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STMicroelectronics STM32L152RCT6A
- Part No.:
- STM32L152RCT6A
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32L152RCT6A.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,906
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Product details
Overview
STM32L152RCT6A 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 dual 12-bit DACs. It operates from 1.65 V to 3.6 V across –40°C to +105°C and delivers 1.25 DMIPS/MHz performance-used in battery-powered medical sensors, portable industrial meters, and smart utility endpoints requiring long runtime and on-chip analog integration.
For engineers reviewing the STM32L152RCT6A datasheet, STM32L152RCT6A pinout, STM32L152RCT6A application, or STM32L152RCT6A equivalent, key selection criteria include standby current (305 nA), 12-bit ADC with 40-channel multiplexing, USB 2.0 full-speed interface with internal 48 MHz PLL, LCD driver capability, and 102 5V-tolerant I/Os-all validated for operation at 105°C ambient.
Technical Context
The STM32L152RCT6A implements dynamic voltage scaling and multiple low-power modes-including Stop mode (0.475 µA) and Standby mode (305 nA)-with RTC retention and 16 wakeup lines. Its Cortex-M3 core runs up to 32 MHz and includes a memory protection unit (MPU) for secure embedded execution.
Analog subsystem integration includes two operational amplifiers, two ultra-low-power comparators with window mode and wake-up capability, a 12-bit 1 Msps ADC (up to 40 channels), and two buffered 12-bit DACs-enabling sensor signal conditioning, precision actuator control, and mixed-signal data acquisition 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 and Dhrystone 2.1 benchmark of 1.25 DMIPS/MHz. |
| Memory | 256 KB Flash with ECC + 32 KB SRAM + 8 KB true EEPROM with ECC - supports firmware updates, data logging, and robust nonvolatile storage in harsh environments. |
| Low-power Modes | 305 nA Standby (3 wakeup pins), 0.475 µA Stop (16 wakeup lines), 11 µA Low-power Run - extends battery life in coin-cell or energy-harvested systems. |
| Analog Peripherals | 12-bit ADC (1 Msps, 40 ch), 2×12-bit DAC (buffered), 2×op-amps, 2×ultra-low-power comparators - allows full analog front-end integration for sensor nodes and closed-loop control. |
| Interface Count | 1×USB 2.0 FS, 3×USART, up to 8×SPI (2×I2S), 2×I2C, 11×timers - supports multi-protocol connectivity and time-critical peripheral management. |
| I/O & Packaging | 102 5V-tolerant GPIOs, LQFP64 package (10 × 10 mm) - provides high pin density with industrial-grade voltage tolerance and standard surface-mount compatibility. |
| LCD Support | Integrated LCD controller supporting up to 8×40 segments with contrast adjustment and step-up converter - eliminates external display drivers in portable instrumentation. |
Pinout & Package
LQFP64 package (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad. Pin count: 64 leads; body size: 10.0 × 10.0 mm; max height: 1.6 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD (1.65–3.6 V) powers digital/analog peripherals; VSS provides reference return path for all circuits. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/O | 102 total GPIOs; 5V-tolerant on most ports - simplifies level-shifting in mixed-voltage systems and supports direct connection to legacy peripherals. |
| OSC_IN / OSC_OUT | External crystal oscillator input/output | Supports 1–24 MHz crystals - enables precise timing for USB, RTC, and communication interfaces with low jitter. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external push-button or supervisor ICs for system-level fault recovery. |
| USB_DP / USB_DM | USB 2.0 full-speed differential pair | Internal transceivers and 48 MHz PLL eliminate need for external PHY - reduces BOM cost and PCB area in portable USB devices. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 305 nA standby current with 3 wakeup pins - enables >10-year battery life in metering applications using CR2032 cells. |
| On-chip analog integration | 2× op-amps + 2× comparators + 12-bit ADC/DAC - replaces 4–6 discrete analog ICs, reducing footprint and calibration complexity. |
| Embedded EEPROM | 8 KB true EEPROM with ECC - stores calibration data, device IDs, or configuration parameters with guaranteed 40k write/erase cycles and 20-year data retention. |
| Capacitive touch sensing | Up to 23 channels with hardware-accelerated acquisition - supports button/slider/gesture interfaces without external touch controller. |
| Secure boot & debug | Pre-programmed USB/USART bootloader + SWD/JTAG + ETM trace - enables field firmware updates and real-time code analysis during development and validation. |
Applications
| Portable Medical Sensor | Smart Utility Meter |
|---|---|
Use Scenario: Wearable ECG patch monitoring heart rate and rhythm continuously for 7+ days on a single coin cell. IC Role / Device Role / Timing Role: Main MCU handling analog front-end sampling (ADC), signal processing (Cortex-M3), LCD display refresh, and Bluetooth LE data transmission via USART. Use Value: 305 nA standby and 11 µA low-power run mode extend battery life; integrated op-amps condition biopotential signals; LCD driver drives segmented display without external bias generator. |
Use Scenario: Battery-backed gas/water meter logging consumption data hourly and transmitting via NB-IoT every 24 hours. IC Role / Device Role / Timing Role: System controller managing pulse counting (GPIO input capture), EEPROM-based data logging, RTC-triggered wake-up, and UART-driven modem interface. Use Value: 0.475 µA stop mode preserves battery for >10 years; 8 KB EEPROM stores tamper-proof usage history; 102 5V-tolerant I/Os interface directly with mechanical pulse sensors and RS-485 transceivers. |
| Industrial Handheld Tester | Environmental Data Logger |
Use Scenario: Rugged handheld multimeter measuring voltage, current, and temperature in field service applications with 8-hour continuous operation. IC Role / Device Role / Timing Role: Central processor executing auto-ranging logic, driving 4-digit LCD, managing USB-CDC host communication, and controlling precision DAC-based reference generation. Use Value: Dual 12-bit DACs generate calibrated test voltages; LCD controller supports 8×40 segment display with built-in contrast control; 105°C rating ensures reliability in hot enclosures. |
Use Scenario: Solar-powered soil moisture and temperature logger deployed outdoors for agricultural monitoring over 5+ years. IC Role / Device Role / Timing Role: Energy-aware controller sampling sensors via ADC, storing readings in EEPROM, waking every 15 minutes via RTC alarm, and transmitting via LoRaWAN using SPI-connected radio. Use Value: 1.35 µA stop mode + RTC enables precise low-power scheduling; internal 37 kHz RC oscillator maintains timekeeping during main power loss; ultra-low I/O leakage (10 nA) prevents parasitic discharge in high-impedance sensor circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L432KCU6 | ARM Cortex-M4F core, 256 KB Flash, 64 KB SRAM, no EEPROM, no LCD, lower standby current (150 nA) | Lacks integrated LCD and EEPROM; adds FPU and AES acceleration - better for floating-point math but requires external display driver and FRAM/NVRAM for data logging | Select when floating-point computation or cryptographic acceleration is required and LCD/ECC EEPROM are not needed. |
| EFM32PG12B500F1024GL125 | ARM Cortex-M4, 1024 KB Flash, 256 KB RAM, no USB, no LCD, 1.4 µA deep sleep (RTC active) | No USB or LCD support; superior RF coexistence and capacitive sensing resolution - suited for sub-GHz wireless sensor nodes without display or wired interface | Choose for battery-operated wireless sensor networks where USB/LCD are unnecessary and RF robustness is critical. |
Compared with STM32L152RCT6A, STM32L432KCU6 offers higher compute throughput and security features but sacrifices EEPROM and LCD integration; EFM32PG12B500F1024GL125 provides deeper sleep and RF resilience but lacks USB and display support-making STM32L152RCT6A optimal for cost-sensitive, display-equipped, USB-enabled portable instrumentation.
Availability
STM32L152RCT6A is available at Aetrix Electronics and suitable for portable medical sensors, smart utility meters, industrial handheld testers, and environmental data loggers requiring stable component supply, extended temperature operation, and long-term production continuity.
Supply support for STM32L152RCT6A 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 demanding extended battery life, integrated analog peripherals, and industrial temperature range operation-optimized for metering, wearables, and IoT edge nodes.
FAQ
What is the maximum operating temperature for STM32L152RCT6A?
The STM32L152RCT6A is rated for operation from –40°C to +105°C ambient temperature, verified per ST's production qualification standards. This extended range supports deployment in industrial enclosures, automotive under-hood environments, and outdoor utility infrastructure without derating.
Does STM32L152RCT6A include hardware CRC calculation?
Yes, it integrates a dedicated CRC calculation unit compliant with IEEE-802.3, supporting 32-bit polynomial computation in hardware. This accelerates firmware integrity checks, OTA update verification, and communication frame validation without CPU overhead.
Can the internal 12-bit DAC drive a 50 Ω load directly?
No-the DAC outputs require external buffering for loads below 5 kΩ. The datasheet specifies a minimum output load resistance of 5 kΩ for specified linearity and settling time; driving 50 Ω would cause gain error, distortion, and potential output stage damage.
Is the LQFP64 package of STM32L152RCT6A pin-compatible with other STM32L1 variants?
Yes-STM32L152RCT6A shares identical LQFP64 pinout with STM32L151RCT6A and STM32L152RBT6, enabling hardware reuse across memory/feature variants. However, LCD and USB functionality differ between L151/L152 subfamilies and must be validated in schematic design.
STM32L152RCT6A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32L1
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- 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:
STM32L152RCT6A FAQ
1.How can I place an order for STM32L152RCT6A through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L152RCT6A 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 STM32L152RCT6A reliable?
The price and inventory of STM32L152RCT6A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L152RCT6A is usually 5 days.
3.What payment methods are accepted for STM32L152RCT6A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L152RCT6A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L152RCT6A?
STM32L152RCT6A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L152RCT6A 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 STM32L152RCT6A?
For technical support, including STM32L152RCT6A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L152RCT6A requirements.
6.How does Aetrix verify that STM32L152RCT6A is sourced from the original manufacturer or authorized distributors?
All STM32L152RCT6A 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 STM32L152RCT6A meets industry standards.
7.What is the process for return or replacement of STM32L152RCT6A?
All STM32L152RCT6A units undergo pre-shipment inspection (PSI). If there is an issue with STM32L152RCT6A, 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 STM32L152RCT6A part is unused and in its original packaging.
Return procedure for STM32L152RCT6A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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