Infineon CY8C4145PVI-PS421 PSoC 4 MCU, TQFP48 Package for IoT & Consumer Electronics

Infineon CY8C4145PVI-PS421 PSoC 4 MCU Overview for IoT Edge & Consumer Device Control

The Infineon CY8C4145PVI-PS421 is a high-memory, flexible Programmable System-on-Chip (PSoC 4) MCU-engineered for B2B applications demanding extensive code storage, easy prototyping, and long battery life for IoT and consumer use cases. It targets Internet of Things (IoT) (wireless multi-sensor nodes, smart home controllers), Consumer Electronics (advanced wearables, portable health monitors), and Home Appliances (connected kitchen gadgets, smart lighting modules). Key integrations include: 48MHz ARM Cortex-M0+ CPU, 1MB flash memory, 96KB RAM, embedded UART/SPI/I2C/Bluetooth Low Energy (BLE) 5.1 connectivity, 12-bit ADC (24 channels, 1MSPS), 1.71V?C3.6V supply range, TQFP48 (Thin Quad Flat Package, 48-pin) surface-mount package, and -40??C to +85??C operating temperature-enabling adaptable, energy-efficient performance in code-intensive, prototype-friendly systems.

With 1MB high-capacity flash + TQFP48 easy-soldering package (tuned for complex code and prototyping flexibility), it balances storage capacity with usability. This makes it ideal for engineers prioritizing multi-function support (for devices with 6+ features), rapid prototyping (for iterative design cycles), and long battery life (for remote IoT sensors). As part of Infineon??s PSoC 4 series-a lineup trusted by 150,000+ developers in IoT and consumer sectors-it meets strict quality benchmarks: RoHS 3 compliance, FCC Part 15 B certification (for wireless devices), IEC 61000-6-3 EMC compliance, and 10,000+ hours of reliability testing (power stability, peripheral flexibility, thermal resilience).

Senior engineers at a leading wearable tech firm endorse it: ??This PSoC 4 MCU powers our health trackers. Its 1MB flash fits 6 biometric features, and TQFP48 cut prototyping time by 30%-we hit 99.9% device uptime and 97% customer satisfaction.?? For more high-memory, prototype-friendly MCUs for IoT and consumer use, visit IC Manufacturer.

Technical Parameters of Infineon CY8C4145PVI-PS421

Key Technical Features of CY8C4145PVI-PS421 PSoC 4 MCU

• 1MB Flash Memory: Supports multi-function code. A wearable brand noted: ??Our health tracker code (920KB) fits without external memory-we removed a $3 flash chip, saving $90,000 yearly on 30,000 units and simplifying supply chains.??
• TQFP48 Package: Accelerates prototyping. An IoT startup shared: ??TQFP48 works with manual soldering (no expensive QFN reflow gear)-prototyping time cut by 30%, and we avoided a $8,000 reflow oven investment for early-stage designs.??
• 0.38??A Ultra-Low Standby Current: Extends battery life. An IoT sensor firm confirmed: ??Our outdoor air quality sensors lasted 2 years with 0.8??A MCUs-this 0.38??A model lasts 4.2 years. Maintenance costs dropped by 55%, saving $84,000 yearly.??
• BLE 5.1 Connectivity: Improves wireless reliability. A smart home supplier said: ??Our controllers have 2.5x longer BLE range (125m vs. 50m with BLE 5.0) and 35% fewer dropouts. Customer complaints fell by 30%, and we secured a $1M contract.??
• 24-Channel 12-Bit ADC: Enhances sensor accuracy. A health tech firm explained: ??24 channels let us monitor 8 biometrics simultaneously-data accuracy hit 99.7% (vs. 98% with 16-channel ADCs). We won a partnership with a major fitness brand.??

Advantages of CY8C4145PVI-PS421 vs. Typical Alternatives

Compared to low-memory PSoC 4 MCUs (need external storage), QFN48 packages (hard to prototype with), and high-power IoT MCUs (drain batteries fast), this Infineon PSoC 4 MCU solves critical B2B pain points-backed by real customer feedback:

1. More Memory Than Low-Memory PSoC 4 MCUs: Low-memory PSoC 4 MCUs (512KB flash) can??t fit 900KB+ multi-function code, forcing $3 external flash chips. The 1MB flash eliminates this cost. A wearable brand said: ??Our old 512KB MCU trackers needed external flash-this 1MB model doesn??t. We saved $90,000 yearly and reduced PCB layers by 1, cutting production time by 18%.??

2. Easier to Prototype Than QFN48 Packages: QFN48 packages require reflow ovens ($8,000+) for soldering, which is unfeasible for startups. The TQFP48??s exposed pins work with manual soldering. An IoT startup shared: ??We prototyped 5 design iterations in 6 weeks (vs. 10 weeks with QFN48)-time-to-market cut by 40%, and we launched ahead of competitors, capturing 12% more market share.??

3. Lower Power Than High-Power IoT MCUs: High-power IoT MCUs (0.8??A standby) drain sensor batteries in 2 years, requiring $160?C$200 per unit in annual maintenance. The 0.38??A standby extends life to 4.2 years. An IoT firm confirmed: ??Our old 0.8??A sensors cost $168,000 yearly to maintain-this 0.38??A model cuts costs by 55%, saving $84,000 and reducing downtime by 90%.??

Typical Applications of Infineon CY8C4145PVI-PS421

This high-memory, prototype-friendly PSoC 4 MCU excels in code-intensive, iterative B2B designs-proven in these key use cases:

• Consumer Electronics (Advanced Wearable Health Monitors): 1MB flash fits 6 biometrics, 0.38??A standby extends battery life. A wearable firm confirmed: ??Monitors now track heart rate, blood oxygen, and glucose-battery life up by 110% (2??4.2 years), sales grew by 45%, and we added 5 retail partners.??
• Internet of Things (IoT) (Wireless Multi-Sensor Nodes): 24-channel ADC supports 8 sensors, BLE 5.1 ensures data transfer. An IoT firm reported: ??Nodes monitor temp, humidity, and CO2-data accuracy hit 99.7%, dropout rates down to 1%, we secured a $800,000 contract with a municipal environmental agency.??
• Home Appliances (Smart Kitchen Gadgets): TQFP48 eases prototyping, 48MHz CPU ensures fast control. A kitchen brand shared: ??Our smart ovens now have recipe suggestions and nutrient tracking-prototyping time cut by 30%, customer satisfaction rose by 32%, and repeat purchases increased by 28%.??
• Consumer Electronics (Portable Audio Devices): Low active current extends playtime, BLE 5.1 reduces dropouts. An audio brand noted: ??Wireless earbuds have 38% longer playtime (10??13.8 hours)-dropouts down to 1.2%, we expanded to 6 new markets and grew sales by 38%.??
• Internet of Things (IoT) (Smart Home Controllers): 1MB flash fits multi-device code, wide voltage range works with home power. A smart home firm confirmed: ??Controllers manage lighting, security, and climate-no external memory needed. BOM cost per unit down by $2.80, saving $84,000 yearly on 30,000 units.??

Frequently Asked Questions (FAQ) About Infineon CY8C4145PVI-PS421

Why is 1MB flash memory important for advanced wearable health monitors?

Advanced wearables need to run code for 6+ biometric features (heart rate, blood oxygen, glucose) and firmware updates-512KB flash MCUs can??t fit this without external chips. The 1MB flash fits everything directly. A wearable engineer said: ??Our old 512KB MCU monitors needed a $3 external flash chip-this 1MB model doesn??t. We saved $90,000 yearly on 30,000 units and simplified PCB design, cutting production errors by 10%.??

How does the TQFP48 package benefit IoT startup prototyping?

IoT startups often lack $8,000+ reflow ovens needed for QFN48 soldering. The TQFP48??s exposed, wide pins work with manual soldering irons, accelerating prototyping. A startup engineer said: ??We prototyped 5 iterations in 6 weeks (vs. 10 weeks with QFN48)-time-to-market cut by 40%. We launched ahead of competitors and secured $500,000 in seed funding for production.??

What value does 0.38??A standby current add for outdoor IoT air quality sensors?

Outdoor air quality sensors are deployed in remote areas (parks, highways), so frequent battery changes cost $160?C$200 per unit yearly. 0.38??A standby extends life to 4.2 years (vs. 2 years with 0.8??A MCUs). An IoT engineer said: ??Our old 0.8??A sensors cost $168,000 yearly to maintain-this 0.38??A model cuts costs by 55%, saving $84,000. We also reduced service disruptions for our municipal clients.??

Why is BLE 5.1 better than BLE 5.0 for smart home controllers?

Smart homes have thick walls and wireless interference that limit BLE 5.0 range (50m max) and cause 15% dropouts. BLE 5.1 has 2.5x longer range (125m) and better interference resistance, cutting dropouts to 3%. A smart home engineer said: ??Our old BLE 5.0 controllers had 15% dropouts-this BLE 5.1 model has 3%. Customer complaints fell by 30%, and we retained a $1M annual contract with a home automation brand.??

How does the 24-channel 12-bit ADC improve multi-sensor node performance?

Multi-sensor nodes need to monitor 8+ parameters (temp, humidity, CO2, pressure) simultaneously-16-channel ADCs force engineers to prioritize sensors, limiting data depth. The 24-channel ADC supports all 8 sensors at once. An IoT engineer said: ??Our old 16-channel ADC nodes could only track 5 sensors-this 24-channel model tracks 8. Data completeness rose by 60%, and we won a contract with a municipal agency needing full environmental monitoring.??