CY8C4128LQI-BL553T Overview
The CY8C4128LQI-BL553T is a highly integrated programmable system-on-chip (PSoC) microcontroller designed for robust embedded control and communication applications. Featuring advanced analog and digital resources, this device streamlines system design by combining programmable logic, a powerful ARM? Cortex?-M0 core, and Bluetooth Low Energy (BLE) connectivity within a compact 68-VFQFN package. Its versatile configuration and low power operation make it an ideal choice for industrial, consumer, and IoT solutions. For more details, visit IC Manufacturer.
CY8C4128LQI-BL553T Technical Specifications
| Parameter | Value |
|---|---|
| Core Processor | ARM? Cortex?-M0 |
| Program Memory Size | 128KB (128K x 8) |
| RAM Size | 16KB (16K x 8) |
| Operating Voltage Range | 1.71V ~ 5.5V |
| Interface | I2C, IrDA, LINbus, SPI, UART/USART |
| Connectivity | Bluetooth Low Energy (BLE) 4.2 |
| Package / Case | 68-VFQFN Exposed Pad |
| Operating Temperature | -40??C ~ 85??C (TA) |
| Mounting Type | Surface Mount |
CY8C4128LQI-BL553T Key Features
- Integrated ARM Cortex-M0 core delivers efficient processing for embedded control, supporting real-time responsiveness and low power consumption.
- 128KB programmable flash memory enables storage of complex firmware and application code, providing flexibility for updates and feature expansion.
- Bluetooth Low Energy (BLE) 4.2 compliant radio facilitates secure, wireless connectivity for IoT, wearable, and industrial automation solutions.
- Rich analog and digital peripherals, including I2C, SPI, UART, and more, simplify system integration and reduce overall component count.
- Wide operating voltage range from 1.71V to 5.5V supports versatile power supply options and enhances compatibility across various designs.
- Compact 68-pin VFQFN package with exposed pad ensures excellent thermal performance and optimal PCB space utilization.
CY8C4128LQI-BL553T Advantages vs Typical Alternatives
This device stands out among programmable system-on-chip solutions by combining a highly efficient ARM Cortex-M0 core, robust BLE 4.2 connectivity, and comprehensive analog/digital peripherals in a single package. Its extended voltage range, generous memory resources, and advanced integration reduce design complexity, maximize reliability, and enable rapid development compared to standard microcontrollers and discrete radio solutions.
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Typical Applications
- Wireless sensor networks: The embedded BLE radio and multiple serial interfaces make this device ideal for industrial and environmental monitoring nodes that require reliable short-range connectivity and secure data collection.
- Smart home and building automation: Suitable for managing lighting, HVAC, and security systems, leveraging its integrated analog/digital peripherals and wireless capabilities for seamless control.
- Wearable technology: The low power architecture and compact package support applications in fitness tracking, health monitoring, and personal safety devices.
- Remote controls and human-machine interfaces: Its flexible interface options and programmable logic enable responsive, feature-rich input devices for consumer and industrial products.
CY8C4128LQI-BL553T Brand Info
The CY8C4128LQI-BL553T is part of a trusted family of PSoC microcontrollers, known for integrating programmable analog and digital logic with a reliable ARM Cortex-M0 core and BLE 4.2 radio. It is widely recognized for enabling rapid prototyping and deployment in embedded and wireless designs, providing a flexible platform for developers seeking robust connectivity, high integration, and proven performance in demanding environments.
FAQ
What type of applications benefit most from using the CY8C4128LQI-BL553T?
This device is particularly well-suited for applications requiring a blend of embedded control and wireless connectivity, such as IoT nodes, industrial monitoring, smart home devices, and wearables. Its integration of BLE and programmable logic enables faster development and reliable operation in these scenarios.
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How does the BLE 4.2 integration enhance system design?
With built-in BLE 4.2 functionality, the device eliminates the need for external wireless modules, reducing board space and power consumption. This integration facilitates secure, standards-compliant wireless communication, streamlining the implementation of connected systems.
What is the primary advantage of the 68-VFQFN package?
The 68-VFQFN package provides a high pin count in a small footprint with an exposed pad for efficient heat dissipation. This allows for compact PCB layouts and stable operation even in thermally constrained environments.
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Can the CY8C4128LQI-BL553T operate in harsh environments?
Yes, the device is rated for operation from -40??C to 85??C, making it suitable for deployment in industrial and outdoor environments where reliable performance across a wide temperature range is critical.
What development flexibility does the programmable flash memory offer?
With 128KB of flash memory, developers can implement complex firmware, enable future feature updates, and store application-specific data, all within a single device. This flexibility simplifies both initial development and long-term product maintenance.





