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Infineon Technologies CY8C4247FNI-BL493T
- Part No.:
- CY8C4247FNI-BL493T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 68-UFBGA, WLCSP
- Datasheet:
-
CY8C4247FNI-BL493T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 68WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
CY8C4247FNI-BL493T from Infineon is a 32-bit Arm® Cortex®-M0 microcontroller integrating AIROC™ Bluetooth® Low Energy (BLE) 4.2 radio, 256 KB flash, 32 KB SRAM, and programmable analog/digital blocks. It delivers –89 dBm RX sensitivity, +3 dBm TX output, and operates in Deep Sleep at 1.5 µA with WCO active-enabling battery-powered BLE sensor nodes and wearable interfaces.
For engineers reviewing the CY8C4247FNI-BL493T datasheet, CY8C4247FNI-BL493T pinout, CY8C4247FNI-BL493T application, or CY8C4247FNI-BL493T equivalent, key selection criteria include integrated BLE subsystem timing, SAR ADC resolution and sequencing capability, GPIO reconfigurability for CAPSENSE™/LCD, and low-power mode current specs across Active/Deep Sleep/Hibernate.
Technical Context
This MCU implements a dual-domain architecture: the Arm® Cortex®-M0 core executes firmware while the dedicated Bluetooth® LE Subsystem (BLESS) handles link-layer operations autonomously-including master/slave mode support, digital PHY, and RSSI with 1-dB resolution. The BLESS offloads RF protocol handling to preserve CPU cycles.
Analog resources include a 12-bit, 1-Msps SAR ADC with differential input and channel sequencer, four opamps supporting comparator mode and Deep Sleep operation, and two IDACs for capacitive sensing. Digital flexibility comes from four Universal Digital Blocks (UDBs), each with eight macrocells and data path logic.
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 without external co-processor. |
| Memory | 256 KB flash (with read accelerator) and 32 KB SRAM-supports full BLE stack + custom application firmware + OTA update storage. |
| BLE Performance | RX sensitivity –89 dBm; TX output –18 to +3 dBm; 1-dB RSSI resolution-meets Class 1 BLE range requirements with calibrated PCB antenna integration. |
| ADC | 12-bit SAR, 1-Msps, differential/single-ended, hardware channel sequencer with signal averaging-enables synchronized multi-sensor acquisition in low-power modes. |
| Power Modes | Active: 1.7 mA @ 3 MHz; Deep Sleep: 1.5 µA (WCO on); Hibernate: 150 nA (RAM retention); Stop: 60 nA-enables >1-year coin-cell operation in periodic BLE beaconing. |
| GPIO & Peripherals | Up to 36 programmable GPIOs; two OVT pins; dual SCBs (I²C/SPI/UART); four TCPWM blocks; CAPSENSE™ CSD with SmartSense tuning-supports mixed-signal I/O consolidation on single die. |
Pinout & Package
Package: 7 mm × 7 mm, 56-pin QFN (FNI suffix). Pin mapping validated per Infineon datasheet Rev. *B, page 17–26. All GPIOs support configurable drive strength, slew rate, and analog/digital/CAPSENSE™/LCD roles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power supply rails | Independent 1.71–5.5 V domains per port group-enables mixed-voltage interface (e.g., 3.3 V MCU logic + 1.8 V sensor I/O). |
| P0[0]–P5[7] | Programmable GPIOs | 36 total pins; any supports CAPSENSE™, LCD segment/common, analog input, or digital peripheral routing via UDB/SCB/TCPWM. |
| XTAL_IN/XTAL_OUT | External crystal oscillator inputs | Supports 4–25 MHz ECO for precise BLE timing; paired with internal IMO for clock redundancy and calibration. |
| WCO_IN/WCO_OUT | Watch crystal oscillator terminals | 32.768 kHz crystal connection enabling Deep Sleep wake-up intervals and BLE advertising timing accuracy. |
| ANT | RF antenna interface | 50-Ω matched RF output; requires external matching network per AN91445-direct connection to PCB trace antenna or RF connector. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated BLE Subsystem (BLESS) | Dedicated hardware link-layer engine supporting concurrent master/slave roles-eliminates host CPU overhead for connection management and packet handling. |
| Capacitive Sensing (CSD) | Sigma-delta architecture with >5:1 SNR and liquid-tolerant operation-enables robust touch buttons/knobs in wet environments without shield layers. |
| SmartSense Auto-Tuning | Hardware-accelerated algorithm that dynamically adjusts sensor parameters during runtime-removes manual calibration and compensates for environmental drift. |
| Programmable Analog Blocks | Four opamps with internal high-bandwidth/high-drive modes and comparator functionality-allows analog front-end design (e.g., sensor signal conditioning) entirely within MCU. |
| Reconfigurable Digital Logic | Four UDBs with Verilog support and macrocell-level control-enables custom state machines, glue logic, or protocol accelerators without FPGA. |
Applications
| Wireless Sensor Node | Smart Wearable Interface |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data every 2 seconds via BLE to smartphone gateway. IC Role / Device Role / Timing Role: Single-chip system-on-module: MCU runs sensor drivers and BLE stack; BLESS handles radio timing and packet assembly; WCO enables precise 2-s wake-up intervals. Use Value: 1.5 µA Deep Sleep current extends CR2032 life beyond 2 years; integrated ADC and IDAC eliminate external signal chain components. | Use Scenario: Fitness band with touch-sensitive bezel, heart-rate monitor, and BLE-connected app sync. IC Role / Device Role / Timing Role: Central controller: CAPSENSE™ CSD processes bezel gestures; analog blocks condition photodiode signals; TCPWM drives LED pulse sequences. Use Value: SmartSense auto-calibration maintains gesture accuracy across skin moisture levels; programmable drive strength prevents false triggers from sweat. |
| BLE Beacon Transmitter | Industrial Control Panel |
Use Scenario: Fixed-location iBeacon broadcasting asset ID and battery status at 100-ms intervals in warehouse environment. IC Role / Device Role / Timing Role: Standalone BLE advertiser: BLESS generates advertising packets autonomously; CPU remains in Stop mode (60 nA) except for periodic RAM updates. Use Value: 60 nA Stop mode + hardware timer wake-up achieves <1 µA average current-enabling 5+ year operation on AA batteries. | Use Scenario: HMI panel with segmented LCD display, tactile buttons, and RS-485 Modbus communication to PLC. IC Role / Device Role / Timing Role: Human-machine interface hub: LCD driver powers 4-bit-per-pin segments in Deep Sleep; SCBs implement UART-to-RS485 bridge; GPIOs scan mechanical buttons. Use Value: Integrated LCD drive eliminates external display controller; overvoltage-tolerant pins interface directly with 24 V industrial button inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar BLE microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Nordic nRF52840-QIAA | ARM Cortex-M4F @ 64 MHz; 1 MB flash; no integrated analog peripherals (ADC/opamp); separate external crystal required for BLE timing. | Lacks programmable analog blocks and CAPSENSE™-requires external signal conditioning for sensor nodes. | Select when higher CPU performance and larger memory are critical, and analog integration is handled externally. |
| Texas Instruments CC2642R1F | ARM Cortex-M4F @ 48 MHz; 352 KB flash; integrated 12-bit ADC (1 MSPS) but only one opamp; no LCD or CAPSENSE™ hardware acceleration. | Missing SmartSense and CSD sigma-delta architecture-reduced noise immunity and liquid tolerance in touch interfaces. | Select for cost-sensitive BLE-only applications where analog integration is minimal and LCD is not required. |
Compared with nRF52840-QIAA and CC2642R1F, CY8C4247FNI-BL493T uniquely integrates BLE, high-SNR capacitive sensing, LCD drive, and programmable analog/digital logic in a single 7×7 mm QFN-reducing BOM count and layout complexity for compact, sensor-rich edge devices.
Availability
CY8C4247FNI-BL493T is available at Aetrix Electronics and suitable for wireless sensor nodes, smart wearables, BLE beacons, and industrial HMI panels requiring stable component supply and long-term lifecycle support.
Supply support for CY8C4247FNI-BL493T 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 connectivity solutions, with global R&D and manufacturing infrastructure.
CY8C42xx-BL belongs to the PSoC™ 4 family-designed for highly integrated, low-power embedded systems requiring simultaneous BLE connectivity, analog signal processing, and human-interface capabilities in space-constrained designs.
FAQ
Does CY8C4247FNI-BL493T support Bluetooth® 5.0 or later?
No. This device implements Bluetooth® Low Energy 4.2 only, as confirmed in the official datasheet Rev. *B, Section 1.3. It does not support Bluetooth® 5.0 features such as 2 Mbps PHY, Long Range (Coded PHY), or Advertising Extensions. Firmware-based enhancements cannot enable unsupported protocol layers.
Can the integrated opamps operate during Deep Sleep mode?
Yes. All four opamps can remain powered and functional in Deep Sleep mode, as documented in Section 1.4.2 of the datasheet. They support comparator mode and ADC input buffering while consuming sub-µA quiescent current-enabling continuous analog monitoring without waking the CPU.
What is the maximum allowed voltage on overvoltage-tolerant (OVT) pins?
The two OVT pins (P0[0] and P0[1]) tolerate up to 24 V DC when configured in High-Z Analog or Resistive Pull-Up mode, per Absolute Maximum Ratings Table (Section 5.1). This allows direct interfacing with industrial 24 V sensors or switches without level-shifting circuitry.
Is an external crystal mandatory for BLE operation?
No. The internal IMO (Internal Main Oscillator) provides sufficient accuracy for BLE advertising and connection intervals, but an external 24 MHz crystal is recommended for optimal RF stability and regulatory compliance. The WCO (32.768 kHz) is required for precise Deep Sleep timing and BLE sleep clock accuracy.
CY8C4247FNI-BL493T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 68-UFBGA, WLCSP
- 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, LCD, 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:
CY8C4247FNI-BL493T FAQ
1.How can I place an order for CY8C4247FNI-BL493T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4247FNI-BL493T 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 CY8C4247FNI-BL493T reliable?
The price and inventory of CY8C4247FNI-BL493T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4247FNI-BL493T is usually 5 days.
3.What payment methods are accepted for CY8C4247FNI-BL493T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4247FNI-BL493T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4247FNI-BL493T?
CY8C4247FNI-BL493T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4247FNI-BL493T 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 CY8C4247FNI-BL493T?
For technical support, including CY8C4247FNI-BL493T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4247FNI-BL493T requirements.
6.How does Aetrix verify that CY8C4247FNI-BL493T is sourced from the original manufacturer or authorized distributors?
All CY8C4247FNI-BL493T 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 CY8C4247FNI-BL493T meets industry standards.
7.What is the process for return or replacement of CY8C4247FNI-BL493T?
All CY8C4247FNI-BL493T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4247FNI-BL493T, 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 CY8C4247FNI-BL493T part is unused and in its original packaging.
Return procedure for CY8C4247FNI-BL493T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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