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STMicroelectronics STM32L053C8T6TR
- Part No.:
- STM32L053C8T6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32L053C8T6TR.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:15,326
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Product details
Overview
STM32L053C8T6TR from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller with 64 KB Flash, 8 KB SRAM, 2 KB EEPROM, integrated LCD driver, USB 2.0 (crystal-less), and 12-bit ADC/DAC - deployed in battery-powered smart meters, portable medical sensors, and industrial IoT edge nodes requiring sub-1 µA stop-mode operation.
For engineers reviewing the STM32L053C8T6TR datasheet, STM32L053C8T6TR pinout, STM32L053C8T6TR application, or STM32L053C8T6TR equivalent, key selection criteria include verified 0.4 µA Stop mode current, 32 MHz max CPU frequency with dynamic voltage scaling, 45 5V-tolerant I/Os, and hardware-accelerated capacitive touch sensing across up to 24 channels.
Technical Context
This MCU implements a dual-voltage domain architecture: VDD/VSS for digital logic and VLCD for segmented LCD bias generation, enabling independent power control. Its clock system integrates five oscillators - HSI16, HSI48, LSI, MSI, and LSE - with automatic clock switching and PLL-based frequency multiplication up to 32 MHz.
The low-power design includes three dedicated wake-up sources per low-power mode: 2 pins in Standby, 16 lines in Stop, and RTC + 8 KB RAM retention at 0.8 µA. The embedded true RNG, CRC unit, and 96-bit unique ID support secure firmware updates and device authentication in constrained-edge applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+ with MPU, 32 MHz max - enables deterministic real-time control with memory protection for certified firmware partitions. |
| Flash / SRAM / EEPROM | 64 KB Flash (ECC), 8 KB SRAM, 2 KB EEPROM (ECC) - supports robust data logging and firmware rollback without external nonvolatile memory. |
| Low-power modes | 0.4 µA Stop mode (16 wake-up lines), 0.8 µA Stop+RTC+RAM retention - extends coin-cell battery life to >10 years in periodic-sensing applications. |
| Analog peripherals | 12-bit ADC (1.14 Msps, 16 ch), 12-bit DAC (1 ch, buffered), 2x ultra-low-power comparators - enables precision sensor signal chain with on-chip calibration and windowed wake-up. |
| Communication | 1x USB 2.0 (crystal-less, battery charging detection), 3x USART/LPUART, 4x SPI, 2x I2C - eliminates external crystal for USB, reduces BOM cost and PCB area in portable designs. |
| Specialized IP | LCD controller (8×28 segments), TSC (24 capacitive sensing channels), CRS - supports direct drive of segment displays and touch interfaces without external controllers. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad - optimized for thermal dissipation in compact industrial enclosures and compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Dual-domain support: VDD powers digital core and I/Os; separate VLCD pin required for LCD bias generation. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD12, PH0–PH1 | General-purpose I/Os | 45 pins are 5V-tolerant; all support multiple alternate functions including USB D+/D−, ADC inputs, DAC output, and TSC channels. |
| NRST | Active-low reset input | Internal pull-up; accepts external reset pulse ≥2 µs; supports programmable reset threshold via PVD. |
| USB_DP / USB_DM | USB 2.0 differential data lines | Crysal-less operation enabled by internal 48 MHz HSI48 oscillator with CRS synchronization - no external crystal or oscillator required. |
| VLCD | LCD segment/COM power supply | Provides regulated bias voltage (up to 3.3 V) for LCD segments; supports contrast adjustment and blinking mode via software registers. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power stop mode | 0.4 µA with 16 wake-up lines - enables energy harvesting systems to sleep between sensor reads while retaining full peripheral configuration. |
| Hardware capacitive touch | 24-channel TSC with built-in charge transfer and noise filtering - eliminates external touch controller IC and reduces firmware overhead for touchkey/rotary UIs. |
| Crystal-less USB | HSI48 + CRS achieves ±0.25% USB timing accuracy - removes 12 MHz crystal, saves ~$0.15 BOM cost and 2 mm² PCB area. |
| Embedded EEPROM | 2 KB data EEPROM with ECC and 100k write cycles - stores calibration coefficients, device IDs, or usage counters without wear-leveling firmware. |
| True random number generator | Digital TRNG compliant with NIST SP800-90B - provides entropy source for TLS handshakes and secure boot in resource-constrained IoT nodes. |
Applications
| Smart Utility Meter | Portable ECG Monitor |
|---|---|
Use Scenario: Battery-powered electricity/water meter with LCD display, tamper detection, and periodic RF transmission. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, LCD refresh, RTC-based billing intervals, and low-power wake-up for communication bursts. Use Value: 0.4 µA Stop mode + 5 µs flash wake-up ensures <1 µA average current over 15-minute reporting cycles, extending 2×AA battery life beyond 10 years. | Use Scenario: Handheld cardiac monitor with analog front-end, OLED/LCD display, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Signal acquisition controller running 12-bit ADC at 1 kHz, buffering samples in SRAM, driving LCD via integrated controller, and triggering BLE transmission on arrhythmia detection. Use Value: Integrated 12-bit DAC and dual comparators enable real-time QRS complex detection and audible alert generation without external analog components. |
| Industrial Wireless Sensor Node | Asset Tracking Beacon |
Use Scenario: Temperature/humidity/pressure node powered by Li-SOCl₂ battery, transmitting via LoRaWAN every 6 hours. IC Role / Device Role / Timing Role: Sensor hub aggregating data from I2C/ADC peripherals, executing CRC integrity checks, managing deep-sleep scheduling, and waking precisely for radio transmit windows. Use Value: 0.8 µA Stop+RTC+8 KB RAM retention preserves sensor context and network state across sleep periods, eliminating re-initialization latency and reducing transmit duty cycle. | Use Scenario: GPS-denied indoor asset tracker using BLE proximity and accelerometer-based motion detection. IC Role / Device Role / Timing Role: Motion-triggered controller using TSC for tap/gesture recognition and internal LPTIM for ultra-low-power interval timing between accelerometer polls. Use Value: 24-channel capacitive sensing enables multi-touch gesture UI on compact PCB; 3.5 µs RAM wake-up allows immediate response to user interaction without perceptible lag. |
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 |
|---|---|---|---|
| STM32L073RZT6 | 192 KB Flash, 20 KB SRAM, no LCD driver, adds AES-128 accelerator | Suitable for secure firmware OTA updates but lacks integrated display support | Select when cryptographic acceleration and larger code space outweigh LCD integration needs. |
| EFM32PG12B500F1024GL125 | ARM Cortex-M4, 1024 KB Flash, 256 KB RAM, no USB, higher active current (120 µA/MHz) | Better for DSP-intensive sensor fusion; requires external USB transceiver and display driver | Choose for computationally intensive edge AI inference where ultra-low sleep current is secondary. |
Compared with STM32L053C8T6TR, STM32L073RZT6 trades LCD capability for security IP and memory headroom, while EFM32PG12B500F1024GL125 offers higher compute throughput at the expense of power efficiency and system integration - making STM32L053C8T6TR optimal for cost-sensitive, display-integrated, battery-constrained edge nodes.
Availability
STM32L053C8T6TR is available at Aetrix Electronics and suitable for smart utility meters, portable medical sensors, industrial wireless sensor nodes, and asset tracking beacons requiring stable component supply across multi-year production cycles.
Supply support for STM32L053C8T6TR 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, delivering silicon solutions for automotive, industrial, and consumer markets since 1987.
The STM32L0 series targets ultra-low-power embedded applications demanding extended battery life, integrated analog peripherals, and secure firmware execution - designed specifically for metering, wearable health, and predictive maintenance edge devices.
FAQ
What is the maximum operating temperature range for STM32L053C8T6TR?
The STM32L053C8T6TR is rated for operation from –40 °C to +125 °C ambient temperature. This extended range is validated per ST's production test flow and supports deployment in harsh industrial environments such as smart grid substations and automotive under-hood telemetry modules.
Does STM32L053C8T6TR support USB device mode without an external crystal?
Yes - it integrates a factory-trimmed 48 MHz HSI48 oscillator synchronized via Clock Recovery System (CRS) to USB SOF packets, achieving ±0.25% timing accuracy. This eliminates the need for an external 12 MHz crystal, reducing bill-of-materials cost and PCB layout complexity.
How many I/O pins are 5V tolerant on STM32L053C8T6TR?
45 GPIOs are 5V tolerant (PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD12, PH0–PH1), confirmed in Section 6.3.13 of DS10152 Rev 10. This allows direct interfacing with legacy 5V logic, industrial sensors, and RS-232 level shifters without external voltage translators.
Can the integrated LCD controller drive static or multiplexed displays?
The LCD controller supports up to 8 commons and 28 segments (8×28), enabling both static and 1/2–1/8 multiplexed displays. It includes on-chip step-up converter, contrast adjustment registers, and blinking mode - eliminating external LCD bias ICs and simplifying display subsystem design.
STM32L053C8T6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-LQFP
- Series:
- STM32L0
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O:
- 37
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 10x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L053C8T6TR FAQ
1.How can I place an order for STM32L053C8T6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L053C8T6TR 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 STM32L053C8T6TR reliable?
The price and inventory of STM32L053C8T6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L053C8T6TR is usually 5 days.
3.What payment methods are accepted for STM32L053C8T6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L053C8T6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L053C8T6TR?
STM32L053C8T6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L053C8T6TR 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 STM32L053C8T6TR?
For technical support, including STM32L053C8T6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L053C8T6TR requirements.
6.How does Aetrix verify that STM32L053C8T6TR is sourced from the original manufacturer or authorized distributors?
All STM32L053C8T6TR 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 STM32L053C8T6TR meets industry standards.
7.What is the process for return or replacement of STM32L053C8T6TR?
All STM32L053C8T6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L053C8T6TR, 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 STM32L053C8T6TR part is unused and in its original packaging.
Return procedure for STM32L053C8T6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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