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STMicroelectronics STM32L053C8T6D
- Part No.:
- STM32L053C8T6D
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32L053C8T6D.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,676
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Product details
Overview
STM32L053C8T6D from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller with 64 KB Flash, 8 KB SRAM, and 2 KB EEPROM with ECC; features integrated LCD driver (8×28 segments), USB 2.0 crystal-less interface, 12-bit ADC (1.14 Msps, 16 channels), and 12-bit DAC - deployed in battery-powered smart meters and portable medical sensors.
For engineers reviewing the STM32L053C8T6D datasheet, STM32L053C8T6D pinout, STM32L053C8T6D application, or STM32L053C8T6D equivalent, key selection criteria include standby current (0.27 µA), RTC + RAM retention in Stop mode (0.8 µA), 32 MHz max CPU frequency, 45 5V-tolerant I/Os, and integrated capacitive touch sensing (24 channels).
Technical Context
The STM32L053C8T6D implements a dual-voltage domain architecture supporting dynamic voltage scaling across three operating ranges (1.65–3.6 V), enabling adaptive power management for extended battery life. Its Cortex-M0+ core includes a memory protection unit (MPU) and executes at up to 32 MHz with 0.95 DMIPS/MHz efficiency.
Low-power operation is enforced via five distinct modes: Run, Sleep, Low-power Run, Stop, and Standby - each with configurable peripheral retention and wake-up sources including 16 wake-up lines and two ultra-low-power comparators (operable down to 1.65 V). The on-chip HSI48 oscillator enables crystal-less USB operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+ with MPU, 32 MHz max clock - enables deterministic real-time control with memory isolation for firmware safety. |
| Memory | 64 KB Flash (ECC-protected), 8 KB SRAM, 2 KB EEPROM (ECC-protected) - supports robust firmware storage and nonvolatile parameter retention without external components. |
| Power Consumption | 0.27 µA Standby (2 wake-up pins), 0.8 µA Stop + RTC + 8 KB RAM retention - extends coin-cell battery life to >10 years in metering applications. |
| Analog Peripherals | 12-bit ADC (16 ch, 1.14 Msps, down to 1.65 V), 12-bit DAC (1 ch, buffered output, down to 1.8 V), 2x ultra-low-power comparators - enables precision sensor signal chain integration without external signal conditioning. |
| Communication | 1x USB 2.0 (crystal-less), 3x USART/LPUART, 4x SPI (16 Mbit/s), 2x I2C (SMBus/PMBus) - supports simultaneous wired connectivity (USB host/device) and low-power sensor bus interfacing. |
| Specialized IP | LCD controller (8×28 segments), capacitive touch sensing (24 channels), true RNG, CRC unit, 96-bit unique ID - integrates human interface and security functions into single-chip designs. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, ECOPACK2 certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | Primary 1.65–3.6 V power input; connects to external LDO or DC/DC converter with local 100 nF decoupling. |
| VSS | Ground reference | Digital and analog ground return; requires low-impedance connection to PCB ground plane. |
| NRST | Active-low reset | Asynchronous reset input; internal pull-up enabled; accepts 1.65–3.6 V logic levels. |
| PA0–PA15 | General-purpose I/O | 45 total I/Os (45 5V-tolerant); support multiple alternate functions including ADC_IN0–15, TIM2_CH1–4, USART_TX/RX, SPI_MOSI/MISO/SCK. |
| PC13–PC15 | RTC & oscillator | PC14/PC15 drive 32.768 kHz crystal for RTC; PC13 serves as RTC alarm/wake-up output or tamper detection input. |
| PD0–PD2 | USB interface | PD0 (USB_DM), PD1 (USB_DP), PD2 (USB_VBUS) - enable crystal-less USB 2.0 device operation with built-in transceiver and battery charging detection. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Stop mode + RTC + 8 KB RAM retention | 0.8 µA current draw enables decade-long battery operation while preserving real-time clock and critical context. |
| Crystal-less USB 2.0 interface | Integrated HSI48 oscillator with clock recovery system (CRS) eliminates external USB crystal, reducing BOM cost and board space. |
| On-chip LCD controller | Drives up to 8 commons × 28 segments with internal step-up converter and contrast adjustment - eliminates external LCD bias IC. |
| Capacitive touch sensing (TSC) | 24-channel hardware-accelerated touch controller supporting touchkey, linear, and rotary sensors - enables direct electrode connection without external IC. |
| True random number generator (RNG) | FIPS-compliant entropy source used for secure key generation and cryptographic initialization - meets IEC 62443-3-3 requirements for industrial IoT. |
Applications
| Smart Energy Metering | Portable Medical Sensors |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meter with LCD display, tamper detection, and periodic wireless data upload. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, LCD refresh, and low-power wake-up for RF transmission. Use Value: 0.27 µA Standby current and integrated 32.768 kHz RTC oscillator enable >15-year battery life without external timing components. |
Use Scenario: Handheld ECG or blood glucose monitor with graphical LCD, touch interface, and USB data export. IC Role / Device Role / Timing Role: Signal acquisition controller running ADC at 1.14 Msps, driving LCD via integrated controller, and handling USB mass storage protocol. Use Value: Crystal-less USB 2.0 and on-board step-up LCD converter reduce component count by ≥4 passive parts and one IC versus discrete solutions. |
| Industrial Wireless Sensor Node | Asset Tracking Beacon |
|
Use Scenario: Temperature/humidity/pressure node powered by Li-SOCl₂ battery, transmitting via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Low-power coordinator acquiring sensor data via I2C, performing basic edge processing, and triggering radio via GPIO interrupt. Use Value: 5 µs wake-up from Flash and 0.4 µA Stop mode allow sub-100 µA average current over full duty cycle - extending battery life to 7+ years. |
Use Scenario: GPS-denied indoor asset tracker using BLE beaconing and capacitive touch activation. IC Role / Device Role / Timing Role: Touch-sensing hub detecting user interaction, waking from Standby, initiating BLE advertisement, then returning to 0.27 µA Standby. Use Value: 24-channel TSC and dedicated wake-up comparators eliminate need for external touch IC and discrete wake-up circuitry. |
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 and additional UART/SPI | Suitable for secure firmware updates and higher-bandwidth sensor fusion; lacks integrated display support | Select when cryptographic acceleration and larger code footprint are required, but LCD is unnecessary. |
| STM32L433RCT6 | Cortex-M4F core, 256 KB Flash, 64 KB SRAM, no EEPROM, higher active power (81 µA/MHz), FPU | Better for floating-point math (motor control, FFT), but doubles typical Run-mode current vs. L053 | Choose for computationally intensive tasks where ultra-low sleep current is secondary to processing throughput. |
Compared with STM32L073RZT6 and STM32L433RCT6, the STM32L053C8T6D delivers the lowest standby current (0.27 µA) and integrated LCD/touch - making it optimal for cost-sensitive, display-equipped, long-life battery devices where cryptographic or DSP capability is not required.
Availability
STM32L053C8T6D is available at Aetrix Electronics and suitable for smart metering, portable diagnostics, industrial sensor nodes, and asset tracking requiring stable component supply and long-term lifecycle assurance.
Supply support for STM32L053C8T6D 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 - designed specifically for battery-operated devices demanding multi-year runtime, integrated peripherals, and robust security primitives like RNG and firewall protection.
FAQ
What is the maximum operating temperature range for STM32L053C8T6D?
The STM32L053C8T6D is rated for continuous operation from –40 °C to +125 °C ambient temperature, validated per JEDEC JESD22-A108. This extended range supports deployment in harsh environments such as utility meter enclosures exposed to outdoor thermal cycling and industrial motor control cabinets.
Does STM32L053C8T6D support USB device functionality without an external crystal?
Yes - the device integrates an HSI48 oscillator and Clock Recovery System (CRS) that synchronizes USB timing directly to the host SOF packet, eliminating the need for a 48 MHz crystal or external clock source. This is confirmed in Section 3.19.5 and Table 46 of DS10152 Rev 10.
How many I/O pins are 5V tolerant on STM32L053C8T6D?
45 I/O pins (PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD2) are 5V tolerant when VDD is ≥ 2.0 V, as specified in Section 6.3.13 and Table 58 of the datasheet. This allows direct interfacing with legacy 5V logic without level shifters in mixed-voltage systems.
Is the 2 KB EEPROM truly wear-levelled and endurance-rated?
Yes - the 2 KB data EEPROM is implemented in Flash technology with hardware wear leveling and supports 100,000 write/erase cycles and 20-year data retention at 55 °C, per Table 52 in DS10152 Rev 10. It includes ECC for bit-error correction and sector protection against unintended writes.
STM32L053C8T6D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-LQFP
- Series:
- STM32L0
- Packaging:
- Tray
- 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):
- 1.65V ~ 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:
STM32L053C8T6D FAQ
1.How can I place an order for STM32L053C8T6D through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L053C8T6D 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 STM32L053C8T6D reliable?
The price and inventory of STM32L053C8T6D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L053C8T6D is usually 5 days.
3.What payment methods are accepted for STM32L053C8T6D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L053C8T6D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L053C8T6D?
STM32L053C8T6D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L053C8T6D 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 STM32L053C8T6D?
For technical support, including STM32L053C8T6D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L053C8T6D requirements.
6.How does Aetrix verify that STM32L053C8T6D is sourced from the original manufacturer or authorized distributors?
All STM32L053C8T6D 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 STM32L053C8T6D meets industry standards.
7.What is the process for return or replacement of STM32L053C8T6D?
All STM32L053C8T6D units undergo pre-shipment inspection (PSI). If there is an issue with STM32L053C8T6D, 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 STM32L053C8T6D part is unused and in its original packaging.
Return procedure for STM32L053C8T6D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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