limited only by available GPIOs and scan time requirements - all pins except power/ground and dedicated USB/crystal pins are configurable for CapSense®.

Can the SAR and delta-sigma ADCs operate simultaneously?

Yes. The device contains two independent ADC subsystems: a 12-bit SAR ADC optimized for speed (up to 1 MSPS) and an 8–12-bit delta-sigma ADC optimized for resolution and noise rejection. Both can acquire samples concurrently using separate clock domains and DMA channels, enabling simultaneous fast-response and high-precision measurements.

Is there hardware support for cryptographic operations?

No. CY8C5467LTI-LP003 does not include dedicated cryptographic accelerators (e.g., AES engine or TRNG). Security features are limited to flash protection bits, read-out protection, and secure bootloader execution - encryption must be implemented in firmware using CPU resources or external co-processors.