Infineon Technologies CY8C4248LQQ-BL583

Overview

CY8C4248LQQ-BL583 from Infineon is a PSoC™ 4 programmable system-on-chip MCU integrating an Arm® Cortex®-M0 CPU, AIROC™ Bluetooth® LE 4.2 radio subsystem (BLESS), 256 KB flash, 32 KB SRAM, and reconfigurable analog/digital peripherals. It operates at up to 24 MHz, supports capacitive sensing (CSD) with >5:1 SNR, and delivers –89 dBm RX sensitivity and +3 dBm TX output in a 7 mm × 7 mm 56-pin QFN package for wireless sensor node applications.

For engineers reviewing the CY8C4248LQQ-BL583 datasheet, CY8C4248LQQ-BL583 pinout, CY8C4248LQQ-BL583 application, or CY8C4248LQQ-BL583 equivalent, key selection criteria include BLE 4.2 compliance, Deep-Sleep current of 1.3 µA with WCO active, 12-bit 806 ksps SAR ADC with sequencer, programmable GPIO drive modes, and integrated LCD segment driver supporting operation in low-power modes.

Technical Context

This device implements a tightly coupled dual-subsystem architecture: the Arm® Cortex®-M0 core executes firmware while the dedicated BLESS (Bluetooth® Low Energy Subsystem) handles link-layer operations autonomously, enabling concurrent application and radio processing. The BLESS includes a 2.4-GHz RF transceiver with 50-Ω antenna interface, digital PHY, and hardware-accelerated AES encryption.

Analog resources include two opamps supporting comparator mode and ADC input buffering, plus a 12-bit SAR ADC with differential/single-ended inputs, channel sequencer, and signal averaging - all operable in Deep-Sleep mode. Digital flexibility is delivered via four TCPWM blocks, two reconfigurable SCBs (I²C/SPI/UART), and programmable interconnect routing.

Key Specifications

Pinout & Package

Package: 7 mm × 7 mm, 56-pin QFN (LQQ), RoHS-compliant, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with nRF52833 and CC2642R, CY8C4248LQQ-BL583 uniquely integrates reconfigurable analog (opamps, ADC, CSD) and digital (LCD, TCPWM) peripherals alongside BLE - reducing system-level component count and simplifying layout for compact, cost-sensitive HMI and sensor nodes.

Availability

CY8C4248LQQ-BL583 is available at Aetrix Electronics and suitable for wireless sensor nodes, smart home interfaces, BLE beacons, and industrial asset trackers requiring stable component supply, full lifecycle support, and verified production-grade firmware compatibility.

Supply support for CY8C4248LQQ-BL583 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 MCUs, and secure connectivity solutions, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.

CY8C4248LQQ-BL583 belongs to the PSoC™ 4 CY8C4xxx-BL product line, designed specifically for ultra-low-power, highly integrated Bluetooth® LE edge devices requiring mixed-signal programmability and rapid prototyping via PSoC™ Creator.

FAQ

Does CY8C4248LQQ-BL583 support Bluetooth® 5.0 or later?

No. CY8C4248LQQ-BL583 implements Bluetooth® 4.2 specifications only, including LE Secure Connections and Data Length Extension. It does not support Bluetooth® 5.0 features such as 2× data rate, 4× range extension, or Advertising Extensions. Firmware updates cannot add 5.0 capability due to hardware limitations in the BLESS subsystem.

Can the integrated opamps be used in unity-gain buffer configuration with rail-to-rail output?

Yes. Each opamp supports unity-gain buffer mode with rail-to-rail output swing (VDD to GND) when powered from the same supply as the I/O domain. Input common-mode range extends to VDD, and typical output impedance is <1 Ω at DC, enabling direct ADC input buffering without external passive networks.

What is the maximum achievable BLE advertising interval using hardware timers?

The BLESS subsystem supports advertising intervals from 20 ms to 10.24 seconds in hardware, with precision ±10 ppm using the internal IMO or external crystal. Intervals beyond 10.24 s require CPU intervention and are subject to software timing jitter; hardware-only intervals are guaranteed deterministic and low-power.

Is the 7 mm × 7 mm QFN package compatible with standard reflow profiles for lead-free assembly?

Yes. The LQQ package is qualified for IPC/JEDEC J-STD-020D moisture sensitivity level 3 and supports peak reflow temperatures up to 260°C for 30 seconds. Recommended profile follows IPC-7531 guidelines with ramp rates ≤3°C/s and time above liquidus (TAL) of 60–90 seconds.