STM32L152R6T6 Tech Specifications
STMicroelectronics - STM32L152R6T6 technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - STM32L152R6T6

Product Attribute	Attribute Value
Part Number	STM32L152R6T6
Package	LQFP-64(10x10)
Description	LQFP-64(10x10)
Stock Condition	Get 17300 pcs available quantity at Allelco
Payment	PayPal / TT / Credit Card / Western Union
Allelco Certifications	ESD / ISO 9001 / ISO 13485 / ISO 28000

Product Attribute	Attribute Value
Manufacturer	STMicroelectronics
RoHs Status	-
Warranty	100% Perfect Functions
Transport port	Hong Kong
Shipping by	DHL / FedEx / UPS / TNT / SF Express
RFQ Email	info@allelco.com

Parts Introduction

Manufacturer Part Number

STM32L152R6T6

Manufacturer

stmicroelectronics

Introduction

The STM32L152R6T6 is a high-performance, low-power 32-bit microcontroller based on the ARM Cortex-M3 core. It offers a range of advanced peripherals and features, making it a versatile choice for a wide variety of embedded applications.

Product Features and Performance

ARM Cortex-M3 32-bit core running at up to 32MHz

32KB of FLASH memory and 10KB of RAM

Integrated 12-bit ADC with 20 channels and 12-bit DAC with 2 channels

Variety of communication interfaces including I2C, SPI, UART/USART, and USB

Integrated peripheral features such as DMA, LCD, and capacitive sensing

Low-power modes for efficient power management

Product Advantages

Excellent performance-to-power ratio for energy-efficient operation

Comprehensive peripheral set for diverse application requirements

Flexible configuration options for custom design implementation

Long-term product availability and support from a leading semiconductor manufacturer

Key Reasons to Choose

Powerful 32-bit ARM Cortex-M3 core for demanding embedded applications

Extensive peripheral integration to reduce external component count

Low-power modes for extended battery life in portable devices

Reliable and well-supported product from a trusted industry leader

Quality and Safety Features

Robust design and manufacturing process for high reliability

Extensive safety and protection features, including brown-out detection and reset

Compliance with various industry standards and certifications

Compatibility

The STM32L152R6T6 is compatible with the STM32L1 series of microcontrollers, allowing for easy migration and reuse of existing software and hardware designs.

Application Areas

Industrial automation and control systems

Medical devices and healthcare equipment

Portable consumer electronics and wearables

Building automation and smart home applications

Automotive and transportation systems

Product Lifecycle

The STM32L152R6T6 is an active product in the STM32L1 series. While there are no direct equivalent models, there are several alternative STM32L1 series microcontrollers with similar features and performance. Customers are advised to contact our website's sales team for the latest product information and availability.

Frequently Asked Questions(FAQ)

How does the STM32L152R6T6 compare to other STM32L1 series microcontrollers in terms of power efficiency and memory capacity for battery-powered IoT applications?: The STM32L152R6T6 offers a balanced combination of 32KB Flash, 10KB RAM, and 4KB EEPROM, which is typical for mid-range STM32L1 devices. When compared to lower-end models like the STM32L151R6, it maintains the same core architecture but with slightly higher peripheral integration, enabling more complex tasks without sacrificing the ultra-low-power benefits of the L1 series. Its 1.8V to 3.6V operating range and support for multiple low-power modes make it suitable for extended battery life in sensor nodes or wearables, where energy per instruction cycle is critical.

Can the STM32L152R6T6 be used in USB-based applications, and what are the design considerations for stable operation?: Yes, the STM32L152R6T6 includes a built-in USB 2.0 full-speed controller, enabling direct USB device or host functionality without external components. However, achieving reliable USB communication requires careful attention to clock accuracy—the internal 48 MHz RC oscillator must be calibrated using the factory-trimmed value. Additionally, proper PCB layout with impedance-controlled D+/D- lines, adequate decoupling near the VDDUSB pin, and adherence to USB ESD protection standards are essential to meet USB compliance and ensure robust data transfer in embedded environments.

What is the impact of temperature on the STM32L152R6T6’s ADC performance across its industrial operating range?: The STM32L152R6T6 features a 12-bit successive approximation register (SAR) ADC with 20 channels, capable of 1 Msps sampling under ideal conditions. Over its full operating temperature range of -40°C to 85°C, internal reference voltage drift may affect absolute accuracy by up to ±2 mV. For precision measurements, external bandgap references or periodic calibration routines should be implemented. In contrast, lower-temperature environments may increase conversion latency due to slower internal logic, though this is typically negligible in most industrial sensing applications.

How does the STM32L152R6T6 handle brown-out detection and reset sequencing during power-up?: The microcontroller integrates a programmable brown-out reset (BOR) circuit that monitors VDD and triggers a system reset if voltage drops below a user-defined threshold, typically set between 1.95V and 2.7V depending on the selected BOR level. This ensures stable startup even under fluctuating supply conditions. Combined with a power-on reset (POR) and an independent watchdog (IWDG), the STM32L152R6T6 provides robust fault recovery. Designers can configure the BOR using the option bytes to balance power savings against reliability in noisy industrial settings.

Is the STM32L152R6T6 suitable for capacitive touch sensing, and what hardware components are required?: Yes, the STM32L152R6T6 supports capacitive touch via its integrated analog front end and DMA-capable peripherals. It can drive up to 24 electrodes using the Touch Sensing Controller (TSC), allowing implementation of touch buttons, sliders, or wheel interfaces. To implement this, external guard rings and sensor plates must be connected to dedicated TSC pins, with careful layout to minimize noise coupling. A simple RC timing method or charge-transfer algorithm can be run from firmware, leveraging the low-power sleep modes to maintain energy efficiency while detecting touch events.

What are the key differences between using the internal oscillator versus an external crystal on the STM32L152R6T6?: The STM32L152R6T6 includes a calibrated 16 MHz internal RC oscillator, accurate to within ±1% over temperature and voltage. While sufficient for many applications, it introduces timing uncertainty in time-critical protocols like USB or high-speed UART baud rates. An external 8–32 MHz crystal improves frequency stability and reduces long-term drift. However, using an external oscillator increases board space, cost, and power consumption slightly. For USB applications, an external 48 MHz oscillator with precise 0.25% tolerance is strongly recommended to meet USB timing specifications.

How much current does the STM32L152R6T6 consume in Run mode at 32 MHz, and what factors influence this?: At 32 MHz and 3.3V supply, the STM32L152R6T6 typically draws around 2.5 mA from the main regulator in Run mode, based on STMicroelectronics’ characterization data. This current scales linearly with clock speed and voltage, so reducing frequency or using dynamic voltage scaling can significantly lower power. Additional sources of consumption include enabled peripherals such as the USB module (~100 µA) and active ADC conversions (~200 µA at 1 Msps). Proper peripheral gating and use of Sleep or Stop modes can reduce average current to tens of microamps in battery-operated systems.

Can the STM32L152R6T6 interface with LCD displays, and what limitations apply?: Yes, the STM32L152R6T6 includes an integrated LCD controller supporting up to 8 segments or 4 commons with built-in charge pump, enabling direct drive of low-to-mid complexity alphanumeric displays without external drivers. Maximum supported voltage is 3.6V, and contrast control is managed internally. However, complex graphics or high-segment-count panels require external driver ICs. The LCD peripheral can operate in Stop mode, preserving display content during deep sleep, which enhances power efficiency in portable devices like medical monitors or fitness trackers.

What development tools and programming environments fully support the STM32L152R6T6?: The STM32L152R6T6 is supported by STMicroelectronics’ STM32CubeIDE, which includes HAL/LL libraries optimized for low-power operation. Third-party support exists in Keil MDK, IAR Embedded Workbench, and Segger Embedded Studio. Firmware can be programmed via SWD or JTAG using ST-Link or compatible debug probes. STM32CubeMX facilitates peripheral configuration and generates initialization code, while STM32CubeProgrammer enables flash programming and option byte setting. All major toolchains support C/C++ development with real-time debugging capabilities.

How does the STM32L152R6T6 perform in electromagnetic interference (EMI) environments, and what design practices mitigate risks?: As a standard 32-bit MCU, the STM32L152R6T6 does not have enhanced EMI immunity beyond typical CMOS logic levels. To improve robustness, designers should minimize trace lengths, use ground planes, and decouple all power rails with 100 nF ceramic capacitors. Clock signals should be routed away from sensitive analog inputs, and unused I/Os should be tied to safe states. Shielding enclosures and filtering on communication lines (especially USB and LIN) further reduce susceptibility. Compliance testing should follow IEC 61000-4 standards when deploying in industrial or automotive edge cases.

What is the maximum number of software timers that can be practically implemented on the STM32L152R6T6 using its PWM and timer peripherals?: The STM32L152R6T6 contains three general-purpose timers (TIM2–TIM4), one advanced-control timer (TIM1), and one basic timer (TIM5), each offering multiple output compare or input capture channels. With careful resource allocation, up to 12 independent software-managed timers can be emulated using interrupt-driven tick counters. However, excessive use of interrupts degrades performance and increases power consumption. For deterministic timing, hardware timers are preferred. Only one timer can drive USB SOF (start-of-frame) generation, limiting concurrent high-resolution tasks.

Does the STM32L152R6T6 support over-the-air (OTA) firmware updates, and what security considerations apply?: Native OTA update capability is not provided by the hardware alone; it requires implementing a bootloader with protocol stack (e.g., BLE, LoRaWAN, or cellular modem interface) and secure storage management. The STM32L152R6T6’s Flash memory allows splitting into application and bootloader regions, with option bytes protecting write access. However, without hardware cryptographic acceleration, encryption must be handled in software, increasing execution time and vulnerability to side-channel attacks. Secure key storage and integrity checks using CRC or lightweight MAC algorithms are recommended before writing new firmware.

How does the EEPROM emulation feature work on the STM32L152R6T6, and what endurance applies?: The STM32L152R6T6 has no physical EEPROM, but uses Flash sectors to emulate non-volatile data storage. The emulated EEPROM block typically resides in a dedicated Flash sector, with write cycles limited to ~10,000 cycles per cell. Data is stored in pages, and wear leveling algorithms must be implemented in firmware to distribute writes evenly across sectors. For 4KB of emulated EEPROM with 1KB pages and 10,000 cycle endurance, this equates to approximately 40 million total writes assuming uniform usage. Applications requiring higher endurance should batch writes or use external FRAM.

What is the correct way to configure the STM32L152R6T6 for lowest power consumption in a periodic wake-up sensor node?: To achieve minimum power, configure the MCU to enter Stop mode after peripheral initialization, disable unused clocks, and use the RTC or LSI oscillator for wake-up timing. During Stop mode, only SRAM and backup registers retain state, drawing as little as 0.45 µA at 25°C. Use the internal voltage regulator in low-power mode and ensure all GPIOs are configured as analog inputs or high-impedance outputs. Wake-up can occur from external interrupts (e.g., sensor detect) or timed RTC alarms. This strategy enables multi-year battery life in duty-cycled wireless nodes.

Can the STM32L152R6T6 drive motors directly, and what additional circuitry is needed?: The STM32L152R6T6 lacks high-current motor drivers, so it cannot directly power motors. Instead, it can generate PWM signals to control external MOSFETs or H-bridge ICs like the DRV8871 or L298N. Gate drivers require level shifting if using 3.3V logic, and flyback diodes must protect against inductive spikes. Motor current should be sensed via shunt resistors and fed back to the ADC for closed-loop control. This approach allows precise speed and direction control in small robotics or automation systems while preserving MCU safety.

What are the implications of using the STM32L152R6T6 in a product subject to FCC or CE certification?: Since the STM32L152R6T6 itself is not a radio transmitter, it does not require individual RF certification. However, if the final product includes wireless interfaces (e.g., USB dongle, Bluetooth, or proprietary RF), the entire system must comply with FCC Part 15 or RED directives. The MCU’s digital switching edges and clock harmonics can radiate emissions if poorly laid out. Minimize loop areas, use spread-spectrum clocks if available, and ensure shielding of high-speed traces. Always perform pre-compliance testing early in development to avoid costly redesigns.

How does the DMA controller in the STM32L152R6T6 improve system responsiveness during ADC or UART transfers?: The STM32L152R6T6 integrates a 7-channel DMA controller that offloads data movement between peripherals and memory, freeing the Cortex-M3 CPU for other tasks. For example, continuous ADC sampling at 1 Msps can stream directly to RAM without CPU intervention, maintaining timing precision. Similarly, UART transmit/receive buffers can be filled/refilled automatically, preventing overflow in high-bandwidth serial links. This reduces interrupt frequency and jitter, improving real-time performance in data acquisition systems or communication gateways.

What is the recommended PCB footprint and thermal management strategy for the STM32L152R6T6 in mass production?: The STM32L152R6T6 uses a 64-pin LQFP package (10x10 mm), requiring a standardized 0.5 mm pitch footprint with 6x6 thermal pad underneath for heat dissipation. Although the device is not high-power (>100 mW), proper thermal vias under the package improve solder joint reliability and reduce warpage risk during reflow. Ensure adequate copper pours connected to GND and avoid routing high-current paths near signal pins. Following IPC-7351 guidelines for land pattern dimensions enhances manufacturability and reduces defects in automated assembly lines.

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Customer Reviews

Evaluation: 10 Articles

Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.
Yuki***aka88

May 26, 2026

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。
Stev***aker

May 20, 2026

Solid diode for power rectification. Works well in switching circuits.
Bran***Lewis

May 11, 2026

Compact FPGA with good performance. Suitable for basic signal processing tasks.
Oliv***arris

May 7, 2026

Reliable I/O expander. Works well in embedded control applications.
Jess***Jones

Apr 17, 2026

It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.
Mich***Smith

Apr 17, 2026

Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.
Aman***arris

Apr 3, 2026

It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.
Mike***nch

Apr 3, 2026

Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.
Daic***K.

Mar 23, 2026

Very good. No issue after long time testing.

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Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

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STM32L152R6T6

STMicroelectronics
41D-STM32L152R6T6

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STM32L152R6T6 - STMicroelectronics

Specifications

Parts Introduction

Manufacturer Part Number

Manufacturer

Introduction

Product Features and Performance

Product Advantages

Key Reasons to Choose

Quality and Safety Features

Compatibility

Application Areas

Product Lifecycle

Frequently Asked Questions(FAQ)

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

Solid diode for power rectification. Works well in switching circuits.

Compact FPGA with good performance. Suitable for basic signal processing tasks.

Reliable I/O expander. Works well in embedded control applications.

It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

Very good. No issue after long time testing.

Write a Review

Shipment

Delivery Time

Delivery Cost

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QC (Quality Warranty)

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Packaging

Electrostatic Discharge Protection and Handling

Certifications & Memberships

STM32L152R6T6

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Please refer to the English Version as our Official Version.