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STMicroelectronics STM32L152RCT6
- Part No.:
- STM32L152RCT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32L152RCT6.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:331
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Product details
Overview
STM32L152RCT6 from STMicroelectronics is an ultra-low-power 32-bit ARM® Cortex®-M3 microcontroller with 256 KB Flash, 32 KB SRAM, 8 KB EEPROM, integrated LCD driver, USB 2.0 interface, and dual 12-bit ADC/DAC-designed for battery-powered industrial sensors, portable medical devices, and smart metering systems requiring long runtime and mixed-signal integration.
For engineers reviewing the STM32L152RCT6 datasheet, STM32L152RCT6 pinout, STM32L152RCT6 application, or STM32L152RCT6 equivalent, key selection factors include standby current (0.29 µA), 32 MHz max CPU frequency, 83 fast I/Os (70 tolerant to 5 V), 12-bit ADC with 25 channels/1 Msps, and integrated LCD controller supporting up to 8×40 segments.
Technical Context
The STM32L152RCT6 implements dynamic voltage scaling and multiple low-power modes (Stop, Standby, Low-power Run) with sub-µA retention states and <8 µs wakeup latency. Its Cortex-M3 core includes a memory protection unit (MPU), supports Thumb-2 instruction set, and delivers 1.25 DMIPS/MHz at 32 MHz.
Analog subsystem integration includes two rail-to-rail operational amplifiers, two ultra-low-power comparators with window mode and wake-up capability, and a temperature sensor with calibrated output. Clock architecture combines HSE (1–24 MHz), LSE (32.768 kHz RTC), HSI (16 MHz ±1%), LSI (37 kHz), and MSI (65 kHz–4.2 MHz) sources with a dedicated 48 MHz PLL for USB timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit, up to 32 MHz - enables deterministic real-time control with MPU for secure memory partitioning. |
| Memory | 256 KB Flash (with ECC), 32 KB SRAM, 8 KB true EEPROM (with ECC) - supports firmware updates, data logging, and parameter storage with error correction. |
| Power Consumption | 0.29 µA Standby (3 wakeup pins), 0.44 µA Stop (16 wakeup lines), 8.6 µA Low-power Run - extends battery life in coin-cell or energy-harvesting applications. |
| Analog Peripherals | 12-bit ADC (25 channels, 1 Msps), 12-bit DAC (2 channels), 2 op-amps, 2 comparators - enables sensor signal conditioning and analog feedback without external components. |
| Communication | USB 2.0 FS (48 MHz PLL), 3x USART, up to 8x SPI (2x I2S), 2x I2C - supports wired connectivity, serial diagnostics, audio streaming, and SMBus/PMBus power management. |
| Display Support | LCD driver up to 8×40 segments with contrast adjustment and step-up converter - drives segment-based displays directly without external bias circuitry. |
| I/O Capability | Up to 83 fast I/Os (70 5V-tolerant), all mappable to 16 external interrupt vectors - simplifies PCB routing and enables flexible peripheral multiplexing. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; 64-pin quad flat configuration optimized for manual soldering and automated assembly in space-constrained designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 1.65–3.6 V supply rails with separate analog/digital domains for noise isolation and precision ADC operation. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/O | 83 total I/Os (64 on LQFP64); 70 support 5 V tolerance-enables direct interfacing with legacy logic and industrial sensors. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external push-button or supervisor IC assertion. |
| BOOT0 | Boot mode selection | Configures boot source (system memory, Flash, or SRAM) at power-on; requires external pull-up/down for fixed startup behavior. |
| USB_DP / USB_DM | USB 2.0 full-speed differential pair | Integrated transceiver with internal 1.5 kΩ pull-up on DP-eliminates external USB resistor network. |
| OSC_IN / OSC_OUT | External crystal oscillator terminals | Supports 1–24 MHz crystals; enables precise timing for RTC, communication baud rates, and system clock stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power standby mode | 0.29 µA with 3 wakeup pins active-enables multi-year operation on CR2032 batteries in wireless sensor nodes. |
| Integrated LCD controller | Drives up to 8×40 segments with built-in step-up converter and blinking control-reduces BOM count and PCB area in portable instrumentation. |
| Dual 12-bit DAC with buffers | Two independent voltage outputs with rail-to-rail swing-supports analog waveform generation and closed-loop actuator control without external op-amps. |
| Pre-programmed USB/USART bootloader | Factory-loaded ROM code enabling firmware updates over USB or UART-eliminates need for JTAG/SWD during field deployment. |
| Hardware CRC calculation unit | 32-bit polynomial engine accelerating firmware integrity checks and communication frame validation-improves reliability in noisy industrial environments. |
Applications
| Smart Utility Metering | Portable Medical Monitoring |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meters with LCD display, tamper detection, and periodic RF transmission. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition (ADC), LCD refresh (LCD driver), secure data logging (EEPROM), and USB/UART firmware updates. Use Value: 0.29 µA standby current enables >10-year battery life; integrated LCD driver reduces component count by 4+ discrete parts. | Use Scenario: Handheld ECG or blood glucose monitors requiring analog front-end processing, graphical display, and USB data export. IC Role / Device Role / Timing Role: Signal acquisition hub handling electrode inputs via op-amps/ADC, driving segmented LCD, and generating calibration waveforms via DAC. Use Value: Dual 12-bit DAC channels enable precise test signal generation; 12-bit ADC with 25 channels supports multi-lead ECG sampling. |
| Industrial Wireless Sensor Node | Low-Power Environmental Data Logger |
Use Scenario: Remote temperature/humidity/pressure node powered by solar cell + supercapacitor, transmitting via LoRaWAN or NB-IoT. IC Role / Device Role / Timing Role: Central MCU coordinating sensor reads (ADC), RTC timestamping, low-power sleep scheduling, and UART-to-modem interface. Use Value: 8.6 µA low-power run mode minimizes energy draw during active sensing; 16 wakeup lines allow event-driven interrupts from multiple sensors. | Use Scenario: Unattended outdoor logger recording temperature, light, and CO₂ every 5 minutes using coin-cell battery. IC Role / Device Role / Timing Role: Timekeeping and data aggregation unit leveraging RTC + backup registers, EEPROM for non-volatile storage, and ultra-low leakage I/Os. Use Value: 10 nA I/O leakage prevents parasitic discharge of backup capacitors; 1.15 µA Standby+RTC enables >5-year operation on BR2032. |
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 |
|---|---|---|---|
| STM32L432KCU6 | ARM Cortex-M4F core, 256 KB Flash, 64 KB SRAM, no EEPROM or LCD driver, higher active current (80 µA/MHz) | Better DSP performance and floating-point support; lacks integrated LCD and EEPROM-requires external components for display/data retention. | Select when floating-point math or crypto acceleration is required, and display functionality is handled externally. |
| EFM32PG12B500F1024GL125 | ARM Cortex-M4, 1024 KB Flash, 256 KB RAM, no USB, no LCD, lower standby (0.17 µA), no integrated DAC | Superior energy efficiency in deep sleep but lacks USB and LCD peripherals-suited for RF-centric, display-free edge nodes. | Choose for ultra-low-energy mesh endpoints where USB connectivity and local display are unnecessary. |
Compared with STM32L152RCT6, STM32L432KCU6 trades EEPROM/LCD integration for M4F compute capability and larger RAM, while EFM32PG12B500F1024GL125 achieves lower standby current but omits USB and display support-making STM32L152RCT6 optimal for cost-sensitive, self-contained LCD-based metering.
Availability
STM32L152RCT6 is available at Aetrix Electronics and suitable for smart utility metering, portable medical monitoring, and industrial wireless sensor nodes requiring stable component supply across multi-year production cycles.
Supply support for STM32L152RCT6 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, specializing in microcontrollers, power management, MEMS, and automotive ICs.
The STM32L1 series targets ultra-low-power embedded applications demanding extended battery life, integrated analog peripherals, and robust real-time performance-optimized for metering, wearables, and environmental sensing.
FAQ
What is the maximum operating frequency and corresponding power supply range for the STM32L152RCT6?
The STM32L152RCT6 operates up to 32 MHz across its full 1.65–3.6 V supply range, enabled by dynamic voltage scaling. At 32 MHz, typical active current is 185 µA/MHz with VDD = 3.3 V; minimum supply voltage for 32 MHz operation is 2.4 V per datasheet Section 6.3.1.
Does the STM32L152RCT6 support hardware encryption or secure boot features?
No-the STM32L152RCT6 does not include hardware cryptographic accelerators (AES, SHA, PKA) or secure boot ROM. Security relies on software-implemented algorithms and external secure elements; later series (e.g., STM32L4+, STM32H5) add these features.
Can the integrated LCD driver operate without an external step-up converter?
Yes-the LCD controller includes an internal step-up converter supporting VLCD generation from VDD (1.8–3.6 V), enabling direct drive of static or multiplexed LCDs up to 8×40 segments without external charge pumps or boost ICs.
How many independent 12-bit DAC channels does the STM32L152RCT6 provide, and what output configurations are supported?
The STM32L152RCT6 provides two independent 12-bit DAC channels (DAC1 and DAC2), each with configurable output buffer, trigger source (timers, software), and alignment (left/right). Outputs support voltage buffering and can drive loads down to 5 kΩ with rail-to-rail swing.
STM32L152RCT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32L1
- Packaging:
- Tray
- 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:
STM32L152RCT6 FAQ
1.How can I place an order for STM32L152RCT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L152RCT6 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 STM32L152RCT6 reliable?
The price and inventory of STM32L152RCT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L152RCT6 is usually 5 days.
3.What payment methods are accepted for STM32L152RCT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L152RCT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L152RCT6?
STM32L152RCT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L152RCT6 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 STM32L152RCT6?
For technical support, including STM32L152RCT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L152RCT6 requirements.
6.How does Aetrix verify that STM32L152RCT6 is sourced from the original manufacturer or authorized distributors?
All STM32L152RCT6 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 STM32L152RCT6 meets industry standards.
7.What is the process for return or replacement of STM32L152RCT6?
All STM32L152RCT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L152RCT6, 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 STM32L152RCT6 part is unused and in its original packaging.
Return procedure for STM32L152RCT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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