Infineon Technologies CY8C5567AXI-019

Overview

CY8C5567AXI-019 from Infineon Technologies (acquired Cypress Semiconductor) is a 32-bit programmable system-on-chip (PSoC® 5) integrating ARM Cortex-M3 CPU, configurable analog/digital peripherals, 256 KB flash, 64 KB SRAM, and USB 2.0 interface in a 100-pin TQFP package. It delivers up to 67 MHz operation, supports CapSense® capacitive sensing, delta-sigma ADC (20-bit, 192 ksps), dual SAR ADCs (12-bit, 700 ksps), and DFB-based FIR/IIR filtering - deployed in industrial HMI, medical sensor hubs, and programmable power control systems.

For engineers reviewing the CY8C5567AXI-019 datasheet, CY8C5567AXI-019 pinout, CY8C5567AXI-019 application, or CY8C5567AXI-019 equivalent, key selection criteria include its 100-pin TQFP footprint, 2.7–5.5 V supply range, -40°C to +85°C industrial temperature rating, integrated USB PHY with 24 MHz external oscillator requirement, and routing flexibility enabling any GPIO to connect to analog/digital resources.

Technical Context

The CY8C5567AXI-019 implements a hierarchical mixed-signal architecture centered on an ARM Cortex-M3 core with tightly coupled cache, PHUB-based DMA, and dual-bus interconnect (AHB/ASB). Its analog subsystem relies on a 1.024 V ±1% internal reference and supports simultaneous delta-sigma and SAR conversion paths routed via programmable analog muxes.

Digital configurability is delivered through 24 Universal Digital Blocks (UDBs), each combining PLD logic and state machines, enabling synthesis of UART, I²C, SPI, LIN, PRS, CRC, quadrature decoders, and custom logic - all dynamically routable to 60 GPIOs, 8 SIOs, and 2 USBIOs using the Digital System Interconnect (DSI).

Key Specifications

Pinout & Package

Package: 100-pin Thin Quad Flat Package (TQFP), 14 mm × 14 mm, 0.5 mm pitch, exposed thermal pad (EP), RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C5567AXI-019, CY8C5868AXI-LP097 trades analog precision for memory headroom and USB feature depth, while STM32F412ZGT6 shifts design burden to external analog components and software-based peripheral emulation - making CY8C5567AXI-019 optimal for mixed-signal consolidation with minimal BOM growth.

Availability

CY8C5567AXI-019 is available at Aetrix Electronics and suitable for industrial HMI panels, medical sensor hubs, programmable power controllers, and smart lighting nodes requiring stable component supply across extended product lifecycles.

Supply support for CY8C5567AXI-019 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 acquired Cypress Semiconductor in 2020 and now develops, manufactures, and supports the PSoC® portfolio - a leader in configurable mixed-signal SoCs for industrial, automotive, and IoT applications.

The CY8C55 family targets applications demanding analog-digital convergence - such as touch interfaces, sensor signal conditioning, and protocol-agnostic connectivity - with firmware-defined hardware flexibility instead of fixed-function ASICs.

FAQ

Does CY8C5567AXI-019 support USB device enumeration without external crystal?

No. Full-Speed USB 2.0 compliance requires a 24 MHz ±0.25% external crystal connected to XTAL_IN/XTAL_OUT. The internal IMO oscillator does not meet USB timing tolerance requirements. A 24 MHz crystal with appropriate load capacitors (per datasheet Section 11.9) is mandatory for USB functionality.

Can all 60 GPIOs simultaneously serve as analog inputs for the delta-sigma ADC?

No. While all GPIOs are routable to the analog subsystem, the delta-sigma ADC has a single input multiplexer supporting up to 24 channels. Concurrent sampling is limited to one channel at a time; sequential scanning across multiple GPIOs is supported via firmware-controlled channel switching and DMA-triggered conversions.

What is the maximum achievable resolution for PWM-generated DAC output using UDBs?

Using UDB-based PWM DACs, CY8C5567AXI-019 achieves up to 10-bit effective resolution at ≤48 kHz update rate. This is achieved by configuring UDBs to generate high-frequency PWM (e.g., 4.8 MHz) with 10-bit counter depth and low-pass filtering - verified in Cypress Application Note AN76314.

Is the 2-KB EEPROM accessible during hibernate mode with RAM retention?

Yes. The 2 KB EEPROM remains fully readable and writable in hibernate mode (300 nA) while preserving SRAM contents. Write operations require ~10 ms and temporarily exit hibernate; reads complete within microsecond latency without mode transition - confirmed in Section 5.4 of datasheet 001-66235 Rev. *D.