Infineon Technologies CY8C6148LQI-S2F02

Overview

CY8C6148LQI-S2F02 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 at 150 MHz (M4) and 100 MHz (M0+), supports 1.7–3.6 V supply, and delivers 40 µA/MHz active current at 1.1 V core voltage. Designed for secure, ultra-low-power IoT edge nodes requiring real-time sensor fusion and touch interface.

For engineers reviewing the CY8C6148LQI-S2F02 datasheet, CY8C6148LQI-S2F02 pinout, CY8C6148LQI-S2F02 application, or CY8C6148LQI-S2F02 equivalent, key selection criteria include dual-CPU power efficiency trade-offs, on-chip DC-DC quiescent current (<1 µA), Deep Sleep retention (7 µA @ 64 KB SRAM), SMIF throughput (up to 640 Mbps), and hardware TRNG + eFuse-based secure boot.

Technical Context

The device implements a tightly coupled dual-CPU subsystem where the Cortex-M4F handles application processing and the Cortex-M0+ is reserved exclusively for system-level functions including security services, power management, and peripheral arbitration - not user code execution. Memory coherency is maintained via three DMA controllers and shared SRAM blocks with independent retention control.

Clock architecture integrates two PLLs, one FLL, and programmable integer/fractional dividers to feed CPU cores, peripherals, and SMIF independently. The on-chip DC-DC buck converter enables stable 1.1 V or 0.9 V core operation with fine-grained power mode transitions across six states, including Hibernate with 64-byte backup domain retention and RTC.

Key Specifications

Pinout & Package

CY8C6148LQI-S2F02 is housed in a 124-ball BGA package (body size 10 mm × 10 mm, pitch 0.8 mm), RoHS-compliant and moisture sensitivity level 3 (MSL3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32WB55RGV and nRF5340 DK, CY8C6148LQI-S2F02 uniquely combines ultra-low-power Deep Sleep with hardware-enforced secure boot, SMIF XIP for deterministic firmware execution, and CAPSENSE™ CSD for production-ready touch - making it optimal for certified, battery-constrained IoT endpoints requiring local intelligence and tamper resistance.

Availability

CY8C6148LQI-S2F02 is available at Aetrix Electronics and suitable for smart home hubs, industrial sensor nodes, medical wearables, and touch-controlled HMIs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for CY8C6148LQI-S2F02 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 management, automotive MCUs, and secure embedded solutions, with global manufacturing and quality certifications including ISO/TS 16949 and ISO 9001.

This device belongs to the PSoC™ 61 MCU product line - engineered specifically for secure, ultra-low-power IoT endpoints that demand local AI preprocessing, robust touch interfaces, and end-to-end firmware integrity from boot to runtime.

FAQ

What is the function of the Cortex-M0+ core in CY8C6148LQI-S2F02?

The Cortex-M0+ core is reserved exclusively for system-level functions including secure boot validation, power mode orchestration, peripheral arbitration, and cryptographic service offloading. It cannot execute user application code - this architectural separation ensures deterministic security enforcement and prevents privilege escalation from the application core.

Does CY8C6148LQI-S2F02 support Execute-In-Place (XIP) from external flash?

Yes - its Serial Memory Interface (SMIF) supports XIP from quad/octal SPI flash with hardware acceleration: 4 KB dedicated cache, on-the-fly AES-128 decryption, and up to 640 Mbps throughput. This eliminates external RAM requirements for code execution and reduces boot time by enabling direct instruction fetch from flash.

How does the CAPSENSE™ subsystem differ from generic capacitive touch IP?

CY8C6148LQI-S2F02 implements CAPSENSE™ sigma-delta (CSD) with hardware SmartSense™ auto-tuning, delivering >100 dB SNR, liquid tolerance, and simultaneous self/mutual sensing. Unlike software-based solutions, it uses dedicated analog front-end and digital filters to maintain button/slider accuracy across temperature/humidity shifts without host CPU intervention.

What power modes are available and how is Deep Sleep current achieved?

Six power modes include Active, Sleep, Deep Sleep, Hibernate, and two variants of System OFF. Deep Sleep draws 7 µA while retaining 64 KB SRAM and RTC - achieved via on-chip DC-DC buck converter (<1 µA quiescent), selective clock gating, and M0+ handling wake-event filtering via Smart I/O without waking M4.