STMicroelectronics STM32F070F6P6TR

Overview

STM32F070F6P6TR from STMicroelectronics is an ARM® Cortex®-M0 32-bit microcontroller with 32 KB flash, 6 KB SRAM, USB 2.0 Full-Speed interface, 12-bit ADC (1.0 µs conversion), and operates from 2.4–3.6 V supply. It integrates 11 timers-including one advanced-control timer for six-channel PWM-and supports up to 51 fast I/Os with 5V tolerance, targeting cost-sensitive industrial control and USB-enabled sensor nodes.

For engineers reviewing the STM32F070F6P6TR datasheet, STM32F070F6P6TR pinout, STM32F070F6P6TR application, or STM32F070F6P6TR equivalent, key selection criteria include USB FS integration without external PHY, 5V-tolerant GPIO count in TSSOP20, real-time clock with alarm, low-power Stop/Standby modes, and compatibility with STM32CubeMX toolchain for rapid firmware deployment.

Technical Context

The STM32F070F6P6TR implements a single-core Arm Cortex-M0 CPU running at up to 48 MHz, paired with an integrated 8 MHz RC oscillator and x6 PLL for precise clock generation. Its memory subsystem includes 32 KB of embedded flash with error correction and 6 KB of SRAM with hardware parity checking-enabling robust operation in noise-prone environments.

Power management features include POR/PDR circuitry, programmable voltage scaling, and three low-power modes (Sleep, Stop, Standby) with sub-1 µA standby current and RTC retention. The USB 2.0 FS interface supports Battery Charging Detection (BCD) and Link Power Management (LPM), enabling self-powered peripheral designs without external USB transceivers.

Key Specifications

Pinout & Package

TSSOP20 package (6.4 × 4.4 mm, 0.65 mm pitch), RoHS-compliant and ECOPACK®2 certified. Pinout validated per STMicroelectronics DS10697 Rev 4 Figure 3 and Table 10.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F042F4P6, the STM32F070F6P6TR adds integrated USB FS transceiver and 5V-tolerant I/Os-reducing system BOM and layout complexity. Against STM32F070CBT6, it trades flash/SRAM capacity and GPIO count for minimal footprint and lower unit cost in volume production.

Availability

STM32F070F6P6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, USB human interface devices, smart power switches, and IoT edge gateway modules requiring stable component supply across multi-year production cycles.

Supply support for STM32F070F6P6TR 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, designing and manufacturing microcontrollers, power management ICs, MEMS, and automotive-grade components since 1987.

The STM32F0 series targets cost-sensitive, low-power embedded applications requiring Arm Cortex-M0 performance with rich analog and connectivity peripherals-optimized for industrial controls, consumer electronics, and smart home devices.

FAQ

Does STM32F070F6P6TR support USB device enumeration without external components?

Yes. The part integrates a full-speed USB 2.0 transceiver with internal termination resistors and BCD v1.2 compliance. When VBUS is detected and USB_DP/DM are correctly routed with 90 Ω differential impedance, it enumerates as a standard USB device (e.g., HID or CDC) using only passive decoupling capacitors-no external PHY or resistors required.

What is the maximum operating frequency of the internal HSI oscillator?

The internal 8 MHz RC oscillator (HSI) has a typical accuracy of ±1% over temperature and supply voltage, and supports PLL multiplication up to 48 MHz. It is factory-trimmed and can be re-calibrated via the RCC_HSICALIBR register using an external reference clock, enabling reliable clock source for USB and real-time applications without crystal.

Can PA2 and PA3 be used simultaneously for USART2 and USB functions?

No. PA2 and PA3 are multiplexed between USART2_TX/RX and USB_DM/DP. They cannot operate concurrently in both roles. During USB operation, these pins are dedicated to differential signaling; for UART debug, USB must be disabled and the pins remapped to alternate function mode via GPIOA_AFRH register.

Is the TSSOP20 package of STM32F070F6P6TR suitable for reflow soldering?

Yes. The TSSOP20 package complies with JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) and supports standard lead-free reflow profiles (peak 260 °C, 10-second dwell). STMicroelectronics specifies thermal profiles in Application Note AN4828, and the package's 0.65 mm pitch is compatible with automated SMT assembly lines using 25 µm stencil apertures.