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STMicroelectronics STM32L162RCT6TR
- Part No.:
- STM32L162RCT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32L162RCT6TR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:797
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Product details
Overview
STM32L162RCT6TR from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M3 microcontroller with 256 KB Flash, 32 KB SRAM, 8 KB ECC-protected EEPROM, integrated LCD controller (8×40 segments), USB 2.0 interface, and hardware AES-128 encryption accelerator. 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 and portable industrial data loggers requiring long runtime and secure firmware updates.
For engineers reviewing the STM32L162RCT6TR datasheet, STM32L162RCT6TR pinout, STM32L162RCT6TR application, or STM32L162RCT6TR equivalent, key selection criteria include standby current (0.29 µA), LCD driver capability, dual 12-bit ADC/DAC channels, 2x operational amplifiers, and USB/USART bootloader support for field firmware recovery.
Technical Context
The device integrates a Cortex-M3 core with MPU, dynamic voltage scaling, and seven low-power modes - including Stop mode (0.44 µA) and Standby mode (0.29 µA) with RTC retention. Its clock system combines multiple internal oscillators (HSI, LSI, MSI) and external sources (1–24 MHz HSE, 32 kHz LSE), plus a dedicated 48 MHz PLL for USB timing.
Analog subsystem includes two rail-to-rail op-amps, two ultra-low-power comparators with window mode and wake-up capability, a 12-bit 1 Msps ADC (up to 25 channels), and two buffered 12-bit DACs - all functional down to 1.8 V supply, enabling direct sensor signal conditioning 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 with 1.25 DMIPS/MHz efficiency. |
| Memory | 256 KB Flash with ECC, 32 KB SRAM, 8 KB true EEPROM with ECC - supports robust firmware storage and parameter retention over 100k erase/write cycles. |
| Low-power Modes | 0.29 µA Standby (3 wakeup pins), 0.44 µA Stop (16 wakeup lines), 8.6 µA Low-power run - extends coin-cell battery life to multi-year operation. |
| Analog Peripherals | 12-bit ADC (1 Msps, 25 ch), 12-bit DAC (2 ch, buffered), 2× op-amps, 2× comparators - enables full analog front-end integration for sensor nodes. |
| Connectivity | USB 2.0 FS (48 MHz PLL), 3× USART, up to 8× SPI (incl. 2× I2S), 2× I2C - supports mixed wired/wireless gateway architectures with local diagnostics. |
| LCD Driver | 8×40 segment controller with on-board step-up converter and contrast adjustment - eliminates external bias generator in portable displays. |
| Security | AES-128 hardware accelerator + 96-bit unique ID - accelerates encrypted communication and device authentication without CPU overhead. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with 51 general-purpose I/Os (70 total I/Os, 5V tolerant on 70 pins), including dedicated LCD segment/common pins, USB D+/D−, and multiple alternate-function remappable signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary 1.65–3.6 V core and I/O domain; decoupling required per datasheet layout guidelines. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/O | 51 GPIOs available; up to 70 usable (5V tolerant); all mappable to 16 external interrupt vectors for flexible peripheral routing. |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 interface with internal transceiver - no external PHY needed for basic HID or CDC applications. |
| PC12–PC15, PD0–PD7, PE2–PE7 | LCD segment/common | Direct drive for up to 8 commons × 40 segments; supports blinking, contrast control, and internal boost converter (VLCD). |
| PA0–PA7, PB0–PB1 | ADC1_IN0–IN9 | 10-channel analog input mapping for 12-bit ADC - supports simultaneous sampling with DMA for continuous sensor monitoring. |
| PA4, PA5 | DAC_OUT1, DAC_OUT2 | Buffered 12-bit DAC outputs - drive resistive loads directly; compatible with op-amp gain stages for precision analog output. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power standby | 0.29 µA with 3 wakeup pins active - enables years of operation on CR2032 batteries in maintenance-free IoT endpoints. |
| Integrated LCD controller | 8×40 segment drive with on-chip step-up converter - reduces BOM count by eliminating external LCD bias IC and discrete boost circuitry. |
| Hardware AES-128 | Dedicated encryption engine with DMA support - offloads cryptographic operations from CPU, preserving real-time responsiveness during secure OTA updates. |
| Dual 12-bit DACs | Two buffered outputs with independent trigger sources - enables synchronized analog waveform generation for calibration and test equipment. |
| Temperature sensor | Calibrated internal sensor (±1.5°C accuracy) with ADC channel - provides system thermal monitoring without external components. |
Applications
| Wearable Health Monitor | Smart Utility Meter |
|---|---|
Use Scenario: Continuous ECG/PPG signal acquisition with local display and BLE-bridged upload. IC Role / Device Role / Timing Role: Main MCU handling analog front-end (ADC, op-amps), LCD rendering, USB-based firmware update, and AES-secured data packetization. Use Value: Ultra-low standby current (0.29 µA) and integrated LCD driver extend battery life beyond 12 months on a single coin cell. | Use Scenario: Tamper-resistant electricity meter with LCD readout, pulse counting, and secure remote firmware validation. IC Role / Device Role / Timing Role: System controller managing metrology ADC, LCD, real-time clock, tamper detection inputs, and AES-encrypted communication stack. Use Value: Hardware AES-128 and 96-bit unique ID enable FIPS-compliant firmware signing and anti-cloning protection. |
| Portable Gas Detector | Industrial Data Logger |
Use Scenario: Battery-powered handheld unit detecting CO/H2S with audible alarm, LCD status, and USB configuration port. IC Role / Device Role / Timing Role: Sensor signal conditioner (op-amps, comparators), ADC acquisition engine, LCD driver, and USB/USART bootloader interface. Use Value: Dual ultra-low-power comparators provide fast gas-threshold alerting with sub-millisecond response and RTC-synchronized logging. | Use Scenario: Ruggedized environmental logger recording temperature, humidity, and vibration in remote locations for weeks between uploads. IC Role / Device Role / Timing Role: Host controller for multiple sensors via I2C/SPI, SD card interface (via SPI), RTC-timestamped storage, and low-power sleep scheduling. Use Value: 8.6 µA low-power run mode and 1.4 µA Stop+RTC allow >6-month deployment on AA batteries with periodic wake-up intervals. |
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, no LCD driver, lower standby current (150 nA), no EEPROM | Better for DSP-intensive tasks (e.g., FFT-based vibration analysis); unsuitable where integrated LCD or EEPROM retention is required | Select when floating-point math or ultra-deep sleep (<200 nA) outweighs LCD/ECC-EEPROM needs |
| STM32L152RCT6 | Same LQFP64 package, identical peripherals except no AES accelerator and reduced Flash (256 KB → 256 KB same, but no hardware crypto) | Valid for cost-sensitive designs where firmware security is handled externally or via software AES | Choose when AES-128 acceleration is not mandatory and BOM cost reduction is prioritized |
Compared with STM32L432KCU6, STM32L162RCT6TR offers integrated LCD and EEPROM but higher standby current; versus STM32L152RCT6, it adds hardware AES while retaining identical power/peripheral profile - making it optimal for secure, display-equipped edge devices.
Availability
STM32L162RCT6TR is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, portable gas detectors, and industrial data loggers requiring stable component supply across extended product lifecycles.
Supply support for STM32L162RCT6TR 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 analog products for industrial, automotive, and consumer markets.
The STM32L1 series targets ultra-low-power embedded applications demanding multi-year battery life, integrated analog peripherals, and secure firmware execution - optimized for portable medical, metering, and environmental sensing systems.
FAQ
What is the maximum operating frequency and associated power consumption in Run mode?
The STM32L162RCT6TR runs at up to 32 MHz with 185 µA/MHz typical current draw. At full speed (32 MHz), total Run mode current is approximately 5.92 mA (185 µA × 32) when executing code from Flash with all peripherals active - verified in DS8928 Rev 12 Section 6.3.4.
Does this MCU support USB device functionality without external components?
Yes - it integrates a full-speed USB 2.0 transceiver with internal pull-ups and D+/D− I/Os (PA11/PA12). No external PHY or termination resistors are required for standard HID or CDC-class device operation, as confirmed in Section 3.18.5 and Table 51 of the datasheet.
How many I/O pins are 5V tolerant, and which ones are they?
70 I/O pins are 5V tolerant, covering all GPIOs except those assigned to USB (PA11/PA12), oscillator inputs (PH0/PH1), and BOOT0. Pin-specific tolerance is defined in Table 43 (I/O static characteristics) and Section 6.3.13 of DS8928 Rev 12.
Is the 8 KB EEPROM truly erasable and writable independently of Flash memory?
Yes - the 8 KB data EEPROM is physically separate from Flash, supports byte/word write and page erase operations, and guarantees 100,000 erase/write cycles with 20-year data retention at 55°C, as specified in Table 36 and Table 37 of the datasheet.
STM32L162RCT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32L1
- Packaging:
- Tape & Reel (TR)
- 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, 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:
STM32L162RCT6TR FAQ
1.How can I place an order for STM32L162RCT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L162RCT6TR 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 STM32L162RCT6TR reliable?
The price and inventory of STM32L162RCT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L162RCT6TR is usually 5 days.
3.What payment methods are accepted for STM32L162RCT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L162RCT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L162RCT6TR?
STM32L162RCT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L162RCT6TR 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 STM32L162RCT6TR?
For technical support, including STM32L162RCT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L162RCT6TR requirements.
6.How does Aetrix verify that STM32L162RCT6TR is sourced from the original manufacturer or authorized distributors?
All STM32L162RCT6TR 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 STM32L162RCT6TR meets industry standards.
7.What is the process for return or replacement of STM32L162RCT6TR?
All STM32L162RCT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L162RCT6TR, 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 STM32L162RCT6TR part is unused and in its original packaging.
Return procedure for STM32L162RCT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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