STMicroelectronics STM32L433CCU3TR

Mfr. Part

STM32L433CCU3TR

Manufacturer

STMicroelectronics

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Detailed Description

Ultra‑low‑power 32‑bit microcontroller in the STM32L4 series with an ARM Cortex‑M4 core running up to 80 MHz. It integrates 256 KB Flash, 64 KB SRAM, rich analog and digital peripherals, and wide connectivity options. The device comes in a compact 48‑pin UFQFPN (7x7 mm) package with an exposed pad for better thermal performance. Designed for battery‑powered and space‑constrained designs, operating over −40°C to +125°C.

Key Features

Core: ARM Cortex‑M4, 32‑bit single‑core, up to 80 MHz

Memory: 256 KB Flash; 64 KB SRAM

I/O: 38 configurable GPIOs

Supply voltage: 1.71 V to 3.6 V

Analog: 10× 12‑bit ADC channels; 2× 12‑bit DAC channels

Clocking: Internal oscillator options for low component count

Peripherals: Brown‑out detect/reset, DMA, LCD driver, PWM timers, watchdog (WDT)

Connectivity: CAN bus, I2C, IrDA, LIN bus, MMC/SD, QSPI, SAI, SPI, SWPMI (single‑wire), UART/USART, USB

Packaging: 48‑UFQFPN (7×7 mm) with exposed pad; Tape & Reel (TR)

Mounting: Surface mount (SMT)

Temperature: −40°C to +125°C (TA)

Compliance: RoHS3 compliant

Base product number: STM32L433

Key Advantages

Ultra‑low‑power architecture extends battery life in portable and IoT devices

Strong performance at 80 MHz for responsive control and signal processing

Broad connectivity (CAN, USB, SPI, I2C, UART, LIN, QSPI, SAI) reduces extra components

Integrated ADC/DAC enable precise sensing and actuation without external converters

Internal oscillators simplify design and reduce BOM cost

Small 7×7 mm package with exposed pad improves thermal handling in tight layouts

Wide operating temperature for demanding industrial and automotive environments

Mature STM32 ecosystem, tools, and libraries speed up development

Packaging

48‑UFQFPN (7×7 mm) with exposed pad; Tape & Reel (TR)

Mounting: Surface mount (SMT)

Temperature: −40°C to +125°C (TA)

Compliance: RoHS3 compliant

Base product number: STM32L433

Key Advantages

Ultra‑low‑power architecture extends battery life in portable and IoT devices

Strong performance at 80 MHz for responsive control and signal processing

Broad connectivity (CAN, USB, SPI, I2C, UART, LIN, QSPI, SAI) reduces extra components

Integrated ADC/DAC enable precise sensing and actuation without external converters

Internal oscillators simplify design and reduce BOM cost

Small 7×7 mm package with exposed pad improves thermal handling in tight layouts

Wide operating temperature for demanding industrial and automotive environments

Mature STM32 ecosystem, tools, and libraries speed up development

Packaging

Type: Tape & Reel for automated assembly

Package/case: 48‑UFQFPN (Ultra‑thin Fine‑Pitch QFN), 7×7 mm body, low profile

Material: Copper leadframe, epoxy mold compound, lead‑free plating; fully RoHS3 compliant

Pin configuration: 48 total pins with 38 multifunction GPIOs; dedicated pins for power (VDD, VDDA, VSS), reset, boot, oscillators, and interfaces (USB, SPI, I2C, UART, CAN, etc.)

Thermal characteristics: Exposed center pad enhances heat transfer; connect to ground with multiple thermal vias for best results; rated for −40°C to +125°C ambient; follow ST layout guidelines for thermal impedance

Electrical properties: 1.71–3.6 V supply; robust ESD protection on I/O; internal clock sources; brown‑out detection; stable operation across wide voltage and temperature ranges

Supplier device package: 48‑UFQFPN (7×7)

Lifecycle

Status: Active and in production. Not nearing discontinuation based on current market data.

Equivalent or alternative models (verify pinout and feature match in datasheets):

- STM32L433CCU6 (same family, UFQFPN48, different temperature/reel option)

- STM32L433CCT6 (LQFP48 package alternative if QFN is not preferred)

- STM32L443CCU6 (same series with similar performance and additional features)

- STM32L431CCU6 (lower Flash variant, often pin‑compatible within the same package family)

- STM32L432KCU6 (similar core and features in smaller package; not pin‑compatible)

If you need exact drop‑in replacements or cross‑brand options, contact our sales team via the Y-IC website for tailored guidance and latest availability.

Key Application Areas

Battery‑powered IoT sensors and wireless nodes

Industrial control, CAN and LIN networked modules

Portable medical and wellness devices

Consumer electronics and USB peripherals

Data loggers, environmental monitors, smart meters

Wearables and handheld instruments

LCD segment display products (using the built‑in LCD driver)

Motor control and actuator control using PWM timers

Datasheet

Y-IC hosts the most authoritative datasheet and technical resources for STM32L433CCU3TR. We recommend downloading the datasheet directly from this page on our website for the latest, complete specifications, pinouts, and design guidelines.

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