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STMicroelectronics STM32L162VCT6
- Part No.:
- STM32L162VCT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32L162VCT6.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,079
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Product details
Overview
STM32L162VCT6 from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M3 microcontroller featuring 256 KB Flash with ECC, 32 KB SRAM, 8 KB true EEPROM with ECC, integrated LCD controller (up to 8×40 segments), USB 2.0 interface, 12-bit ADC (1 Msps, 25 channels), and dual 12-bit DACs - deployed in battery-powered medical sensors, portable industrial meters, and smart utility metering systems.
For engineers reviewing the STM32L162VCT6 datasheet, STM32L162VCT6 pinout, STM32L162VCT6 application, or STM32L162VCT6 equivalent, key selection criteria include standby current (0.29 µA), LCD driver integration, AES-128 hardware acceleration, and 70 I/Os with 5V tolerance - all within LQFP100 package constraints.
Technical Context
The STM32L162VCT6 implements dynamic voltage scaling and multiple low-power modes (Stop, Standby, Low-power Run) with sub-µA retention states, enabled by a dedicated ultra-low-power regulator and BOR with five programmable thresholds. Its clock system integrates six oscillators: HSE (1–24 MHz), LSE (32.768 kHz), HSI (16 MHz ±1%), LSI (37 kHz), MSI (65 kHz–4.2 MHz), and USB PLL (48 MHz).
Analog subsystem includes two rail-to-rail op-amps, two ultra-low-power comparators with window mode and wake-up capability, temperature sensor, VREFINT, and independent 12-bit ADC/DAC paths - all operable down to 1.8 V supply, supporting precision sensing without external signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3, 32-bit, up to 32 MHz - delivers 1.25 DMIPS/MHz for deterministic real-time control in resource-constrained edge nodes. |
| Memory | 256 KB Flash (ECC-protected), 32 KB SRAM, 8 KB EEPROM (ECC-protected) - enables robust firmware storage, data logging, and parameter retention across power cycles. |
| Low-Power Performance | 0.29 µA Standby (3 wakeup pins), 0.44 µA Stop (16 wakeup lines), 8.6 µA Low-power Run - extends battery life to multi-year operation in coin-cell-powered devices. |
| Analog Peripherals | 12-bit ADC (1 Msps, 25 channels), 2×12-bit DACs with buffers, 2×op-amps, 2×ultra-low-power comparators - supports simultaneous sensor acquisition, analog output generation, and threshold monitoring. |
| Integrated LCD Driver | Supports up to 8×40 segments with on-board step-up converter and contrast adjustment - eliminates external bias circuitry for segment LCD displays in portable instrumentation. |
| Security & Connectivity | AES-128 hardware accelerator, USB 2.0 FS (48 MHz PLL), 3×USART, up to 8×SPI (2×I2S), 2×I2C - enables secure firmware updates, human-interface data transfer, and multi-sensor bus interfacing. |
| I/O Capability | 83 fast I/Os (70 tolerant to 5V), all mappable to 16 external interrupt vectors - simplifies PCB layout and supports mixed-voltage peripheral interfacing without level shifters. |
Pinout & Package
LQFP100 (14 × 14 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 | Power supply and ground | Dual 1.65–3.6 V supply rails with separate analog/digital domains - enables noise isolation for precision ADC/DAC operation. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15, PF0–PF15, PG0–PG15 | General-purpose I/Os | 83 total GPIOs; 70 support 5V tolerance - allows direct connection to legacy 5V peripherals and simplifies mixed-voltage system design. |
| PC13–PC15 | RTC oscillator inputs | Connect external 32.768 kHz crystal - provides precise timekeeping with calibration support for metering and timestamped logging. |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 transceiver pins - enables plug-and-play connectivity without external PHY or termination resistors. |
| VLCD | LCD voltage supply | Internal step-up converter output (up to 5.5 V) - powers segment LCDs directly, eliminating external boost ICs and reducing BOM count. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power architecture | 0.29 µA Standby + RTC, 8 µs wakeup - enables rapid sensor sampling bursts while minimizing average current in intermittent-monitoring applications. |
| Hardware AES-128 accelerator | Dedicated cryptographic engine with DMA support - offloads encryption/decryption from CPU, preserving real-time responsiveness during secure OTA updates. |
| True EEPROM with ECC | 8 KB nonvolatile memory with error correction - ensures reliable storage of calibration coefficients, device IDs, and usage counters over 400k write/erase cycles. |
| Integrated LCD controller | 8×40 segment drive, contrast/brightness control, blinking mode - reduces component count and firmware overhead in portable display interfaces. |
| Multi-speed internal RC oscillators | MSI (65 kHz–4.2 MHz), HSI (16 MHz ±1%), LSI (37 kHz) - eliminates need for external crystals in cost-sensitive designs while maintaining timing flexibility. |
Applications
| Smart Utility Metering | Portable Medical Sensors |
|---|---|
Use Scenario: Battery-operated electricity/water/gas meters requiring decade-long field deployment with periodic RF transmission and tamper detection. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, LCD display refresh, secure data logging to EEPROM, and RTC-based billing intervals. Use Value: Sub-µA standby current and integrated AES enable >10-year battery life and regulatory-compliant firmware integrity without external crypto ICs. |
Use Scenario: Handheld ECG, pulse oximeter, or glucose monitor with real-time analog front-end, visual feedback, and Bluetooth LE data upload. IC Role / Device Role / Timing Role: Signal acquisition hub processing op-amp-conditioned biopotentials, driving segment LCD, and managing USB/USART diagnostics. Use Value: On-chip 12-bit ADC (1 Msps), dual DACs, and LCD controller eliminate discrete analog components and reduce PCB area by >30%. |
| Industrial Portable Meters | Asset Tracking Beacons |
Use Scenario: Rugged handheld multimeters, insulation testers, or environmental monitors operating in harsh conditions with wide temperature range (-40°C to +105°C). IC Role / Device Role / Timing Role: Precision measurement engine acquiring thermocouple, RTD, or humidity sensor signals via ADC/DAC/op-amps, with EEPROM-stored calibration data. Use Value: Analog peripherals functional down to 1.8 V and guaranteed operation at 105°C ensure accuracy and reliability in uncontrolled environments. |
Use Scenario: GPS-enabled logistics tags transmitting location and temperature/humidity logs every 15 minutes using coin-cell batteries. IC Role / Device Role / Timing Role: Ultra-low-power coordinator managing GPS module sleep/wake, sensor polling, AES-encrypted payload assembly, and USB/USART debug interface. Use Value: 0.44 µA Stop mode with 16 wakeup lines allows precise scheduling of sensor reads and radio transmissions while maximizing battery longevity. |
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 |
|---|---|---|---|
| STM32L476VGT6 | Higher performance (80 MHz Cortex-M4F), 1 MB Flash, no integrated LCD driver, 2.0 µA Stop mode | Better suited for complex GUI or floating-point math; lacks on-chip LCD bias generation | Select when advanced DSP or larger code footprint is required, but external LCD driver acceptable |
| STM32L072VZT6 | Lower memory (192 KB Flash, 20 KB RAM), no LCD or USB, 0.24 µA Standby, Cortex-M0+ | Targeted at simpler sensor nodes without display or host connectivity | Select for minimal-cost, lowest-power nodes where LCD/USB are unnecessary |
Compared with STM32L162VCT6, STM32L476VGT6 trades LCD integration and ultra-low-power analog features for higher compute throughput, while STM32L072VZT6 reduces feature set and power further but sacrifices display and USB capabilities critical for user-facing metering devices.
Availability
STM32L162VCT6 is available at Aetrix Electronics and suitable for smart utility metering, portable medical sensors, and industrial portable meters requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for STM32L162VCT6 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 STM32L162 series belongs to ST's ultra-low-power MCU product line, engineered specifically for battery-operated instrumentation, metering, and wearable devices demanding extended runtime, integrated analog peripherals, and secure firmware execution.
FAQ
What is the maximum operating frequency and core type of the STM32L162VCT6?
The STM32L162VCT6 uses an Arm Cortex-M3 core with a maximum CPU frequency of 32 MHz, delivering 1.25 DMIPS/MHz (Dhrystone 2.1). It supports dynamic voltage scaling to maintain performance across supply voltages from 1.65 V to 3.6 V, enabling consistent real-time response in varying battery conditions.
Does the STM32L162VCT6 support 5V-tolerant I/Os, and how many?
Yes, 70 of its 83 GPIOs are 5V tolerant - explicitly confirmed in Section 6.3.13 of the DS8928 datasheet. This allows direct interfacing with legacy 5V peripherals such as UART transceivers, SPI sensors, or digital I/O modules without external level-shifting circuitry.
What LCD configurations does the integrated LCD controller support?
The STM32L162VCT6 LCD controller supports up to 8 commons and 40 segments (8×40), with software-configurable duty cycle (1/2, 1/3, 1/4, 1/6, 1/8) and bias (1/2, 1/3). It includes on-chip step-up converter (VLCD output), contrast adjustment, blinking mode, and static segment drive - eliminating external bias generators.
Is hardware AES-128 encryption available, and how is it implemented?
Yes, the STM32L162VCT6 includes a dedicated AES-128 hardware accelerator compliant with FIPS-197. It supports ECB/CBC/CTR modes, operates independently of the CPU, and integrates with DMA for zero-CPU-overhead encryption of EEPROM-stored keys or USB-transmitted payloads.
STM32L162VCT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-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, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O:
- 83
- 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 25x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L162VCT6 FAQ
1.How can I place an order for STM32L162VCT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L162VCT6 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 STM32L162VCT6 reliable?
The price and inventory of STM32L162VCT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L162VCT6 is usually 5 days.
3.What payment methods are accepted for STM32L162VCT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L162VCT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L162VCT6?
STM32L162VCT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L162VCT6 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 STM32L162VCT6?
For technical support, including STM32L162VCT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L162VCT6 requirements.
6.How does Aetrix verify that STM32L162VCT6 is sourced from the original manufacturer or authorized distributors?
All STM32L162VCT6 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 STM32L162VCT6 meets industry standards.
7.What is the process for return or replacement of STM32L162VCT6?
All STM32L162VCT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L162VCT6, 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 STM32L162VCT6 part is unused and in its original packaging.
Return procedure for STM32L162VCT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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