STM32L452VCT6 - Ultra-Low-Power ARM Cortex-M4 MCU | STMicroelectronics
MPN: STM32L452VCT6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $6.12 | $3,060.00 |
| 1,000 | $5.44 | $5,440.00 |
Drop-in alternatives for STM32L452VCT6 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
STM32L452VET6
β Drop-Inπ Reference alternative (not in catalog)
STM32L462VCT6
β Drop-Inπ Reference alternative (not in catalog)
STM32L476VGT6
β‘ Same Packageπ Reference alternative (not in catalog)
LPC54S60JBD100
β‘ Same Packageπ Reference alternative (not in catalog)
R7FA4M1AB3CFM#AA0
β‘ Same Packageπ Reference alternative (not in catalog)
STM32L452VCT6 Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M4 with FPU |
| Max Frequency | 80 MHz |
| Flash Memory | 256 KB |
| SRAM | 160 KB |
| Operating Voltage | 1.71 V to 3.6 V |
| GPIO Pins | 51 |
| ADC | 12-bit, 5 Msps, 16 channels |
| DAC | 2 x 12-bit |
| Communication Interfaces | I2C, SPI, USART, UART, LPUART, SAI, CAN, USB 2.0 FS |
| Package | LQFP-100 (14x14 mm) |
| Operating Temperature | -40C to +85C |
| Supply Current (Stop 2) | 28 Β΅A (typ) |
| Supply Current (Run) | 84 Β΅A/MHz (typ) |
| RTC | Yes, with calendar and alarm |
| LCD Driver | 8x40 segments |
| RoHS Status | Compliant |
STM32L452VCT6 Pin Configuration
| Pin 1 | PE2 β GPIO or alternate function |
| Pin 2 | PE3 β GPIO or alternate function |
| Pin 3 | PE4 β GPIO or alternate function |
| Pin 4 | PE5 β GPIO or alternate function |
| Pin 5 | PE6 β GPIO or alternate function |
| Pin 6 | VBAT β Backup battery supply |
| Pin 7 | PC13 β GPIO or RTC output |
| Pin 8 | PC14 β GPIO or OSC32_IN |
| Pin 9 | PC15 β GPIO or OSC32_OUT |
| Pin 10 | PF0 β GPIO or OSC_IN |
| Pin 11 | PF1 β GPIO or OSC_OUT |
| Pin 12 | NRST β Reset (active low) |
| Pin 13 | PC0 β GPIO or ADC input |
| Pin 14 | PC1 β GPIO or ADC input |
| Pin 15 | PC2 β GPIO or ADC input |
| Pin 16 | PC3 β GPIO or ADC input |
| Pin 17 | VDD β Digital power supply |
| Pin 18 | VSS β Ground |
| Pin 19 | PC4 β GPIO or ADC input |
| Pin 20 | PC5 β GPIO or ADC input |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
STM32L452VCT6 is suitable for 6 applications: Industrial Sensors, Smart Meters, Healthcare Devices, Wearable Fitness Trackers, IoT Edge Nodes, Portable Test and Measurement.
Industrial Sensors
The STM32L452VCT6 is ideal for industrial sensors that require low power consumption and high accuracy. Its 12-bit ADC with 5 Msps sampling rate enables precise measurement of analog signals from temperature, pressure, and flow sensors. The multiple low-power modes allow the device to sleep between measurements, extending battery life in wireless sensor nodes. The rich communication interfaces (I2C, SPI, UART) facilitate connection to external transceivers for data transmission. The Cortex-M4 with FPU accelerates signal processing algorithms, such as digital filtering and calibration. The wide operating voltage range (1.71V-3.6V) accommodates various power sources, including energy harvesting. The device's robust design and industrial temperature range (-40C to +85C) ensure reliable operation in harsh environments. The integrated DMA controller offloads the CPU during data transfers, improving overall system efficiency. The STM32L452VCT6 also supports firmware updates over the air, enabling remote maintenance of deployed sensors. Its small footprint and low BOM cost make it a cost-effective choice for high-volume industrial applications.
Recommended
Smart Meters
The STM32L452VCT6 is well-suited for smart metering applications, such as electricity, water, and gas meters. Its ultra-low-power modes enable long battery life, often exceeding 10 years in typical metering applications. The integrated LCD driver supports direct connection to segment LCDs for displaying consumption data, eliminating the need for an external display driver. The 12-bit ADC and analog comparators are used for accurate measurement of voltage and current in electricity meters. The device's communication interfaces, including UART and LPUART, allow connection to PLC modems or RF transceivers for remote data collection. The RTC with calendar and alarm functions provides accurate time-stamping of meter readings. The STM32L452VCT6's security features, such as read-out protection and a unique ID, help prevent tampering and unauthorized access. The wide operating voltage range and low power consumption make it compatible with battery-backed power supplies. The device's high integration reduces the overall component count, lowering manufacturing costs. The Cortex-M4 core with FPU enables efficient implementation of metering algorithms, such as energy calculation and power quality analysis. The STM32L452VCT6 also supports firmware updates via the communication interface, allowing remote upgrades of metering software.
Recommended
Healthcare Devices
The STM32L452VCT6 is an excellent choice for healthcare devices such as portable patient monitors, glucose meters, and pulse oximeters. Its ultra-low-power operation extends battery life, which is critical for wearable and portable medical devices. The integrated operational amplifiers and comparators can be used for signal conditioning of biosignals, such as ECG and EEG. The 12-bit ADC with high sampling rate captures physiological signals with sufficient resolution. The device's multiple communication interfaces enable data transfer to smartphones or cloud platforms via Bluetooth or Wi-Fi modules. The Cortex-M4 with FPU and DSP instructions supports real-time signal processing, such as heart rate variability analysis. The device's security features, including a true random number generator and memory protection unit, help protect patient data. The wide operating voltage range allows direct battery operation from a single lithium cell. The STM32L452VCT6's small package and low power consumption make it suitable for compact, wearable designs. The device also supports firmware updates, enabling feature enhancements and bug fixes in the field. The integrated LCD driver can be used to display vital signs on a small segment LCD, reducing component count.
Recommended
Wearable Fitness Trackers
The STM32L452VCT6 is ideal for wearable fitness trackers that require long battery life and small form factor. Its ultra-low-power modes, including Stop 2 with 28 Β΅A current consumption, allow the device to operate for weeks on a small battery. The integrated sensors, such as accelerometers and gyroscopes, can be connected via I2C or SPI. The Cortex-M4 with FPU enables efficient processing of sensor data for activity recognition and step counting. The device's multiple timers can be used to generate precise timing for sampling and event detection. The integrated LCD driver can drive a small segment display for showing time and activity stats. The USB 2.0 interface allows for charging and data transfer to a host computer. The device's small LQFP-100 package and low power consumption make it suitable for compact wearable designs. The STM32L452VCT6 also supports Bluetooth Low Energy via an external module, enabling wireless synchronization with smartphones. The device's security features, such as read-out protection, help protect user data. The wide operating voltage range allows direct battery operation from a coin cell or small lithium polymer battery. The device's rich peripheral set reduces the need for external components, lowering BOM cost.
Recommended
IoT Edge Nodes
The STM32L452VCT6 is a powerful choice for IoT edge nodes that require local processing and low power consumption. Its Cortex-M4 core with FPU and DSP instructions enables on-device machine learning and signal processing, reducing the need to send raw data to the cloud. The device's multiple low-power modes allow it to sleep between sensor readings, conserving battery power. The rich communication interfaces, including Wi-Fi and LoRa modules, enable reliable connectivity to the cloud. The integrated ADC and DAC allow direct interfacing with analog sensors and actuators. The device's security features, such as a true random number generator and memory protection unit, help secure data transmission. The STM32L452VCT6's wide operating voltage range and low power consumption make it suitable for battery-powered or energy-harvesting IoT devices. The device's small package and high integration reduce the overall system size and cost. The STM32L452VCT6 also supports over-the-air firmware updates, enabling remote maintenance and feature updates. The device's rich peripheral set, including timers, UART, SPI, and I2C, simplifies interfacing with various sensors and actuators. The Cortex-M4 with FPU accelerates edge computing tasks, such as anomaly detection and data fusion.
Recommended
Portable Test and Measurement
The STM32L452VCT6 is well-suited for portable test and measurement instruments, such as handheld multimeters, oscilloscopes, and data loggers. Its high-speed 12-bit ADC (5 Msps) enables accurate sampling of analog signals. The integrated DAC can be used for waveform generation or calibration. The device's multiple timers provide precise timing for measurement and triggering. The Cortex-M4 with FPU accelerates signal processing algorithms, such as FFT and digital filtering. The device's low power consumption extends battery life in portable instruments. The rich communication interfaces, including USB, allow data transfer to a PC for analysis. The integrated LCD driver can display measurement results on a segment LCD. The device's wide operating voltage range and industrial temperature range ensure reliable operation in various environments. The STM32L452VCT6's small package and high integration reduce the size and weight of portable instruments. The device also supports firmware updates, allowing feature enhancements in the field. The integrated operational amplifiers and comparators can be used for signal conditioning. The device's security features, such as read-out protection, help protect proprietary measurement algorithms.
Recommended
Recommended Products Summary
Engineering reference data for STM32L452VCT6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32L452VET6 | STM32L462VCT6 | STM32L476VGT6 | LPC54S60JBD100 |
|---|---|---|---|---|---|
| Package | LQFP-100 | LQFP-100 | LQFP-100 | LQFP-100 | LQFP-100 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors |
| Core | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4F |
| Max Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 180 MHz |
| Flash Memory | 256 KB | 512 KB | 256 KB | 1 MB | 256 KB |
| SRAM | 160 KB | 160 KB | 160 KB | 128 KB | 256 KB |
| Operating Voltage | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V |
| ADC | 12-bit, 5 Msps, 16 channels | 12-bit, 5 Msps, 16 channels | 12-bit, 5 Msps, 16 channels | 12-bit, 5 Msps, 16 channels | 12-bit, 1 Msps, 16 channels |
| USB | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS | USB 2.0 FS | USB 2.0 HS |
Key Differentiators
- Ultra-low-power Stop 2 mode with 28 Β΅A current consumption (vs STM32L476VGT6)
- Integrated LCD driver supporting up to 8x40 segments (vs LPC54S60JBD100)
- True random number generator (TRNG) for enhanced security (vs STM32L452VET6)
Design Notes
For optimal power efficiency, use the internal LDO or connect an external SMPS step-down converter to the VDD pins. Place a 100 nF decoupling capacitor close to each VDD pin and a 4.7 Β΅F capacitor on the main VDD rail. In low-power modes, ensure that the voltage regulator is configured correctly (e.g., in Stop 2 mode, the regulator is in low-power mode).
For the LQFP-100 package, ensure proper soldering with a 0.5 mm pitch. Use a 4-layer PCB with a solid ground plane for best EMC performance. Keep analog and digital grounds separate and connect them at a single point. Place the crystal oscillator close to the OSC_IN/OSC_OUT pins and add load capacitors as specified in the datasheet.
Do not leave unused GPIO pins floating; configure them as analog inputs to minimize leakage current. Ensure the VBAT pin is connected to a backup battery or tied to VDD if not used. When using the ADC, avoid sampling during high-current switching events to reduce noise. Also, verify that the supply voltage does not exceed the absolute maximum rating of 3.6 V.
Compliance Information
RoHS compliant per ST product page. Not AEC-Q100 qualified; for automotive, consider STM32L452VCT6 with extended temperature range or other automotive-grade variants.
