STMicroelectronics STM32F038F6P6TR

Overview

STM32F038F6P6TR from STMicroelectronics is an ARM® Cortex®-M0 32-bit microcontroller with 32 KB Flash, 4 KB SRAM (HW parity), and operating voltage down to 1.8 V. It integrates a 12-bit ADC (1.0 µs conversion), nine timers-including one advanced-control timer with deadtime generation-and communication interfaces including I²C Fast Mode Plus (1 Mbit/s), USART with IrDA/LIN/ISO7816, and SPI (18 Mbit/s). It targets cost-sensitive industrial control and sensor interface applications requiring extended temperature operation (–40 to +105°C).

For engineers reviewing the STM32F038F6P6TR datasheet, STM32F038F6P6TR pinout, STM32F038F6P6TR application, or STM32F038F6P6TR equivalent, key selection criteria include its 1.8 V core supply compatibility, 5 V-tolerant I/Os (up to 25 pins), integrated RTC with alarm/wakeup, SWD debug support, and TSSOP20 package footprint for space-constrained PCB layouts.

Technical Context

The STM32F038F6P6TR implements a single-cycle ARM Cortex-M0 core running at up to 48 MHz via internal 8 MHz RC oscillator with x6 PLL or external 4–32 MHz crystal. Its clock tree includes dedicated 32 kHz LSE for RTC calibration and independent 40 kHz LSI for watchdog timing-enabling precise real-time operation without external timing components.

It features a 5-channel DMA controller servicing peripherals including ADC, timers, and communication interfaces; supports hardware CRC calculation; and provides full interrupt vector mapping across all 38 GPIOs, with 25 pins rated for 5 V tolerance-critical for mixed-voltage system interfacing in industrial I/O modules and smart sensors.

Key Specifications

Pinout & Package

TSSOP20 package (6.5 × 4.4 mm, 0.65 mm pitch), RoHS-compliant and ECOPACK®2 certified, optimized for automated assembly and thermal performance in compact industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F030F4P6, the STM32F038F6P6TR offers critical enhancements for industrial edge nodes: 5 V-tolerant I/Os eliminate external level shifters, and its advanced-control timer enables embedded motor drive without external gate drivers. Versus STM32F042F6P6, it trades USB for lower system cost and reduced EMI sensitivity in electrically noisy environments.

Availability

STM32F038F6P6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter interfaces, motor control actuators, and IoT edge gateway subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for STM32F038F6P6TR 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 analog solutions for industrial, automotive, and consumer markets.

The STM32F0 series delivers entry-level ARM Cortex-M0 performance with industrial-grade reliability, targeting cost-sensitive embedded applications where robustness, low power, and peripheral integration outweigh raw compute throughput.

FAQ

What is the maximum operating frequency of the STM32F038F6P6TR?

The STM32F038F6P6TR achieves a maximum CPU frequency of 48 MHz using its internal 8 MHz RC oscillator with x6 PLL or an external 4–32 MHz crystal. This frequency is fully supported across the full –40 to +105°C temperature range and 1.8 V ±8% supply, as validated in Section 6.3.1 of the official datasheet (DocID026079 Rev 5).

Does the STM32F038F6P6TR support 5 V-tolerant I/Os, and how many pins have this feature?

Yes, the STM32F038F6P6TR supports 5 V-tolerant I/Os on up to 25 pins, including PA0–PA7, PB0–PB1, and several alternate-function pins like USART TX/RX and SPI MOSI/MISO. This capability is explicitly specified in Section 3.7 and Table 44 of the datasheet, enabling direct interfacing with 5 V logic without external level-shifting circuitry.

Can the STM32F038F6P6TR operate from a single 1.8 V supply, and what are the analog supply requirements?

Yes, the STM32F038F6P6TR operates from a single 1.8 V ±8% digital supply (VDD), while its analog domain requires a separate VDDA supply ranging from 2.4 V to 3.6 V. This dual-supply architecture isolates noise-sensitive analog circuits (ADC, RTC, temperature sensor) from digital switching transients, as detailed in Sections 3.5.1 and 6.3.3 of the datasheet.

Is the STM32F038F6P6TR pin-compatible with other members of the STM32F038x6 family?

No - the STM32F038F6P6TR uses the TSSOP20 package, whereas other variants (e.g., STM32F038C6, STM32F038G6) use LQFP48, UFQFPN32, or WLCSP25 packages. Pin compatibility exists only within the same package option; TSSOP20 devices share identical pinouts across F038x6 variants, but differ from other package types in both pin count and signal mapping.