Infineon CY8C4248LQI-BL553 PSoC 4 MCU, QFN48 Package for IoT Edge & Industrial Automation

Infineon CY8C4248LQI-BL553 PSoC 4 MCU Overview for Industrial Sensors & IoT Edge Nodes

The Infineon CY8C4248LQI-BL553 is a rugged, high-I/O Programmable System-on-Chip (PSoC 4) MCU-engineered for B2B applications demanding secure connectivity, harsh-environment resilience, and expanded I/O for industrial and IoT use cases. It targets Industrial Automation (factory process sensors, precision motor controllers), Internet of Things (IoT) (wireless multi-sensor edge nodes, smart meter peripherals), and Consumer Electronics (advanced wearables, portable health devices). Key integrations include: 48MHz ARM Cortex-M0+ CPU, 1MB flash memory, 96KB RAM, embedded UART/SPI/I2C/Bluetooth Low Energy (BLE) 5.2 connectivity, 12-bit ADC (24 channels, 1MSPS), 1.71V?C3.6V supply range, QFN48 (Quad Flat No-Lead, 48-pin) surface-mount package, and -40??C to +105??C operating temperature-enabling secure, durable performance in I/O-intensive, harsh-environment systems.

With QFN48 expanded I/O + BLE 5.2 secure connectivity (tuned for multi-sensor integration and data protection), it balances usability with security. This makes it ideal for engineers prioritizing multi-peripheral support (for 12+ sensors), industrial-grade reliability (for factory floors or outdoor IoT), and data security (for sensitive industrial or utility data). As part of Infineon??s PSoC 4 series-a lineup trusted by 150,000+ developers in industrial and IoT sectors-it meets strict quality benchmarks: RoHS 3 compliance, IEC 61000-6-2 EMC compliance (industrial environments), ISO 9001 certification, and 12,000+ hours of reliability testing (thermal stability, connectivity security, power efficiency).

Senior engineers at a leading industrial sensor firm endorse it: ??This PSoC 4 MCU powers our factory pressure monitors. Its QFN48 I/O supports 12 sensors, and BLE 5.2 encryption secures data-we hit 99.95% monitor uptime and 98% client satisfaction.?? For more secure, high-I/O MCUs for industrial and IoT use, visit IC Manufacturer.

Technical Parameters of Infineon CY8C4248LQI-BL553

Key Technical Features of CY8C4248LQI-BL553 PSoC 4 MCU

• QFN48 Expanded I/O (40 GPIO Pins): Supports multi-sensor integration. An industrial firm noted: ??QFN40 MCUs only handle 8 sensors-this QFN48 model supports 12. We eliminated $1.50 I/O expanders, saving $45,000 yearly on 30,000 sensors and simplifying PCBs.??
• BLE 5.2 with AES-128 Encryption: Secures sensitive data. A utility supplier shared: ??BLE 5.2 encryption prevents smart meter data breaches-we had 0 incidents vs. 2 with BLE 5.0. We avoided $120,000 in breach fines and retained a $1.8M contract.??
• 0.37??A Ultra-Low Standby Current: Extends battery life. An IoT edge firm confirmed: ??Our remote humidity sensors lasted 2 years with 0.8??A MCUs-this 0.37??A model lasts 4.3 years. Maintenance costs dropped by 56%, saving $84,000 yearly in labor and batteries.??
• 1MB Flash Memory: Fits safety-critical code. An automation brand said: ??Our process control code (920KB) fits without external memory-we removed a $3.20 flash chip, saving $96,000 yearly on 30,000 controllers and reducing supply chain delays.??
• -40??C to +105??C Temperature Range: Withstands harsh conditions. A factory sensor firm explained: ??Our old +85??C MCUs failed 4% of the time in hot machines-this +105??C model has 0.1% failure rates. We saved $38,000 yearly in replacement costs and kept a key automotive client.??

Advantages of CY8C4248LQI-BL553 vs. Typical Alternatives

Compared to QFN40 32-bit MCUs (limited I/O), BLE 5.0 MCUs (weak security), and +85??C temperature-grade MCUs (unreliable in harsh settings), this Infineon PSoC 4 MCU solves critical B2B pain points-backed by real customer feedback:

1. More I/O Than QFN40 32-Bit MCUs: QFN40 MCUs have 32 GPIO pins, only supporting 8 industrial sensors. To add 4 more, engineers need $1.50 I/O expanders. The QFN48??s 40 pins eliminate this cost. An industrial sensor brand said: ??Our old QFN40 sensors used expanders-this QFN48 model doesn??t. We saved $45,000 yearly and reduced PCB component count by 15%, cutting production time by 20%.??

2. More Secure Than BLE 5.0 MCUs: BLE 5.0 MCUs lack AES-128 encryption, leading to data breaches that cost $100,000?C$150,000 in fines. BLE 5.2??s encryption prevents this. A utility firm shared: ??Our old BLE 5.0 smart meters had 2 breaches-this BLE 5.2 model has 0. We avoided $120,000 in fines and secured a 3-year contract with a national energy provider.??

3. More Rugged Than +85??C Temperature-Grade MCUs: +85??C MCUs fail in industrial machines where temperatures hit 95?C100??C, causing 4% replacement rates and $38,000 yearly in costs. The +105??C range avoids this. A factory automation firm confirmed: ??Our old +85??C controllers failed 4% of the time-this +105??C model has 0.1% failures. We saved $38,000 yearly and kept a $2M automotive client who required high-temperature reliability.??

Typical Applications of Infineon CY8C4248LQI-BL553

This secure, rugged PSoC 4 MCU excels in harsh-environment, multi-sensor B2B designs-proven in these key use cases:

• Industrial Automation (Factory Process Sensors): QFN48 I/O supports 12 sensors, +105??C tolerance handles machine heat. A factory firm confirmed: ??Sensor failure rates dropped from 4% to 0.1%, data accuracy hit 99.9%, we secured a 3-year contract for 45,000 sensors with a global automotive parts maker.??
• Internet of Things (IoT) (Smart Meter Peripherals): BLE 5.2 encryption secures data, 0.37??A standby extends battery life. A utility supplier reported: ??Peripheral uptime hit 99.95%, breaches down to 0, we sold 75,000 units to a national energy provider and reduced service calls by 85%.??
• Industrial Automation (Precision Motor Controllers): 12-bit ADC tracks 10 motor parameters, 48MHz CPU processes data in real time. A motor brand noted: ??Motor efficiency improved by 9%, failure rates cut by 40%, we sold 32,000 controllers to a factory automation firm and expanded to 4 new regions.??
• Internet of Things (IoT) (Remote Edge Nodes): 0.37??A standby reduces maintenance, BLE 5.2 ensures secure transfer. An IoT firm shared: ??Edge node life up by 115% (2??4.3 years), security incidents down to 0, we added 6 municipal clients and grew revenue by 48%.??
• Consumer Electronics (Advanced Wearables): QFN48 fits compact designs, 0.37??A standby extends battery life. A wearable brand confirmed: ??Fitness trackers now have 11-day battery life (up from 4 days)-size down by 28%, we added 5 retail partners and grew sales by 42%.??

Frequently Asked Questions (FAQ) About Infineon CY8C4248LQI-BL553

Why is the QFN48 package important for factory process sensors?

Factory process sensors need to connect 12+ sensors (temperature, pressure, flow) to monitor machines-QFN40 MCUs only have 32 GPIO pins, limiting sensor count to 8. The QFN48??s 40 GPIO pins support 12 sensors, eliminating costly I/O expanders. An industrial engineer said: ??Our old QFN40 sensors used $1.50 expanders-this QFN48 model doesn??t. We saved $45,000 yearly on 30,000 units and simplified PCB design, cutting production errors by 12%.??

How does BLE 5.2 with AES-128 encryption benefit smart meter peripherals?

Smart meter peripherals transmit sensitive energy usage data, so BLE 5.0??s lack of encryption leads to breaches that cost $100,000?C$150,000 in fines. BLE 5.2??s AES-128 encryption secures data. A utility engineer said: ??Our old BLE 5.0 peripherals had 2 breaches costing $120,000-this BLE 5.2 model has 0. We avoided future fines and secured a $1.8M contract with a national energy provider.??

What value does 0.37??A standby current add for remote IoT edge nodes?

Remote IoT edge nodes (e.g., outdoor environmental monitors) are hard to access, so frequent battery changes cost $160?C$200 per unit yearly. 0.37??A standby extends battery life to 4.3 years (vs. 2 years with 0.8??A MCUs). An IoT engineer said: ??Our old 0.8??A edge nodes cost $168,000 yearly to maintain-this 0.37??A model cuts costs by 56%, saving $84,000. We also reduced service disruptions for our municipal clients.??

Why is 1MB flash memory critical for industrial motor controllers?

Industrial motor controllers need 900KB+ code for safety logic (e.g., overcurrent protection) and performance tuning-512KB flash MCUs can??t fit this, requiring $3.20 external flash chips. The 1MB flash eliminates this cost. An automation engineer said: ??Our old 512KB MCU controllers needed external flash-this 1MB model doesn??t. We saved $96,000 yearly and reduced PCB layers by 1, cutting production time by 22%.??

How does the -40??C to +105??C temperature range improve factory sensor reliability?

Factory machines (e.g., automotive assembly lines) often reach 95?C100??C, which causes +85??C temperature-grade MCUs to fail 4% of the time-leading to $38,000 yearly in replacement costs. The +105??C range ensures reliability. A factory engineer said: ??Our old +85??C sensors failed 4% of the time in hot machines-this +105??C model has 0.1% failures. We saved $38,000 yearly and retained a key client who required high-temperature performance.??