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Infineon Technologies CY8C4248LQI-BL483
- Part No.:
- CY8C4248LQI-BL483
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 56-UFQFN Exposed Pad
- Datasheet:
-
CY8C4248LQI-BL483.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 56QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,334
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Product details
Overview
CY8C4248LQI-BL483 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 supports capacitive sensing, LCD drive, and dual SCBs for I²C/SPI/UART in a 7 mm × 7 mm 56-pin QFN package - deployed in wireless human interface devices, BLE sensor nodes, and smart home edge controllers.
For engineers reviewing the CY8C4248LQI-BL483 datasheet, CY8C4248LQI-BL483 pinout, CY8C4248LQI-BL483 application, or CY8C4248LQI-BL483 equivalent, key selection criteria include integrated BLE PHY performance (–89 dBm RX sensitivity, +3 dBm TX), Deep Sleep current (1.5 µA with WCO), SAR ADC resolution (12-bit, 1-Msps), GPIO count (up to 36), and PSoC™ Creator toolchain compatibility.
Technical Context
This MCU implements a tightly coupled BLE subsystem (BLESS) with dedicated digital PHY and link-layer engine supporting concurrent master/slave roles. Its RF transceiver delivers –18 dBm to +3 dBm output power and integrates RSSI measurement with 1-dB resolution.
The analog subsystem includes four opamps with Comparator mode and ADC input buffering, plus a 12-bit SAR ADC with channel sequencer and signal averaging. Digital flexibility comes from four UDBs (each with eight macrocells) and two reconfigurable SCBs - enabling hardware-defined state machines and runtime peripheral remapping without firmware reload.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0, 48 MHz with single-cycle multiply and DMA - enables real-time sensor fusion and BLE stack execution within tight timing budgets. |
| Memory | 256 KB flash (with read accelerator), 32 KB SRAM - sufficient for BLE host stack, custom profiles, and application firmware with over-the-air update capability. |
| BLE Performance | RX sensitivity: –89 dBm; TX output: –18 dBm to +3 dBm - ensures robust 10–30 m indoor link range with standard PCB antenna. |
| ADC | 12-bit SAR, 1-Msps, differential/single-ended, channel sequencer with averaging - supports high-accuracy temperature, battery, or environmental sensing. |
| Power Modes | Deep Sleep: 1.5 µA (WCO active); Hibernate: 150 nA (RAM retention) - extends coin-cell battery life to multi-year operation in periodic-sensing applications. |
| GPIO | Up to 36 programmable pins; any pin supports CAPSENSE™, LCD, analog, or digital functions - eliminates external routing logic for mixed-signal UI designs. |
| Package | 7 mm × 7 mm, 56-pin QFN (LQI) - surface-mount compatible with automated assembly and thermal performance suitable for compact IoT enclosures. |
Pinout & Package
Package: 7 mm × 7 mm, 56-pin QFN (LQI), exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 1.71–5.5 V input; powers CPU, BLE subsystem, and all digital/analog blocks - supports direct connection to single-cell Li-ion or 3.3 V rail. |
| GND | Ground reference | Common return for analog/digital/RF domains; requires low-impedance plane separation per RF layout guidelines. |
| P0[0]–P0[7] | Programmable GPIO | Support CAPSENSE™, analog input/output, UART/SPI/I²C, or PWM - configurable per pin via PSoC™ Creator without hardware change. |
| P1[0]–P1[7] | Programmable GPIO | Includes two overvoltage-tolerant (OVT) pins - safe for interfacing with 5 V logic or unregulated sensors in industrial environments. |
| XTAL_IN / XTAL_OUT | BLE RF crystal interface | Connects to 24 MHz fundamental-mode crystal for BLE radio timing - requires matching network per AN91445 layout rules. |
| WCO_IN / WCO_OUT | Watch crystal oscillator | 32.768 kHz crystal input for Deep Sleep timing - enables precise wake-up intervals while consuming only 1.5 µA. |
| SWDCK / SWDIO | Debug interface | Two-pin Serial Wire Debug port - allows programming and real-time debugging using MiniProg3 or KitProg2 without JTAG header. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated BLE Subsystem (BLESS) | Dedicated hardware link-layer engine and digital PHY eliminate MCU overhead for BLE packet handling - frees >30% CPU bandwidth for application logic. |
| Capacitive Sensing (CSD) | Capacitive sigma-delta engine with >5:1 SNR and liquid-tolerance - enables reliable touch buttons/knobs on wet or coated surfaces without shield layers. |
| SmartSense Auto-Tuning | Hardware-accelerated algorithm dynamically adjusts sensor parameters during operation - removes manual calibration and compensates for environmental drift. |
| Reconfigurable Analog Blocks | Four opamps support comparator mode, ADC buffering, and high-drive external outputs - allows single-chip implementation of signal conditioning and threshold detection. |
| UDB-Based Digital Logic | Four universal digital blocks enable Verilog-defined peripherals (e.g., custom encoders, protocol engines) - avoids FPGA co-processor in cost-sensitive edge devices. |
Applications
| Wireless Remote Control | BLE Sensor Node |
|---|---|
Use Scenario: Battery-powered TV remote with touchpad, gesture recognition, and voice command preprocessing. IC Role / Device Role / Timing Role: Central MCU executing BLE HID profile, CAPSENSE™ processing, and audio feature extraction before BLE transmission. Use Value: Single-chip integration reduces BOM count by 4+ components; Deep Sleep current (1.5 µA) enables 2-year battery life on CR2032. | Use Scenario: Industrial temperature/humidity node transmitting data every 5 seconds to gateway via BLE. IC Role / Device Role / Timing Role: Sensor aggregator with 12-bit SAR ADC sampling thermistor and capacitive humidity sensor, then BLE advertising. Use Value: On-chip opamp buffering and signal averaging improve ADC accuracy to ±0.5°C; RSSI-based proximity filtering reduces false triggers. |
| Smart Home Keypad | Wearable Health Monitor |
Use Scenario: Tamper-resistant door lock keypad with backlight, touch feedback, and encrypted BLE pairing. IC Role / Device Role / Timing Role: Secure controller managing CAPSENSE™ authentication, segment LCD drive, and AES-CCM BLE encryption. Use Value: Integrated LCD driver operates in Deep Sleep mode - enables always-on status display at <20 µA total system current. | Use Scenario: Wrist-worn pulse oximeter with SpO₂ LED drivers, photodiode amplification, and BLE streaming. IC Role / Device Role / Timing Role: Analog front-end controller with IDACs for LED current control, opamp-based TIA, and synchronized ADC sampling. Use Value: Two programmable IDACs deliver precise, stable LED drive currents (±1%); opamp TIA achieves >100 dB dynamic range for weak photodiode signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Bluetooth® LE microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Nordic nRF52840-QIAA | ARM Cortex-M4F core, 1 MB flash, no integrated analog peripherals (ADC/opamp), higher TX power (+8 dBm) | Requires external analog signal chain; better suited for high-throughput BLE mesh or USB-CDC gateway applications | Select when prioritizing raw compute throughput and BLE mesh scalability over analog integration and ultra-low-power sensing. |
| Texas Instruments CC2642R1F | ARM Cortex-M4F, 352 KB flash, integrated RF front-end but no programmable analog blocks or CAPSENSE™ | Lacks on-chip opamp/ADC flexibility; optimized for long-range BLE with integrated balun and PA | Choose for extended-range (>100 m) beacon or asset tracker where RF performance outweighs mixed-signal programmability. |
Compared with nRF52840-QIAA and CC2642R1F, CY8C4248LQI-BL483 uniquely combines BLE 4.2, reconfigurable analog/digital fabric, and sub-µA Deep Sleep - making it optimal for cost-sensitive, battery-constrained edge devices requiring embedded signal conditioning and capacitive UI.
Availability
CY8C4248LQI-BL483 is available at Aetrix Electronics and suitable for wireless remote controls, BLE sensor nodes, smart home keypads, and wearable health monitors requiring stable component supply across production volumes from prototype to mass manufacturing.
Supply support for CY8C4248LQI-BL483 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and secure microcontrollers, with global R&D and manufacturing infrastructure.
CY8C4248LQI-BL483 belongs to the PSoC™ 4 CY8C4xxx-BL family - designed specifically for ultra-low-power, mixed-signal Bluetooth® LE edge devices requiring field-programmable analog and digital logic without external components.
FAQ
Does CY8C4248LQI-BL483 support Bluetooth® 5.0 or later?
No. This device implements Bluetooth® Low Energy 4.2 only, including LE Data Length Extension and Secure Connections. It does not support Bluetooth® 5.0 features such as 2 Mbps PHY, Long Range (Coded PHY), or Advertising Extensions. Firmware updates cannot enable these capabilities due to hardware-level PHY limitations.
Can the on-chip opamps drive external loads directly?
Yes - each of the four opamps supports high-drive external mode with up to 25 mA output current and rail-to-rail output swing. They can directly drive LEDs, small solenoids, or capacitive touch electrodes without external buffers, provided supply voltage and thermal limits are observed per datasheet Section 5.3.1.
Is PSoC™ Creator still supported for CY8C4248LQI-BL483 development?
Yes. Infineon continues to provide full PSoC™ Creator 4.4 support, including component libraries, code generation, and debug tools for this device. While ModusToolbox™ is now Infineon's strategic IDE, PSoC™ Creator remains actively maintained and qualified for production use with CY8C42xx-BL devices through 2027.
What is the maximum operating temperature for continuous BLE transmission?
The device is rated for continuous operation up to +85 °C ambient temperature under full BLE TX load (0 dBm, 15.6 mA). At +105 °C, derating applies: maximum sustained TX duty cycle drops to 10% to maintain junction temperature ≤125 °C, as specified in Absolute Maximum Ratings Table 5.1.
CY8C4248LQI-BL483 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 56-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4xx8 BLE
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Bluetooth, Brown-out Detect/Reset, Cap Sense, DMA LCD, LVD, POR, PWM, SmartCard, SmartSense, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b SAR; D/A 2xIDAC
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4248LQI-BL483 FAQ
1.How can I place an order for CY8C4248LQI-BL483 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4248LQI-BL483 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY8C4248LQI-BL483 reliable?
The price and inventory of CY8C4248LQI-BL483 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4248LQI-BL483 is usually 5 days.
3.What payment methods are accepted for CY8C4248LQI-BL483?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4248LQI-BL483 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4248LQI-BL483?
CY8C4248LQI-BL483 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4248LQI-BL483 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY8C4248LQI-BL483?
For technical support, including CY8C4248LQI-BL483 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4248LQI-BL483 requirements.
6.How does Aetrix verify that CY8C4248LQI-BL483 is sourced from the original manufacturer or authorized distributors?
All CY8C4248LQI-BL483 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C4248LQI-BL483 meets industry standards.
7.What is the process for return or replacement of CY8C4248LQI-BL483?
All CY8C4248LQI-BL483 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4248LQI-BL483, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY8C4248LQI-BL483 part is unused and in its original packaging.
Return procedure for CY8C4248LQI-BL483:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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