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Infineon Technologies CY8C4247LQI-BL453T
- Part No.:
- CY8C4247LQI-BL453T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 56-UFQFN Exposed Pad
- Datasheet:
-
CY8C4247LQI-BL453T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 56QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,640
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Product details
Overview
CY8C4247LQI-BL453T from Infineon is a 32-bit Arm® Cortex®-M0 microcontroller integrating AIROC™ Bluetooth® Low Energy (BLE) 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 and +3 dBm TX output in a 7 mm × 7 mm 56-pin QFN package, targeting compact wireless sensor nodes and battery-powered IoT endpoints.
For engineers reviewing the CY8C4247LQI-BL453T datasheet, CY8C4247LQI-BL453T pinout, CY8C4247LQI-BL453T application, or CY8C4247LQI-BL453T equivalent, key selection criteria include integrated BLE subsystem power efficiency (15.6 mA TX @ 0 dBm), Deep Sleep current (1.5 µA), SAR ADC performance (12-bit, 1-Msps), and GPIO flexibility (36 programmable pins with CAPSENSE™/LCD/analog support).
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 drives a 50-Ω antenna directly and includes hardware RSSI with 1-dB resolution.
The analog subsystem integrates four opamps (with Comparator mode and Deep Sleep operation), a 12-bit SAR ADC with channel sequencer and signal averaging, and two low-power comparators - all configurable via PSoC™ Creator without firmware overhead.
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 power budgets. |
| Memory | 256 KB flash (with read accelerator) + 32 KB SRAM - supports complex BLE custom profiles and over-the-air (OTA) firmware updates. |
| BLE Radio | Bluetooth® LE 4.2, –89 dBm RX sensitivity, +3 dBm max TX output - ensures robust 10–30 m range in noisy 2.4 GHz environments. |
| ADC | 12-bit SAR, 1-Msps, differential/single-ended, with channel sequencer and hardware averaging - delivers high-SNR acquisition for multi-sensor systems. |
| Power Modes | Deep Sleep: 1.5 µA (WCO active); Hibernate: 150 nA (RAM retention); Stop: 60 nA - extends coin-cell battery life to multi-year operation. |
| GPIO | 36 programmable pins; any pin supports CAPSENSE™, LCD segment drive, analog input, or digital I/O - eliminates external signal conditioning in HMI and sensing designs. |
Pinout & Package
Package: 7 mm × 7 mm, 56-pin QFN (LQFP-style exposed pad, RoHS-compliant, moisture sensitivity level 3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 1.71–5.5 V input; powers digital logic, analog blocks, and BLE subsystem - supports direct connection to single-cell Li-ion or coin-cell via LDO. |
| VSS | Ground reference | Dedicated analog/digital ground pins reduce noise coupling between BLE RF and precision ADC paths. |
| P0[0]–P0[7] | General-purpose I/O | Support CAPSENSE™, LCD segment/common, opamp output, or SCB (I²C/SPI/UART) - enables mixed-signal peripheral consolidation. |
| P12[0]–P12[3] | BLE antenna interface | Differential RFIO_P/N pins with internal matching network - connects directly to PCB antenna or balun without external components. |
| XRES | Active-low reset | Asynchronous reset input with internal pull-up; debounced by hardware - simplifies external reset circuitry in space-constrained layouts. |
| SWDCK / SWDIO | Debug interface | Two-pin Serial Wire Debug (SWD) - enables in-circuit programming and real-time trace without dedicated JTAG header. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated BLE Subsystem (BLESS) | Dedicated hardware link-layer engine and digital PHY offload host CPU, enabling concurrent application + BLE processing at <1.7 mA active current. |
| Capacitive Sensing (CSD) | Hardware-accelerated sigma-delta sensing with >5:1 SNR and liquid-tolerant operation - eliminates need for external touch controller in wet-environment HMI. |
| Programmable Analog Blocks | Four opamps configurable as PGA, comparator, or ADC buffer - allows dynamic gain adjustment and zero-crossing detection without firmware intervention. |
| Reconfigurable Digital Logic (UDBs) | Four universal digital blocks (8 macrocells each) implement custom state machines or PWM timing - replaces discrete logic ICs in motor control or protocol bridging. |
| Segment LCD Driver | Drives up to 288 segments directly from any GPIO; operates in Deep Sleep - enables ultra-low-power display in medical wearables and smart tags. |
Applications
| Smart Wearable Sensor Hub | BLE-enabled Industrial Control Panel |
|---|---|
Use Scenario: Compact wrist-worn device monitoring heart rate, motion, and ambient temperature with periodic BLE telemetry to smartphone. IC Role / Device Role / Timing Role: Central MCU executing sensor fusion algorithm, managing BLE advertising/connection, and driving capacitive touch UI. Use Value: Integrated CSD and 1.5 µA Deep Sleep extend CR2032 battery life beyond 12 months; on-chip opamps condition analog sensor signals without external amplifiers. | Use Scenario: Wall-mounted HMI panel in factory automation, displaying machine status and accepting operator commands via touch buttons. IC Role / Device Role / Timing Role: Real-time controller interfacing with PLC via UART, rendering LCD graphics, and relaying alarms via BLE to maintenance tablets. Use Value: 36 GPIOs support simultaneous LCD segment drive, CAPSENSE™ buttons, and RS-485 transceiver control; hardware TCPWM blocks generate precise PWM for backlight dimming. |
| Wireless Battery Management Node | Asset Tracking Tag |
Use Scenario: Small PCB attached to lithium battery pack, measuring cell voltage, temperature, and reporting SoH via BLE to gateway. IC Role / Device Role / Timing Role: Precision analog front-end (12-bit ADC + opamp buffering) and BLE endpoint with OTA update capability. Use Value: 12-bit ADC with hardware averaging achieves ±1 mV voltage measurement accuracy; 60 nA Stop mode minimizes self-discharge during storage. | Use Scenario: Passive logistics tag affixed to shipping pallet, broadcasting unique ID and temperature history via BLE beacon mode. IC Role / Device Role / Timing Role: Ultra-low-power BLE broadcaster with internal temperature sensor and nonvolatile event logging in flash. Use Value: 150 nA Hibernate mode with RAM retention preserves session state across power cycles; SmartSense auto-tunes CAPSENSE™ for reliable button press detection after mechanical shock. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar BLE microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Nordic nRF52833 | 64 MHz Arm® Cortex®-M4F, 512 KB flash, -96 dBm RX sensitivity, no integrated opamps or CAPSENSE™ | Higher compute throughput for audio processing; lacks analog front-end integration | Select when prioritizing BLE throughput and floating-point math over analog sensor integration. |
| Texas Instruments CC2642R | 48 MHz Arm® Cortex®-M4F, 352 KB flash, -101 dBm RX sensitivity, integrated RF BAW filter, no programmable analog blocks | Better RF immunity in dense 2.4 GHz environments; requires external opamps for sensor conditioning | Select for industrial gateways requiring coexistence with Wi-Fi/Zigbee, not for embedded analog-sensing endpoints. |
Compared with nRF52833 and CC2642R, CY8C4247LQI-BL453T uniquely combines BLE 4.2, programmable analog (opamps, ADC, comparators), and CAPSENSE™ in one die - reducing BOM count and PCB area for cost-sensitive, sensor-rich IoT edge nodes.
Availability
CY8C4247LQI-BL453T is available at Aetrix Electronics and suitable for smart wearables, industrial HMIs, battery management systems, and asset tracking tags requiring stable component supply and long-term lifecycle support.
Supply support for CY8C4247LQI-BL453T 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, sensing, connectivity, and security solutions for automotive, industrial, and IoT markets.
CY8C4247LQI-BL453T belongs to the PSoC™ 4 CY8C4xxx-BL family, designed specifically to unify BLE connectivity, reconfigurable analog/digital logic, and ultra-low-power operation in single-chip solutions for resource-constrained edge devices.
FAQ
Does CY8C4247LQI-BL453T support Bluetooth® LE 5.0 or later?
No. This device implements Bluetooth® LE 4.2 only, as confirmed in the official Infineon datasheet (Rev. *B). It does not support LE 5.0 features such as Long Range (Coded PHY) or higher data rates. For LE 5.0, consider Infineon's later-generation AIROC™ modules like CYW20829.
Can the on-chip opamps drive external loads directly?
Yes - each of the four opamps supports high-drive external mode (up to 25 mA sink/source) and can directly drive resistive touch overlays, LED biasing circuits, or small solenoids without external buffers, provided supply voltage and thermal limits are observed per the Electrical Specifications section.
Is the 7 mm × 7 mm QFN package lead-free and RoHS-compliant?
Yes. The CY8C4247LQI-BL453T uses a lead-free, halogen-free, RoHS-compliant 56-pin QFN package with an exposed thermal pad, as specified in Infineon's packaging documentation and verified on Digi-Key and Mouser product pages.
What development tools are required to program this MCU?
PSoC™ Creator (legacy IDE) or ModusToolbox™ (current Infineon IDE) is required. Programming uses SWD interface via MiniProg3 or KitProg3 debug probes. No external programmer is needed - onboard bootloader supports UART-based firmware updates after initial flash programming.
CY8C4247LQI-BL453T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 56-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4xx8 BLE
- Packaging:
- Tape & Reel (TR)
- 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, LVD, POR, PWM, SmartCard, SmartSense, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4247LQI-BL453T FAQ
1.How can I place an order for CY8C4247LQI-BL453T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4247LQI-BL453T 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 CY8C4247LQI-BL453T reliable?
The price and inventory of CY8C4247LQI-BL453T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4247LQI-BL453T is usually 5 days.
3.What payment methods are accepted for CY8C4247LQI-BL453T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4247LQI-BL453T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4247LQI-BL453T?
CY8C4247LQI-BL453T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4247LQI-BL453T 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 CY8C4247LQI-BL453T?
For technical support, including CY8C4247LQI-BL453T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4247LQI-BL453T requirements.
6.How does Aetrix verify that CY8C4247LQI-BL453T is sourced from the original manufacturer or authorized distributors?
All CY8C4247LQI-BL453T 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 CY8C4247LQI-BL453T meets industry standards.
7.What is the process for return or replacement of CY8C4247LQI-BL453T?
All CY8C4247LQI-BL453T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4247LQI-BL453T, 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 CY8C4247LQI-BL453T part is unused and in its original packaging.
Return procedure for CY8C4247LQI-BL453T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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