STMicroelectronics STM32F383RCY6TR

Overview

STM32F383RCY6TR from STMicroelectronics is a 32-bit ARM Cortex-M4 microcontroller with FPU and MPU, operating at up to 72 MHz, featuring 256 KB Flash, 32 KB SRAM, three 12-bit DACs, four ADCs (including 16-bit sigma-delta), two rail-to-rail comparators, and CAN 2.0B interface - deployed in industrial motor control and precision analog signal conditioning systems.

For engineers reviewing the STM32F383RCY6TR datasheet, STM32F383RCY6TR pinout, STM32F383RCY6TR application, or STM32F383RCY6TR equivalent, key selection criteria include 1.8 V core supply tolerance, 5 V-tolerant I/O count (up to 45), integrated capacitive sensing (24 channels), sigma-delta ADC resolution and channel count, and CAN interface timing compliance.

Technical Context

The device integrates an ARM Cortex-M4 core with hardware floating-point unit and memory protection unit, enabling deterministic real-time control with DSP instruction support. It supports dual-supply operation: VDD = 1.8 V ± 8% for digital logic and VDDA = 1.65–3.6 V for analog peripherals.

Its mixed-signal architecture includes three independent 12-bit DACs with configurable output buffers, up to three 16-bit sigma-delta ADCs supporting up to 21 single-ended or 11 differential inputs, and two fast comparators with programmable hysteresis and window mode - all sharing a common analog domain with dedicated VREF+ and VREFSD+ pins.

Key Specifications

Pinout & Package

STM32F383RCY6TR is housed in a WLCSP66 (0.400 mm pitch) ultra-compact wafer-level chip-scale package measuring 3.18 × 3.18 mm, optimized for space-constrained portable and wearable applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303RCT6, STM32F383RCY6TR adds sigma-delta ADCs and DACs essential for closed-loop analog control; versus STM32G474RET6, it retains CAN 2.0B while trading CPU speed for proven analog integration in cost-sensitive motor control designs.

Availability

STM32F383RCY6TR is available at Aetrix Electronics and suitable for industrial motor control, precision sensor signal conditioning, human-machine interface (HMI), and automotive body electronics requiring stable component supply and long-term production continuity.

Supply support for STM32F383RCY6TR 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, delivering silicon solutions for automotive, industrial, and consumer markets with emphasis on energy efficiency and system integration.

The STM32F3 series targets cost-sensitive, analog-intensive applications - designed to unify high-precision signal acquisition, real-time control, and connectivity in a single Cortex-M4-based platform.

FAQ

What is the maximum operating frequency and core type of STM32F383RCY6TR?

The STM32F383RCY6TR features an ARM Cortex-M4 core with hardware FPU and MPU, operating at a maximum frequency of 72 MHz. This frequency is achieved using the internal PLL with HSE or HSI clock sources, and the core delivers 1.25 DMIPS/MHz (Dhrystone 2.1). The FPU enables efficient single-precision floating-point computation essential for motor control and digital filtering.

Does STM32F383RCY6TR support 5 V-tolerant I/Os, and how many are available?

Yes, STM32F383RCY6TR supports 5 V-tolerant I/Os on up to 45 pins - specifically across ports PA, PB, PC, PD, and PE. These pins tolerate 5 V inputs while operating from a 1.8 V VDD supply, eliminating external level shifters in mixed-voltage systems. Tolerance is verified per IEC 61000-4-2 ESD testing and applies only when VDD ≥ 2.0 V.

What analog peripherals are integrated, and what are their key resolution and channel capabilities?

The device integrates one 12-bit, 1 µs ADC (up to 16 channels), three 16-bit sigma-delta ADCs (up to 21 single-ended or 11 differential channels), three 12-bit DACs, and two rail-to-rail comparators. The sigma-delta ADCs provide 92 dB SNR and built-in digital filtering, while DACs feature configurable output buffers and monotonicity guaranteed across full temperature range (–40°C to +105°C).

Is CAN interface supported, and what version and features does it implement?

Yes, STM32F383RCY6TR includes a CAN 2.0B Active interface compliant with ISO 11898-1. It supports bit rates up to 1 Mbit/s, has dedicated TX/RX FIFOs, automatic retransmission, and time-triggered communication mode. The peripheral connects to PD0 (CAN_RX) and PD1 (CAN_TX) and supports loopback self-test and bus-off recovery without CPU intervention.