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STMicroelectronics STM32L162ZDT6
- Part No.:
- STM32L162ZDT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
STM32L162ZDT6.pdf
- Description:
- IC MCU 32BIT 384KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,113
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Product details
Overview
STM32L162ZDT6 from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M3 microcontroller featuring 384 KB Flash, 48 KB SRAM, 12 KB EEPROM with ECC, 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 targets battery-powered industrial sensors and portable medical devices requiring long runtime and secure data handling.
For engineers reviewing the STM32L162ZDT6 datasheet, STM32L162ZDT6 pinout, STM32L162ZDT6 application, or STM32L162ZDT6 equivalent, key selection considerations include its 116 fast I/Os (102 5V-tolerant), ultra-low-power Stop mode (0.475 µA), 12-bit ADC (1 Msps, up to 40 channels), dual 12-bit DACs, and LQFP144 package compatibility with LCD and USB peripheral integration.
Technical Context
This MCU implements dynamic voltage scaling and multiple low-power modes-Standby (305 nA), Stop (0.475 µA), and Low-power Run (11 µA)-with sub-8 µs wakeup latency. Its memory subsystem includes dual-bank Flash enabling Read-While-Write (RWW) and true EEPROM with ECC for robust data logging in field-deployed equipment.
The analog subsystem integrates three operational amplifiers, two ultra-low-power comparators with window mode and wakeup capability, and a temperature sensor with calibrated VREFINT reference-enabling precision sensor signal conditioning without external components in compact wearable designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M3, 32-bit, up to 32 MHz (1.25 DMIPS/MHz); enables deterministic real-time control in resource-constrained edge nodes. |
| Memory | 384 KB Flash (dual-bank, ECC), 48 KB SRAM, 12 KB EEPROM (ECC); supports firmware updates with RWW and secure nonvolatile parameter storage. |
| Power Modes | Stop mode: 0.475 µA (16 wakeup lines); Standby: 305 nA (3 wakeup pins); enables multi-year battery life in metering and IoT endpoints. |
| Analog Peripherals | 12-bit ADC (1 Msps, 40 ch), 2×12-bit DAC (buffered), 3×Op-Amps, 2×ULP comparators; allows full-signal-chain integration for sensor fusion and closed-loop control. |
| Connectivity | USB 2.0 FS (48 MHz PLL), 5×USART, up to 8×SPI (incl. 2×I2S), 2×I2C, SDIO; supports wired data upload, wireless co-processor interfacing, and memory expansion. |
| LCD Driver | 8×40 segment driver with on-board step-up converter and contrast adjustment; eliminates external bias supply in portable display applications. |
| Security | AES-128 hardware accelerator + 96-bit unique ID + memory protection unit (MPU); meets basic firmware integrity and data confidentiality requirements for certified medical devices. |
Pinout & Package
LQFP144 (20 × 20 mm) package with 116 user I/Os (102 5V-tolerant), all mappable to 16 external interrupt vectors. Pin functions include dedicated LCD segment/common drivers, USB D+/D−, VBAT backup supply, and multiple clock inputs (HSE, LSE, HSI, LSI, MSI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power/ground | Core and I/O supply (1.65–3.6 V); separate VDDA/VSSA required for analog accuracy down to 1.8 V operation. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | 116 total GPIOs; 102 support 5V tolerance-enables direct interfacing with legacy logic and industrial sensors without level shifters. |
| PC13–PC15 | RTC/LSE interface | Dedicated pins for 32.768 kHz crystal and RTC backup domain; supports tamper detection and calendar functions in power-loss scenarios. |
| PD0–PD1 | USB D+/D− | Full-speed USB 2.0 physical layer; internal transceiver eliminates need for external PHY in host/peripheral configurations. |
| PF0–PF15 | LCD segment/common | Drives up to 8 commons and 40 segments; integrated charge pump delivers adjustable LCD bias voltage from single supply. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Stop mode | 0.475 µA with 16 wakeup lines-enables rapid event-driven wakeups while preserving RAM and register state in energy-harvesting systems. |
| Hardware AES-128 accelerator | Dedicated cryptographic engine offloading CPU; reduces encryption latency by >10× vs. software-only implementation for secure OTA updates. |
| True EEPROM with ECC | 12 KB of byte-erasable, endurance-rated (100k cycles) nonvolatile storage with error correction-replaces external serial EEPROM in calibration-critical instruments. |
| Integrated LCD step-up converter | On-chip DC-DC boost circuit generating programmable LCD bias voltage; eliminates external charge pump IC and saves PCB area in handheld displays. |
| Flexible clock system | Multiple sources (HSE/LSE/HSI/LSI/MSI) + PLL for USB and CPU; allows dynamic clock switching to minimize active power during burst-mode sensing. |
Applications
| Smart Utility Meter | Portable ECG Monitor |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with LCD display, tamper detection, and periodic RF data upload. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, LCD refresh, RTC-based billing intervals, and secure firmware updates via USB. Use Value: Ultra-low Stop current (0.475 µA) extends 10-year battery life; integrated AES-128 secures consumption data against replay attacks during transmission. |
Use Scenario: Handheld, single-lead ECG device with analog front-end, real-time waveform display, and Bluetooth LE data streaming. IC Role / Device Role / Timing Role: Signal acquisition hub digitizing conditioned biopotential signals, driving segmented LCD, and buffering data for wireless transmission. Use Value: On-chip op-amps and 12-bit ADC (1 Msps) enable high-fidelity analog signal chain; LCD driver with contrast control ensures readability under variable ambient light. |
| Industrial Wireless Sensor Node | Asset Tracking Beacon |
Use Scenario: Temperature/humidity/pressure node deployed in remote locations, powered by coin cell or energy harvester, reporting via LoRaWAN. IC Role / Device Role / Timing Role: Low-duty-cycle controller waking periodically to sample sensors, process data, and transmit via UART-connected radio module. Use Value: 305 nA Standby mode with 3 wakeup pins minimizes quiescent drain; 12 KB EEPROM stores calibration coefficients and event logs across power cycles. |
Use Scenario: GPS-denied indoor asset tracker using BLE beacons and inertial motion detection for warehouse logistics. IC Role / Device Role / Timing Role: Motion-triggered logger capturing accelerometer data, timestamping events with RTC, and updating segmented display for visual status feedback. Use Value: 8 µs wakeup time ensures immediate response to movement; capacitive sensing (up to 34 channels) enables touch-based UI without mechanical buttons. |
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 |
|---|---|---|---|
| STM32L476RG | Higher performance (80 MHz Cortex-M4F), larger Flash (1 MB), no integrated LCD driver, higher active current (80 µA/MHz) | Better suited for complex GUI or floating-point math; lacks on-chip LCD bias generation-requires external display controller. | Select when computational throughput outweighs LCD integration and lowest standby power. |
| STM32L073RZ | Lower memory (64 KB Flash, 20 KB RAM), no USB, no LCD driver, lower max frequency (32 MHz), smaller package (LQFP64) | Targeted at cost-sensitive, minimal-feature nodes; cannot support USB firmware updates or local display interfaces. | Select only if LCD and USB are unnecessary and BOM cost reduction is critical over feature headroom. |
Compared with STM32L162ZDT6, STM32L476RG offers greater processing headroom but sacrifices ultra-low-power LCD integration, while STM32L073RZ reduces cost and size at the expense of USB connectivity and display capability-making STM32L162ZDT6 optimal for balanced low-power, secure, and display-enabled edge devices.
Availability
STM32L162ZDT6 is available at Aetrix Electronics and suitable for smart utility meters, portable medical monitors, industrial wireless sensor nodes, and asset tracking beacons requiring stable component supply and long-term lifecycle assurance.
Supply support for STM32L162ZDT6 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 automotive-grade components.
The STM32L1 series targets ultra-low-power embedded applications-specifically engineered for battery-operated devices demanding extended runtime, robust security, and integrated peripherals like LCD and USB without external support components.
FAQ
What is the maximum operating temperature range for STM32L162ZDT6?
The STM32L162ZDT6 is rated for operation from –40°C to +105°C ambient temperature. This extended industrial temperature range is validated per ST's production test specifications and supports deployment in harsh environments such as outdoor utility infrastructure and industrial control cabinets where thermal cycling is common.
Does STM32L162ZDT6 support hardware-based secure boot?
STM32L162ZDT6 does not implement a dedicated secure boot ROM or immutable root-of-trust. It provides memory protection unit (MPU), AES-128 hardware acceleration, and read-out protection (RDP) levels-but secure boot must be implemented in firmware using these primitives, not as a factory-configured hardware feature.
Can the integrated LCD driver operate without an external capacitor?
No. The on-chip LCD step-up converter requires an external 1 µF ceramic capacitor between VLCD and VSS to stabilize the boosted voltage rail. Omitting this capacitor results in unstable contrast, flickering, or failure to drive segments-per Section 3.10 and Table 6.3.24 of DS8669 Rev 11.
How many I/O pins support 5V tolerance on STM32L162ZDT6?
Exactly 102 I/O pins on the STM32L162ZDT6 are 5V-tolerant, as confirmed in Section 2.1 and Table 1 of DS8669 Rev 11. These include all GPIOs except those assigned to analog functions (ADC/DAC/Op-Amp inputs) and specific debug pins (SWDIO/SWCLK), which are strictly 3.3 V compatible.
STM32L162ZDT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-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:
- 115
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 12K x 8
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 40x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L162ZDT6 FAQ
1.How can I place an order for STM32L162ZDT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L162ZDT6 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 STM32L162ZDT6 reliable?
The price and inventory of STM32L162ZDT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L162ZDT6 is usually 5 days.
3.What payment methods are accepted for STM32L162ZDT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L162ZDT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L162ZDT6?
STM32L162ZDT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L162ZDT6 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 STM32L162ZDT6?
For technical support, including STM32L162ZDT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L162ZDT6 requirements.
6.How does Aetrix verify that STM32L162ZDT6 is sourced from the original manufacturer or authorized distributors?
All STM32L162ZDT6 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 STM32L162ZDT6 meets industry standards.
7.What is the process for return or replacement of STM32L162ZDT6?
All STM32L162ZDT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L162ZDT6, 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 STM32L162ZDT6 part is unused and in its original packaging.
Return procedure for STM32L162ZDT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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