Infineon Technologies CY8C4247LQI-BL463T

Overview

CY8C4247LQI-BL463T from Infineon is a 32-bit Arm® Cortex®-M0 microcontroller integrating AIROC™ Bluetooth® LE 4.2 radio, 48 MHz CPU, 256 KB flash, 32 KB SRAM, and programmable analog/digital blocks. It delivers BLE connectivity with –89 dBm RX sensitivity, 15.6 mA TX current at 0 dBm, and supports capacitive sensing, LCD drive, and TCPWM for motor control in compact IoT edge nodes.

For engineers reviewing the CY8C4247LQI-BL463T datasheet, CY8C4247LQI-BL463T pinout, CY8C4247LQI-BL463T application, or CY8C4247LQI-BL463T equivalent, key selection criteria include integrated BLE subsystem performance, Deep Sleep power (1.5 µA), SAR ADC resolution (12-bit, 1-Msps), GPIO flexibility (36 pins, CAPSENSE™/LCD/analog/digital), and QFN-56 package compatibility.

Technical Context

The device implements a dual-domain architecture: an Arm® Cortex®-M0 core with DMA and flash accelerator coexists with a dedicated Bluetooth® LE subsystem (BLESS) containing digital PHY, link-layer engine, and RF transceiver. Clocking includes IMO (8–48 MHz), WCO (32.768 kHz), and ECO support for precise timing.

Analog resources comprise four opamps with Comparator mode and ADC input buffering, a 12-bit SAR ADC with channel sequencer and averaging, two IDACs, and two low-power comparators-all operable in Deep Sleep. Digital logic is reconfigurable via four UDBs with macrocell-based datapaths and Verilog support.

Key Specifications

Pinout & Package

Package: 7 mm × 7 mm, 56-pin QFN (LQFP-style exposed pad, RoHS-compliant, moisture-sensitive level 3).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar BLE MCU applications.

Compared with nRF52833 and CC2642R, CY8C4247LQI-BL463T uniquely combines BLE 4.2, Arm® Cortex®-M0 efficiency, and field-reconfigurable analog/digital blocks-enabling single-chip sensor fusion, touch UI, and LCD display without external components.

Availability

CY8C4247LQI-BL463T is available at Aetrix Electronics and suitable for smart home sensor nodes, wireless medical patches, industrial asset tags, and Bluetooth beacons requiring stable component supply and long-term lifecycle assurance.

Supply support for CY8C4247LQI-BL463T 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 manufacturer specializing in power management, automotive ICs, and secure microcontrollers, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

CY8C42xx-BL belongs to Infineon's PSoC™ 4 family-designed specifically for highly integrated, low-power, mixed-signal IoT endpoints requiring both wireless connectivity and configurable analog/digital logic in a single chip.

FAQ

What development tools are officially supported for CY8C4247LQI-BL463T?

Infineon officially supports PSoC™ Creator IDE (Windows-only, free download) for schematic-based hardware configuration and firmware development. The device is also compatible with Arm®-based toolchains including Keil MDK, GCC ARM Embedded, and IAR Embedded Workbench after initial project setup. Debugging requires MiniProg3 or KitProg2/3 programmers.

Does CY8C4247LQI-BL463T support Bluetooth® LE 5.0 or later?

No-CY8C4247LQI-BL463T implements Bluetooth® LE 4.2 only, as confirmed in the official datasheet (Rev. *B). It does not support LE 5.0 features such as Long Range (Coded PHY), Higher Throughput (2 Mbps PHY), or Advertising Extensions. For LE 5.0, consider Infineon's later-generation AIROC™ modules like CYW20829.

Can the on-chip opamps be used for driving external loads like piezoelectric elements?

Yes-the four opamps support high-drive external mode with up to ±25 mA output current and rail-to-rail swing, validated for driving piezo buzzers and small ultrasonic transducers. Each opamp includes programmable gain, bandwidth, and shutdown control, and remains functional in Deep Sleep mode for wake-on-event actuation.

Is the 7 mm × 7 mm QFN package lead-free and RoHS-compliant?

Yes-CY8C4247LQI-BL463T uses a lead-free, halogen-free, RoHS-compliant 56-pin QFN package (package code LQI), qualified to JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3), and rated for industrial temperature range (–40 °C to +85 °C).