STMicroelectronics STM32F302ZET6

Overview

STM32F302ZET6 from STMicroelectronics is a 32-bit ARM® Cortex®-M4 microcontroller with FPU, operating at up to 72 MHz, featuring 512 KB Flash, 64 KB SRAM (with HW parity on first 32 KB), and integrated analog peripherals including two 12-bit ADCs (18-channel, 0.20 µs conversion), one 12-bit DAC, four rail-to-rail comparators, and two operational amplifiers usable in PGA mode - deployed in motor control, digital power conversion, and industrial sensing systems.

For engineers reviewing the STM32F302ZET6 datasheet, STM32F302ZET6 pinout, STM32F302ZET6 application, or STM32F302ZET6 equivalent, key selection criteria include its dual ADC architecture with selectable 6/8/10/12-bit resolution, flexible analog supply ranges (VDDA 2.0–3.6 V, VREFOPAMP 2.4–3.6 V), CAN 2.0B interface, and LQFP144 package with 115 fast I/Os (several 5 V-tolerant).

Technical Context

The STM32F302ZET6 implements an ARM Cortex-M4 core with hardware FPU, single-cycle MAC, and DSP instruction set, coupled with a memory protection unit (MPU) for secure embedded execution. Its analog subsystem integrates two independent ADCs with interleaved sampling capability, a dedicated 12-bit DAC channel, and op-amps configurable as programmable gain amplifiers with external feedback paths.

Clock management includes four oscillator sources (4–32 MHz HSE, 32 kHz LSE, 8 MHz HSI with PLL, 40 kHz LSI), enabling precise timing for real-time control loops. The interconnect matrix decouples peripheral bus arbitration from CPU access, supporting concurrent high-bandwidth operations across FSMC, USB, and multiple SPI/I2C/USART interfaces.

Key Specifications

Pinout & Package

LQFP144 package (20 × 20 mm, 0.5 mm pitch) with exposed thermal pad; 144-pin square outline, lead-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32F302ZET6, the STM32F303ZET6 improves analog measurement fidelity and adds bootloader security, while the STM32G474RET6 delivers significantly higher compute throughput and analog acceleration - both omit the FSMC found in the F302, making them unsuitable for designs requiring external NOR/PSRAM display buffers or legacy memory expansion.

Availability

STM32F302ZET6 is available at Aetrix Electronics and suitable for motor control systems, digital power supplies, industrial HMIs, and condition monitoring sensor nodes requiring stable component supply across extended production lifecycles.

Supply support for STM32F302ZET6 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 STM32F3 series targets cost-sensitive, analog-intensive embedded applications - combining high-precision mixed-signal peripherals with Cortex-M4 performance for industrial control, digital power, and motor drive solutions.

FAQ

What is the maximum operating frequency and supported voltage range for the STM32F302ZET6?

The STM32F302ZET6 operates at up to 72 MHz with a core supply (VDD) and analog supply (VDDA) range of 2.0 V to 3.6 V. It includes a programmable voltage detector (PVD) for brown-out monitoring and supports low-power modes (Sleep, Stop, Standby) with RTC retention powered by VBAT. All specifications are validated per ST's production data sheet DocID026900 Rev 4.

Does the STM32F302ZET6 support hardware cryptographic acceleration?

No, the STM32F302ZET6 does not include hardware cryptographic accelerators such as AES, SHA, or PKA engines. It relies on software libraries for encryption tasks. For hardware crypto support, ST recommends the STM32L4 or STM32H7 series. This absence is confirmed in the device summary and peripheral feature tables of the official datasheet.

Can the op-amps in the STM32F302ZET6 be used as instrumentation amplifiers?

The two integrated op-amps support PGA (programmable gain amplifier) mode with external resistors, but lack dedicated instrumentation amplifier topology (three-op-amp structure with matched gain-setting resistors). They can be configured as difference amplifiers with external components, though common-mode rejection ratio (CMRR) depends on external resistor matching - not guaranteed by internal design.

Is the STM32F302ZET6 qualified for automotive applications?

No, the STM32F302ZET6 is specified for industrial temperature range (–40 °C to +85 °C) and is not AEC-Q100 qualified. ST offers the pin-compatible STM32F302x8 automotive variant (e.g., STM32F302R8T6Y) for automotive use, which undergoes additional stress testing and screening per AEC-Q100 Grade 2 requirements.