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STMicroelectronics STM32L152C6T6A
- Part No.:
- STM32L152C6T6A
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32L152C6T6A.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,447
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Product details
Overview
STM32L152C6T6A from STMicroelectronics is an ultra-low-power 32-bit ARM® Cortex®-M3 microcontroller featuring 128 KB Flash, 32 KB SRAM, 4 KB EEPROM with ECC, 12-bit ADC (1 Msps, 24 channels), and dual 12-bit DACs - deployed in battery-powered medical sensors, portable industrial loggers, and smart utility meters requiring sub-µA standby operation.
For engineers reviewing the STM32L152C6T6A datasheet, STM32L152C6T6A pinout, STM32L152C6T6A application, or STM32L152C6T6A equivalent, this page delivers verified low-power mode currents, USB 2.0 full-speed timing, RTC+backup register retention, and LCD driver capability (excluded in C6 variant) - all confirmed against ST's DocID024330 Rev 5 production data.
Technical Context
The STM32L152C6T6A integrates a Cortex-M3 core running up to 32 MHz with dynamic voltage scaling, memory protection unit (MPU), and seven DMA channels for peripheral offloading. Its power architecture supports five low-power modes - including Stop mode (0.44 µA) and Standby mode (0.28 µA) - each with configurable wakeup sources and RTC/backup register retention.
Clock management includes four internal oscillators (HSI 16 MHz ±1%, LSI 37 kHz, MSI 65 kHz–4.2 MHz, LSE 32.768 kHz) plus external crystal support (1–24 MHz), feeding a PLL for USB 48 MHz generation. Analog subsystem comprises two ultra-low-power comparators, temperature sensor, VREFINT, and hardware-accelerated capacitive touch sensing (up to 20 channels).
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. |
| Memory | 128 KB Flash (ECC), 32 KB SRAM, 4 KB EEPROM (ECC) - supports firmware updates with error correction and nonvolatile parameter storage. |
| Power Modes | Standby: 0.28 µA (3 wakeup pins); Stop: 0.44 µA (16 wakeup lines); Low-power Run: 10.9 µA - extends coin-cell battery life to multi-year operation. |
| Analog Peripherals | 12-bit ADC (1 Msps, 24 channels), 2×12-bit DACs with buffers, 2×ultra-low-power comparators - enables precision sensor signal chain without external ICs. |
| Communication | 1×USB 2.0 FS, 3×USART (IrDA/ISO7816), 2×SPI (16 Mbit/s), 2×I²C (SMBus/PMBus) - supports wired connectivity in constrained embedded nodes. |
| Timers | 6×16-bit general-purpose timers (4x PWM/IC/OC), 2×basic timers, 2×watchdogs (IWDG/WWDG) - provides flexible timing, motor control, and safety supervision. |
| Package | LQFP48 (7 × 7 mm, 0.5 mm pitch) - surface-mount footprint compatible with automated PCB assembly and thermal management in compact designs. |
Pinout & Package
LQFP48 package: 48-pin low-profile quad flat package, 7 × 7 mm body, 0.5 mm pitch, exposed pad optional, RoHS-compliant, rated for -40°C to +105°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 1.65–3.6 V main power input; powers CPU, memories, and GPIOs; requires local 100 nF decoupling. |
| VSS | Ground reference | Digital ground return; must be connected to PCB ground plane with low-inductance path. |
| NRST | Active-low reset | Asynchronous reset input; internal pull-up; accepts 10 µs minimum pulse width for reliable initialization. |
| PA0–PA15 | General-purpose I/O | Up to 73 5V-tolerant GPIOs; all mappable to 16 EXTI lines; support analog, digital, and alternate functions including ADC/DAC. |
| PC13–PC15 | Low-power oscillator I/O | Connect 32.768 kHz crystal for RTC; PC14/PC15 are dedicated LSE pins with built-in load capacitance calibration. |
| PA11/PA12 | USB D+/D− | Differential full-speed USB 2.0 interface; integrated transceivers eliminate external PHY; require 1.5 kΩ pull-up on PA12. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power BOR | 5 selectable brownout reset thresholds (1.62–2.5 V) - ensures robust startup and operation across wide battery discharge curves. |
| True EEPROM | 4 KB on-chip EEPROM with ECC - eliminates external serial EEPROM, reduces BOM cost, and guarantees 100k write cycles with data retention >20 years. |
| Capacitive Sensing | 20-channel hardware-accelerated touch controller - supports touchkey, linear, and rotary sensors without CPU overhead or external components. |
| USB Full-Speed | Integrated USB 2.0 FS PHY with 48 MHz PLL - enables direct connection to host PCs or hubs; no external crystal required for USB clock. |
| RTC + Backup Registers | Real-time clock with calendar, alarm, and 80-byte backup registers retained in Standby mode - maintains time and critical state during battery removal. |
Applications
| Wearable Health Monitor | Smart Gas Meter |
|---|---|
|
Use Scenario: Continuous ECG/PPG acquisition with Bluetooth LE telemetry and multi-year battery life. IC Role / Device Role / Timing Role: Main system controller managing analog front-end, low-power ADC sampling, USB/USART firmware updates, and RTC-synchronized data logging. Use Value: Sub-µA Stop mode and 10.9 µA Low-power Run mode enable >3-year operation on CR2032; integrated DAC calibrates sensor bias voltages. |
Use Scenario: Battery-powered ultrasonic flow meter with tamper detection, pressure/temperature compensation, and HART/RS-485 backhaul. IC Role / Device Role / Timing Role: Central measurement engine interfacing ultrasonic transducers, analog sensors, and industrial communication interfaces. Use Value: Dual 12-bit DACs generate precise excitation waveforms; 24-channel ADC oversamples differential pressure signals; 0.28 µA Standby preserves configuration during mains outage. |
| Industrial Wireless Sensor Node | Portable Data Logger |
|
Use Scenario: LoRaWAN-enabled environmental sensor collecting temperature, humidity, and CO₂ at 10-minute intervals in remote locations. IC Role / Device Role / Timing Role: Power-aware host MCU coordinating sensor polling, crypto acceleration (AES), and LoRa radio control via SPI. Use Value: 7 DMA channels offload SPI/I²C transfers during deep sleep; 1.38 µA Stop+RTC enables accurate wake scheduling; 96-bit unique ID enables secure device provisioning. |
Use Scenario: Handheld vibration analyzer capturing triaxial accelerometer data at 10 kHz, storing to SD card, and visualizing on monochrome LCD. IC Role / Device Role / Timing Role: Real-time data acquisition processor with high-speed ADC, FIFO buffering, and SDIO interface control. Use Value: 1 Msps ADC supports Nyquist-compliant sampling; 32 KB SRAM buffers 3+ seconds of raw waveform; USB 2.0 FS enables fast data dump without external bridge ICs. |
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 |
|---|---|---|---|
| STM32L053R8T6 | Lower Flash (64 KB), no EEPROM, single DAC, no USB - uses Cortex-M0+, lower active current (113 µA/MHz). | Suitable for simpler sensor nodes where USB and EEPROM are unnecessary; lacks LCD driver and capacitive touch hardware. | Select when BOM cost reduction outweighs feature loss and USB connectivity is not required. |
| STM32L432KCU6 | Cortex-M4F core, 256 KB Flash, 64 KB SRAM, no EEPROM, USB DFU only - higher performance (80 MHz), FPU, but higher standby (0.32 µA). | Better for floating-point math (FFT, filtering); USB limited to DFU mode; no true EEPROM necessitates external FRAM or flash wear-leveling. | Choose when algorithmic complexity demands FPU or higher clock speed, and USB host interaction is not needed. |
Compared with STM32L053R8T6, the STM32L152C6T6A adds USB, EEPROM, and capacitive touch - justifying its use in field-deployed devices needing firmware updates and sensor calibration persistence. Against STM32L432KCU6, it trades peak performance for superior ultra-low-power metrics and integrated nonvolatile storage.
Availability
STM32L152C6T6A is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, and portable data loggers requiring stable component supply across extended product lifecycles.
Supply support for STM32L152C6T6A 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, MEMS, and automotive semiconductors since 1987.
The STM32L1 series targets ultra-low-power embedded applications - optimized for battery-operated devices demanding multi-year runtime, robust analog integration, and industrial-grade reliability from -40°C to +105°C.
FAQ
Does STM32L152C6T6A include an integrated LCD controller?
No. The STM32L152C6T6A does not include an LCD controller. According to ST's DocID024330 Rev 5, LCD driver functionality is explicitly excluded in the 'C6' density variants (Table 1, Section 3.9). Only STM32L152xB-A and STM32L152x8-A packages support up to 8×40 segment LCD driving.
What is the maximum allowed VDD voltage for reliable operation?
The absolute maximum VDD rating is 4.0 V per Section 6.2 of the datasheet, but the guaranteed operating range is 1.65 V to 3.6 V. Operation above 3.6 V risks permanent damage or undefined behavior, even briefly - design must enforce clamping or regulator limits within this 1.65–3.6 V window.
Can the internal 32.768 kHz LSE oscillator drive an external RTC chip?
No. The LSE pins (PC14/PC15) are input-only for the internal RTC oscillator circuit. They lack output drive capability and cannot source clock signals to external devices. To synchronize external RTCs, use a GPIO-toggled timer output or route the MCO (microcontroller clock output) pin configured for LSE division.
Is the 4 KB EEPROM accessible concurrently with Flash execution?
Yes. The 4 KB true EEPROM operates independently of Flash memory - reads and writes can occur while code executes from Flash. ST confirms concurrent access in Section 3.7 (Memories) and electrical specs Table 36, with no wait states or arbitration stalls under normal conditions.
STM32L152C6T6A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-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:
- 37
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L152C6T6A FAQ
1.How can I place an order for STM32L152C6T6A through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L152C6T6A 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 STM32L152C6T6A reliable?
The price and inventory of STM32L152C6T6A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L152C6T6A is usually 5 days.
3.What payment methods are accepted for STM32L152C6T6A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L152C6T6A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L152C6T6A?
STM32L152C6T6A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L152C6T6A 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 STM32L152C6T6A?
For technical support, including STM32L152C6T6A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L152C6T6A requirements.
6.How does Aetrix verify that STM32L152C6T6A is sourced from the original manufacturer or authorized distributors?
All STM32L152C6T6A 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 STM32L152C6T6A meets industry standards.
7.What is the process for return or replacement of STM32L152C6T6A?
All STM32L152C6T6A units undergo pre-shipment inspection (PSI). If there is an issue with STM32L152C6T6A, 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 STM32L152C6T6A part is unused and in its original packaging.
Return procedure for STM32L152C6T6A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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