STMicroelectronics STM32F334C8Y6TR

Overview

STM32F334C8Y6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 MCU with FPU, 64 KB Flash, 16 KB SRAM, and integrated high-resolution timer (HRTIM1) delivering 217 ps timing resolution. It integrates three 12-bit DACs, two ADCs (0.20 µs conversion), one rail-to-rail op-amp, and three ultra-fast comparators - optimized for digital power control in switched-mode power supplies and motor drives.

For engineers reviewing the STM32F334C8Y6TR datasheet, STM32F334C8Y6TR pinout, STM32F334C8Y6TR application, or STM32F334C8Y6TR equivalent, key selection criteria include HRTIM precision for PWM dead-time control, analog peripheral supply range (2.4–3.6 V), CAN 2.0B interface support, and UFQFPN32 (5 × 5 mm) package compatibility with space-constrained power electronics layouts.

Technical Context

The device implements a tightly coupled analog-digital architecture: HRTIM1 provides six 16-bit counters with synchronized PWM outputs, five fault inputs, and sub-nanosecond resolution for real-time power stage protection. Its op-amp supports programmable gain amplifier (PGA) mode with all terminals accessible, enabling sensor signal conditioning without external components.

Dual ADCs operate at up to 21 channels with selectable 6/8/10/12-bit resolution and differential input capability; DACs feature monotonicity and ±1 LSB INL over full temperature range. The CAN interface complies with ISO 11898-1:2015 and supports time-triggered communication essential for deterministic power system coordination.

Key Specifications

Pinout & Package

STM32F334C8Y6TR uses the UFQFPN32 package: 32-pin, 5 × 5 mm body, 0.5 mm pitch, exposed thermal pad, RoHS-compliant and ECOPACK®2 certified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital power control applications.

Compared with STM32F334R8T6, the C8Y6TR offers superior space efficiency and identical HRTIM functionality in a 32-pin form factor; versus STM32G431KB6, it retains CAN 2.0B and third DAC - critical for modular power systems requiring inter-unit coordination and multi-reference analog control.

Availability

STM32F334C8Y6TR is available at Aetrix Electronics and suitable for digital power supplies, motor inverters, and industrial UPS systems requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.

Supply support for STM32F334C8Y6TR 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 specializing in microcontrollers, analog ICs, and power devices, with strong focus on industrial, automotive, and power management markets.

The STM32F3 series targets high-performance analog-intensive embedded control, specifically engineered for digital power conversion, motor control, and precision sensing applications demanding tight integration of timing, analog, and communication peripherals.

FAQ

What is the maximum operating frequency of the STM32F334C8Y6TR's HRTIM1 timer?

The HRTIM1 timer achieves 217 ps resolution at its base clock frequency, corresponding to a 4.6 GHz effective timing granularity. Its six 16-bit counters run synchronously from the system clock domain (up to 72 MHz), with prescaler and timer period registers enabling precise PWM edge placement down to sub-nanosecond increments - verified per DS9994 Rev 9 Section 3.14.1 and Table 54.

Does the STM32F334C8Y6TR support hardware-accelerated cryptographic functions?

No. The STM32F334C8Y6TR does not include a dedicated cryptographic processor or hardware AES/SHA engines. It relies on software libraries for encryption tasks. This aligns with its target use case in real-time power control rather than secure communications - confirmed by absence of CryptoCell, HASH, or RNG peripherals in the DS9994 functional overview and memory map sections.

Can the integrated op-amp be used as a unity-gain buffer without external components?

Yes. The single rail-to-rail op-amp supports unity-gain buffer configuration with all terminals accessible (non-inverting input, inverting input, output). It operates with VDDA = 2.4–3.6 V and delivers 10 MHz gain-bandwidth product - validated in DS9994 Section 3.12 and Table 6.3.22, enabling direct buffering of DAC outputs or sensor signals without external resistors or capacitors.

Is the UFQFPN32 package of the STM32F334C8Y6TR compatible with standard reflow soldering profiles?

Yes. The UFQFPN32 package is qualified for standard lead-free reflow processes per JEDEC J-STD-020. Peak temperature tolerance is 260 °C for 30 seconds, with thermal resistance (θ_JA) of 52 °C/W - specified in DS9994 Section 7.6 and ST's packaging reliability report AN4969, ensuring compatibility with automated SMT assembly lines.