STMicroelectronics STM32G491CCU6

Mfr. Part

STM32G491CCU6

Manufacturer

STMicroelectronics

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Detailed Description

32-bit ARM Cortex-M4F microcontroller running up to 170 MHz with single-precision floating-point unit. 256 KB embedded Flash and 112 KB SRAM. 48-pin UFQFPN 7x7 mm package with exposed thermal pad. 42 configurable I/Os. Rich analog and digital peripherals including 19-channel 12-bit ADC and 4-channel 12-bit DAC. Wide supply range 1.71 V to 3.6 V. Integrated internal oscillator. Industrial temperature range -40°C to +85°C. Part of the STM32G4 performance-and-analog-focused series.

Key Features

Core ARM Cortex-M4F, 170 MHz, single-core 32-bit

Memory 256 KB Flash, 112 KB SRAM

I/O 42 GPIOs with flexible alternate functions

Analog 19 x 12-bit ADC channels, 4 x 12-bit DAC channels

Peripherals Brown-out detect and reset, Power-on reset, Watchdog, DMA, PWM

Connectivity CAN, I2C, IrDA, IRTIM, LIN, SAI, SPI, UART and USART, USB Full-Speed device

Clock Internal oscillator with multiple clock sources supported

Supply voltage 1.71 V to 3.6 V

Package 48-pin UFQFPN 7x7 mm with exposed pad

Operating temperature -40°C to +85°C

Compliance RoHS3 compliant

Series STM32G4 family

Base product number STM32G491

Key Advantages

Strong compute performance with FPU at low power for control, signal processing, and real-time tasks

Rich analog front end with high-channel ADC and multi-channel DAC for sensing, control, and instrumentation

Broad interface options to connect to automotive and industrial networks and consumer peripherals

Wide voltage and temperature ranges for robust operation in harsh environments

Compact 7x7 mm package with exposed pad for improved thermal performance and smaller PCB footprint

Mature STM32 ecosystem with extensive libraries, examples, and toolchain support, reducing development time

Packaging

Type UFQFPN, ultra-thin quad flat package no-lead

Material Molded, lead-free, RoHS3 compliant

Size 7 x 7 mm body, low profile thickness

Pin count and layout 48 pins, perimeter contacts, central exposed thermal pad to PCB

Mounting Surface mount technology, reflow compatible

Thermal characteristics Exposed pad improves heat spreading and grounding when soldered to PCB; supports industrial -40°C to +85°C ambient

Electrical properties Wide 1.71 V to 3.6 V supply, ESD-protected I/O, internal oscillator available

Supplier device package 48-UFQFPN 7x7

Factory tray packaging, additional tape-and-reel options may be available upon request

Lifecycle

Status Active in STMicroelectronics’ current portfolio and widely used in new designs

Not nearing discontinuation based on publicly available information

Equivalent or alternative models

- Same MCU, different package STM32G491CCT6 LQFP-48 version for through-hole-compatible assembly and different mechanical constraints

- Same series, similar feature set STM32G473 and STM32G474 families offer comparable core and richer timers or memory options for power control and motor control use cases

- Same pin count family options Other STM32G4 48-pin devices such as STM32G431 and STM32G441 for cost or feature optimization

Important Always verify pinout, peripherals, and memory alignment for drop-in or software compatibility by checking the latest datasheet

If you need a fully verified cross-list for your design, contact our sales team via the Y-IC website for detailed guidance and availability

Key Application Areas

Digital power and power conversion SMPS, inverters, PFC, UPS

Motor control BLDC, PMSM, stepper drives with advanced PWM and control loops

Industrial automation PLC modules, sensors, actuators, HMI

Automotive and transportation CAN and LIN nodes, gateway devices, body control modules

Test and measurement Data acquisition, instrumentation, signal conditioning

Consumer and prosumer devices USB-enabled peripherals, audio via SAI, IrDA interfaces

IoT and edge nodes Sensor fusion and low-power real-time processing with multiple serial buses

Datasheet

Y-IC hosts the most authoritative and up-to-date datasheet for STM32G491CCU6 on our product page. Download the datasheet now to confirm pinout, electrical limits, timing, package drawings, and migration options.

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