STMicroelectronics

STM32F103CBU6 - 72MHz Cortex-M3 128KB MCU | STMicroelectronics

부품 번호: STM32F103CBU6 ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
48-UFQFPN, 7 mm x 7 mm Package 72 MHz Speed 128 KB (128K x 8) Memory
문의하기 가격 문의
MOQ: 1 |
가격 업데이트: 2026-10-21
볼륨 가격
수량 단가 합계
1 $7.7473 $7.75
10 $0 $0.00
100 $0 $0.00
500 $0 $0.00
1,000 $0 $0.00
ℹ️ 모든 가격은 USD 기준입니다

STM32F103CBU6 개요

The STMicroelectronics STM32F103CBU6 is a 32-bit ARM Cortex-M3 microcontroller operating up to 72 MHz, with 128 KB of Flash memory and a 48-pin UFQFPN package measuring 7 mm by 7 mm. The verified distributor listing identifies this part as an STM32F1 performance-line MCU with 128K x 8 Flash organization. It combines general-purpose embedded processing with USB, CAN, timers, ADCs, and multiple communication interfaces in one compact surface-mount device.

A microcontroller is a programmable semiconductor that integrates a CPU core, memory, peripherals, and interfaces into a single embedded-control component. The STM32F103 belongs to the ARM Cortex-M microcontroller class and the broader embedded-processor hierarchy: MCU, microcontroller, embedded processor, and semiconductor. This device family is intended for systems that need deterministic control, serial communications, analog measurement, and moderate firmware complexity without a separate processor.

Key verified features include a 72 MHz ARM Cortex-M3 CPU, 1.25 DMIPS/MHz Dhrystone 2.1 performance at zero-wait-state memory access, single-cycle multiplication, hardware division, and 128 KB of Flash. The family feature description also identifies USB, CAN, seven timers, two ADCs, and nine communication interfaces. These peripherals support connected industrial controls, USB peripherals, CAN nodes, measurement systems, and compact embedded products.

The STM32F103CBU6 uses a 48-UFQFPN package with an exposed pad, enabling a compact PCB footprint and improved heat spreading when the pad is properly connected to the ground plane. The MCU is not a power semiconductor, so a safe-operating-area chart is not applicable. Supply voltage, current, temperature limits, pin functions, and detailed electrical limits are not fully included in the supplied verified data and must be confirmed from the manufacturer datasheet before design release.

Typical applications include industrial automation, USB-enabled embedded controls, CAN-connected equipment, motor and motor-control systems, instrumentation, and low-cost development platforms. Its 72 MHz processing rate and communication peripherals make it suitable for control loops that require more performance than a simple 8-bit MCU while retaining a broad embedded peripheral set. The 48-pin package also offers more I/O and interface options than smaller 32-pin or 20-pin devices.

For a new design, preserve the exposed-pad land pattern, follow the manufacturer's decoupling and layout guidance, and verify pin multiplexing, clock configuration, peripheral assignment, and firmware support against the exact datasheet and reference manual. This page combines verified distributor specifications, sourced replacement information, comparison structure, and practical design guidance; it does not substitute for an electrical sign-off of the manufacturer documentation.

드롭인 대체품: STM32F103CBU6 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: STM32F103CBU6 (동일 폼 팩터 및 풋프린트) — 차이점: Package, Timers, ADC, Flash Memory, RoHS Status.

Artery
Package: LQFP-64 (10x10 mm)
Timers: 17
ADC: 3 x 12-bit ADC
비교 대상: STM32F103CBU6 →
STMicroelectronics
Package: 48-LQFP
Timers: Seven 16-bit timers plus one 24-bit down-counter
Flash Memory: 32 KB (32K x 8)
비교 대상: STM32F103CBU6 →
STMicroelectronics
Package: LQFP-48 (7x7 mm)
Timers: 3x 16-bit GP + 1x PWM + 1x basic
ADC: 2x 12-bit, up to 10 channels
비교 대상: STM32F103CBU6 →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

STM32F103CBU6

✅ 드롭인
STMicroelectronics
📦 48-UFQFPN (7x7 mm)
ARM Cortex-M3, 32-bit · 72 MHz · 128 KB (128K x 8) · 1.25 DMIPS/MHz, Dhrystone 2.1, at 0 wait-state memory access · Single-cycle hardware multiplication · Hardware division · USB · CAN

✓ 재고 있음

가격 문의

데이터시트 보기 →

STM32F103CBT6

✅ 드롭인
STMicroelectronics
📦 48-UFQFPN (7x7 mm)
ARM Cortex-M3 32-bit RISC · 72 MHz · 128 KB · 20 KB · 2.0 V to 3.6 V · 37 (5 V tolerant) · 2x 12-bit, up to 10 channels · 1x 12-bit

✓ 재고 있음

$3.2 / 개

데이터시트 보기 →

STM32F103C6T6

✅ 드롭인
STMicroelectronics
📦 48-UFQFPN (7x7 mm)
ARM Cortex-M3 · 32-bit · 72 MHz · 32 KB (32K x 8) · 10 KB · 2.0 V to 3.6 V · 12-bit · 2

✓ 재고 있음

$2.05 / 개

데이터시트 보기 →

GD32F103C8T6

✅ 드롭인
📦 48-LQFP
Related Cortex-M3 MCU candidate; supplied migration material identifies pin compatibility and 108 MHz versus 72 MHz difference

📋 참조 대체품 (카탈로그에 없음)

APM32F103C8T6

✅ 드롭인
📦 48-LQFP
Related STM32F103 alternative listed in supplied search results; exact UFQFPN compatibility is not verified

📋 참조 대체품 (카탈로그에 없음)

AT32F403ARGT7

✅ 드롭인
Artery
📦 48-UFQFPN
ARM Cortex-M4F with FPU and DSP · 240 MHz · 1 MB · 224 KB · 2.6 V to 3.6 V · -40C to +105C · 51 · 17

✓ 재고 있음

$0.9 / 개

데이터시트 보기 →

STM32F103CBU6 최대 정격 & 전기적 특성

CPU Core ARM Cortex-M3, 32-bit
Maximum CPU Frequency 72 MHz
Flash Memory 128 KB (128K x 8)
CPU Performance 1.25 DMIPS/MHz, Dhrystone 2.1, at 0 wait-state memory access
Multiplier Single-cycle hardware multiplication
Divider Hardware division
USB Interface USB
CAN Interface CAN
Timers 7 timers
ADC 2 ADCs
Communication Interfaces 9 communication interfaces
패키지 48-UFQFPN, 7 mm x 7 mm
Exposed Pad Exposed pad
실장 유형 Surface mount
Product Family STM32F1 performance line
Datasheet Description Medium-density performance line ARM-based 32-bit MCU
RoHS unknown
REACH unknown

STM32F103CBU6 48-ufqfpn, 7 mm x 7 mm 핀 구성 가이드

STM32F103CBU6(48-ufqfpn, 7 mm x 7 mm 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.

STM32F103CBU6의 48-ufqfpn, 7 mm x 7 mm 패키지 핀아웃 다이어그램

다음에 대한 상세 핀아웃 데이터 없음: STM32F103CBU6.

다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.

일반적인 애플리케이션

STM32F103CBU6 적합 용도: 6 애플리케이션s: USB-Enabled Embedded Control, CAN-Connected Industrial Equipment, Industrial Automation Controller, Motor and Motor-Control Systems, Instrumentation and Data Acquisition, Communication Gateway and Protocol Bridge.

🧩

USB-Enabled Embedded Control

The STM32F103CBU6 fits compact USB-connected controllers because the verified family data identifies USB, a 72 MHz ARM Cortex-M3 core, 128 KB Flash, seven timers, and two ADCs. The MCU can manage protocol handling, state machines, control outputs, and sensor acquisition in one device. Its 48-UFQFPN footprint provides more pin options than a low-pin-count controller while keeping the design compact. The main design consideration is USB transceiver and signal-integration planning, together with firmware validation for the exact USB peripheral configuration.

🏭

CAN-Connected Industrial Equipment

The STM32F103CBU6 is suitable for CAN-connected industrial equipment because the verified STM32F103 family includes CAN, nine communication interfaces, timers, and ADCs. It can coordinate remote sensors, actuator commands, diagnostic data, and local control loops while retaining 128 KB of Flash for application firmware. The 72 MHz Cortex-M3 core supports responsive protocol and control tasks. Design the CAN transceiver, termination, isolation, and protection network separately, and validate timing against the selected bus topology.

🏭

Industrial Automation Controller

The STM32F103CBU6 works as an industrial automation controller when a design needs a 32-bit CPU, 72 MHz performance, USB or CAN communications, two ADCs, and multiple timers. It can execute sequencing logic, monitor analog inputs, drive discrete outputs, and communicate with supervisory equipment. The 48-pin UFQFPN package provides a practical pin count for mixed control and communications. Production designs should follow the manufacturer reference manual for alternate-function mapping, clock setup, reset behavior, decoupling, and exposed-pad implementation.

⚡

Motor and Motor-Control Systems

The STM32F103CBU6 can serve in motor-control and embedded motion systems because its Cortex-M3 core reaches 72 MHz and the verified family data identifies seven timers and two ADCs. Timers support precise counting and timing functions, while ADCs can acquire current or position-related analog signals. The MCU can coordinate control algorithms, communication, and protection logic. Power-stage design, gate-drive timing, current sensing, thermal protection, and motor-specific safety requirements remain external to the MCU and must be validated independently.

📺

Instrumentation and Data Acquisition

The STM32F103CBU6 is appropriate for instrumentation and data-acquisition modules requiring two ADCs, nine communication interfaces, 128 KB Flash, and deterministic 72 MHz processing. It can sample analog channels, apply calibration and filtering, execute control logic, and forward results through USB, CAN, or other available serial interfaces. The 48-pin package provides more I/O flexibility for sensor inputs and communication signals. Input filtering, reference design, sensor excitation, calibration storage, and communication isolation should be specified for the final measurement system.

🌐

Communication Gateway and Protocol Bridge

The STM32F103CBU6 can act as a compact communication gateway because the verified family data lists USB, CAN, nine communication interfaces, and a 72 MHz Cortex-M3 core. A gateway can translate between local serial links, packet queues, configuration data, and diagnostic messages while using the 128 KB Flash for firmware. The MCU is suitable when real-time protocol handling is needed without a higher-power application processor. For deployment, verify baud-rate support, buffering, timeout behavior, bootloader strategy, and electrical protection on every external communication line.

What is STM32F103CBU6?
STM32F103CBU6 is a STMicroelectronics 32-bit ARM Cortex-M3 performance-line microcontroller with a maximum CPU frequency of 72 MHz and 128 KB of Flash. According to the verified DigiKey product listing, it is packaged in a 48-pin UFQFPN measuring 7 mm by 7 mm. The device also includes USB, CAN, seven timers, two ADCs, and nine communication interfaces for embedded-control designs.
What is the operating frequency of STM32F103CBU6?
STM32F103CBU6 operates up to 72 MHz. The verified STM32F103 family description specifies an ARM Cortex-M3 core with 1.25 DMIPS/MHz Dhrystone 2.1 performance at zero-wait-state memory access. The MCU also provides single-cycle multiplication and hardware division, making it suitable for control loops, communications, and general embedded tasks that require more processing capability than an 8-bit MCU.
How much Flash memory does STM32F103CBU6 have?
STM32F103CBU6 has 128 KB of Flash memory, organized as 128K x 8 according to the verified DigiKey listing. The STM32F103 family information also describes 128 KB and 64 KB Flash variants, so the exact ordering code must be used when checking memory capacity. Firmware storage, boot code, and application code should be sized against the verified 128 KB value for this MPN.
What package does STM32F103CBU6 use?
STM32F103CBU6 uses a 48-UFQFPN package measuring 7 mm by 7 mm. The verified product data also identifies an exposed pad, which should be implemented as specified by the manufacturer package drawing. A 48-pin footprint is appropriate for designs needing more GPIO and peripheral connections than smaller STM32 packages provide, but the exposed-pad connection and thermal requirements must follow the exact datasheet.
Where can I download the STM32F103CBU6 datasheet PDF?
The verified datasheet search points to the STM32F103CBU6 datasheet page at Datasheets.com and a downloadable PDF listing at AllDataSheet. The manufacturer-specific electrical characteristics and pin details should be checked against STMicroelectronics documentation before layout or production release. The supplied search data identifies the document as a 105-page PDF, but it does not provide a verified STMicroelectronics document number or controlled PDF URL.
Is STM32F103CBU6 suitable for USB and CAN applications?
Yes, STM32F103CBU6 is suitable for designs using USB and CAN because the verified STM32F103 family data lists USB, CAN, seven timers, two ADCs, and nine communication interfaces. These peripherals can support connected control equipment, USB peripherals, CAN nodes, and industrial interfaces. Firmware configuration, transceiver requirements, pin multiplexing, and bus timing still require validation in the final design.
What is the price of STM32F103CBU6?
The supplied distributor data lists a reference unit price of $7.7473 for STM32F103CBU6, shown by Heisener as the unit price for its listed inventory. This price is not a complete market price comparison and must be treated as reference pricing rather than a guaranteed quotation. As of 2026-10-21, request a current distributor quote for production quantities because inventory and price can change.
Where can I buy STM32F103CBU6 online?
STM32F103CBU6 can be researched through DigiKey, Mouser, Octopart, Heisener, and Win Source according to the supplied verified results. DigiKey and Mouser provide product, datasheet, inventory, and pricing pages, while Octopart compares multiple distributors. The supplied Heisener result states that 340,044 pieces were in stock for reference, but current stock should be confirmed with the selected authorized distributor.
What is the lead time for STM32F103CBU6?
The supplied Heisener result states that STM32F103CBU6 can ship immediately and gives an estimated delivery window of October 22 to October 27, but that information is not a current guaranteed lead-time statement. As of 2026-10-21, verify stock, scheduled delivery, and any minimum-order quantity directly with the distributor. Other suppliers may provide different lead times and production allocation conditions.
Is STM32F103CBU6 in stock?
The supplied Heisener search result reports 340,044 pieces in stock, while DigiKey states that the part is available to buy and ship today. These statements are time-sensitive and should not be treated as a real-time reservation. As of 2026-10-21, confirm the exact quantity and fulfillment status with the distributor before placing an order.
What can replace STM32F103CBU6?
STM32F103C8T6 is identified by the supplied alternatives search as a related STM32F103 family alternative, but it uses a different package and therefore is not a true drop-in replacement for the STM32F103CBU6 footprint. The alternatives search also discusses GD32F103, APM32F103, and AT32F403 migration options. A substitute must be checked for exact package dimensions, exposed-pad behavior, pin functions, memory, peripherals, clocking, and firmware support.
Is STM32F103CBU6 the same as STM32F103C8T6?
No, STM32F103CBU6 and STM32F103C8T6 are related STM32F103 devices but are not package-identical drop-in parts. The verified distributor data identifies STM32F103CBU6 as a 48-UFQFPN 7 mm by 7 mm package, whereas STM32F103C8T6 is commonly listed in a smaller 48-LQFP package and should not be assumed interchangeable. Verify the exact package, pinout, and exposed-pad arrangement before substitution.
What is the best drop-in replacement for STM32F103CBU6?
No verified 5-8-part drop-in replacement set was supplied for STM32F103CBU6, so a best drop-in replacement cannot be confirmed from the available evidence. Search results identify related MCU families and migration candidates, but they do not establish the required UFQFPN package, exposed pad, complete pin compatibility, and matched electrical behavior. Do not select a replacement solely from the Cortex-M3, 72 MHz, or 128 KB Flash claims; verify the exact package and pin configuration first.
Can GD32F103 replace STM32F103CBU6?
A GD32F103 replacement is not confirmed as a true drop-in alternative for STM32F103CBU6 from the supplied data. The supplied migration guide describes GD32F103 as a common pin-compatible second-source candidate for the broader STM32F103 family and notes a 108 MHz versus 72 MHz difference, but it does not verify the exact 48-UFQFPN footprint and exposed-pad arrangement. Hardware and firmware validation are mandatory before using it as a second source.
When should I choose STM32F103CBU6 over a lower-pin-count STM32F103?
Choose STM32F103CBU6 when a design benefits from its 48-UFQFPN package, 72 MHz Cortex-M3 performance, 128 KB Flash, and the verified family peripherals including USB, CAN, seven timers, two ADCs, and nine communication interfaces. A lower-pin-count alternative may be appropriate when fewer I/O and peripherals are needed, but it may require a different footprint and board redesign. Confirm package, memory, peripheral mapping, and application requirements before choosing.

엔지니어링 참조 데이터: STM32F103CBU6 — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose STM32F103CBU6 when the design needs the verified combination of a 72 MHz ARM Cortex-M3 core, 128 KB Flash, USB, CAN, seven timers, two ADCs, nine communication interfaces, and a 48-UFQFPN package. It is suitable for USB-connected controls, CAN nodes, industrial automation, instrumentation, and motor-control systems where the board can accommodate the package and exposed pad. GD32F103C8T6 may be attractive as a related migration candidate, but the supplied material cites a 108 MHz difference and does not establish identical UFQFPN pin compatibility. APM32F103C8T6 and AT32F403 also require package, memory, peripheral, and firmware validation. STM32F103CBT6 and STM32F103C6T6 are related same-family candidates, but exact compatibility is not fully established by the supplied data. Use the original STMicroelectronics part when firmware, qualification, or sourcing continuity is the priority.

대체품과의 비교

파라미터 이 제품 STM32F103CBU6 STM32F103CBT6 STM32F103C6T6 GD32F103C8T6 APM32F103C8T6
Package 48-UFQFPN (7x7 mm) 48-UFQFPN (7x7 mm) 48-UFQFPN (7x7 mm) claimed in alternatives search 48-UFQFPN (7x7 mm) claimed in alternatives search 48-LQFP 48-LQFP
Brand STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics GigaDevice GigaDevice

주요 차별점

  • Verified 72 MHz Cortex-M3 performance (vs GD32F103C8T6)
  • Documented 128 KB Flash configuration (vs STM32F103C6T6)
  • Verified family peripheral set (vs APM32F103C8T6)

설계 노트

Reproduce the 48-UFQFPN footprint and exposed-pad land pattern from the exact STM32F103CBU6 package drawing. Keep the MCU, decoupling capacitors, and any oscillator or reset components close to their associated pins. Route high-current and high-speed communication paths away from sensitive analog inputs, and provide a continuous ground reference. The verified data confirms the 7 mm by 7 mm package and exposed pad but does not provide the complete recommended land pattern.

Before power-up, verify the STM32F103CBU6 supply-voltage range, decoupling values, regulator startup behavior, and maximum current from the manufacturer datasheet; those electrical values are not present in the supplied verified snippets. Place bulk and local bypass capacitance according to the reference design and check startup margin across temperature. Do not infer supply limits from the 72 MHz CPU specification, since clock rate and operating voltage are separate constraints.

USB and CAN interfaces need deliberate signal-integrity planning. Keep USB traces short, impedance controlled, and referenced to a continuous ground plane; route CAN differential traces with appropriate geometry and terminate according to the network design. Isolate clocks, high-speed edges, switching supplies, and motor-drive return currents from ADC and communication paths. The verified data confirms the presence of USB and CAN but does not provide trace-impedance or timing values.

규정 준수 정보

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
무연
Unknown
무할로겐
Unknown
분쟁 광물
Unknown

The supplied verified data does not state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification status. AEC-Q100 is marked not_applicable because no automotive qualification is stated; this is not an automotive qualification claim.

관련 검색

STM32F103CBU6 STM32F103CBU6 datasheet STMicroelectronics STM32F103CBU6 STM32F103CBU6 72MHz Cortex-M3 STM32F103CBU6 128KB Flash STM32F103CBU6 48-UFQFPN STM32F103CBU6 USB CAN microcontroller STM32F103CBU6 industrial automation STM32F103CBU6 pinout STM32F103CBU6 price STM32F103CBU6 buy online STM32F103CBU6 lead time and stock STM32F103CBU6 vs STM32F103C8T6 STM32F103CBU6 drop-in replacement GD32F103 replacement for STM32F103CBU6

관련 부품 & 용어

STMicroelectronics STM32F103CBU6 STM32F103 STM32F1 ARM Cortex-M3 ARM microcontroller MCU embedded processor semiconductor 128 KB Flash 72 MHz USB CAN two ADCs seven timers nine communication interfaces UFQFPN 48-pin package exposed pad industrial automation motor control instrumentation USB-connected embedded control
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