Infineon Technologies CY8C5268LTI-LP030

Overview

CY8C5268LTI-LP030 from Infineon Technologies (formerly Cypress) 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 CapSense® support. It operates from 1.71–5.5 V across –40 to +85 °C, delivers up to 80 MHz performance with ultra-low-power modes (300 nA hibernate), and targets embedded control in industrial HMI, medical sensors, and battery-powered IoT endpoints.

For engineers reviewing the CY8C5268LTI-LP030 datasheet, CY8C5268LTI-LP030 pinout, CY8C5268LTI-LP030 application, or CY8C5268LTI-LP030 equivalent, key selection criteria include its 68-pin QFN package, USB 2.0 Full-Speed peripheral, 12-bit SAR ADC with CapSense®, and flexible UDB-based digital logic synthesis capability.

Technical Context

The CY8C5268LTI-LP030 implements a tightly integrated mixed-signal SoC architecture centered on an Arm Cortex-M3 core with 24-channel DMA and cache. Its digital subsystem relies on 24 Universal Digital Blocks (UDBs) that can be configured as UART, SPI, I²C, PWM, PRS, CRC, or custom logic - all routable to any GPIO via the Digital System Interconnect (DSI).

Analog functionality includes a 12-bit SAR ADC with internal 1.024 V ±1% reference, dual comparators, 8-bit DAC, and dedicated CapSense® hardware supporting up to 62 self- or mutual-capacitance sensors. Clocking supports multiple sources: IMO (3–74 MHz), PLL (up to 80 MHz), ILO (1/33/100 kHz), and 32.768-kHz watch crystal.

Key Specifications

Pinout & Package

Package: 68-pin QFN (10 mm × 10 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad. RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.

Compared with STM32F303K8T6 and MAX32660, CY8C5268LTI-LP030 uniquely combines hardware-accelerated CapSense®, UDB-based digital logic synthesis, and sub-µA hibernate - making it optimal for cost-sensitive, battery-powered HMI and sensor fusion designs requiring minimal external components.

Availability

CY8C5268LTI-LP030 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensors, smart home energy monitors, and automotive body control modules requiring stable component supply, long-term lifecycle support, and qualified automotive-grade variants.

Supply support for CY8C5268LTI-LP030 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 MCUs, and security solutions with strong industrial and automotive market presence.

CY8C5268LTI-LP030 belongs to the PSoC® 5LP family - designed specifically for highly integrated, low-power embedded control applications demanding both analog signal conditioning and customizable digital logic on a single die.

FAQ

Does CY8C5268LTI-LP030 support USB device enumeration without external crystal?

Yes. The device integrates a factory-trimmed internal oscillator (IMO) with ±2% accuracy at 3 MHz, enabling full USB 2.0 Full-Speed (12 Mbps) enumeration and data transfer using only the internal clock source. No external crystal is required for basic USB operation, though a 32.768-kHz watch crystal may be added for RTC accuracy.

What is the maximum number of CapSense® electrodes supported in self-capacitance mode?

CY8C5268LTI-LP030 supports up to 62 self-capacitance electrodes using its dedicated CapSense® CSD (Capacitive Sigma-Delta) block. Electrode count is limited by available GPIOs and scan time constraints - full 62-electrode scans complete in under 100 ms at default resolution settings.

Can the 24 Universal Digital Blocks (UDBs) implement a hardware UART with automatic baud rate detection?

Yes. PSoC Creator includes pre-verified UART components that utilize UDB resources to implement full-duplex UART with programmable baud rates, parity, and stop bits. While automatic baud rate detection is not built into the standard component, it can be implemented in UDB logic using timer-based edge interval measurement and state machine sequencing.

Is the 300-nA hibernate mode achievable with all 64 KB of RAM retained?

Yes. Hibernate mode retains full 64 KB SRAM content while drawing only 300 nA typical at 25 °C. RAM retention is maintained via the internal low-leakage retention rail; wakeup occurs within 1 µs from any enabled interrupt source including GPIO, RTC, or watchdog timeout.