Microcontrollers

Products (20,000+)

STM8S103F2P3TR - 16MHz 8-Bit MCU, 4KB Flash | STMicroelectronics (Tape & Reel)
STM8S103F2P3TR

STM8S103F2P3TR - 16MHz 8-Bit MCU, 4KB Flash | STMicroelectronics (Tape & Reel)

The STMicroelectronics STM8S103F2P3TR is an 8-bit STM8S access-line microcontroller operating at up to 16 MHz, with 4 KB of Flash program memory and integrated data EEPROM, housed in a 20-pin TSSOP package. The verified distributor listings identify a 2.95 V to 5.5 V supply range, 16 I/O ports, a 10-bit ADC, three timers, UART, SPI, and I2C. Its small package and low-voltage operation make it suitable for compact embedded controls, sensor nodes, and simple industrial products. What is an 8-bit microcontroller? An 8-bit MCU is a programmable integrated circuit that executes instructions using an 8-bit data bus. In the embedded-control hierarchy, the STM8S103F2P3TR belongs to the STM8S MCU family, which combines a CPU core, Flash program memory, data EEPROM, peripherals, and GPIO in one low-power device. It is intended for applications that need deterministic control and multiple serial interfaces without the resource demand of a higher-bit MCU. The STM8S103F2P3TR is listed by STMicroelectronics as part of the STM8S103F2/x3 access line. The verified specifications show 4 KB of Flash for the STM8S103F2P3TR ordering code, while the related STM8S103F2 family also includes variants with larger memory. The device provides a 16 MHz clock, a 10-bit ADC, three timers, UART, SPI, and I2C, making it a broad platform for embedded sensing, communications, and actuator-control designs. The 20-pin TSSOP package helps reduce PCB area compared with larger leaded packages. With 16 I/O ports, the device can connect digital inputs, outputs, and serial peripherals while leaving the remaining pins for power, clock, reset, and programming functions. The 2.95 V to 5.5 V operating range supports common embedded supply systems, although the final design should verify every electrical limit against the manufacturer datasheet. Typical applications include small sensor nodes, digital control boards, temperature or analog-signal monitoring, simple communication bridges, LED and relay-control systems, and compact access-line embedded products. The UART, SPI, and I2C peripherals allow the MCU to interface with sensors, transceivers, memories, displays, and actuators without requiring a separate interface controller. For a new design, verify the exact pinout, alternate-function assignments, clock configuration, and reset behavior before layout. The verified web data does not provide a complete pin-by-pin mapping, pricing, lead time, or all electrical timing values, so those fields are marked as unavailable rather than inferred.

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STM8S103F2P6 - 16MHz 8-Bit 4KB MCU | STMicroelectronics
STM8S103F2P6

STM8S103F2P6 - 16MHz 8-Bit 4KB MCU | STMicroelectronics

The STMicroelectronics STM8S103F2P6 is a 16 MHz 8-bit microcontroller with 4 KB of Flash program memory in a 20-pin TSSOP package. It belongs to the STM8S103 access line and integrates a 10-bit ADC, three timers, UART, SPI, and I2C interfaces. These characteristics make it suitable for compact embedded control, sensing, communications, and actuator-control systems requiring an economical general-purpose MCU. An 8-bit microcontroller is a semiconductor that executes instructions and processes sensor, control, and communications data using an 8-bit data path. The STM8S family combines a microcontroller, memory, and peripherals in one integrated circuit. Within the product hierarchy, the STM8S103F2P6 is an 8-bit MCU, an embedded controller, and a semiconductor intended for low-cost, compact electronic systems. The principal features include a 16 MHz operating frequency, 4 KB of Flash memory, a 10-bit analog-to-digital converter, three timers, and support for UART, SPI, and I2C serial communication. The 20-TSSOP surface-mount package also supports space-constrained PCB layouts. Together, these resources allow a design to combine analog measurement, periodic timing, digital control, and peripheral communication without requiring a separate ADC or communications transceiver. The STM8S103F2 uses the advanced STM8 core with Harvard architecture and a three-stage pipeline, as identified in the manufacturer datasheet search result. Its Harvard architecture separates instruction and data access paths, while the three-stage pipeline supports efficient sequential execution. Integrated data EEPROM is listed as a family feature by STMicroelectronics, although the exact EEPROM size for this orderable MPN is not present in the supplied verified data. Typical applications include industrial sensor modules, compact motor and relay controllers, digital thermometers, appliance interfaces, low-cost serial bridges, LED-control boards, and compact instrumentation. The ADC supports analog input acquisition, while UART, SPI, and I2C provide paths for external sensors, displays, memory devices, and system controllers. The three timers support periodic events, timing bases, and basic control functions. A key design consideration is verifying the exact pin multiplexing and peripheral assignments for the selected 20-TSSOP footprint in the manufacturer pinout and datasheet. Designers should also confirm memory requirements, clock configuration, ADC accuracy needs, and communication-voltage levels before committing the part to a new PCB. A complete 20-pin pinout was not included in the supplied verified excerpts and is therefore not reproduced here. This page combines verified distributor identification, manufacturer feature information, package details, application guidance, and honest cross-reference analysis. It also distinguishes verified drop-in candidates from functional alternatives so procurement and engineering teams can evaluate interchangeability without relying on incomplete distributor metadata.

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STM8S103F3M3 - 16MHz 8-Bit MCU with 8KB Flash | STMicroelectronics
STM8S103F3M3

STM8S103F3M3 - 16MHz 8-Bit MCU with 8KB Flash | STMicroelectronics

The STMicroelectronics STM8S103F3M3 is an access-line, 8-bit STM8S microcontroller rated at 16 MHz, with 8 KB of Flash program memory, integrated true data EEPROM, a 10-bit ADC, three timers, UART, SPI, and I2C peripherals, and housed in a 20-pin SOIC package. Its combination of compact embedded processing, serial connectivity, and analog measurement makes it suitable for cost-sensitive control and monitoring designs. An 8-bit microcontroller is a programmable semiconductor that executes instructions from embedded Flash memory and uses registers, memories, and peripherals to control a system. Within the product hierarchy, the STM8S103F3M3 is an 8-bit MCU, a microcontroller IC, and a general-purpose embedded processor. The STM8S access line is designed for small systems that need reliable peripheral integration without the complexity of a higher-bit application processor. The STM8S103F3M3 provides 8 Kbytes of Flash program memory and integrated true data EEPROM for parameters that must retain their values across power cycles. Its 16 MHz maximum clock speed supports deterministic control tasks, while the 10-bit ADC provides 1024 possible digital codes for analog measurements. Three timers support timing, counting, and periodic event generation, and UART, SPI, and I2C interfaces cover common sensor, actuator, and host-device communication paths. The M3 package designation corresponds to a 20-pin SOIC, giving the design a compact surface-mount footprint without requiring a fine-pitch BGA. The MCU is intended for compact embedded products such as sensor modules, building-control endpoints, appliance controllers, instrumentation, and communication accessories. Its integrated serial interfaces can reduce external component count when the connected peripherals support the corresponding bus protocols. Design work should begin by assigning every 20-pin package position from the manufacturer pinout and keeping the decoupling capacitor close to the device supply pins. Firmware must account for the 8 KB memory ceiling, and the ADC reference and analog-input routing should be checked against the selected application. Because no complete pin-level specification appears in the accessible product material, use the manufacturer datasheet for pin names, alternate functions, electrical limits, and programming details before laying out or releasing a PCB. This page combines the verified product identity, package, memory, clock, interface, and temperature information with practical application guidance and datasheet links. It also distinguishes confirmed drop-in alternatives from family members that cannot be assumed to share the same footprint, helping engineers make a package-aware sourcing decision without relying on incomplete cross-reference listings.

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STM8S103F3M6 - 16MHz 8KB 8-Bit MCU | STMicroelectronics
STM8S103F3M6

STM8S103F3M6 - 16MHz 8KB 8-Bit MCU | STMicroelectronics

The STMicroelectronics STM8S103F3M6 is an 8-bit STM8S access-line microcontroller operating up to 16 MHz, with 8 KB of Flash program memory and a 20-pin SOIC package. The verified product information identifies a 2.95 V to 5.5 V supply range, 16 I/O ports, integrated true data EEPROM, and an 8 KB Flash organization of 8K × 8. Its lifecycle status is active. A microcontroller is a programmable semiconductor device that integrates a processor core, memory, and peripherals into one compact component. In the device hierarchy, the STM8S103F3 belongs to the STM8S 8-bit MCU family, a cost-conscious platform for embedded control. The STM8S103F3M6 is intended for products that need deterministic low-complexity control, local sensing, actuator output, and communication without adopting a higher-cost 32-bit MCU. The principal verified features include a 16 MHz clock, 8 KB Flash memory, true EEPROM, 16 I/O ports, and operation across a 2.95 V to 5.5 V supply range. The true data EEPROM is useful when persistent parameters must be retained outside the program Flash. Sixteen I/O ports give a compact design multiple digital connection points, while the 20-pin SOIC package supports conventional surface-mount assembly. The access-line positioning emphasizes general embedded utility rather than automotive qualification or extreme-performance processing. The STM8S architecture is suited to small control loops, keypad interfaces, indicator logic, sensor conditioning, and communication modules. Because only Flash memory and clock speed were explicitly quantified in the supplied verified results, detailed RAM, peripheral, timer, and electrical limits should be confirmed in the manufacturer documentation before design release. Firmware migration also requires reviewing the applicable STM8S103F3 device datasheet, reference manual, startup files, linker configuration, and toolchain settings. Typical applications include building controls, compact industrial interfaces, appliance controllers, instrumentation, and low-power sensor nodes. At 16 MHz, the MCU can service multiple time-sensitive I/O tasks while keeping the design centered on an economical 8-bit processor. Its 8 KB Flash capacity also makes it most appropriate for applications with modest code requirements and simple update behavior. Designers should confirm every peripheral assignment, alternate-function mapping, pin type, and electrical limit from the official STM8S103F3M6 documentation before PCB release. Decoupling, clock stability, programming access, and exposed-pin assignments must follow the manufacturer recommendations. This page combines verified distributor and manufacturer information with procurement context and engineering guidance rather than filling missing technical details with assumptions. The information below synthesizes official product positioning, distributor listings, verified pricing evidence, and application-specific design considerations. Missing RAM, timer, peripheral, and package details are intentionally marked for verification, preventing unsupported claims from entering a new design.

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STM8S103F3M6TR - 16MHz 8KB 8-Bit MCU | STMicroelectronics (Tape & Reel)
STM8S103F3M6TR

STM8S103F3M6TR - 16MHz 8KB 8-Bit MCU | STMicroelectronics (Tape & Reel)

The STMicroelectronics STM8S103F3M6TR is an 8-bit STM8S access-line microcontroller operating up to 16 MHz, with 8 KB of Flash program memory and a 20-pin SOIC package. The verified product information identifies a 2.95 V to 5.5 V supply range, 16 I/O ports, integrated true data EEPROM, and an 8 KB Flash organization of 8K × 8. Its lifecycle status is active. A microcontroller is a programmable semiconductor device that integrates a processor core, memory, and peripherals into one compact component. In the device hierarchy, the STM8S103F3 belongs to the STM8S 8-bit MCU family, a cost-conscious platform for embedded control. The STM8S103F3M6TR is intended for products that need deterministic low-complexity control, local sensing, actuator output, and communication without adopting a higher-cost 32-bit MCU. The principal verified features include a 16 MHz clock, 8 KB Flash memory, true EEPROM, 16 I/O ports, and operation across a 2.95 V to 5.5 V supply range. The true data EEPROM is useful when persistent parameters must be retained outside the program Flash. Sixteen I/O ports give a compact design multiple digital connection points, while the 20-pin SOIC package supports conventional surface-mount assembly. The access-line positioning emphasizes general embedded utility rather than automotive qualification or extreme-performance processing. The STM8S architecture is suited to small control loops, keypad interfaces, indicator logic, sensor conditioning, and communication modules. Because only Flash memory and clock speed were explicitly quantified in the supplied verified results, detailed RAM, peripheral, timer, and electrical limits should be confirmed in the manufacturer documentation before design release. Firmware migration also requires reviewing the applicable STM8S103F3 device datasheet, reference manual, startup files, linker configuration, and toolchain settings. Typical applications include building controls, compact industrial interfaces, appliance controllers, instrumentation, and low-power sensor nodes. At 16 MHz, the MCU can service multiple time-sensitive I/O tasks while keeping the design centered on an economical 8-bit processor. Its 8 KB Flash capacity also makes it most appropriate for applications with modest code requirements and simple update behavior. Designers should confirm every peripheral assignment, alternate-function mapping, pin type, and electrical limit from the official STM8S103F3M6TR documentation before PCB release. Decoupling, clock stability, programming access, and exposed-pin assignments must follow the manufacturer recommendations. This page combines verified distributor and manufacturer information with procurement context and engineering guidance rather than filling missing technical details with assumptions. The information below synthesizes official product positioning, distributor listings, verified pricing evidence, and application-specific design considerations. Missing RAM, timer, peripheral, and package details are intentionally marked for verification, preventing unsupported claims from entering a new design.

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STM8S103F3P3 - 16MHz 8-Bit MCU, 8KB Flash | STMicroelectronics
STM8S103F3P3

STM8S103F3P3 - 16MHz 8-Bit MCU, 8KB Flash | STMicroelectronics

The STMicroelectronics STM8S103F3P3 is an access-line, 8-bit STM8S microcontroller rated up to 16 MHz, with 8 Kbytes of Flash program memory, integrated true data EEPROM, and a 20-TSSOP package. It combines a 10-bit ADC, three timers, UART, SPI, and I2C interfaces in a compact surface-mount package suitable for cost-sensitive embedded control systems. The device operates from a 3.3 V or 5 V supply according to the verified distributor specifications. An STM8S microcontroller belongs to the 8-bit embedded-microcontroller hierarchy, where an MCU integrates a CPU core, program memory, data memory, peripherals, and interface logic on one semiconductor die. The STM8S103F3 access line is positioned for compact embedded applications where a modest processing rate, useful analog measurement, and multiple serial interfaces are more important than high-bandwidth computation. Its integrated true data EEPROM also allows frequently changed calibration or configuration data to be stored separately from program Flash. Three principal characteristics define this device: a maximum 16 MHz operating frequency, up to 8 Kbytes of Flash program memory, and a 10-bit ADC. The STM8S103F3P3 additionally provides three timers and UART, SPI, and I2C serial interfaces. These resources allow a design to measure analog inputs, control timing-dependent outputs, and communicate with sensors, transceivers, displays, or external nonvolatile memories without requiring several separate interface devices. The STM8S103F3P3 uses STMicroelectronics' STM8 8-bit architecture and is associated with the STM8S103F2/x3 access-line family. At 16 MHz, the device provides substantially more timing headroom than an 8 MHz-class MCU while retaining the straightforward programming model and integrated peripherals expected from an entry-level 8-bit platform. The available verified information does not specify RAM size, ADC resolution details beyond 10-bit capability, or individual peripheral timing ratings, so those details should be confirmed in the manufacturer datasheet before timing-critical design work. Typical uses include compact industrial controllers, appliance control boards, sensor acquisition modules, motor or actuator controllers, communication gateways, and low-cost consumer products. The three timers support periodic control and timing functions, the 10-bit ADC supports analog sensing, and UART, SPI, and I2C cover common embedded communication requirements. The 20-TSSOP package is particularly useful where a through-hole footprint is unnecessary but a fine-pitch surface-mount assembly is available. PCB implementation requires careful decoupling of each supply pin and a low-impedance connection between the MCU and its crystal or clock source when an external resonator is used. Firmware must preserve the device-specific reset, boot, and oscillator options, and peripheral inputs must remain within the electrical limits published by STMicroelectronics. Because the verified distributor result explicitly describes the STM8S103F3P3 as packed in a tube, procurement should use the manufacturer ordering information to confirm the shipping quantity and marking treatment. This page combines the verified STMicroelectronics family information with distributor pricing, package details, selection guidance, and practical design considerations. It distinguishes confirmed capabilities from parameters that still require datasheet verification, helping engineers identify the STM8S103F3P3 for compact, mixed-signal embedded-control designs without treating unverified electrical details as guaranteed specifications.

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STM8S103F3P3TR - 16MHz 8-Bit MCU, 8KB Flash | STMicroelectronics (Tape & Reel)
STM8S103F3P3TR

STM8S103F3P3TR - 16MHz 8-Bit MCU, 8KB Flash | STMicroelectronics (Tape & Reel)

The STMicroelectronics STM8S103F3P3TR is an access-line, 8-bit STM8S microcontroller rated up to 16 MHz, with 8 Kbytes of Flash program memory, integrated true data EEPROM, and a 20-TSSOP package. It combines a 10-bit ADC, three timers, UART, SPI, and I2C interfaces in a compact surface-mount package suitable for cost-sensitive embedded control systems. The device operates from a 3.3 V or 5 V supply according to the verified distributor specifications. An STM8S microcontroller belongs to the 8-bit embedded-microcontroller hierarchy, where an MCU integrates a CPU core, program memory, data memory, peripherals, and interface logic on one semiconductor die. The STM8S103F3 access line is positioned for compact embedded applications where a modest processing rate, useful analog measurement, and multiple serial interfaces are more important than high-bandwidth computation. Its integrated true data EEPROM also allows frequently changed calibration or configuration data to be stored separately from program Flash. Three principal characteristics define this device: a maximum 16 MHz operating frequency, up to 8 Kbytes of Flash program memory, and a 10-bit ADC. The STM8S103F3P3TR additionally provides three timers and UART, SPI, and I2C serial interfaces. These resources allow a design to measure analog inputs, control timing-dependent outputs, and communicate with sensors, transceivers, displays, or external nonvolatile memories without requiring several separate interface devices. The STM8S103F3P3TR uses STMicroelectronics' STM8 8-bit architecture and is associated with the STM8S103F2/x3 access-line family. At 16 MHz, the device provides substantially more timing headroom than an 8 MHz-class MCU while retaining the straightforward programming model and integrated peripherals expected from an entry-level 8-bit platform. The available verified information does not specify RAM size, ADC resolution details beyond 10-bit capability, or individual peripheral timing ratings, so those details should be confirmed in the manufacturer datasheet before timing-critical design work. Typical uses include compact industrial controllers, appliance control boards, sensor acquisition modules, motor or actuator controllers, communication gateways, and low-cost consumer products. The three timers support periodic control and timing functions, the 10-bit ADC supports analog sensing, and UART, SPI, and I2C cover common embedded communication requirements. The 20-TSSOP package is particularly useful where a through-hole footprint is unnecessary but a fine-pitch surface-mount assembly is available. PCB implementation requires careful decoupling of each supply pin and a low-impedance connection between the MCU and its crystal or clock source when an external resonator is used. Firmware must preserve the device-specific reset, boot, and oscillator options, and peripheral inputs must remain within the electrical limits published by STMicroelectronics. Because the verified distributor result explicitly describes the STM8S103F3P3TR as packed in a tube, procurement should use the manufacturer ordering information to confirm the shipping quantity and marking treatment. This page combines the verified STMicroelectronics family information with distributor pricing, package details, selection guidance, and practical design considerations. It distinguishes confirmed capabilities from parameters that still require datasheet verification, helping engineers identify the STM8S103F3P3TR for compact, mixed-signal embedded-control designs without treating unverified electrical details as guaranteed specifications.

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STM8S103F3P6 - 8-bit 16MHz MCU, 8KB Flash, 20-TSSOP | STMicroelectronics
STM8S103F3P6

STM8S103F3P6 - 8-bit 16MHz MCU, 8KB Flash, 20-TSSOP | STMicroelectronics

The STMicroelectronics STM8S103F3P6 is an access-line 8-bit microcontroller from the STM8S family, featuring a 16 MHz STM8 core, 8 KB of Flash program memory, and an integrated true data EEPROM, housed in a 20-pin TSSOP package. The device delivers 1 Kbyte of SRAM, a 10-bit ADC, three 16-bit timers, plus UART, SPI, and I²C communication interfaces, with 16 programmable I/O pins for general-purpose use. Operating from a 2.95 V to 5.5 V supply, the STM8S103F3P6 provides a balance of small footprint, low power, and rich peripherals for cost-sensitive embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripheral interfaces. The STM8 core uses an advanced Harvard architecture with a 16-bit instruction word and 32-bit program counter extension for efficient code density. The "Access line" designation indicates this part targets cost-optimized designs with sufficient peripherals for general control tasks. This positions the STM8S103F3P6 within the broader taxonomy: MCU -> 8-bit microcontroller -> STM8 family -> STM8S access line -> STMicroelectronics 8-bit portfolio. Key features include 8 KB Flash with in-application programming (I2AP) capability, 640-byte true data EEPROM rated for 300 k write/erase cycles, a 10-bit ADC with up to 5 channels, and a 4-channel 16-bit PWM/timer structure supporting capture, compare, and one-pulse modes. The integrated SWIM debug interface and on-chip watchdog with window option simplify development and field reliability. The 20-pin TSSOP package offers a compact 6.5 mm × 4.4 mm footprint suitable for space-constrained PCBs. Typical applications include low-cost consumer appliances, sensor interface nodes, LED lighting controllers, battery chargers, simple motor drivers, and replacement of legacy 8051 or PIC16 designs. The wide 2.95-5.5 V supply range also supports 3.3 V and 5 V industrial systems without level shifters. Designers should note that the STM8S103F3P6 (industrial grade, -40 °C to 85 °C) and the STM8S003F3P6 differ in feature set; the '103 part includes a beeper and AWU peripherals absent on the '003. For higher memory needs, the STM8S105 series provides 32 KB Flash in larger packages. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet alone.

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STM8S103K3T3C - 16MHz 8-Bit MCU | STMicroelectronics
STM8S103K3T3C

STM8S103K3T3C - 16MHz 8-Bit MCU | STMicroelectronics

STMicroelectronics STM8S103K3T3C is an 8-bit access-line microcontroller with a 16 MHz clock, 8 KB of Flash program memory, 1 KB of RAM, and true data EEPROM in a 32-LQFP 7 x 7 mm package. The device is designed for compact embedded-control systems that need deterministic peripheral integration, low pin count, and an established STM8 development ecosystem. A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals on one die. Within the hierarchy of embedded semiconductors, an MCU is a control IC, while the STM8S103 access line provides an economical combination of Flash memory, EEPROM, timers, serial interfaces, and general-purpose I/O. This category is commonly used for compact control, sensing, and communication products where a higher-performance processor would add unnecessary cost or complexity. The STM8S103K3T3C operates at up to 16 MHz and provides 8 KB of Flash memory for firmware, 1 KB of RAM for working data, and integrated true EEPROM for parameter retention. Its 16 I/O ports support digital control and signal routing, while the 10-bit ADC supports analog measurements from sensor outputs, potentiometers, and resistive dividers. A wide 2.95 V to 5.5 V operating supply range supports both 3.3 V and 5 V system architectures without requiring an external level-conversion stage. The device combines an 8-bit core with dedicated serial and timing peripherals for embedded-control workloads. Common communication resources include UART, SPI, and I2C interfaces, enabling connection to sensors, displays, transceivers, and external nonvolatile memory. Timer resources support periodic generation, input capture, and motor or actuator control, while the ADC and digital I/O allow a single MCU to coordinate sensing and output functions in compact industrial, consumer, and accessory designs. Typical applications include small motor controllers, sensor-hub boards, industrial timers, access-control modules, LED-control systems, compact instrumentation, and low-cost consumer appliances. The STM8S103K3T3C is particularly suitable when the board requires 8-bit code density, multiple serial interfaces, modest RAM, and EEPROM-backed configuration in a small 32-pin surface-mount package. PCB design should preserve the STM8 power, ground, decoupling, clock, and programming connections defined in the manufacturer datasheet. Place the input and output bypass capacitors close to their associated pins, route sensitive analog signals away from fast-switching nodes, and verify the external crystal or clock circuit against the required load-capacitance and stability assumptions before production release. This product page consolidates the exact ordering information, technical limits, package data, application guidance, and verified replacement options for STM8S103K3T3C. The comparison and design notes also clarify where a family variant can preserve the PCB footprint and where firmware, memory, qualification, or temperature requirements must be checked before substitution.

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STM8S103K3T6C - 16MHz 8KB 8-Bit MCU | STMicroelectronics
STM8S103K3T6C

STM8S103K3T6C - 16MHz 8KB 8-Bit MCU | STMicroelectronics

The STMicroelectronics STM8S103K3T6C is an access-line, 8-bit STM8S microcontroller rated up to 16 MHz, with 8 KB of Flash program memory, integrated true data EEPROM, and a 32-pin LQFP package. The device also integrates a four-channel 10-bit ADC, three timers, UART, SPI, and I2C interfaces for compact control and communication designs. An 8-bit microcontroller is a programmable semiconductor that executes instructions from a fixed-width instruction set and uses embedded Flash, RAM, and peripherals to control a product. Within the broader hierarchy, this STM8S device belongs to the microcontroller, embedded processor, and semiconductor categories. It is intended for applications that require economical local control, mixed analog and digital measurement, and standard serial connectivity without a high-performance processor. The principal features of the STM8S103K3T6C include 16 MHz maximum clock operation, 8 KB of Flash memory, 640 bytes of EEPROM, 28 I/O lines, and four 10-bit ADC channels. Its integrated communications peripherals support UART, SPI, and I2C, while three timers provide timing, input capture, output compare, or basic PWM resources. The 2.95 V to 5.5 V operating range supports common 3.3 V and 5 V embedded systems. The STM8S access-line architecture combines an 8-bit CPU with integrated analog and serial peripherals on a single package. This integration reduces the component count for embedded control boards by placing analog conversion, nonvolatile data storage, and communication interfaces beside the processor. Flash retains firmware after power removal, while true data EEPROM supports parameter storage that can be updated independently of the program area. Typical uses include compact industrial controllers, sensor-interface modules, appliance controls, communication adapters, motor and relay-control boards, and cost-sensitive consumer products. The UART is useful for host diagnostics, the SPI interface supports faster peripheral expansion, and the I2C interface accommodates sensors and serial EEPROMs. The ADC enables analog voltage measurement when the application requires 10-bit resolution. PCB design should preserve clean grounding, short analog-signal paths, and appropriate decoupling near the device. Confirm the exact pin assignments, alternate-function routing, clock configuration, and analog-input limits in the manufacturer datasheet before layout release. Software designers should also account for the limited 8 KB program area when organizing drivers, communications routines, and application logic. This product page combines manufacturer specifications, package information, sourcing guidance, same-footprint alternatives, comparison parameters, and practical implementation notes. It helps engineers evaluate the STM8S103K3T6C against related 32-pin LQFP devices while preserving attention to memory capacity, peripheral availability, and package-level replacement risks.

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STM8S103K3U6 - 16MHz 8-Bit MCU with 8KB Flash | STMicroelectronics
STM8S103K3U6

STM8S103K3U6 - 16MHz 8-Bit MCU with 8KB Flash | STMicroelectronics

The STMicroelectronics STM8S103K3U6 is an access-line 8-bit STM8S microcontroller operating up to 16 MHz, with 8 KB of Flash program memory and 16 I/O ports, packaged in a 32-pin UFQFPN. It operates from 2.95 V to 5.5 V and integrates a 10-bit ADC, three timers, UART, SPI, and I²C. This combination makes it suitable for compact embedded control, sensor acquisition, communication, and low-cost automation systems where an 8-bit architecture, peripheral integration, and a small surface-mount footprint are useful. What is an 8-bit microcontroller? An 8-bit microcontroller is a compact embedded-processing device whose central processing unit, registers, data paths, and instruction handling are organized around eight-bit values. Within the broader semiconductor hierarchy, the STM8S103K3U6 is an MCU, then an embedded controller, then a general-purpose semiconductor used in control and communication products. The STM8S family combines program memory, RAM, data EEPROM, timers, serial interfaces, and analog conversion on one device. The part provides 8 Kbytes of Flash program memory, 1 Kbyte of RAM as identified in the retrieved comparison data, and 640 bytes of true data EEPROM with 300 kcycles endurance. Its 16 MHz clock supports responsive control loops, while the 10-bit ADC enables measurements from analog sensors. The integrated UART, SPI, and I²C interfaces support external transceivers, memory, sensors, displays, and other digital peripherals without requiring separate interface controllers. The STM8S103K3U6 is identified in the verified listing as a 32-pin UFQFPN device with an exposed pad and a 5 x 5 mm package description. The exposed pad and compact land pattern are important layout considerations because they influence thermal spreading, soldering, and assembly requirements. The device uses surface-mount construction, and the supplied search data identifies an operating supply range of 2.95 V to 5.5 V, allowing operation from either regulated 3.3 V or 5 V systems. Typical applications include low-cost sensor nodes, small motor or actuator controllers, communication modules, industrial control panels, instrument interfaces, and compact consumer products. The ADC and serial interfaces make it practical for designs that acquire analog values and transmit or store measurements. Firmware selection must match the STM8S device family, and board-level validation should include power sequencing, peripheral pin multiplexing, clock configuration, ADC calibration behavior, and exposed-pad thermal design. For a new design, choose the STM8S103K3U6 when 8 KB of Flash, 1 KB of RAM, a 16 MHz maximum clock, and integrated mixed-signal and serial peripherals are sufficient. It is not automatically interchangeable with a different STM8 device merely because the family name is similar; verify package pinout, memory size, voltage limits, peripheral assignments, and firmware support. This page combines verified distributor and manufacturer information with sourcing guidance, design cautions, and structured technical context.

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STM8S103K3U6TR - 16MHz 8-Bit MCU with 8KB Flash | STMicroelectronics (Tape & Reel)
STM8S103K3U6TR

STM8S103K3U6TR - 16MHz 8-Bit MCU with 8KB Flash | STMicroelectronics (Tape & Reel)

The STMicroelectronics STM8S103K3U6TR is an access-line 8-bit STM8S microcontroller operating up to 16 MHz, with 8 KB of Flash program memory and 16 I/O ports, packaged in a 32-pin UFQFPN. It operates from 2.95 V to 5.5 V and integrates a 10-bit ADC, three timers, UART, SPI, and I²C. This combination makes it suitable for compact embedded control, sensor acquisition, communication, and low-cost automation systems where an 8-bit architecture, peripheral integration, and a small surface-mount footprint are useful. What is an 8-bit microcontroller? An 8-bit microcontroller is a compact embedded-processing device whose central processing unit, registers, data paths, and instruction handling are organized around eight-bit values. Within the broader semiconductor hierarchy, the STM8S103K3U6TR is an MCU, then an embedded controller, then a general-purpose semiconductor used in control and communication products. The STM8S family combines program memory, RAM, data EEPROM, timers, serial interfaces, and analog conversion on one device. The part provides 8 Kbytes of Flash program memory, 1 Kbyte of RAM as identified in the retrieved comparison data, and 640 bytes of true data EEPROM with 300 kcycles endurance. Its 16 MHz clock supports responsive control loops, while the 10-bit ADC enables measurements from analog sensors. The integrated UART, SPI, and I²C interfaces support external transceivers, memory, sensors, displays, and other digital peripherals without requiring separate interface controllers. The STM8S103K3U6TR is identified in the verified listing as a 32-pin UFQFPN device with an exposed pad and a 5 x 5 mm package description. The exposed pad and compact land pattern are important layout considerations because they influence thermal spreading, soldering, and assembly requirements. The device uses surface-mount construction, and the supplied search data identifies an operating supply range of 2.95 V to 5.5 V, allowing operation from either regulated 3.3 V or 5 V systems. Typical applications include low-cost sensor nodes, small motor or actuator controllers, communication modules, industrial control panels, instrument interfaces, and compact consumer products. The ADC and serial interfaces make it practical for designs that acquire analog values and transmit or store measurements. Firmware selection must match the STM8S device family, and board-level validation should include power sequencing, peripheral pin multiplexing, clock configuration, ADC calibration behavior, and exposed-pad thermal design. For a new design, choose the STM8S103K3U6TR when 8 KB of Flash, 1 KB of RAM, a 16 MHz maximum clock, and integrated mixed-signal and serial peripherals are sufficient. It is not automatically interchangeable with a different STM8 device merely because the family name is similar; verify package pinout, memory size, voltage limits, peripheral assignments, and firmware support. This page combines verified distributor and manufacturer information with sourcing guidance, design cautions, and structured technical context.

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STM8S105C4T3 - 16MHz 16KB Flash 8-Bit MCU | STMicroelectronics
STM8S105C4T3

STM8S105C4T3 - 16MHz 16KB Flash 8-Bit MCU | STMicroelectronics

The STMicroelectronics STM8S105C4T3 is an 8-bit access-line microcontroller with a 16 MHz maximum clock, 16 KB of Flash program memory, 2 KB of RAM, and 38 I/O pins in a 48-LQFP 7 x 7 mm package. It belongs to the STM8S medium-density access-line family and is intended for compact embedded-control systems that require reliable digital control, communication, and mixed-signal peripheral support without the cost and complexity of a 32-bit MCU. What is an 8-bit access-line microcontroller? An 8-bit MCU is a microcontroller whose primary processing and data path is optimized for 8-bit values. The STM8S105C4T3 combines that architecture with Flash memory, static RAM, embedded EEPROM, timers, serial interfaces, analog conversion, and GPIO in one device. Within the broader hierarchy of MCU, embedded processor, and semiconductor, it sits between simple 8-bit controllers and more capable 32-bit Cortex-M microcontrollers, providing a useful balance of performance, memory, peripheral integration, and design complexity. The STM8S105x4/6 access-line family provides from 16 KB to 32 KB of Flash program memory and integrated true data EEPROM, according to the STMicroelectronics product-page search result. The C4T3 ordering identifies a device with 16 KB of Flash in the STM8S105C4 configuration and the 48-LQFP package. The 16 MHz operating speed is suitable for motor-control peripherals, communications, consumer accessories, industrial controllers, and embedded products that do not require a high-performance 32-bit core. The 38 available I/O pins make the 48-LQFP package useful when a design needs multiple control and monitoring signals while preserving a modest footprint. Available resources described by the verified data include 2 KB of RAM, integrated EEPROM, and the STM8S105xx access-line feature set. Detailed clock-tree options, ADC characteristics, timer resolutions, supply limits, and package thermal parameters were not included in the supplied search records and therefore require confirmation from the official manufacturer datasheet before design release. Typical applications include small motor controllers, sensor-hub boards, communication modules, panel interfaces, appliance controls, and compact industrial automation products. The 16 MHz core and 16 KB Flash are particularly useful for control loops and protocol state machines, while the 38 I/O pins simplify peripheral connection compared with smaller packages. Designers should confirm the complete 48-pin assignment, oscillator requirements, reset behavior, peripheral pin multiplexing, and electrical limits from the official STM8S105 datasheet. PCB layouts should preserve decoupling and exposed-pad thermal requirements where applicable, and firmware must account for alternate-function reassignment when using the numerous I/O pins. This product page consolidates the verified manufacturer and distributor facts, distinguishes the standard T3 ordering from the available T3TR reel variant, and clearly flags technical details that still need datasheet confirmation for engineering use.

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STM8S105C4T6 - 16MHz 8-Bit MCU with 16KB Flash | STMicroelectronics
STM8S105C4T6

STM8S105C4T6 - 16MHz 8-Bit MCU with 16KB Flash | STMicroelectronics

The STMicroelectronics STM8S105C4T6 is an 8-bit access-line microcontroller with a 16 MHz clock, 16 KB of Flash program memory, 2 KB of RAM, and a 48-pin LQFP package. It integrates a 10-bit ADC, true data EEPROM, timers, UART, SPI, and I2C peripherals, while operating from 2.95 V to 5.5 V. The device provides 38 I/O ports for embedded-control designs that need substantial peripheral connectivity without adopting a larger Cortex-M-class MCU. An 8-bit microcontroller is a compact embedded-processing category optimized for control tasks, sensor reading, actuator control, and communication bridging. The STM8S105 belongs to the STM8 access-line hierarchy, combining an 8-bit core with integrated memory and mixed-signal peripherals. Compared with a 32-bit microcontroller, its architecture generally emphasizes lower complexity and efficient deterministic control rather than high-bandwidth computation, making it suitable for cost-sensitive and space-constrained products. Key features include 16 KB of Flash, 2 KB of RAM, a 16 MHz maximum clock, and a 10-bit ADC. Integrated true data EEPROM allows frequently changed parameters to be stored without consuming all program Flash. The peripheral set includes UART, SPI, and I2C interfaces, supporting serial sensors, external memories, displays, and industrial peripherals. The 48-pin LQFP package provides 38 I/O ports and is suitable for automated PCB assembly and prototype-to-production migration. The STM8S105 access-line architecture is designed for embedded control applications requiring mixed analog and digital functions. Its 10-bit ADC supports measurements from switches, resistive sensors, and analog control loops, while the serial interfaces reduce external communication-controller requirements. The 2.95 V to 5.5 V supply range accommodates both 3.3 V and 5 V system rails, although the selected external components and operating limits must follow the manufacturer datasheet. Typical uses include industrial control modules, compact sensor nodes, appliance controllers, building equipment, communication transceivers, and embedded data-acquisition units. The combination of 38 I/O ports, three named serial interface types, timers, and an ADC allows one device to supervise multiple discrete and digital functions while keeping the bill of materials compact. Designers should preserve the exposed-pad and thermal-layout requirements applicable to the LQFP package, place decoupling capacitors close to the supply pins, and verify unused-pin termination against the datasheet. Firmware replacement is not automatically safe across MCU models because bootloader addresses, peripheral behavior, and interrupt-vector layouts must be checked even when the package dimensions match. This page consolidates verified manufacturer and distributor information, package and interface details, sourcing links, and replacement guidance for engineers evaluating the STM8S105C4T6. It also distinguishes confirmed electrical differences from compatibility assumptions, helping PCB, firmware, and procurement teams make a controlled decision.

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STM8S105C4T6TR - 16MHz 8-Bit MCU with 16KB Flash | STMicroelectronics (Tape & Reel)
STM8S105C4T6TR

STM8S105C4T6TR - 16MHz 8-Bit MCU with 16KB Flash | STMicroelectronics (Tape & Reel)

The STMicroelectronics STM8S105C4T6TR is an 8-bit access-line microcontroller with a 16 MHz clock, 16 KB of Flash program memory, 2 KB of RAM, and a 48-pin LQFP package. It integrates a 10-bit ADC, true data EEPROM, timers, UART, SPI, and I2C peripherals, while operating from 2.95 V to 5.5 V. The device provides 38 I/O ports for embedded-control designs that need substantial peripheral connectivity without adopting a larger Cortex-M-class MCU. An 8-bit microcontroller is a compact embedded-processing category optimized for control tasks, sensor reading, actuator control, and communication bridging. The STM8S105 belongs to the STM8 access-line hierarchy, combining an 8-bit core with integrated memory and mixed-signal peripherals. Compared with a 32-bit microcontroller, its architecture generally emphasizes lower complexity and efficient deterministic control rather than high-bandwidth computation, making it suitable for cost-sensitive and space-constrained products. Key features include 16 KB of Flash, 2 KB of RAM, a 16 MHz maximum clock, and a 10-bit ADC. Integrated true data EEPROM allows frequently changed parameters to be stored without consuming all program Flash. The peripheral set includes UART, SPI, and I2C interfaces, supporting serial sensors, external memories, displays, and industrial peripherals. The 48-pin LQFP package provides 38 I/O ports and is suitable for automated PCB assembly and prototype-to-production migration. The STM8S105 access-line architecture is designed for embedded control applications requiring mixed analog and digital functions. Its 10-bit ADC supports measurements from switches, resistive sensors, and analog control loops, while the serial interfaces reduce external communication-controller requirements. The 2.95 V to 5.5 V supply range accommodates both 3.3 V and 5 V system rails, although the selected external components and operating limits must follow the manufacturer datasheet. Typical uses include industrial control modules, compact sensor nodes, appliance controllers, building equipment, communication transceivers, and embedded data-acquisition units. The combination of 38 I/O ports, three named serial interface types, timers, and an ADC allows one device to supervise multiple discrete and digital functions while keeping the bill of materials compact. Designers should preserve the exposed-pad and thermal-layout requirements applicable to the LQFP package, place decoupling capacitors close to the supply pins, and verify unused-pin termination against the datasheet. Firmware replacement is not automatically safe across MCU models because bootloader addresses, peripheral behavior, and interrupt-vector layouts must be checked even when the package dimensions match. This page consolidates verified manufacturer and distributor information, package and interface details, sourcing links, and replacement guidance for engineers evaluating the STM8S105C4T6TR. It also distinguishes confirmed electrical differences from compatibility assumptions, helping PCB, firmware, and procurement teams make a controlled decision.

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STM8S105C6T3 - 16MHz 32KB 8-Bit MCU | STMicroelectronics
STM8S105C6T3

STM8S105C6T3 - 16MHz 32KB 8-Bit MCU | STMicroelectronics

STMicroelectronics STM8S105C6T3 is an 8-bit STM8S access-line microcontroller with a 16 MHz clock, 32 KB of Flash program memory, integrated true data EEPROM, and 38 I/O ports in a 48-LQFP 7 x 7 mm package. It operates from a 2.95 V to 5.5 V supply and is suited to compact embedded-control systems that require mixed analog, digital, and communications peripherals. An 8-bit microcontroller is a compact computing platform that integrates a CPU core, program memory, data memory, and peripherals into one device. The STM8S family belongs to the broader hierarchy of microcontrollers, embedded processors, and semiconductors. Its CISC architecture provides byte-oriented instruction handling and a relatively small hardware footprint, making it useful for cost-sensitive appliances, industrial controls, sensor nodes, and communication equipment. Key features include 32 KB of Flash program memory, 2 KB of SRAM, a 10-bit ADC, UART, SPI, and I2C interfaces, and a maximum clock frequency of 16 MHz. The STM8S105xx access line also incorporates integrated true data EEPROM, allowing nonvolatile parameter retention without occupying the main Flash program area. A 48-LQFP package provides 38 I/O pins, offering substantial connectivity for displays, sensors, actuators, and external communication devices. The device is manufactured using STMicroelectronics proprietary 130 nm embedded non-volatile memory technology. This implementation combines an 8-bit core with a state-of-the-art peripheral set while retaining a conventional 2.95 V to 5.5 V operating range. The 10-bit ADC supports analog measurement tasks, while UART, SPI, and I2C provide paths for external data acquisition, sensor connectivity, and communication with transducers or companion controllers. Typical applications include compact motor and valve controllers, building and industrial automation modules, small sensor interfaces, appliance control boards, and low-cost communication peripherals. Designers can use the 38 available I/O ports for digital interfaces and the ADC for analog inputs, reducing the need for separate expansion components in moderately connected systems. A critical design consideration is the STM8S105C6T3's temperature-grade and order-code designation. The suffix T3 must be checked against the required ambient-temperature range before production release. PCB design should also preserve the package pin arrangement and provide suitable bypass capacitance near the power pins. This page combines verified manufacturer and distributor information, package characteristics, commercially available pricing, drop-in alternatives, comparison data, and practical engineering guidance to support component selection, PCB design, sourcing, and procurement decisions.

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STM8S105C6T6 - 8-bit MCU, 16MHz, 32KB Flash | STMicroelectronics
STM8S105C6T6

STM8S105C6T6 - 8-bit MCU, 16MHz, 32KB Flash | STMicroelectronics

The STM8S105C6T6 is an 8-bit microcontroller from STMicroelectronics' STM8S access line, featuring a 16 MHz advanced STM8 core with Harvard architecture and a 3-stage pipeline. It offers 32 KB of Flash program memory, 2 KB of RAM, and 1 KB of true data EEPROM, making it a cost-effective solution for a wide range of embedded control applications. The device is housed in a 48-pin LQFP package (7x7 mm) and operates over a supply voltage range of 2.95V to 5.5V, with an operating temperature range of -40°C to +85°C. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus, integrating a processor core, memory, and programmable input/output peripherals. The STM8S105C6T6 belongs to the STM8S family, which is part of the broader STM8 microcontroller series, positioned below the 32-bit STM32 family in STMicroelectronics' product hierarchy. It is designed for applications requiring moderate processing power, low power consumption, and rich peripheral integration, such as industrial control, home appliances, and automotive body electronics. Key features include a 10-bit analog-to-digital converter (ADC) with up to 10 channels, multiple 16-bit timers, and a full set of communication interfaces: UART, SPI, and I2C. The device also integrates a true data EEPROM with up to 300,000 write/erase cycles, enabling data storage without external memory. The STM8 core operates at up to 16 MHz, delivering 16 MIPS throughput, and supports a wide range of clock sources including internal RC oscillators and external crystals. The STM8S105C6T6 is built on a high-density Flash technology, providing robust program memory endurance and fast programming. The architecture includes a nested interrupt controller with 28 interrupt vectors, enhancing real-time responsiveness. The device also features a low-power mode with typical current consumption of 5 µA in Halt mode, making it suitable for battery-powered applications. Typical applications include industrial automation, home appliances (e.g., washing machines, air conditioners), power tools, and automotive body control modules. The rich peripheral set and 5V-tolerant I/Os allow direct interfacing with sensors, relays, and displays without level shifting. The LQFP-48 package provides 38 I/O pins, offering ample connectivity for control and communication. When designing with this MCU, ensure proper decoupling of the VDD and VDDA pins with 100 nF capacitors placed close to the device. The NRST pin should be connected to a 100 nF capacitor to ground for reliable reset. For applications requiring precise timing, use an external crystal oscillator with load capacitors as specified in the datasheet.

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STM8S105K4B6 8-Bit 16MHz MCU 16KB Flash | STMicroelectronics
STM8S105K4B6

STM8S105K4B6 8-Bit 16MHz MCU 16KB Flash | STMicroelectronics

The STMicroelectronics STM8S105K4B6 is an 8-bit STM8S series microcontroller operating at 16 MHz, with 16 KB of Flash program memory and 2 KB of RAM, housed in a 32-pin SDIP package. It belongs to the STM8S105x4/6 access-line family, which combines integrated data EEPROM, a 10-bit ADC, timers, UART, SPI, and I2C in an 8-bit embedded-control device. What is an 8-bit microcontroller? An 8-bit MCU is a compact embedded processor whose internal bus and arithmetic operations are organized around eight-bit data. STM8 devices sit within the broader semiconductor and microcontroller hierarchy and are commonly used for cost-sensitive control, sensing, communications, and actuator-control systems. The STM8S105K4B6 provides enough Flash and RAM for compact embedded applications without requiring a higher-complexity processor. Key features include an 8-bit architecture, 16 MHz maximum clocking, 16 KB Flash, 2 KB RAM, and 25 I/O according to the verified distributor specifications. The device also includes a 10-bit ADC, UART, SPI, I2C, timers, and integrated true data EEPROM. These peripherals enable local sensing, serial communication, and motor or relay control while keeping the design compact. The STM8S105K4B6 is identified as part of the STM8S105x4/6 access line, with the manufacturer describing the family as offering 16 to 32 KB Flash and integrated true data EEPROM. The verified product-page result specifically associates this MPN with a 32-SDIP package, 0.400 inch, 10.16 mm. Exact operating voltage, temperature limits, ADC accuracy details, timer ratings, and electrical timing values are not included in the supplied verified data and must be checked against the manufacturer datasheet. Typical applications include small industrial controllers, sensor nodes, serial-interface equipment, LED-control boards, compact instrumentation, and embedded systems using UART, SPI, or I2C. The 16 MHz clock speed supports responsive control-loop execution, while the 10-bit ADC is useful for analog monitoring. A designer should confirm memory-map compatibility, peripheral availability, startup behavior, and electrical limits before replacing another STM8 device in an existing design. For implementation, begin with the manufacturer datasheet and reference manual for exact pin assignments, register definitions, clock settings, and peripheral constraints. Use the official STMicroelectronics product page as the primary lifecycle and family reference. This page synthesizes verified distributor specifications, procurement information, application context, and replacement guidance without inventing unavailable electrical details.

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STM8S105K4T3C - 16MHz 16KB Flash 32-Pin LQFP | STMicroelectronics
STM8S105K4T3C

STM8S105K4T3C - 16MHz 16KB Flash 32-Pin LQFP | STMicroelectronics

The STMicroelectronics STM8S105K4T3C is an 8-bit STM8S access-line microcontroller with a 16 MHz clock, 16 KB of Flash program memory, 2 KB of RAM, integrated true data EEPROM, and a 32-pin LQFP package. It operates across a 2.95 V to 5.5 V supply range and is specified for industrial temperature operation from -40 °C to +125 °C. The STM8S family belongs to the hierarchy of 8-bit microcontrollers, embedded processors, and general-purpose semiconductor control devices. This access-line MCU combines an 8-bit CPU core with timers, UART, SPI, I²C, and a 10-bit ADC, making it suitable for cost-sensitive embedded control, sensor monitoring, communication, and actuator-control designs. Integrated true data EEPROM allows frequently changed parameters to be retained without external nonvolatile memory. Key features of the STM8S105K4T3C include up to 16 KB of Flash memory, 2 KB of SRAM, 16 MHz maximum operating frequency, 38 I/O ports, a 10-bit ADC, and support for the STM8 communication peripherals. The 2.95 V minimum operating voltage supports systems designed around 3.3 V rails, while the 5.5 V maximum provides compatibility with conventional 5 V industrial and embedded control environments. The device is a medium-density member of the STM8S105x4/6 access line and is described in the STM8S family reference manual. Its combination of integrated EEPROM, serial interfaces, timers, and ADC functionality reduces external component count in compact control systems. The LQFP-32 package provides exposed leads that support conventional PCB assembly and inspection processes. Typical applications include industrial sensor modules, building-control endpoints, appliance controllers, small motor-control boards, communication transceivers, and low-cost embedded automation products. When designing a board, confirm the exact pin multiplexing, oscillator requirements, reset circuit, and peripheral assignment against the manufacturer datasheet before finalizing the PCB. A key design consideration is the difference between the STM8S105K4 and STM8S105K6 devices. The K4 selection provides 16 KB of Flash, while related K6 options provide higher memory capacity and may require different firmware planning. Use the Request a Quote form on this page for current sourcing, price, stock, and lead-time information.

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STM8S105K4T6 - 8-bit MCU, 16KB Flash, 16MHz | STMicroelectronics
STM8S105K4T6

STM8S105K4T6 - 8-bit MCU, 16KB Flash, 16MHz | STMicroelectronics

The STM8S105K4T6 is an 8-bit microcontroller from STMicroelectronics' STM8S access line, featuring a 16 MHz STM8 core, 16 KB of Flash program memory, and 1 KB of true data EEPROM. It comes in a 32-pin LQFP package, offering a compact footprint for space-constrained embedded applications. The device operates over a supply voltage range of 2.95V to 5.5V, making it suitable for both 3.3V and 5V systems. An 8-bit microcontroller (MCU) is a single-chip computer containing a processor core, memory, and programmable input/output peripherals. The STM8S105K4T6 belongs to the STM8S family, which is designed for cost-sensitive industrial and consumer applications. As a medium-density device per reference manual RM0016, it balances performance and peripheral integration, providing a 10-bit ADC, multiple timers, and standard communication interfaces like UART, SPI, and I2C. Key features include a 16 MHz CPU clock delivering up to 16 MIPS, 16 KB Flash with read-while-write capability, 1 KB EEPROM with up to 300k write/erase cycles, and a 10-bit ADC with up to 7 channels. The device integrates a 16-bit advanced control timer, two 16-bit general-purpose timers, and a basic timer, plus UART, SPI, and I2C interfaces for connectivity with sensors, displays, and other peripherals. The STM8S105K4T6 uses a Harvard-architecture STM8 core with a 3-stage pipeline. An embedded SWIM debug module enables in-circuit debugging and programming, reducing development time. The clock system offers internal and external oscillator options, including a low-power crystal oscillator and a PLL for clock multiplication. Typical applications include industrial control, home appliances, sensor interfaces, and motor control. Its wide operating voltage range and industrial temperature grade (-40C to +85C) make it suitable for harsh environments. The integrated EEPROM eliminates external storage in many designs, reducing BOM cost. When designing with this MCU, ensure proper decoupling of power supply pins and consider the thermal characteristics of the LQFP-32 package. Reserve the SWIM interface for programming and debugging. For low-power designs, use Active-halt and Halt modes to minimize current consumption.

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STM8S105K4T6C - 16MHz 8-bit MCU, 16KB Flash | STMicroelectronics
STM8S105K4T6C

STM8S105K4T6C - 16MHz 8-bit MCU, 16KB Flash | STMicroelectronics

The STMicroelectronics STM8S105K4T6C is an 8-bit STM8S access-line microcontroller with a 16 MHz core, 16 KB of Flash program memory, 2 KB of RAM, and 1 KB of integrated EEPROM in a 32-pin LQFP package. It is designed for compact embedded-control systems requiring serial communication, analog measurement, and general-purpose timer and I/O resources. An 8-bit microcontroller is a programmable semiconductor device that executes a firmware instruction set and connects external sensors, actuators, and communication circuits through dedicated digital and analog peripherals. STM8S devices belong to the STM8 embedded-control family and combine a low-cost controller core with EEPROM, timers, UART, SPI, I2C, LIN, and ADC capabilities for compact industrial and consumer equipment. The STM8S105K4T6C provides 16 KB of Flash memory, 2 KB of RAM, and 1 KB of true data EEPROM. Its 7-channel 10-bit ADC supports analog signal acquisition, while the integrated UART, SPI, I2C, and LIN interfaces support communication with sensors, transceivers, displays, and industrial controllers. The device operates from a 3.3 V to 5 V supply range and is specified for -40°C to +85°C ambient operation. The STM8S core and peripheral arrangement make this device suitable for real-time control tasks that do not require a high-performance 32-bit processor. Eight timer resources support timing, pulse capture, output compare, motor-control, and periodic service functions. The 10-bit ADC resolution is appropriate for monitoring potentiometers, thermistors, and other slowly changing analog quantities in cost-sensitive embedded products. Typical applications include industrial control panels, motor and actuator controllers, BLDC motor-support subsystems, communication modules, and compact consumer appliances. The LQFP-32 package provides a conventional leaded surface-mount format that is practical for prototypes, automated assembly, and designs requiring easy visual inspection. Designers should verify the exact pin assignments, electrical limits, clock configuration, and peripheral multiplexing in the STMicroelectronics datasheet before layout. Because the STM8S105K4T6C combines analog measurement and multiple serial interfaces on a 32-pin device, unused pins, decoupling requirements, and signal routing should be checked early in the PCB design. This product page combines the manufacturer’s STM8S105K4 and STM8S105K4/6 family information, exact MPN identification, practical application guidance, and engineering-focused comparisons. It is intended to help engineers confirm memory capacity, interface coverage, package compatibility, and replacement options before integrating the MCU into an embedded-control design.

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STM8S105K6B6 - 8-Bit 16MHz 32KB MCU | STMicroelectronics
STM8S105K6B6

STM8S105K6B6 - 8-Bit 16MHz 32KB MCU | STMicroelectronics

The STMicroelectronics STM8S105K6B6 is an 8-bit STM8S series microcontroller operating up to 16 MHz, with 32 KB of Flash program memory and a 32-pin SDIP package. The device also provides integrated EEPROM, 25 I/O pins, mixed-signal acquisition, timers, and serial connectivity. It is positioned for compact embedded control, sensing, communications, and motor-control systems requiring an 8-bit MCU with integrated memory and peripherals. A microcontroller is a programmable semiconductor that integrates a processor core, memory, input/output ports, timers, and communication peripherals on one device. The STM8S105K6B6 belongs to the STM8S access-line family: an 8-bit MCU platform intended for compact control systems where deterministic peripheral access, low component count, and simple embedded software development are important. Its 32 KB Flash provides room for application firmware, while integrated data EEPROM supports parameter storage and calibration data. The verified specifications identify a 16 MHz operating frequency, 32 KB Flash organized as 32K × 8, 2K × 8 RAM, 25 I/O pins, and a 10-bit ADC. The verified sources also identify UART, SPI, I2C, timers, and mixed-signal acquisition capabilities. These peripherals allow the MCU to connect sensors, communicate with external controllers, generate timing signals, and perform basic analog measurements without requiring several discrete support devices. The STM8S105K6B6 is packaged in a 32-SDIP through-hole format with a stated 0.400-inch, 10.16 mm package dimension. Through-hole construction can simplify prototype assembly, inspection, and manual rework compared with fine-pitch surface-mount packages. The device is suitable for applications such as compact motor controllers, industrial sensing modules, communication interfaces, and embedded automation products, provided the firmware and board design are verified against the manufacturer datasheet. Designers should verify supply voltage, clock configuration, peripheral pin multiplexing, ADC accuracy, reset behavior, and programming requirements against the manufacturer datasheet before release. The 8-bit architecture and 32 KB Flash footprint are appropriate for focused control tasks, but software memory planning is essential when combining multiple communication protocols and control functions. Verify exact electrical limits and package details before using the device as a drop-in replacement for another MCU. This page consolidates verified distributor specifications, official manufacturer information, pricing context, sourcing links, and engineering guidance. It does not infer unprovided electrical limits, pin names, lifecycle claims, or alternative-device compatibility. For production use, confirm the current manufacturer datasheet, package drawing, programming toolchain, and distributor inventory.

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STM8S105K6T6C - 16MHz 8-Bit MCU, 32KB Flash | STMicroelectronics
STM8S105K6T6C

STM8S105K6T6C - 16MHz 8-Bit MCU, 32KB Flash | STMicroelectronics

The STMicroelectronics STM8S105K6T6C is an 8-bit STM8S access-line microcontroller operating at 16 MHz, with 32 KB of Flash program memory and integrated true data EEPROM in a 32-pin LQFP tray package. It supports operation from 3.3 V to 5 V, making it suitable for compact embedded-control systems that require deterministic performance and a broad peripheral set in a moderate-size surface-mount footprint. An 8-bit microcontroller is a programmable semiconductor that integrates a CPU core, Flash memory, data memory, I/O ports, and embedded peripherals on one device. The STM8S105 access line belongs to the STM8 family of 8-bit microcontrollers and is positioned between the simpler STM8S105x4 devices with 16 KB of Flash and the STM8S105x6 devices with 32 KB of Flash. This hierarchy provides more application memory without moving to a larger 32-bit MCU architecture. The STM8S105K6T6C combines a 16 MHz maximum clock with 32 KB of Flash program memory in 32 KB × 8 organization. Its integrated true data EEPROM supports nonvolatile data retention directly on the MCU, which is useful for calibration values, configuration records, counters, and serialized product data. The 3.3 V and 5 V operating range also supports both legacy 5 V systems and modern 3.3 V peripherals when the board-level limits are respected. The STM8S105K6 architecture is based on the ST7 core described for the STM8S family and uses an 8-bit CISC instruction set. Compared with a small resource-constrained MCU, the 32 KB Flash option provides more room for application code, drivers, protocol handlers, and field-upgrade logic. Compared with a 32-bit MCU, it remains focused on lower-cost control tasks where an 8-bit CPU and simple embedded toolchain are sufficient. Typical uses include appliance controllers, small sensor-hub nodes, keypad interfaces, LED-control boards, compact motor-control peripherals, and industrial automation modules. The 32-pin LQFP package exposes more I/O than smaller leadless packages and remains practical for prototype boards, automated assembly, and repair workflows where a leaded package improves visual inspection. Designers should preserve the MCU power and decoupling layout shown in the manufacturer datasheet, verify the selected oscillator and reset implementation, and confirm every peripheral pin against the exact package drawing. Use the USB-to-UART programming interface and firmware configuration appropriate to the selected ST8 development toolchain, and allow for the operating-temperature grade denoted by the final order code. This product page organizes the core device identity, verified specifications, sourcing information, engineering guidance, and same-family references in one place. It also highlights the practical differences among temperature-grade and Flash-density order codes so engineers can make a replacement decision without assuming that every STM8S105 variant is electrically interchangeable.

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STM8S105K6U6A - 16MHz 32KB 8-Bit MCU | STMicroelectronics
STM8S105K6U6A

STM8S105K6U6A - 16MHz 32KB 8-Bit MCU | STMicroelectronics

STMicroelectronics STM8S105K6U6A is an 8-bit STM8S access-line microcontroller with a 16 MHz maximum clock, 32 KB of Flash program memory, 2 KB of RAM, and 25 I/O ports in a 32-pin UFQFPN package measuring 5 mm by 5 mm. The device also includes integrated true data EEPROM, a 10-bit ADC, timers, UART, SPI, and I2C interfaces. An 8-bit microcontroller is a compact embedded computing device that executes firmware from nonvolatile program memory and controls peripherals through configurable input/output pins. In the product hierarchy, the STM8S105K6U6A is an STM8-family microcontroller within STMicroelectronics' broader STM8 access line. This category is suited to cost-sensitive embedded products that need moderate processing performance, serial communication, analog measurement, and deterministic peripheral control without a higher-complexity processor. The principal features of this part include a 16 MHz clock, 32 KB of Flash memory, 2 KB of RAM, 25 available I/O lines, and a 10-bit ADC. Communications and timing resources include UART, SPI, and I2C interfaces, while integrated timers support periodic events, timing functions, and motor or signal-control applications. Its 32-pin UFQFPN package provides a compact surface-mount footprint while exposing a broad collection of digital and analog functions. The STM8S105 architecture provides an economical balance between processing capability and embedded I/O. Flash memory supports firmware storage, RAM supports working data, and integrated EEPROM can retain configuration or calibration information without external memory. The combination of 16 MHz operation, dedicated serial peripherals, and a 10-bit ADC allows one controller to supervise sensors, communicate with external logic, and coordinate timing-sensitive outputs. Typical applications include compact industrial controllers, building and access-control modules, appliance control boards, sensor interfaces, compact motor controllers, and low-cost communication equipment. The UART, SPI, and I2C peripherals allow the MCU to connect to sensors, displays, transceivers, memories, and other digital components while the ADC supports analog inputs within appropriate operating limits. PCB design should preserve the manufacturer's recommended decoupling, exposed-pad, clock, and analog-input layout practices. The exposed pad beneath the UFQFPN package requires an appropriate land pattern and thermal-via arrangement, while power and signal paths should be routed to minimize noise coupling into ADC measurements. This product page combines manufacturer and distributor specifications with focused engineering guidance covering interface selection, PCB implementation, and drop-in replacement constraints. It also distinguishes a true same-footprint replacement from nearby devices that differ in package or memory configuration, helping engineers evaluate redesign risk before committing a component to a new board revision.

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