Infineon Technologies CY8C4146AZI-S463

Overview

CY8C4146AZI-S463 from Infineon Technologies (acquired Cypress Semiconductor) is a PSoC 4100S Plus programmable system-on-chip featuring a 48-MHz Arm Cortex-M0+ CPU, 128 KB flash, 16 KB SRAM, integrated CapSense® capacitive sensing, CAN 2.0B interface, and programmable analog/digital blocks. It operates from 1.71–5.5 V and supports Deep Sleep mode with 2.5-μA system current, targeting embedded human-interface and industrial control applications requiring mixed-signal reconfigurability.

For engineers reviewing the CY8C4146AZI-S463 datasheet, CY8C4146AZI-S463 pinout, CY8C4146AZI-S463 application, or CY8C4146AZI-S463 equivalent, key selection criteria include its 54-GPIO count, on-die CAN transceiver support, CapSense sigma-delta architecture with >5:1 SNR, TRNG for cryptographic key generation, and compatibility with PSoC Creator IDE for hardware/firmware co-design.

Technical Context

The device integrates a single-layer AHB-Lite interconnect linking CPU, memory, and peripherals including five reconfigurable Serial Communication Blocks (SCBs) supporting I²C/SPI/UART, eight 16-bit TCPWMs with quadrature decode and comparator-triggered kill signals, and a dedicated CAN 2.0B block with Time-Triggered CAN (TTCAN) capability. Clocking relies on multiple sources: 4–33 MHz ECO, 32-kHz WCO, ±2% IMO, and ILO - all managed by glitch-free dividers (12 integer + 6 fractional).

Analog subsystem includes two opamps operable in Deep Sleep, a 12-bit 1-Msps SAR ADC with channel sequencer and signal averaging, dual low-power comparators, two IDACs, and a capacitance-sensing block enabling 10-bit sigma-delta conversion. Digital logic uses Smart I/O and programmable logic blocks for Boolean operations directly on GPIO paths without CPU intervention.

Key Specifications

Pinout & Package

Package: 44-pin TQFP (0.8 mm pitch), RoHS-compliant, lead-free, body size 10 × 10 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C4146AZI-S463, CY8C4147AZI-S473 offers identical functionality in a denser package, while STM32G071KB delivers lower BOM cost only when CapSense and CAN are omitted - making the PSoC 4100S Plus uniquely suited for touch-and-communicate edge nodes.

Availability

CY8C4146AZI-S463 is available at Aetrix Electronics and suitable for industrial HMI panels, automotive body control modules, and smart home sensor hubs requiring stable component supply, long-term lifecycle assurance, and qualified reflow profiles for TQFP packaging.

Supply support for CY8C4146AZI-S463 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 programmable embedded systems combining analog, digital, and connectivity IP on a single chip.

The PSoC 4100S Plus product line targets cost-sensitive, low-power human-interface and industrial control applications, emphasizing CapSense performance, CAN integration, and security features for edge devices deployed in uncontrolled environments.

FAQ

What development tools are required to program and debug CY8C4146AZI-S463?

PSoC Creator IDE (free, Windows-only) is the official tool for schematic-based hardware design, component configuration, and firmware build. It supports drag-and-drop peripheral placement, automatic routing, and API generation. Debugging uses standard Arm Serial Wire Debug (SWD) via MiniProg3 or KitProg2 programmers - no JTAG pod or emulator required.

Does CY8C4146AZI-S463 support functional safety standards like ISO 26262 or IEC 61508?

No. CY8C4146AZI-S463 is not ASIL- or SIL-certified. While it includes features such as lockable debug interfaces, flash protection, and CRC-protected configuration registers, it lacks documented FMEDA reports, safety manuals, or hardware fault coverage metrics required for automotive or industrial safety certification.

Can the internal opamps be used for precision sensor signal conditioning?

Yes - each opamp supports rail-to-rail input/output, selectable gain (1× to 8×), and can operate in Deep Sleep mode. Input offset voltage is typically ±2 mV, and GBW is 12 MHz. For sub-mV accuracy, external trimming or calibration via SAR ADC feedback is required, as no factory-trimmed precision mode is specified.

Is CAN bus termination integrated into CY8C4146AZI-S463?

No. The device contains a CAN protocol controller (CAN 2.0B compliant) but no physical layer transceiver. External CAN transceivers (e.g., TJA1042, SN65HVD230) must be used, with 120-Ω termination resistors placed at bus ends - not on the PSoC side. The CAN TX/RX pins are CMOS-level digital I/O requiring level translation.