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STMicroelectronics STM32L152RCT6TR

Name: STM32L152RCT6TR
Brand: STMicroelectronics
SKU: STM32L152RCT6TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32L152RCT6TR

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 64-LQFP

Datasheet:: STM32L152RCT6TR.pdf

Description:: IC MCU 32BIT 256KB FLASH 64LQFP

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Product details

Overview

STM32L152RCT6TR from STMicroelectronics is an ultra-low-power 32-bit ARM® Cortex®-M3 microcontroller featuring 256 KB Flash, 32 KB SRAM, 8 KB EEPROM with ECC, integrated LCD controller (8×40 segments), and USB 2.0 interface. It operates from 1.65 V to 3.6 V across –40 °C to +105 °C and delivers 1.25 DMIPS/MHz at up to 32 MHz - deployed in battery-powered medical sensors, portable industrial loggers, and smart utility meters requiring long-term autonomous operation.

For engineers reviewing the STM32L152RCT6TR datasheet, STM32L152RCT6TR pinout, STM32L152RCT6TR application, or STM32L152RCT6TR equivalent, key selection criteria include standby current (0.29 µA), RTC-enabled stop mode (1.4 µA), 12-bit dual-channel DAC with buffers, 12-bit 1 Msps ADC (25 channels), and 70 I/Os with 5V tolerance - all critical for energy-constrained embedded designs with analog sensing, human interface, and USB connectivity.

Technical Context

This MCU implements dynamic voltage scaling and multiple low-power modes (Run, Sleep, Low-power Run, Stop, Standby) with sub-µA retention states. Its Cortex-M3 core includes a Memory Protection Unit (MPU), while the system-level power architecture integrates programmable voltage detector (PVD), ultra-safe BOR with five thresholds, and independent POR/PDR.

Analog subsystem integration includes two rail-to-rail op-amps, two ultra-low-power comparators (with window mode and wake-up capability), temperature sensor, internal VREFINT, and LCD driver with step-up converter - enabling direct sensor signal conditioning and display control without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
Core	ARM Cortex-M3, 32-bit, up to 32 MHz - enables deterministic real-time control with 1.25 DMIPS/MHz performance density.
Memory	256 KB Flash (ECC), 32 KB SRAM, 8 KB EEPROM (ECC) - supports firmware robustness, data logging integrity, and parameter storage across power cycles.
Power Modes	0.29 µA Standby (3 wakeup pins), 1.4 µA Stop + RTC - extends battery life to years in intermittent-sensing applications.
Analog Peripherals	12-bit ADC (1 Msps, 25 channels), 12-bit DAC (2 ch, buffered), 2 op-amps, 2 comparators - enables high-fidelity sensor acquisition and analog output generation on-chip.
Connectivity	USB 2.0 FS (48 MHz PLL), 3x USART, up to 8x SPI (incl. 2x I2S), 2x I2C - supports host communication, wireless module interfacing, and audio/data streaming.
I/O & Timing	70 I/Os (5V tolerant), 11 timers (incl. 1x 32-bit, 6x 16-bit PWM-capable), 23 capacitive sensing channels - supports complex peripheral control and touch HMI without external controllers.
Package	LQFP64 (10 × 10 mm, 0.5 mm pitch) - provides mechanical reliability and hand-solderability for industrial PCB assembly.

Pinout & Package

LQFP64 package with exposed thermal pad (ECOPAD™), 10 × 10 mm body, 0.5 mm lead pitch, and standard JEDEC-compliant footprint - optimized for thermal dissipation and automated reflow compatibility in space-constrained designs.

Pin/Terminal	Circuit Role	Design Meaning
VDD, VDDA, VDDIO2	Power supply inputs	Separate domains for digital core (VDD), analog (VDDA), and I/O bank 2 (VDDIO2) - enable precise noise isolation and flexible voltage sequencing.
VSS, VSSA	Ground returns	Dedicated analog ground (VSSA) minimizes coupling into ADC/DAC paths; digital ground (VSS) handles switching noise.
PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15	General-purpose I/Os	70 total GPIOs, 5V-tolerant on most ports - simplify level-shifting in mixed-voltage systems and reduce BOM cost.
NRST	Active-low reset input	Asynchronous reset with Schmitt trigger - ensures reliable deassertion under noisy conditions and brownout recovery.
BOOT0	Boot mode selection	Configures boot source (system memory, Flash, or SRAM) at power-on - essential for bootloader execution and field firmware updates.
USB_DP / USB_DM	USB 2.0 full-speed differential pair	Integrated transceivers with internal pull-ups - eliminate external PHY and reduce layout complexity for USB device-class implementations.

Key Features

Feature	Design Value
Ultra-low-power operation	0.44 µA Stop mode (16 wakeup lines) and 8.6 µA Low-power run mode - enables multi-year battery life in always-on sensor nodes.
On-chip LCD driver	Supports up to 8×40 segment displays with contrast adjustment and blinking - eliminates external LCD controller in portable instrumentation.
ECC-protected memories	256 KB Flash and 8 KB EEPROM with error correction - prevents silent data corruption in safety-critical or long-duration deployments.
Capacitive touch sensing	23-channel hardware-accelerated CTS - enables robust touch buttons/sliders without CPU overhead or external ICs.
Pre-programmed USB/USART bootloader	Factory-loaded ROM bootloader - allows firmware updates over USB or UART without JTAG debugger, reducing production test complexity.

Applications

Wearable Health Monitor

Smart Gas Meter

Use Scenario: Continuous ECG/PPG signal acquisition, local processing, and Bluetooth LE transmission in coin-cell-powered wristband.

IC Role / Device Role / Timing Role: Main controller managing analog front-end (ADC + op-amps), real-time sensor fusion, USB charging detection, and RTC-based sampling scheduling.

Use Value: Sub-µA standby and 1.4 µA Stop+RTC enable >2-year battery life; integrated DAC calibrates sensor bias; 5V-tolerant I/O interfaces directly with legacy peripherals.

Use Scenario: Battery-operated ultrasonic gas flow meter with pressure/temperature compensation, pulse output, and optical port for utility readout.

IC Role / Device Role / Timing Role: System-on-chip handling ultrasonic time-of-flight measurement, analog sensor conditioning (op-amps + ADC), LCD display, and optical IR communication stack.

Use Value: 12-bit dual DAC drives precision current sources for sensor excitation; LCD controller drives 4-digit segmented display without external driver; ECC EEPROM stores calibration coefficients securely.

Industrial Data Logger

Portable Handheld Tester

Use Scenario: Ruggedized field instrument recording vibration, temperature, and humidity at configurable intervals, storing data to microSD via SPI.

IC Role / Device Role / Timing Role: Central data acquisition engine with simultaneous multi-channel ADC sampling, timestamping via RTC, and SPI master for SD card and external flash.

Use Value: 25-channel ADC supports concurrent sensor inputs; 8 KB EEPROM retains configuration and calibration across power loss; 10 nA I/O leakage prevents parasitic discharge in high-impedance sensor circuits.

Use Scenario: Battery-powered handheld tester for HVAC commissioning, measuring thermocouple, RTD, and 4–20 mA loop signals with graphical LCD feedback.

IC Role / Device Role / Timing Role: Analog-intensive controller performing cold-junction compensation, RTD linearization, loop powering, and 8×40 LCD rendering.

Use Value: Integrated op-amps condition thermocouple outputs; dual DAC generates precise reference voltages; LCD step-up converter powers display from single Li-ion cell.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power ARM Cortex-M3 microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32L072RBT6	Lower memory (128 KB Flash, 20 KB RAM), no LCD driver, no DAC, but lower active current (116 µA/MHz)	Suitable for simpler sensor nodes without display or analog output needs	Select when display and DAC are unnecessary and lowest possible active power is prioritized over feature count.
STM32L432KCU6	Cortex-M4F core, 256 KB Flash, 64 KB SRAM, no EEPROM, no LCD, but includes FPU and higher clock (80 MHz)	Better for floating-point math (e.g., FFT-based spectral analysis) but lacks integrated display and EEPROM	Choose when computational throughput outweighs analog integration and nonvolatile parameter storage requirements.

Compared with STM32L152RCT6TR, STM32L072RBT6 trades analog and display features for lower active power, while STM32L432KCU6 upgrades compute capability at the expense of EEPROM and LCD - making the L152 optimal for display-equipped, EEPROM-dependent, ultra-low-quiescent industrial devices.

Availability

STM32L152RCT6TR is available at Aetrix Electronics and suitable for battery-powered medical sensors, portable industrial loggers, and smart utility meters requiring stable component supply throughout extended product lifecycles.

Supply support for STM32L152RCT6TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive semiconductors since 1987.

The STM32L1 series targets ultra-low-power embedded applications - emphasizing energy efficiency, analog integration, and long-life battery operation in portable, wearable, and industrial monitoring systems.

FAQ

What is the maximum operating frequency and corresponding supply voltage range?

The STM32L152RCT6TR achieves up to 32 MHz at 3.0–3.6 V supply. At reduced voltages (1.65–1.8 V), maximum frequency drops to 16 MHz due to dynamic voltage scaling - verified per Section 6.3.1 of the datasheet (DocID022799 Rev 13). This scaling ensures stable operation across battery discharge profiles.

Does this MCU support hardware-accelerated cryptographic functions?

No. The STM32L152RCT6TR does not include dedicated cryptographic accelerators (AES, SHA, PKA). Security relies on software libraries or external secure elements. For hardware crypto, consider STM32L4+, STM32H5, or STM32WB families - confirmed by absence in Section 3 functional overview and Table 2 peripheral counts.

Can the integrated LCD driver operate without an external charge pump?

Yes. The LCD controller includes an internal step-up converter capable of generating VLCD up to 5.2 V from VDD (1.65–3.6 V), eliminating need for external boost circuitry - specified in Section 3.9 and Table 65 (LCD controller characteristics) of the datasheet.

Is the USB interface compliant with USB Battery Charging Specification v1.2?

No. The USB 2.0 full-speed peripheral supports device-mode enumeration only (not host or OTG) and lacks BC1.2 D+/D− detection logic. Charging detection requires external circuitry or software-based enumeration checks - confirmed by absence in USB electrical specs (Tables 51–53) and functional description (Section 3.17.5).

STM32L152RCT6TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 64-LQFP

Series:: STM32L1

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Core Processor:: ARM® Cortex®-M3

Core Size:: 32-Bit Single-Core

Speed:: 32MHz

Connectivity:: I2C, IrDA, LINbus, SPI, UART/USART, USB

Peripherals:: Brown-out Detect/Reset, Cap Sense, DMA, I2S, LCD, POR, PWM, WDT

Number of I/O:: 51

Program Memory Size:: 256KB (256K x 8)

Program Memory Type:: FLASH

EEPROM Size:: 8K x 8

RAM Size:: 32K x 8

Voltage - Supply (Vcc/Vdd):: 1.8V ~ 3.6V

Data Converters:: A/D 21x12b; D/A 2x12b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

STM32L152RCT6TR FAQ

1.How can I place an order for STM32L152RCT6TR through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32L152RCT6TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STM32L152RCT6TR reliable?

The price and inventory of STM32L152RCT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L152RCT6TR is usually 5 days.

3.What payment methods are accepted for STM32L152RCT6TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L152RCT6TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32L152RCT6TR?

STM32L152RCT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32L152RCT6TR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STM32L152RCT6TR?

For technical support, including STM32L152RCT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L152RCT6TR requirements.

6.How does Aetrix verify that STM32L152RCT6TR is sourced from the original manufacturer or authorized distributors?

All STM32L152RCT6TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32L152RCT6TR meets industry standards.

7.What is the process for return or replacement of STM32L152RCT6TR?

All STM32L152RCT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L152RCT6TR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STM32L152RCT6TR part is unused and in its original packaging.

Return procedure for STM32L152RCT6TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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