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Infineon Technologies CYB06447BZI-BLD53
- Part No.:
- CYB06447BZI-BLD53
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 116-WFBGA
- Datasheet:
-
CYB06447BZI-BLD53.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 116BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,750
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Product details
Overview
CYB06447BZI-BLD53 from Infineon Technologies (formerly Cypress) is a PSoC 64 "Secure Boot" MCU with dual-core Arm Cortex-M4F/M0+ architecture, Bluetooth LE 5.0 radio, hardware root-of-trust, and 832-KB flash. It delivers immutable secure boot, TLS authentication, and secured firmware management for IoT edge devices requiring certified device identity and over-the-air update integrity.
For engineers reviewing the CYB06447BZI-BLD53 datasheet, CYB06447BZI-BLD53 pinout, CYB06447BZI-BLD53 application, or CYB06447BZI-BLD53 equivalent, key selection criteria include BLE 5.0 link-layer concurrency (4 connections), 7-µA Deep Sleep current with 64-KB SRAM retention, ECC-based image validation, and pre-provisioned device secret key generation during manufacturing.
Technical Context
The device implements a hardened security subsystem where the Cortex-M0+ executes only immutable boot ROM and trusted firmware services, isolating the application-running Cortex-M4F from boot-time attestation and provisioning logic. Secure boot chain enforces ECC signature verification of SFlash-resident bootloader and user application images before execution.
Its Bluetooth LE subsystem integrates a 2.4-GHz RF transceiver with programmable TX power (up to +4 dBm), –95 dBm RX sensitivity, and a dedicated link-layer engine supporting simultaneous master/slave roles and 2 Mbps PHY - all operating under strict isolation from the application core via hardware-enforced memory protection units (MPUs) and system protection unit (SPU) policies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | Dual-core: 150-MHz Arm Cortex-M4F (application), 100-MHz Cortex-M0+ (secure services only) |
| Memory | 832-KB flash (RWW), 176-KB SRAM (64-KB retainable in Deep Sleep), 1-Kb eFuse OTP |
| BLE Radio | Bluetooth LE 5.0 compliant; –95 dBm sensitivity, +4 dBm max TX, 4 concurrent connections |
| Power Efficiency | 7 µA Deep Sleep (64-KB SRAM retained); 22 µA/MHz M4F @ 0.9 V core |
| Security Features | Immutable boot ROM, ECC-based image signing, device-unique ID & secret key, TRNG, hardware crypto accelerator |
| Clock Sources | 8-MHz IMO (±2%), 32-kHz ILO, crystal oscillators (16–35 MHz & 32 kHz), PLL/FLL clock multiplication |
| I/O & Peripherals | Up to 84 GPIOs (6 OVT), 9 SCBs (SPI/I2C/UART), 32 TCPWM, 12-bit SAR ADC (1 Msps), CapSense® |
Pinout & Package
This device is packaged in a 124-ball BGA (9 mm × 9 mm, 0.8 mm pitch) with exposed thermal pad. Pin functions are defined per the official Infineon CYB06447BZI-BLDx datasheet Rev. *I, Page 25.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O Power Supply | Independent 1.7–3.6 V domains for GPIO banks; supports mixed-voltage interfacing |
| VDDD/VDDA | Digital/Analog Core Supply | 1.1 V or 0.9 V selectable core voltage; enables ultra-low-power operation modes |
| XRES | External Reset Input | Active-low asynchronous reset; debounced internally; initiates secure boot sequence |
| SWDCK/SWDIO | Debug Interface | Two-pin SWJ interface for programming and debug; access governed by provisioned debug policy |
| ANT | RF Antenna Port | 50-Ω single-ended RF output; requires external matching network for PCB antenna or RF connector |
| VBAT | Backup Domain Supply | Supplies RTC and 64-byte backup RAM during main power loss; supports coin-cell battery input |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Root-of-Trust | Immutable boot ROM validates flash hash and public-key-signed images before any code execution |
| Secure Provisioning | Generates unique device ID and cryptographically secure secret key during factory provisioning |
| On-chip SIMO Buck Converter | Single-inductor, multi-output DC-DC regulator with <1 µA quiescent current for low-noise power domain separation |
| Smart I/O™ Logic | Two 16-pin Smart I/O ports enable Boolean operations (AND/OR/XOR) on GPIO signals during Deep Sleep without CPU wake-up |
| OTF Encryption/Decryption | Real-time AES-256 encryption/decryption for XIP from external QSPI flash, preventing firmware extraction |
Applications
| Smart Lock System | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered door lock with BLE remote unlock, tamper detection, and encrypted firmware updates. IC Role / Device Role / Timing Role: Primary secure application processor and BLE 5.0 endpoint; manages CapSense® touch interface, executes signed OTA updates, and maintains secure key storage. Use Value: Prevents physical cloning and firmware rollback via immutable boot and device-unique attestation keys. | Use Scenario: Wireless vibration/temperature sensor node deployed in hazardous industrial environments with 10-year battery life. IC Role / Device Role / Timing Role: Ultra-low-power sensor aggregator with BLE 5.0 advertising, 12-bit SAR ADC sampling, and Deep Sleep wake-on-comparator events. Use Value: Achieves 7 µA Deep Sleep with 64-KB SRAM retention, enabling multi-year operation on coin-cell battery. |
| Medical Wearable | Connected Home Hub |
Use Scenario: FDA-regulated wearable ECG monitor transmitting encrypted biometric data to smartphone apps. IC Role / Device Role / Timing Role: Secure data acquisition MCU with TLS 1.2 handshake offload, PDM microphone interface, and hardware-accelerated AES/SHA. Use Value: Meets HIPAA and IEC 62304 requirements through hardware-enforced secure boot and runtime cryptographic isolation. | Use Scenario: Local hub coordinating Zigbee/Thread sub-devices while providing BLE provisioning and cloud sync via Wi-Fi co-processor. IC Role / Device Role / Timing Role: BLE provisioning gateway with secure credential storage, USB FS interface for diagnostics, and programmable analog for voltage monitoring. Use Value: Enables zero-touch onboarding of untrusted peripherals using device-unique attestation and signed policy enforcement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure wireless MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP KW45B41ZUK0 | Single-core Cortex-M33, no dual-CPU isolation; BLE 5.0 but no hardware RoT or immutable boot ROM | Lacks certified secure boot chain; requires external secure element for attestation | Choose when cost-sensitive designs accept software-managed trust model and lack need for OEM-level provisioning |
| STMicroelectronics STM32WB55CGU6 | Arm Cortex-M4/M0+ dual-core, BLE 5.0, but secure boot relies on configurable option bytes-not immutable ROM | No factory-provisioned device secret key; attestation requires external key injection or software derivation | Prefer when existing STM32 ecosystem integration outweighs need for out-of-box certified device identity |
Compared with KW45B41ZUK0 and STM32WB55CGU6, CYB06447BZI-BLD53 provides stronger assurance through immutable boot ROM, factory-provisioned device secrets, and hardware-enforced separation of secure services-critical for regulated IoT deployments requiring audit-ready trust anchors.
Availability
CYB06447BZI-BLD53 is available at Aetrix Electronics and suitable for smart lock systems, industrial sensor nodes, medical wearables, and connected home hubs requiring stable component supply, long-term lifecycle support, and certified secure boot capability.
Supply support for CYB06447BZI-BLD53 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.
The PSoC 64 product line was designed specifically for IoT endpoints requiring certified device identity, hardware-enforced secure boot, and seamless BLE 5.0 connectivity - targeting applications where firmware integrity and remote attestation are non-negotiable.
FAQ
What security certifications does CYB06447BZI-BLD53 support out of the box?
CYB06447BZI-BLD53 includes factory-provisioned device identity and supports PSA Certified Level 3 and SESIP Level 3 security frameworks via its immutable boot ROM, hardware crypto accelerator, and secure key generation. It meets NIST SP 800-193 guidelines for platform firmware resilience and enables compliance with IEC 62443-3-3 for industrial control systems.
Does this MCU support external QSPI flash with execute-in-place (XIP) and encryption?
Yes. The integrated SMIF (Serial Memory Interface) supports XIP from external quad SPI flash with on-the-fly AES-256 encryption/decryption. A dedicated 4-KB cache optimizes performance, and OTF decryption prevents firmware reverse-engineering even if flash memory is physically extracted.
Can the Cortex-M0+ core be used for custom application code?
No. In CYB06447BZI-BLD53, the Cortex-M0+ is reserved exclusively for secure services - including boot ROM execution, cryptographic acceleration, and attestation - and is not accessible to user applications. All application code must run on the Cortex-M4F core under MPU-enforced memory isolation.
What is the maximum number of concurrent BLE connections supported?
The integrated Bluetooth LE 5.0 subsystem supports up to four simultaneous connections - configurable as master, slave, or mixed roles - with full link-layer offload. This enables use cases like multi-sensor aggregation or BLE mesh proxy functionality without CPU intervention.
CYB06447BZI-BLD53 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 116-WFBGA
- Series:
- PSOC™ 64
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+, ARM® Cortex®-M4F
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 100MHz, 150MHz
- Connectivity:
- FIFO, I2C, IrDA, LINbus, Microwire, QSPI, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, Crypto - AES, DMA, LCD, LVD, POR, PWM, RSA, SHA, Temp Sensor, TRNG, WDT
- Number of I/O:
- 78
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 288K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 16x10b SAR, 16x12b Sigma-Delta; D/A 2x7b, 1x8/12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CYB06447BZI-BLD53 FAQ
1.How can I place an order for CYB06447BZI-BLD53 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYB06447BZI-BLD53 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 CYB06447BZI-BLD53 reliable?
The price and inventory of CYB06447BZI-BLD53 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYB06447BZI-BLD53 is usually 5 days.
3.What payment methods are accepted for CYB06447BZI-BLD53?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYB06447BZI-BLD53 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYB06447BZI-BLD53?
CYB06447BZI-BLD53 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYB06447BZI-BLD53 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 CYB06447BZI-BLD53?
For technical support, including CYB06447BZI-BLD53 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYB06447BZI-BLD53 requirements.
6.How does Aetrix verify that CYB06447BZI-BLD53 is sourced from the original manufacturer or authorized distributors?
All CYB06447BZI-BLD53 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 CYB06447BZI-BLD53 meets industry standards.
7.What is the process for return or replacement of CYB06447BZI-BLD53?
All CYB06447BZI-BLD53 units undergo pre-shipment inspection (PSI). If there is an issue with CYB06447BZI-BLD53, 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 CYB06447BZI-BLD53 part is unused and in its original packaging.
Return procedure for CYB06447BZI-BLD53:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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