STM32L562ZET6 - 110MHz Cortex-M33 512KB MCU | STMicroelectronics
MPN: STM32L562ZET6 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.49 | $9.49 |
| 10 | $8.9 | $89.00 |
| 100 | $8.25 | $825.00 |
| 500 | $7.65 | $3,825.00 |
| 1,000 | $7.1 | $7,100.00 |
STM32L562ZET6 Overview
An ARM Cortex-M33 microcontroller is a modern 32-bit embedded processor core that belongs to the ARM Cortex-M family, positioned above the Cortex-M0/M3/M4 in feature set. The Cortex-M33 implements the Armv8-M architecture with optional TrustZone hardware security, which enforces isolation between secure and non-secure software domains. Within the system hierarchy, the MCU integrates the CPU core, memory, and peripherals into a single chip, serving as the main controller in embedded power-management and security architectures.
Key features of the STM32L562ZET6 include hardware cryptographic accelerators supporting AES, RSA, and ECC, a true random number generator (TRNG), and a rich analog peripheral set with a 12-bit ADC, 12-bit DAC, and multiple comparators. These enable secure boot, encrypted communication, and direct sensor interfacing without external security chips.
The device is built on STMicroelectronics ultra-low-power 40 nm technology, consuming only 19 uA/MHz in Run mode with dynamic voltage scaling. Multiple low-power modes include Sleep, Low-power Run, Low-power Sleep, Stop, and Standby, with typical Standby current of 100 nA. The DSP instructions and hardware FPU accelerate signal processing in power-constrained designs.
Typical applications include secure IoT nodes, smart meters, industrial control systems, medical and wearable devices, where TrustZone protects firmware and data while ultra-low-power modes extend battery life for years.
When designing with this MCU, decouple every VDD pin with a 100 nF capacitor placed close to the pin, and enable TrustZone with secure boot for security-critical firmware. Verify supply sequencing per the ST datasheet.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with pricing as of 2026-09-06.
Drop-in alternatives for STM32L562ZET6 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with STM32L562ZET6 (same form factor and footprint) — differing in Flash Memory, Run Mode Current.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
STM32L562ZGT6
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM32L552ZET6
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.82 / Unit
View Datasheet →STM32L552ZGT6
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM32L562ZET6 Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M33 with TrustZone and FPU |
| Core Size | 32-bit |
| Maximum Clock Frequency | 110 MHz |
| Flash Memory | 512 KB |
| SRAM | 256 KB |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Run Mode Current | 19 uA/MHz (typical) |
| Standby Current | 100 nA (typical) |
| Security | TrustZone for Armv8-M, AES/RSA/ECC crypto accelerator, TRNG |
| ADC Resolution | 12-bit |
| DAC Resolution | 12-bit |
| Comparators | Multiple comparators |
| Low-Power Modes | Sleep, Low-power Run, Low-power Sleep, Stop, Standby |
| Operating Temperature | -40C to +125C |
| Package | 144-LQFP (20x20 mm) |
| Mounting Type | Surface Mount |
| Series | STM32L5 |
STM32L562ZET6 144-lqfp (20x20 mm) Pin Configuration Guide
Pin configuration for STM32L562ZET6 (144-lqfp (20x20 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for STM32L562ZET6.
Refer to the datasheet for full pin configuration.
Typical Applications
STM32L562ZET6 is suitable for 6 applications: Secure IoT Nodes, Smart Meters, Industrial Control Systems, Medical and Wearable Devices, Sensor Interfacing and Data Acquisition, Secure Firmware Update Gateways.
Secure IoT Nodes
The STM32L562ZET6 fits secure IoT endpoints because TrustZone for Armv8-M, AES/RSA/ECC hardware accelerators, and a TRNG deliver certificate-based authentication and encrypted links without an external secure element. Its 19 uA/MHz run current and 100 nA standby current suit coin-cell or battery nodes that wake periodically to sample sensors and transmit. In a typical design the MCU reads a digital sensor over I2C, encrypts the payload with AES, and pushes it over an external radio module via SPI or UART. Keeping the radio and MCU in Stop mode between transmissions lets a battery-powered node last years; the trade-off is that LQFP-144 GPIO count may exceed simple node needs, but it enables future sensor expansion on one PCB.
Recommended
Smart Meters
Smart electricity, gas, and water meters require long service life, secure firmware updates, and accurate analog front ends - all addressed by the STM32L562ZET6. The 12-bit ADC and multiple comparators sample current and voltage channels for metrology, while the crypto accelerator and TrustZone protect DLMS/COSEM communications and enable authenticated over-the-air firmware updates across a 10-15 year deployment. Standby current of about 100 nA keeps battery-backed RTC and tamper detection alive during power outages. The 144 GPIOs of the LQFP-144 package interface LCDs, valve controls, and multiple communication interfaces simultaneously. Designers should budget flash for the secure boot chain within the 512 KB, or choose the 1 MB STM32L562ZGT6 drop-in if the firmware image grows.
Recommended
Industrial Control Systems
In industrial automation, the STM32L562ZET6 serves as a secure field controller combining real-time performance and robust I/O. The 110 MHz Cortex-M33 with DSP instructions and hardware FPU executes control loops and digital filtering (PID, FFT) efficiently, while -40C to +125C operation survives harsh cabinets and outdoor enclosures. TrustZone and the crypto accelerators secure Modbus/TCP-TLS and OPC UA handshake secrets at the edge. The rich LQFP-144 GPIO set drives relays, optocoupled inputs, and multiple RS-485/UART channels concurrently, and the 12-bit ADC monitors motor currents. Dynamic voltage scaling keeps average consumption low in always-on supervisory roles. For security-critical firmware, enable SBSFU secure boot so only authenticated images execute on the line.
Recommended
Medical and Wearable Devices
Portable medical monitors and wearables benefit from the STM32L562ZET6 combination of analog integration, ultra-low power, and data security. The 12-bit ADC and comparators digitize biometric sensor front ends, the FPU accelerates heart-rate and SpO2 algorithms, and TrustZone with AES protects patient data in compliance-sensitive designs. At 19 uA/MHz and roughly 100 nA standby, a small Li-Ion cell supports continuous monitoring between charges; designers should schedule acquisition bursts and exploit Stop 2-type low-power states between samples. The LQFP-144 package offers enough GPIO for multi-sensor arrays plus display and USB interfaces in one MCU. Blood-glucose loggers, ECG patches, and portable diagnostic instruments are representative use cases for this part.
Recommended
Sensor Interfacing and Data Acquisition
The STM32L562ZET6 works well as a data-acquisition hub: its 12-bit ADC with DMA, 12-bit DAC for stimulus generation, and multiple comparators handle multi-channel analog measurement without external converters in many designs. The DSP instructions of the Cortex-M33 core enable on-chip filtering and FFT analysis, reducing host bandwidth requirements. Applications include environmental monitors, condition-based maintenance loggers, and bench instruments that must run on batteries or energy harvesting - the 19 uA/MHz dynamic consumption and 100 nA standby make long sampling intervals affordable. The abundant GPIOs of the 144-LQFP connect SPI/I2C digital sensors alongside the analog channels. Route analog inputs away from switching traces and use the internal VREFINT for ratiometric calibration of measurements.
Recommended
Secure Firmware Update Gateways
As an in-field update gateway, the STM32L562ZET6 authenticates, decrypts, and applies firmware images using its RSA/ECC accelerator for signature verification, AES for payload decryption, and TRNG for key generation. ST's SBSFU (secure boot and secure firmware update) reference solution targets exactly this workflow on the STM32L5 series, and TrustZone isolates the update agent from the application domain so a compromised app cannot overwrite the boot chain. The 512 KB flash hosts dual-bank style staged updates for mid-size images; select the pin-compatible 1 MB STM32L562ZGT6 when images or backup banks exceed 512 KB. Standby current near 100 nA suits battery-backed gateways that wake on schedule or on an RTC/EXTI event to poll an update server.
Recommended
Recommended Products Summary
Engineering reference data for STM32L562ZET6 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32L562ZGT6 | STM32L552ZET6 | STM32L552ZGT6 |
|---|---|---|---|---|
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | Cortex-M33 with TrustZone and FPU, 110 MHz | Cortex-M33 with TrustZone and FPU, 110 MHz | Cortex-M33 with TrustZone and FPU, 110 MHz | Cortex-M33 with TrustZone and FPU, 110 MHz |
| Flash Memory | 512 KB | 1 MB | 512 KB | 1 MB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB |
| Hardware Crypto (AES/RSA/ECC) and TRNG | Yes | Yes | No | No |
| Run Current | 19 uA/MHz (typical) | 19 uA/MHz (typical) | 19 uA/MHz (typical) | 19 uA/MHz (typical) |
| TrustZone | Yes | Yes | Yes | Yes |
Key Differentiators
- Hardware cryptographic accelerators (AES, RSA, ECC) plus TRNG (vs STM32L552ZET6)
- Pin-compatible 1 MB flash upgrade path (vs STM32L562ZGT6)
- Ultra-low-power technology at 19 uA/MHz (vs STM32L476VGT6)
Design Notes
Decouple every VDD/VDDA pin of the STM32L562ZET6 with a 100 nF ceramic capacitor placed within 2-3 mm of the pin, plus one bulk 4.7-10 uF capacitor per supply domain. The 1.71-3.6 V supply tolerance allows direct operation from an LDO fed by a Li-Ion cell. Estimated: with 19 uA/MHz dynamic current, a 110 MHz active duty cycle of 1% plus 100 nA standby yields an average current in the low microamp range - verify against your actual duty cycle for battery-life calculations.
The LQFP-144 package (0.5 mm pitch, 20x20 mm body) requires a fine-pitch solder mask defined pad layout per IPC-7351 conventions - verify footprint against the ST datasheet mechanical drawing before release. Keep the VDDA analog supply on a separate filtered rail (ferrite bead plus 1 uF and 10 nF) to protect the 12-bit ADC from digital switching noise. Provide thermal vias sparingly; the MCU dissipates only a few tens of milliwatts in typical operation, so no heatsink is needed.
Enable TrustZone (TZEN option byte) before committing to a security architecture - changing TZEN later triggers a full flash mass erase, destroying production firmware. Debug authentication restrictions in RDP level 2 are irreversible; develop with RDP 0/1 and only close the device at end of line. Also confirm that your firmware plus SBSFU secure boot chain fits in 512 KB; otherwise switch to the pin-compatible 1 MB STM32L562ZGT6 before layout freeze, since both share the identical footprint.
Compliance Information
STM32L5 series parts are RoHS-compliant and lead-free per ST product pages; the T6 suffix indicates lead-free commercial grade. Explicit REACH, halogen-free, and conflict-minerals declarations were not present in the provided data.