STMicroelectronics STM32F107VCT7

Overview

STM32F107VCT7 from STMicroelectronics is a 32-bit ARM Cortex-M3 microcontroller in the Connectivity line, featuring 256 KB Flash, 64 KB SRAM, dual CAN 2.0B interfaces, USB OTG FS with on-chip PHY, and a 10/100 Ethernet MAC with IEEE 1588 support - deployed in industrial gateways requiring real-time protocol bridging and deterministic network timing.

For engineers reviewing the STM32F107VCT7 datasheet, STM32F107VCT7 pinout, STM32F107VCT7 application, or STM32F107VCT7 equivalent, key selection criteria include Ethernet MAC DMA bandwidth, dual-CAN arbitration latency, USB OTG host/device mode switching time, and 72 MHz real-time interrupt response under concurrent peripheral load.

Technical Context

The device integrates a single ARM Cortex-M3 core running at up to 72 MHz with hardware division and single-cycle multiply, coupled with nested vectored interrupt controller (NVIC) supporting 68 maskable interrupts. Its memory subsystem includes 256 KB of embedded Flash with 0-wait-state access and 64 KB of general-purpose SRAM with parity checking.

Connectivity peripherals are tightly coupled to dedicated DMA channels: the 10/100 Ethernet MAC uses a 4 KB SRAM buffer and supports MII/RMII physical layer interfaces with IEEE 1588 timestamping logic; both CAN controllers feature 512 bytes of dedicated SRAM for message RAM and support 2.0B Active protocol with programmable bit timing.

Key Specifications

Pinout & Package

LQFP100 package (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, rated for industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F107VCT7, the VBT6 offers identical peripheral set at reduced Flash density for cost-constrained deployments, while the F407VGT6 delivers 2× CPU performance and expanded memory for advanced protocol processing - both maintain pin-for-pin compatibility but differ in firmware scalability and computational headroom.

Availability

STM32F107VCT7 is available at Aetrix Electronics and suitable for industrial gateways, automated test equipment, energy management controllers, and building automation nodes requiring stable component supply across extended product lifecycles.

Supply support for STM32F107VCT7 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, specializing in microcontrollers, power management, and automotive-grade ICs with broad industrial certification coverage.

The STM32F107xx series belongs to the Connectivity line - designed specifically for embedded networking applications demanding integrated Ethernet, dual CAN, and USB OTG in resource-constrained industrial environments.

FAQ

Does STM32F107VCT7 support IEEE 1588 Precision Time Protocol in hardware?

Yes - the integrated 10/100 Ethernet MAC includes dedicated hardware timestamping logic that captures precise transmit/receive timestamps at the MAC layer with sub-microsecond resolution. This enables full PTP slave and boundary clock implementations without software timestamping overhead or external timing ICs.

What is the maximum achievable CAN bit rate with STM32F107VCT7?

The dual CAN controllers support bit rates up to 1 Mbps under standard CAN 2.0B operation. Achievable rate depends on APB1 clock configuration and sample point tuning; at 36 MHz APB1, optimal configuration yields stable 1 Mbps communication with >75% sample point and robust noise immunity per ISO 11898-1.

Can STM32F107VCT7 operate as a USB OTG host without external PHY components?

Yes - the on-chip USB OTG FS PHY eliminates the need for external transceivers. The device supports full-speed host, device, and OTG roles using only PA11 (D−) and PA12 (D+) pins, with built-in HNP/SRP/ID detection enabling dynamic role switching in portable diagnostic tools.

Is the Ethernet MAC capable of simultaneous MII and RMII operation?

No - MII and RMII are mutually exclusive physical layer modes selected at reset via BOOT0/BOOT1 pins and configured in the SYSCFG_PMC register. The same pin group (PA1–PA7, PC1–PC5, PD8–PD15) serves both interfaces, requiring hardware design commitment to one PHY type per board revision.