Infineon Technologies CY8C6148AZI-S2F44

Overview

CY8C6148AZI-S2F44 from Infineon is a dual-core Arm® Cortex®-M4F/M0+ PSOC™ 61 MCU with 2048 KB flash, 1024 KB SRAM, and integrated CAPSENSE™, QSPI/XIP, USB FS, and hardware cryptography. It operates from 1.7–3.6 V, achieves 7 µA Deep Sleep current with 64 KB SRAM retention, and targets secure, ultra-low-power IoT edge nodes requiring real-time sensor fusion and wireless coexistence.

For engineers reviewing the CY8C6148AZI-S2F44 datasheet, CY8C6148AZI-S2F44 pinout, CY8C6148AZI-S2F44 application, or CY8C6148AZI-S2F44 equivalent, key selection criteria include dual-CPU power efficiency at 0.9 V/1.1 V core voltage, on-chip DC-DC converter (<1 µA quiescent), 32 TCPWMs with kill-signal triggering, and SMIF interface supporting 640 Mbps octal SPI with on-the-fly encryption.

Technical Context

The device implements a tightly coupled dual-CPU subsystem where the Cortex-M4F handles application tasks (150 MHz, FPU, MPU) while the Cortex-M0+ (100 MHz) is reserved exclusively for system-level functions including security boot, power management, and interrupt arbitration-no application firmware runs on M0+. Both cores share memory-mapped peripherals but operate in isolated protection contexts.

Its programmable analog-digital fabric includes a 12-bit 2-Msps SAR ADC with 16-channel sequencer and averaging, two Deep Sleep-capable comparators, and CAPSENSE™ CSD with SmartSense™ auto-tuning. Clocking combines IMO (8 MHz ±2%), ILO (32 kHz), dual PLLs, FLL, and fractional dividers to support dynamic frequency scaling across six power modes.

Key Specifications

Pinout & Package

CY8C6148AZI-S2F44 is housed in a 44-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are validated per Infineon's official pinout diagram (Document 002-30714 Rev. *F, Page 32).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core secure MCU applications.

Compared with CY8C6148AZI-S2F44, CY8C6247FDI-D52 trades USB and larger memory for integrated BLE-reducing BOM but limiting wired update paths-while STM32WB55RGV offers lower cost and mature tooling but lacks Infineon's CAPSENSE™ and SMIF encryption capabilities critical for secure, sensor-rich edge nodes.

Availability

CY8C6148AZI-S2F44 is available at Aetrix Electronics and suitable for wearable health monitors, smart home sensor hubs, industrial predictive maintenance nodes, and secure access control terminals requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for CY8C6148AZI-S2F44 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 German semiconductor leader specializing in power systems, automotive MCUs, and secure embedded solutions, with global manufacturing and R&D infrastructure.

The PSOC™ 61 MCU product line delivers ultra-low-power, dual-core microcontrollers purpose-built for secure, sensor-intensive IoT endpoints-emphasizing energy efficiency, hardware-rooted security, and programmable analog-digital integration.

FAQ

What is the maximum operating frequency of the Cortex-M4F core in CY8C6148AZI-S2F44?

The Cortex-M4F core operates at up to 150 MHz under 1.1 V core voltage and 125 MHz at 0.9 V, with single-cycle multiply, IEEE 754-compliant floating-point unit, and memory protection unit enabled. Frequency scaling is managed dynamically via the clock system's PLL and FLL, and verified per Infineon's electrical specifications (Section 6.2.2, Rev. *F).

Does CY8C6148AZI-S2F44 support Execute-In-Place (XIP) from external flash?

Yes-it features a dedicated Serial Memory Interface (SMIF) supporting XIP from quad/octal SPI flash with 4 KB on-die cache, on-the-fly AES-128 encryption/decryption, and throughput up to 640 Mbps. This enables secure, low-latency code execution directly from external memory without loading into internal RAM.

How many protection contexts does the security architecture support?

The device implements up to eight hardware-enforced protection contexts, each defining isolated memory regions, peripheral access rights, and privilege levels for both CPUs. These contexts are configured at boot via the SFlash and enforced by the memory protection units (MPUs) on both M4F and M0+ cores.

Is the Cortex-M0+ core available for user application code?

No-the Cortex-M0+ core in CY8C6148AZI-S2F44 is reserved exclusively for system-level functions including secure boot, power mode orchestration, interrupt routing, and cryptographic service dispatch. Application firmware must run solely on the Cortex-M4F core, as documented in the PSOC™ 61 MCU Features Datasheet (Rev. *F, Section 1).