Infineon Technologies CY8C5467AXI-LP108

Overview

CY8C5467AXI-LP108 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 programmable system-on-chip (PSoC® 5LP) with up to 80 MHz operation, 256 KB flash, 64 KB RAM, and configurable analog/digital peripherals. It integrates USB 2.0 Full-Speed interface, dual ADCs (delta-sigma + SAR), two DACs, four comparators, two opamps, and CapSense® support for up to 62 sensors - deployed in industrial HMI, medical sensor hubs, and low-power IoT edge nodes.

For engineers reviewing the CY8C5467AXI-LP108 datasheet, CY8C5467AXI-LP108 pinout, CY8C5467AXI-LP108 application, or CY8C5467AXI-LP108 equivalent, key selection criteria include its 1.71–5.5 V wide supply range, 300-nA hibernate mode with RAM retention, 24-channel DMA, flexible UDB-based peripheral synthesis, and routing of any analog/digital function to any GPIO.

Technical Context

The CY8C5467AXI-LP108 implements a tightly integrated mixed-signal SoC architecture centered on an Arm Cortex-M3 core with cache and debug trace support. Its digital subsystem uses 24 Universal Digital Blocks (UDBs) to synthesize timers, UARTs, SPI, I2S, CRC, PRS, and gate-level logic - all routed via Digital System Interconnect (DSI) to any I/O.

Analog functionality is delivered through dedicated blocks: a configurable 8–12-bit delta-sigma ADC, 12-bit SAR ADC, two 8-bit DACs, four comparators, two rail-to-rail opamps, and two programmable SC/CT blocks supporting PGA, TIA, mixer, and sample-and-hold topologies - all referenced to a 1.024 V ±1% internal voltage reference.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303VCT6 and MAX32660, CY8C5467AXI-LP108 uniquely delivers full analog subsystem programmability, USB PHY integration, and CapSense® hardware acceleration - reducing component count and enabling rapid iteration of mixed-signal features without hardware respins.

Availability

CY8C5467AXI-LP108 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensors, and smart building controllers requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.

Supply support for CY8C5467AXI-LP108 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 secure connectivity solutions.

CY8C5467AXI-LP108 belongs to the PSoC® 5LP family - designed specifically for embedded systems demanding high analog integration, ultra-low power operation, and rapid hardware-software co-design using graphical schematic entry.

FAQ

Does CY8C5467AXI-LP108 support USB device enumeration without an external crystal?

Yes. The device integrates a USB 2.0 Full-Speed PHY with an internal oscillator certified to meet USB specification timing requirements (TID#10840032). No external 48-MHz crystal is required for USB device operation, reducing BOM cost and board space.

What is the maximum number of CapSense® sensors supported, and how is noise immunity achieved?

CY8C5467AXI-LP108 supports up to 62 CapSense® sensors using its dedicated CSD block and IDACs. Noise immunity is achieved through spread-spectrum modulation, shield electrode support, automatic baseline tracking, and hardware-accelerated correlation filtering - delivering >100:1 SNR in 50/60 Hz EMI environments.

Can the SAR and delta-sigma ADCs operate simultaneously, and what are their respective resolution/speed trade-offs?

Yes. Both ADCs operate independently: the 12-bit SAR ADC achieves up to 1 MSPS for fast transient capture, while the 8–12-bit delta-sigma ADC provides 20-bit effective resolution at 125 SPS for high-precision DC measurements. Their separate clock domains and input muxes allow concurrent sampling of different signal types.

Is the 24-channel DMA controller capable of servicing both analog and digital peripherals without CPU intervention?

Yes. The PHUB-based DMA controller supports concurrent transfers between flash/SRAM, ADC result registers, DAC data buffers, TCPWM FIFOs, and USB endpoint memory. Each channel can be triggered by any peripheral interrupt source, enabling fully autonomous sensor-to-USB or sensor-to-flash data pipelines.