Infineon Technologies CY8C5468LTI-LP026

Overview

CY8C5468LTI-LP026 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 programmable system-on-chip (PSoC® 5LP) with up to 256 KB flash, 64 KB RAM, and configurable analog/digital peripherals. It operates from 1.71–5.5 V across –40 to +85 °C, supports USB 2.0 Full-Speed (12 Mbps), and delivers ultra-low-power operation down to 300 nA in hibernate mode with RAM retention. It targets embedded control systems requiring mixed-signal integration, such as industrial sensor nodes and portable medical devices.

For engineers reviewing the CY8C5468LTI-LP026 datasheet, CY8C5468LTI-LP026 pinout, CY8C5468LTI-LP026 application, or CY8C5468LTI-LP026 equivalent, key selection criteria include its 68-pin QFN package, dual ADC architecture (delta-sigma + SAR), CapSense® support for up to 62 sensors, and programmable UDB-based digital logic synthesis capability.

Technical Context

The CY8C5468LTI-LP026 implements a tightly integrated SoC architecture where the Arm Cortex-M3 CPU core (up to 80 MHz) coordinates configurable analog blocks (two opamps, four comparators, two DACs, programmable SC/CT blocks), dual ADC subsystems (8–12-bit delta-sigma and 12-bit SAR), and 24 universal digital blocks (UDBs) for custom logic synthesis. Its routing fabric enables any peripheral function-digital or analog-to be assigned to any GPIO.

Power management includes a boost regulator (0.5–5 V output), six independent power domains, and three low-power modes: active (3.1 mA @ 6 MHz), sleep (2 µA), and hibernate (300 nA with RAM retention). Clocking flexibility is provided by multiple oscillators (IMO, ILO, ECO, WCO) and an internal PLL supporting precise timing across mixed-signal applications.

Key Specifications

Pinout & Package

This device is packaged in a 68-pin QFN (7 mm × 7 mm, 0.4 mm pitch) with exposed thermal pad. Pin assignments are defined per the CY8C54LP family datasheet (Document No. 001-84934 Rev. *N), with dedicated power, ground, analog reference, USBIO, and configurable I/O banks.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C5468LTI-LP026, the CY8C5868LTI-LP039 offers expanded memory and USB capabilities in identical packaging, while the STM32F412ZGT6 trades analog/digital configurability for higher CPU performance and ecosystem breadth - making the former ideal for memory-constrained PSoC migrations and the latter better suited for compute-intensive, externally conditioned systems.

Availability

CY8C5468LTI-LP026 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart home touch panels, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade alternatives.

Supply support for CY8C5468LTI-LP026 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 microcontrollers, and secure connectivity solutions.

This part belongs to the PSoC® 5LP family - designed specifically for highly integrated, low-power embedded control applications where analog signal conditioning, digital logic synthesis, and USB connectivity must coexist on a single die without external support components.

FAQ

Does CY8C5468LTI-LP026 support USB device enumeration without external crystal?

Yes. The device integrates an internal oscillator (IMO) with ±2% accuracy at 3 MHz, which is sufficient for USB Full-Speed (12 Mbps) enumeration when used with the internal PLL. External crystal is optional and only required for applications demanding tighter USB timing tolerance or concurrent high-accuracy RTC operation.

Can CapSense® operate reliably in noisy industrial environments?

Yes. CY8C5468LTI-LP026 implements shielded sensor routing, spread-spectrum modulation, and adaptive thresholding in hardware. These features suppress EMI from motors, relays, or switching power supplies, enabling stable touch detection even in factory-floor conditions with >1 kV ESD pulses.

What debug interfaces are supported, and do they require external hardware?

The device supports JTAG (4-wire), SWD (2-wire), SWV, and TracePort interfaces. Debugging requires a standard CMSIS-DAP or J-Link probe; no proprietary hardware is needed. The MiniProg3 programmer/debugger (CY8CKIT-001) is fully compatible and provides full trace and breakpoint capability.

Is the 300 nA hibernate current achievable with all peripherals disabled?

Yes. The 300 nA specification assumes only the hibernate wakeup circuitry and RAM retention enabled, with all clocks, regulators, and analog/digital blocks powered down. This value is measured per JEDEC JESD78 and confirmed in the device's electrical specifications table (Section 11.2 of datasheet 001-84934).