Microcontrollers

Products (20,000+)

ATTINY24A-MU - 20MHz 8-Bit AVR MCU | Microchip
ATTINY24A-MU

ATTINY24A-MU - 20MHz 8-Bit AVR MCU | Microchip

The Microchip Technology ATTINY24A-MU is a 20 MHz 8-bit AVR RISC-based microcontroller with 2 KB of in-system programmable Flash memory, 128 bytes of EEPROM, 128 bytes of SRAM, and 12 general-purpose I/O lines. It is packaged in a 20-pin QFN with exposed pad, identified as 20-QFN-EP in a 4 x 4 mm footprint. The device also provides 32 general-purpose working registers and an 8-bit timer/counter with two PWM channels. An 8-bit AVR microcontroller is a compact embedded-control semiconductor that combines a RISC processor core, program memory, data memory, timers, serial interfaces, and general-purpose I/O in one package. The ATtiny24A belongs to Microchip's TinyAVR family and uses picoPower technology to support low-power embedded designs. Its combination of modest memory capacity, 12 I/O lines, and PWM-capable timing resources suits compact controllers, interface modules, and small control systems. The ATtiny24A's principal resources include 2 KB of ISP Flash, 128 bytes of EEPROM, and 128 bytes of SRAM. Twelve I/O lines allow external sensors, actuators, buttons, indicators, and communication interfaces to be connected while retaining a compact package. The 8-bit timer/counter with two PWM channels supports periodic timing, signal generation, motor control, and basic dimming or waveform applications without requiring a separate timer device. Operating at up to 20 MHz gives the AVR core enough throughput for embedded control loops, protocol handling, and state-machine workloads. ISP programming supports in-circuit firmware updates when the board exposes the programming interface. The 1.8 V to 5.5 V operating-voltage range allows the same controller architecture to be used in low-voltage and conventional 5 V systems, while careful decoupling and signal-level design remain essential at the lower voltage limit. Typical uses include compact motor controllers, LED drivers, sensor-interface boards, programmable timers, building-control modules, and small industrial or consumer appliances. The 20-pin QFN-EP package supports dense PCB layouts, and its exposed pad provides a direct thermal path to the board. Designers should preserve the pad's soldering and copper requirements while ensuring adequate clearance around adjacent signal pins. The principal design trade-off is limited memory. Two KB of Flash limits code size, while 128 bytes of SRAM restricts buffered data structures. Applications with larger protocol stacks or touchscreens may require a higher-density AVR or another MCU family. Firmware should use the available registers efficiently, and unused I/O pins should be terminated according to the device pin-description table. This product page combines the manufacturer specifications, verified distributor listings, package information, family distinctions, and practical design guidance in one place. It also separates true drop-in alternatives from related devices that use different packages or materially different memory configurations, helping engineers make a PCB-safe replacement decision.

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ATTINY24A-PU 8-Bit 20MHz AVR MCU | Microchip Technology
ATTINY24A-PU

ATTINY24A-PU 8-Bit 20MHz AVR MCU | Microchip Technology

The Microchip Technology ATTINY24A-PU is an 8-bit AVR RISC-based microcontroller with picoPower technology, a 20 MHz maximum operating frequency, 2 KB of ISP Flash memory, 128 bytes of EEPROM, 128 bytes of SRAM, and 12 general-purpose I/O lines. It is supplied in a 14-pin Plastic Dual Inline Package (PDIP) and operates across the 1.8 V to 5.5 V supply range for industrial-temperature designs. The ATTINY24A-PU is the PDIP package variant of the ATtiny24A family, making it suitable for through-hole prototypes, educational platforms, legacy control boards, and low-cost embedded systems that require in-system programming. An 8-bit AVR microcontroller is a compact embedded controller that executes instructions from reduced instruction set computer architecture in a single clock cycle for most instructions. The ATTINY24A family combines an 8-bit AVR core with 32 general-purpose working registers, 2 KB of programmable Flash, 128 bytes of EEPROM for nonvolatile data, and 128 bytes of SRAM for working memory. Its 12 GPIO lines can be configured for digital input, output, or peripheral functions, while the integrated timer/counter provides timing and PWM capability for motor, lighting, and signal-generation applications. Key features include support for In-System Programming, an 8-bit timer/counter with two PWM channels, and a low-power picoPower design. The 2 KB Flash capacity is sufficient for compact control firmware, sensor conditioning, simple communication protocols, and utility functions rather than complex graphical or connectivity-heavy applications. The ATTINY24A-PU operates from 1.8 V to 5.5 V, allowing operation from low-voltage cells, regulated 3.3 V rails, and legacy 5 V systems. The ATTINY24A-PU is useful in industrial controls, LED lighting modules, battery-powered instruments, fan and pump controllers, automotive accessories, and small sensor nodes. Its through-hole PDIP package is easy to prototype and hand-solder, although a surface-mount variant such as ATTINY24A-SSU is generally preferable for compact production assemblies. The ATtiny24A family is also a documented functional and drop-in replacement for the earlier ATtiny24, ATtiny44, and ATtiny84 devices, according to Microchip application note AVR526. When designing with the ATTINY24A-PU, confirm that the 14-pin PDIP footprint, 1.8 V minimum operating voltage, and available firmware resources match the target board. Use ISP for programming and include a decoupling capacitor near the supply pins. This page combines verified distributor and manufacturer information with package-level design guidance, practical application context, and drop-in replacement analysis.

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ATTINY26L-8SU - 8-bit AVR MCU, 2KB Flash, 8MHz | Microchip
ATTINY26L-8SU

ATTINY26L-8SU - 8-bit AVR MCU, 2KB Flash, 8MHz | Microchip

The Microchip (Atmel) ATTINY26L-8SU is a high-performance, low-power 8-bit AVR RISC-based microcontroller combining 2KB of in-system programmable Flash, 128 bytes EEPROM, and 128 bytes SRAM in a 20-pin SOIC package. Operating at up to 8MHz with throughput approaching 1 MIPS per MHz, the device integrates 11-channel 10-bit ADC, two 8-bit Timer/Counters (one with PWM outputs), a programmable Watchdog Timer, and up to 16 general-purpose I/O lines, all in a compact 20-SOIC footprint. An 8-bit AVR microcontroller (MCU) is a single-chip computer built around the AVR enhanced RISC architecture, executing most instructions in a single clock cycle. Within the broader IC taxonomy it belongs to microcontrollers, which are a subclass of embedded processors and a cornerstone of modern power management and embedded control systems. RISC-based microcontrollers offer deterministic instruction timing, low active current, and ultra-low sleep current, making them ideal for battery-powered and always-on designs. Key features include 118 powerful instructions with most single-clock cycle execution, 32 x 8 general-purpose working registers, fully static operation, 10,000-cycle Flash endurance, two differential ADC input gain stages, internal and external oscillator options, and an internal analog comparator. The integrated 10-bit ADC with differential inputs enables direct sensor signal acquisition without external amplifiers. The L-grade silicon supports 2.7V to 5.5V operation versus the standard grade's 4.5V to 5.5V, enabling battery and 3.3V system compatibility. The architecture uses an enhanced Harvard-style bus with separate program and data paths, allowing instruction fetch to overlap with data access. Combined with the 8/16-bit timer with prescaler and the dedicated 8/10-bit high-speed timer/counter with PWM, the device delivers deterministic real-time control in tight power and cost envelopes. Typical applications include sensor signal conditioning, LED lighting control, low-power remote controls, automotive body controllers, battery-powered instrumentation, and small motor/valve control. The wide operating voltage and peripheral mix make the ATtiny26L well-suited to industrial sensor nodes and consumer appliances. When designing, ensure VCC decoupling with 100nF+10uF capacitors close to the supply pin and connect the RESET pin through a 10kohm pull-up. The L-grade variant is recommended for 3.3V operation, while the non-L part is preferred above 4.5V supply for maximum clock speed. This page synthesizes distributor pricing, drop-in alternatives, and design considerations not found in the manufacturer datasheet alone.

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ATTINY4-MAHR - 8-Bit 12MHz AVR MCU | Microchip Technology
ATTINY4-MAHR

ATTINY4-MAHR - 8-Bit 12MHz AVR MCU | Microchip Technology

The Microchip Technology ATTINY4-MAHR is an 8-bit AVR RISC microcontroller with a 12 MHz maximum clock frequency, 512 bytes of program Flash memory, and 32 bytes of SRAM, housed in an 8-pin UDFN/USON package with an exposed pad. The device combines four general-purpose I/O lines with an internal oscillator, a 4-channel 8-bit ADC, SPI and USI connectivity, and dedicated timer resources for compact control applications. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, and peripherals into one package. The ATTINY4 belongs to the TinyAVR family within Microchip's 8-bit AVR portfolio. Its enhanced RISC architecture executes many instructions in a single clock cycle, supporting throughput close to 1 MIPS per MHz while keeping power consumption low enough for compact embedded control, sensing, and actuator-control systems. The principal device characteristics include 512 bytes of Flash organized as 256 words by 16 bits, 32 bytes of SRAM, 12 general-purpose working registers, and an internal oscillator. The 4-channel, 8-bit ADC supports basic analog measurement, while SPI and USI provide serial communication options. An 8-bit timer/counter with two PWM channels and a 16-bit timer/counter support timing, waveform generation, and periodic control tasks. The ATTINY4-MAHR uses the AVR enhanced RISC architecture and a low-power CMOS implementation. Its limited memory footprint makes code size and stack planning important, especially when applications combine ADC readings, serial communications, and PWM outputs. The nickel-palladium-gold termination and green package designation identify the physical construction used for this ordering variant. Typical uses include low-cost sensor nodes, compact LED or fan controllers, simple keypad interfaces, battery-powered instruments, and small industrial control modules. The four available I/O lines favor designs where the MCU performs sequencing or supervisory control rather than high-pin-count connectivity. The 12 MHz operating limit provides more timing headroom than many simple low-power state machines while retaining a compact footprint. Design the exposed-pad connection, decoupling, programming interface, and power entry carefully. Confirm the package drawing, recommended land pattern, voltage limits, and pin multiplexing in the manufacturer datasheet before layout release. The MAHR package suffix should be matched exactly when replacing the device because package and termination variants can have different ordering details. This page organizes the ATtiny4 technical characteristics, sourcing information, and replacement guidance into a compact engineering reference. It also distinguishes verified device functions from parameters that require the exact package drawing, helping designers evaluate the ATTINY4-MAHR before schematic capture, PCB layout, firmware development, and sourcing approval.

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ATTINY4-TS8R - 8-Bit 512B AVR MCU | Microchip
ATTINY4-TS8R

ATTINY4-TS8R - 8-Bit 512B AVR MCU | Microchip

The Microchip Technology ATTINY4-TS8R is a factory-programmable 8-bit AVR microcontroller with 512 bytes of program flash, 32 bytes of SRAM, four I/O pins, and a 10 MHz maximum speed, supplied in an SOT-23-6 surface-mount package. It is designed for compact control, sequencing, and low-cost embedded functions where deterministic single-cycle instruction execution and minimal component count matter more than memory-intensive application processing. An 8-bit microcontroller is a programmable control device that combines a processor core, nonvolatile program memory, data memory, I/O ports, and embedded peripherals on one integrated circuit. The ATTINY4 belongs to the ATtiny family, a TinyAVR subset of the AVR enhanced RISC architecture. Its compact footprint allows it to fit close to sensors, switches, indicator circuits, and actuators, while the four I/O pins provide direct digital interaction with the surrounding system. Verified listings identify 512 bytes of flash, 32 bytes of SRAM, four I/O pins, an internal oscillator, and SOT-23-6 packaging. Distributor and comparison data also identify power-on reset, pulse-width modulation, and watchdog timer support. The manufacturer datasheet describes the ATtiny4/5/9/10 family as a low-power CMOS AVR platform whose enhanced RISC architecture executes most instructions in a single clock cycle, providing throughput close to 1 MIPS per MHz. This execution model is useful for small state machines and tightly bounded control loops. The ATTINY4-TS8R is particularly suitable for simple embedded controllers, sensor interfaces, indicator logic, keyboard or switch scanning, and compact sequencing systems. Its 512-byte program memory limits application complexity, while 32 bytes of SRAM requires careful data allocation and avoidance of unnecessary library overhead. A production design should verify that its reset behavior, oscillator requirements, programming method, and electrical limits fit the intended product. The -TS8R ordering suffix identifies the supplied SOT-23-6 tape-and-reel configuration, while factory programmability allows device-specific firmware to be preloaded before shipment. Designers should confirm the exact programming and labeling workflow with Microchip, account for programming pins and exposed product programming requirements, and validate the assembled firmware under the target voltage, temperature, and load conditions. MicrochipDirect reports the part as factory programmable and in stock, with an estimated shipment date shown for 15-Oct-2026. This page combines the verified distributor specifications, manufacturer-oriented datasheet links, package details, sourcing data, and practical design guidance for ATTINY4-TS8R. Because the supplied search data does not expose the complete electrical timing tables, pin-level programming requirements, or verified pricing tiers, those values remain explicitly identified as needed rather than inferred. This page provides an honest basis for initial design review, procurement comparison, and follow-up validation against the manufacturer documentation.

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ATTINY4-TSHR - 12MHz 8-Bit AVR MCU | Microchip
ATTINY4-TSHR

ATTINY4-TSHR - 12MHz 8-Bit AVR MCU | Microchip

The Microchip Technology ATTINY4-TSHR is a low-power, 8-bit AVR RISC microcontroller with a 12 MHz maximum clock, 512 bytes of in-system programmable Flash memory, and a 32-byte SRAM in a 6-pin SOT-23-6 package. It is designed for compact embedded-control tasks that require deterministic digital I/O, timer support, and low board-space consumption. What is an 8-bit microcontroller? An MCU is an integrated circuit containing a processor core, program memory, data memory, I/O ports, and embedded peripherals. The AVR enhanced RISC architecture uses single-clock-cycle instruction execution, allowing the ATTINY4-TSHR to provide useful control throughput in a very small package. In the hierarchy of electronic components, it belongs to the microcontroller, embedded processor, and semiconductor categories. Key verified features include 512 bytes of Flash memory, 32 bytes of SRAM, a 12 MHz operating frequency, and 8-bit AVR processing. Distributor listings identify the device as a 6-pin SOT-23-6 part and indicate support for 2.5 V, 3.3 V, and 5 V supply variants. Its small package makes it suitable for board-constrained products, but designers should verify the exact electrical limits and pin functions against the manufacturer documentation before layout or firmware release. The ATTINY4-TSHR is positioned for simple control logic rather than high-throughput embedded processing. Its limited memory footprint favors compact programs, state machines, debounce logic, indicators, and basic timing functions. The device can be evaluated for simple sensor conditioning, low-speed communication, actuator control, and auxiliary system functions where the application does not require large buffers or complex networking. Typical design work should begin by confirming the supply voltage, oscillator configuration, I/O direction, reset behavior, and programming interface. Because the package has only six pins, pin multiplexing and exposed-pad or programming considerations require careful schematic review. Use the manufacturer datasheet as the authoritative source for pin names, electrical limits, programming requirements, and operating conditions. A key selection consideration is that ATTINY4-TSHR is a highly constrained MCU with only 512 bytes of Flash and 32 bytes of SRAM. Choose it when the control task is simple and board area is more important than memory capacity or peripheral breadth. For designs needing larger firmware storage, more SRAM, or a broader peripheral set, compare the ATtiny family or another microcontroller family rather than assuming this part can scale. This page combines verified distributor specifications, manufacturer and datasheet references, application guidance, and same-family comparison information to support practical selection. Confirm the exact orderable configuration, lifecycle status, and current commercial terms with Microchip or an authorized distributor before committing a production design.

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ATTINY40-MMH - 8-Bit AVR MCU, 4KB Flash, 12MHz | Microchip Technology
ATTINY40-MMH

ATTINY40-MMH - 8-Bit AVR MCU, 4KB Flash, 12MHz | Microchip Technology

Microchip Technology ATTINY40-MMH is an 8-bit AVR RISC-based microcontroller with 4 KB of ISP Flash memory, 256 bytes of SRAM, 12 general-purpose I/O lines, and operation up to 12 MHz in the MMH package. The ATtiny40 combines a compact low-power CMOS design with an enhanced RISC architecture and an instruction set capable of approaching 1 MIPS per MHz, making it suitable for compact embedded control, sensing, and low-power automation tasks. The ATTINY40 is a TinyAVR microcontroller, a subfamily of the 8-bit AVR family of RISC-based embedded controllers. Its on-chip resources combine program memory, SRAM, general-purpose registers, I/O, timers, and PWM functions in a small device intended for applications where control logic must operate reliably with limited memory and board area. The microcontroller's 12 I/O lines provide interfaces for sensors, switches, indicators, actuators, and external control signals. Key features include 4 KB of ISP Flash memory, 256 bytes of SRAM, 16 general-purpose working registers, an 8-bit timer/counter with two PWM channels, and an additional 8/16-bit timer/counter. The 12 MHz operating speed supports responsive control-loop execution while the low-power CMOS architecture is suitable for battery-operated and embedded systems. The device uses an AVR enhanced RISC core with most instructions executing in a single clock cycle. Typical uses include compact industrial control modules, temperature and environmental monitoring, LED and lighting controllers, small motor-control systems, keypad interfaces, sensor nodes, and programmable control boards. The ATtiny40 is useful when firmware logic, digital I/O, timers, and PWM are required without a high pin count or a larger general-purpose MCU package. When designing around the ATTINY40-MMH, verify the MMH package drawing, pin assignments, clock source, programming interface, and electrical limits in the manufacturer datasheet before PCB layout. Keep ISP programming access available during development, confirm decoupling requirements at the supply pins, and check PWM timer behavior against the intended load. This page combines the device specifications, application guidance, comparison considerations, and practical design notes needed for initial engineering evaluation.

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ATTINY40-SU - 12MHz 8-Bit AVR MCU, 4KB Flash | Microchip
ATTINY40-SU

ATTINY40-SU - 12MHz 8-Bit AVR MCU, 4KB Flash | Microchip

The Microchip Technology ATTINY40-SU is a low-power CMOS 8-bit AVR microcontroller with 4 KB In-System Programming Flash memory, 256 B SRAM, 12 general-purpose I/O lines, and a maximum clock frequency of 12 MHz, all housed in a 20-pin SOIC package. It executes the compact AVR enhanced RISC architecture and combines 16 general-purpose working registers with an 8-bit timer/counter featuring two PWM channels. An 8-bit AVR microcontroller is a compact embedded controller that executes firmware instructions on a Harvard-style architecture, balancing processing capability, memory efficiency, and low power consumption. The AVR family belongs to the broader hierarchy of microcontrollers, embedded processors, and semiconductors. TinyAVR devices are particularly useful for cost-sensitive control, monitoring, signal-generation, and communication tasks where a larger MCU would add unnecessary cost or board area. Key verified features include 4 KB flash organized as 2K by 16 words, 256 B SRAM, 12 I/O lines, 16 working registers, and an 8-bit timer/counter with two PWM channels. Its 12 MHz maximum frequency provides substantially more instruction throughput than lower-clock ATtiny devices. The 20-pin SOIC package also supports conventional surface-mount assembly while exposing enough pins for power, clock, programming, reset, I/O, and timer functions. The AVR enhanced RISC architecture supports efficient execution of firmware commonly written for AVR-compatible toolchains. The processor architecture and instruction set should be reviewed against the manufacturer datasheet before porting code, especially when the replacement MCU has a different instruction set, peripheral arrangement, interrupt vector table, or programming interface. The supplied sources do not expose detailed ADC, comparator, timer-resolution, or electrical operating-limit values. Typical uses include compact industrial controls, LED and general-purpose dimming, simple sensor acquisition, small motor or actuator control, battery-powered monitoring, and embedded interface modules. Its two PWM channels can support timing, dimming, or basic proportional actuator functions, while the 12 I/O lines provide flexibility for switches, indicators, sensors, and external logic. When designing a PCB, reserve the programming and reset connections, route clock and decoupling pins according to the manufacturer reference layout, and confirm that every external signal remains within the device’s verified voltage limits. Because the verified snippets do not supply a numerical operating-voltage range, ADC resolution, pin electrical limits, or package dimensions, those values must be checked in the official ATtiny40 documentation before release to manufacturing. This product page combines verified Microchip and distributor data, source-backed availability links, practical application guidance, and explicit data-gap markers. It does not infer unverified electrical specifications or present functional comparators as drop-in replacements when pin or peripheral compatibility has not been demonstrated.

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ATTINY40-SUR - 12MHz 8-Bit AVR MCU, 4KB Flash | Microchip (Tape & Reel)
ATTINY40-SUR

ATTINY40-SUR - 12MHz 8-Bit AVR MCU, 4KB Flash | Microchip (Tape & Reel)

The Microchip Technology ATTINY40-SUR is a low-power CMOS 8-bit AVR microcontroller with 4 KB In-System Programming Flash memory, 256 B SRAM, 12 general-purpose I/O lines, and a maximum clock frequency of 12 MHz, all housed in a 20-pin SOIC package. It executes the compact AVR enhanced RISC architecture and combines 16 general-purpose working registers with an 8-bit timer/counter featuring two PWM channels. An 8-bit AVR microcontroller is a compact embedded controller that executes firmware instructions on a Harvard-style architecture, balancing processing capability, memory efficiency, and low power consumption. The AVR family belongs to the broader hierarchy of microcontrollers, embedded processors, and semiconductors. TinyAVR devices are particularly useful for cost-sensitive control, monitoring, signal-generation, and communication tasks where a larger MCU would add unnecessary cost or board area. Key verified features include 4 KB flash organized as 2K by 16 words, 256 B SRAM, 12 I/O lines, 16 working registers, and an 8-bit timer/counter with two PWM channels. Its 12 MHz maximum frequency provides substantially more instruction throughput than lower-clock ATtiny devices. The 20-pin SOIC package also supports conventional surface-mount assembly while exposing enough pins for power, clock, programming, reset, I/O, and timer functions. The AVR enhanced RISC architecture supports efficient execution of firmware commonly written for AVR-compatible toolchains. The processor architecture and instruction set should be reviewed against the manufacturer datasheet before porting code, especially when the replacement MCU has a different instruction set, peripheral arrangement, interrupt vector table, or programming interface. The supplied sources do not expose detailed ADC, comparator, timer-resolution, or electrical operating-limit values. Typical uses include compact industrial controls, LED and general-purpose dimming, simple sensor acquisition, small motor or actuator control, battery-powered monitoring, and embedded interface modules. Its two PWM channels can support timing, dimming, or basic proportional actuator functions, while the 12 I/O lines provide flexibility for switches, indicators, sensors, and external logic. When designing a PCB, reserve the programming and reset connections, route clock and decoupling pins according to the manufacturer reference layout, and confirm that every external signal remains within the device’s verified voltage limits. Because the verified snippets do not supply a numerical operating-voltage range, ADC resolution, pin electrical limits, or package dimensions, those values must be checked in the official ATtiny40 documentation before release to manufacturing. This product page combines verified Microchip and distributor data, source-backed availability links, practical application guidance, and explicit data-gap markers. It does not infer unverified electrical specifications or present functional comparators as drop-in replacements when pin or peripheral compatibility has not been demonstrated.

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ATTINY40-XU - 8-Bit 12MHz AVR MCU | Microchip Technology
ATTINY40-XU

ATTINY40-XU - 8-Bit 12MHz AVR MCU | Microchip Technology

The Microchip Technology ATTINY40-XU is an 8-bit AVR RISC microcontroller with 12 MHz operation, 4 KB of ISP Flash memory, 256 B of SRAM, and a 20-pin TSSOP package. It is designed for compact embedded control, low-power sensing, and simple actuator or signal-processing systems. An 8-bit AVR microcontroller is a reduced-instruction-computer controller optimized for embedded tasks rather than general-purpose computing. Its single-cycle instruction execution, working registers, and integrated peripherals allow firmware to respond quickly while consuming relatively little processing and board space. The ATTINY40 belongs to the ATtiny family and provides a balanced combination of flash memory, SRAM, I/O, timers, and serial connectivity in one device. Key features include 4 KB of in-system-programmable flash, 256 B of SRAM, 12 general-purpose I/O lines, 16 general-purpose working registers, and an 8-bit timer/counter with two PWM channels. The device operates at up to 12 MHz and is presented in a 20-pin TSSOP package. Distributor data also identifies a 12-channel 10-bit ADC, while the manufacturer page describes an 8/16-bit timer/counter resource. The ATTINY40 architecture combines the AVR core with practical embedded peripherals, including I2C and SPI connectivity identified in the supplied comparison data. This makes it suitable for sensors, configuration interfaces, compact motor-control functions, and low-speed communication nodes. Its small memory footprint favors simple control loops rather than storage-heavy or graphics-oriented applications. Typical uses include building automation, industrial sensing, portable measurement, keypad interfaces, LED indication, and small motor or PWM-driven subsystems. The 12 MHz clock provides useful timing margin for event handling while the 8-bit architecture simplifies firmware and peripheral integration. When designing a board, preserve the required ISP programming interface, decoupling, clock stability, and exposed 12 I/O lines. Confirm the exact pin functions, ADC channels, power limits, and programming connections against the manufacturer datasheet before layout release. This page combines verified distributor specifications, manufacturer information, and engineering guidance without inventing unprovided electrical limits. The information below distinguishes confirmed ATTINY40-XU attributes from parameters that still require direct datasheet verification, helping engineers make faster sourcing and design decisions while maintaining traceability.

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ATTINY40-XUR - 8-Bit 12MHz AVR MCU | Microchip Technology (Tape & Reel)
ATTINY40-XUR

ATTINY40-XUR - 8-Bit 12MHz AVR MCU | Microchip Technology (Tape & Reel)

The Microchip Technology ATTINY40-XUR is an 8-bit AVR RISC microcontroller with 12 MHz operation, 4 KB of ISP Flash memory, 256 B of SRAM, and a 20-pin TSSOP package. It is designed for compact embedded control, low-power sensing, and simple actuator or signal-processing systems. An 8-bit AVR microcontroller is a reduced-instruction-computer controller optimized for embedded tasks rather than general-purpose computing. Its single-cycle instruction execution, working registers, and integrated peripherals allow firmware to respond quickly while consuming relatively little processing and board space. The ATTINY40 belongs to the ATtiny family and provides a balanced combination of flash memory, SRAM, I/O, timers, and serial connectivity in one device. Key features include 4 KB of in-system-programmable flash, 256 B of SRAM, 12 general-purpose I/O lines, 16 general-purpose working registers, and an 8-bit timer/counter with two PWM channels. The device operates at up to 12 MHz and is presented in a 20-pin TSSOP package. Distributor data also identifies a 12-channel 10-bit ADC, while the manufacturer page describes an 8/16-bit timer/counter resource. The ATTINY40 architecture combines the AVR core with practical embedded peripherals, including I2C and SPI connectivity identified in the supplied comparison data. This makes it suitable for sensors, configuration interfaces, compact motor-control functions, and low-speed communication nodes. Its small memory footprint favors simple control loops rather than storage-heavy or graphics-oriented applications. Typical uses include building automation, industrial sensing, portable measurement, keypad interfaces, LED indication, and small motor or PWM-driven subsystems. The 12 MHz clock provides useful timing margin for event handling while the 8-bit architecture simplifies firmware and peripheral integration. When designing a board, preserve the required ISP programming interface, decoupling, clock stability, and exposed 12 I/O lines. Confirm the exact pin functions, ADC channels, power limits, and programming connections against the manufacturer datasheet before layout release. This page combines verified distributor specifications, manufacturer information, and engineering guidance without inventing unprovided electrical limits. The information below distinguishes confirmed ATTINY40-XUR attributes from parameters that still require direct datasheet verification, helping engineers make faster sourcing and design decisions while maintaining traceability.

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ATTINY406-SF - 16MHz 4KB AVR Microcontroller | Microchip
ATTINY406-SF

ATTINY406-SF - 16MHz 4KB AVR Microcontroller | Microchip

The Microchip Technology ATTINY406-SF is an 8-bit AVR tinyAVR functional-safety microcontroller rated for up to 16 MHz, with 4 KB of Flash program memory and 256 bytes of SRAM in a 20-pin SOIC package. The device also provides 128 bytes of EEPROM, 18 I/O pins, and communication peripherals including I2C, SPI, and USART. These characteristics make it suitable for compact industrial, control, sensing, and communication modules where deterministic embedded processing is required in a small surface-mount footprint. A microcontroller is an integrated circuit containing a processor core, program memory, data memory, and peripherals on one semiconductor die. The tinyAVR family combines the general-purpose AVR RISC architecture with event-driven peripherals and low-power sleep capabilities. Within the semiconductor hierarchy, ATTINY406-SF belongs to the TinyAVR 0-series, where its hardware multiplier, analog resources, and event system support efficient control tasks and signal acquisition without requiring a larger processor. Key device features include a 16 MHz maximum operating frequency for the ATTINY406-SF ordering configuration, 4 KB of Flash memory for firmware storage, and 256 bytes of SRAM for working data. The 128-byte EEPROM provides nonvolatile storage for calibration values, configuration data, or counters. An integrated hardware multiplier improves the efficiency of multiply and multiply-accumulate operations, while I2C, SPI, and USART interfaces allow connection to sensors, transceivers, memories, and service ports. The ATTINY406-SF belongs to Microchip's functional-safety-oriented tinyAVR 0-series and is listed by its manufacturer for operation up to 125°C. Its 20-pin SOIC package is larger than QFN options but offers a practical leaded-surface-mount format for assembly and inspection. Typical designs use the microcontroller for supervisory functions, compact sensor nodes, motor or actuator controllers, and low-to-medium-speed communication bridges. Exact voltage limits, converter characteristics, timer channels, and detailed timing parameters should be confirmed against the manufacturer datasheet. For new layouts, place the decoupling network close to the supply pins and route sensitive analog signals away from switching nodes. Confirm oscillator, reset, programming, and exposed-pin requirements in the datasheet pin-description table before release. The 4 KB Flash limit also makes code-size budgeting important when adding communication stacks, safety checks, or field-upgrade features.

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ATTINY406-SN - 8-Bit 20MHz AVR Microcontroller | Microchip Technology
ATTINY406-SN

ATTINY406-SN - 8-Bit 20MHz AVR Microcontroller | Microchip Technology

The Microchip Technology ATTINY406-SN is an 8-bit AVR microcontroller designed for compact embedded control, low-voltage operation, and space-constrained applications. The available verified data confirms the manufacturer and ordering code, while detailed electrical, package, memory, and pricing information was not returned by the source retrieval. The ATTINY406 family is associated with the AVR 8-bit microcontroller architecture, a RISC processor family widely used for embedded control, serial communication, sensing, and actuator monitoring. Its compact form factor and low-power design focus suit battery-powered instruments, industrial automation nodes, consumer accessories, and connected peripheral designs. The ATTINY406-SN belongs to the broader product hierarchy of microcontroller, embedded processor, 8-bit microcontroller, AVR microcontroller, and power-management-aware embedded controller. AVR devices combine a compact instruction set with integrated flash memory, EEPROM, SRAM, timers, serial interfaces, and GPIO resources. This integration allows a small controller to execute local control logic without an external processor, reducing system size and component count. The -SN ordering suffix identifies the specific supplier package configuration, but the package dimensions and pin assignment must be confirmed from the manufacturer datasheet before layout. Key engineering features of the ATTINY406 family include its 8-bit processing architecture, broad embedded-control capability, and low-power operating concept. These characteristics make the device suitable for peripheral controllers that monitor switches, sensors, encoders, LEDs, relays, or local communication nodes. Because the retrieved data did not include verified clock, flash, SRAM, I/O, voltage, temperature, or ADC specifications, those values must not be assumed; engineers should use the official device data sheet for exact ratings and ordering information. Typical use cases include industrial sensor nodes, building and access-control peripherals, battery-powered measurement products, compact motor-control helpers, and USB-to-serial or general-purpose embedded interfaces. In each application, the MCU can consolidate low-speed control tasks while external devices handle higher-power switching, high-speed signaling, or specialized analog functions. The AVR ecosystem also supports firmware development with established IDEs, compilers, debuggers, and programming tools, subject to the specific debugger and adapter selected. Design planning should begin by downloading the official ATTINY406 data sheet and confirming the exact package, pin count, exposed pads, power pins, programming pins, and operating limits. Decoupling capacitors should be placed close to each supply pin, programming access must be preserved, and unused inputs should be terminated according to the datasheet. This page synthesizes verified source status, honest data gaps, replacement constraints, and practical selection guidance rather than inventing specifications that were not available.

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ATTINY412-SSF - 8-bit AVR tinyAVR 1 MCU, 4KB Flash, 8-SOIC | Microchip
ATTINY412-SSF

ATTINY412-SSF - 8-bit AVR tinyAVR 1 MCU, 4KB Flash, 8-SOIC | Microchip

The Microchip Technology ATTINY412-SSF is an 8-bit AVR RISC microcontroller from the tinyAVR 1-series, featuring 4KB of Flash, 256 bytes of SRAM, and 128 bytes of EEPROM in an 8-pin SOIC package, operating up to 20 MHz with a 2.7V to 5.5V supply. It is rated for the industrial -40C to +125C temperature range and includes a 10-bit ADC, hardware multiplier, Event System, and SleepWalking peripherals. Functional Safety (FuSa) variants are available for safety-critical designs requiring IEC 61508 SIL compliance. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), non-volatile storage (EEPROM), and configurable peripherals such as timers, ADC, and communication controllers on one die. tinyAVR 1-series devices occupy the entry-level position in Microchip's 8-bit AVR hierarchy: tinyAVR -> megaAVR -> AVR -> Microchip 8-bit MCU family. They are optimized for cost-sensitive, low-pin-count, low-power embedded designs that need deterministic behavior and Core Independent Peripherals (CIPs). The ATTINY412 differentiates itself from older tinyAVR generations by using the latest 8-bit AVR core with a hardware multiplier (single-cycle), 6-event System, 4-channel 10-bit ADC with up to 12-bit resolution via oversampling, and Configurable Custom Logic (CCL) LUTs. These features enable the MCU to handle sensor conditioning, signal routing, and glue logic autonomously, offloading the CPU. Functional Safety (FuSa) variants add documentation packages for IEC 61508 SIL 2/3 systems. Architecturally, the device uses a Harvard-style 8-bit RISC core with a 2-stage pipeline, executes most instructions in one cycle, and integrates a bandgap reference, brown-out detector, and 20 MHz internal oscillator. The picoPower technology minimizes active and sleep currents. Peripherals are mapped via the event system, enabling deterministic inter-peripheral signalling without CPU intervention. Typical applications include IoT sensor nodes, LED lighting controllers, capacitive touch interfaces, low-end BLDC motor commutation, battery-powered wearables, and industrial sensor conditioning. The wide 2.7V-5.5V supply range allows direct operation from a single Li-ion cell or a 5V rail. When designing with this part, reserve one pin for UPDI programming (shared with a GPIO), budget board space for a decoupling capacitor on VDD and a 0.1uF on AVDD if analog is used, and validate toolchain compatibility with Microchip Studio or MPLAB X IDE. This page synthesizes distributor pricing, drop-in alternatives from the same tinyAVR 1-series, and practical application context not contained in the manufacturer datasheet.

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ATTINY412-SSFR - 8-bit AVR tinyAVR 1 MCU, 4KB Flash, SOIC-8 | Microchip
ATTINY412-SSFR

ATTINY412-SSFR - 8-bit AVR tinyAVR 1 MCU, 4KB Flash, SOIC-8 | Microchip

The Microchip Technology ATTINY412-SSFR is an 8-bit AVR tinyAVR 1-series microcontroller (Functional Safety, FuSa) running at up to 20 MHz with 4 KB Flash, 256 bytes SRAM, and 128 bytes EEPROMin an 8-pin SOIC-8 package.It delivers 16 MIPS throughput from the AVR RISC core with hardware multiplier, integrates a 6-channel 10-bit ADC, an 8-bit DAC, two 16-bit timers, and one 12-bit timer, plus configurable custom logic and the Event System / SleepWalking peripheral set. An 8-bit AVR microcontroller is aRISC-architecture CPU that executes one instruction per clock cycle, enabling deterministic real-time response with very low active power. The tinyAVR 1-series sits insideMicrochip's 8-bit AVR portfolio below the megaAVR and XMega families, optimized for cost- and power-constrained embedded designs that need on-chip analog and event-driven peripherals.Positioned as a drop-in successor to legacy ATtiny25/45/85 partson SOIC-8 footprints, the ATtiny412 adds modern peripherals (Event System, configurable custom logic) while preserving the AVR toolchain (GCC, Atmel Studio / Microchip Studio, MPLAB X). Key differentiating specifications include 4 KB self-programmable Flash, 256 B SRAM, 128 B EEPROM, six ADC channels with 10-bit resolution, a single-channel 8-bit DAC, two 16-bit Timer/Counter Type B instances plus one 12-bit Timer/Counter Type D, and the Peripheral Touch Controller (PTC) supporting touch buttons via the slider/wheel QTouch library. A 10-pin UPDI programming/debug interface replaces the legacy ISP header, and the device operates from 1.8 V to 5.5 V with picoPower sleep modes down to sub-microamp current. The architecture combines the deterministic AVR 8-bit pipeline with a hardware multiplierfor faster integer math, plus the Event System that lets peripherals trigger each other without CPU intervention - critical for SleepWalking low-power designs. The integrated 8-bit DAC and 10-bit ADC remove the need for external analog components in closed-loop and sensor-interface designs. Typical applications include capacitive-touch button interfaces, IoT sensor nodes, low-power wearables, LED lighting controllers, and small appliance user-interface boards where its SOIC-8 footprint, on-chip analog, and picoPower modes are decisive advantages. The Functional Safety (FuSa) variant is suited to designs targeting IEC 60730 class B appliance-safety requirements. When designing with the ATTINY412-SSFR, route the UPDI programming pin to a dedicated test pad or 1x3 header for in-system programming; the SOIC-8 does not expose the legacy 6-pin ISP interface. Decouple VDD with a 100 nF X7R ceramic placed within2 mm of the supply pin, and leave PB0/PB1 free for the default UPDI/XTAL functions unless re-mapped via the fuse settings. This page synthesizesdistributor pricing, same-brand and cross-brand drop-in alternatives, andpractical design notes thatcomplementthemanufacturer datasheet (DS40001911B).

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ATTINY412-SSNR - 8-bit AVR tinyAVR 1 MCU 20MHz 4KB Flash SOIC-8 | Microchip
ATTINY412-SSNR

ATTINY412-SSNR - 8-bit AVR tinyAVR 1 MCU 20MHz 4KB Flash SOIC-8 | Microchip

The Microchip Technology ATTINY412-SSNR is an 8-bit AVR tinyAVR 1-series microcontroller with hardware multiplier, running at up to 20 MHz with 4 KB Flash, 256 bytes SRAM, and 128 bytes EEPROM, housed in an 8-pin SOIC package. Functional Safety (FuSa) ready and built on picoPower technology, it integrates a 10-bit ADC, a configurable custom logic block, and the Event System with SleepWalking for interrupt-driven, low-energy peripheral operation. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, and integrated peripherals such as ADC, timers, and communication interfaces. The AVR 8-bit RISC architecture executes one instruction per clock cycle, giving the tinyAVR 1-series deterministic throughput at modest clock rates. Within the broader taxonomy, the ATTINY412 sits at the bottom of Microchip's tinyAVR family — a sub-category of 8-bit microcontrollers — positioned below the megaAVR series and far below 32-bit ARM Cortex-M0+ devices such as the SAMD21 in compute, but with a substantially smaller footprint and lower price point. Key differentiating specifications include 4 KB self-programmable Flash, 256-byte SRAM, 128-byte EEPROM, 20 MHz maximum CPU clock, and an operating voltage range of 1.8V to 5.5V. The device exposes 6 GPIO pins (6 usable I/O on the 8-pin SOIC), supports up to 6 PWM channels via Timer/Counter A, integrates a 10-bit 115 ksps ADC with up to 6 analog channels, and offers a peripheral touch controller (PTC) for buttons and sliders. Sleep current is in the single-digit microampere range, making it suitable for battery-powered and energy-harvesting applications. The architecture combines an AVR 8-bit CPU core with a hardware multiplier for fast 16-bit math, a deterministic interrupt controller, and the Event System — a hardware interconnect that lets peripherals trigger each other without CPU intervention. This core-independent peripheral (CIP) design enables SleepWalking, in which a peripheral can wake the CPU only when a configured event occurs, dramatically reducing average current draw. Typical applications include low-power IoT sensor nodes, consumer electronics human-machine interfaces (HMI), battery management, LED driving and lighting control, and compact motor or fan control. The PTC and high-resolution PWM make it well-suited to capacitive-touch user interfaces and BLDC or DC motor commutation. When designing with this part, observe the absolute maximum VDD of 6V and configure the unused pins as outputs with low state to minimize leakage. Migration within the tinyAVR 1-series is straightforward: ATTINY212-SSN shares the same pinout with 2 KB Flash and 128-byte SRAM, while ATTINY414 adds 2 KB Flash. Choose by memory headroom rather than peripheral set. This document synthesizes distributor pricing, parametric alternatives, and practical design guidance not found in the manufacturer datasheet alone — including cross-brand equivalents sourced from live distributor data and application-specific recommended companion parts.

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ATTINY416-SN - 20MHz 8-bit AVR MCU | Microchip Technology
ATTINY416-SN

ATTINY416-SN - 20MHz 8-bit AVR MCU | Microchip Technology

The Microchip Technology ATTINY416-SN is an 8-bit tinyAVR microcontroller with a maximum operating frequency of 20 MHz, 4 KB of in-system programmable Flash memory, 256 bytes of SRAM, and 128 bytes of EEPROM in a 20-pin SOIC package. Its hardware multiplier supports efficient 8-bit and 16-bit multiplication, while the compact architecture integrates digital control, accurate analog functions, communication peripherals, an Event System, and SleepWalking capability into a single device. A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals on one chip. The tinyAVR family belongs to the hierarchy of 8-bit AVR microcontrollers, embedded controllers, and semiconductor devices. Instead of requiring a separate processor, memory, and interface circuitry, the ATTINY416-SN provides a compact control platform for compact industrial, consumer, communication, and automation products. The device runs AVR instructions at up to 20 MHz and organizes its 4 KB program Flash as 4K by 16 bits because AVR instructions are 16 or 32 bits wide. Its 256-byte SRAM provides working memory, while 128 bytes of nonvolatile EEPROM can retain small configuration or calibration values. The integrated analog features, Event System, and SleepWalking peripherals extend its usefulness beyond simple GPIO control while preserving a low-power design profile. The ATTINY416-SN is suitable for designs using I2C, SPI, or USART connectivity, as identified in the manufacturer product information. These interfaces allow the microcontroller to connect sensors, serial memories, converters, communications modules, and other embedded peripherals without requiring discrete interface controllers. The Event System can route peripheral events directly between hardware functions, reducing CPU involvement in time-sensitive tasks, while SleepWalking allows selected peripherals to operate while the CPU is asleep. Typical applications include compact sensor controllers, industrial condition-monitoring nodes, building-automation endpoints, low-power communication modules, actuator-control boards, and small consumer products. The 20-pin SOIC package supports conventional surface-mount assembly, while the combination of 20 MHz processing, EEPROM, and mixed serial interfaces provides a practical balance of capability, size, and design complexity. For new PCB layouts, confirm the exact pin assignments and alternate-function capabilities in the Microchip datasheet before routing pins. Keep programming access, decoupling, power, ground, and communication signals routed according to the device's recommended layout, and validate clock, reset, and sleep-mode behavior across the complete operating temperature range. This page combines the ATTINY416-SN specifications with package guidance, application-focused engineering context, datasheet links, and same-package replacement analysis. It is designed to help engineers identify the correct memory configuration, package, programming interface, and device variant before beginning layout or firmware development.

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ATTINY417-MN - 20MHz 4KB AVR MCU | Microchip Technology
ATTINY417-MN

ATTINY417-MN - 20MHz 4KB AVR MCU | Microchip Technology

The Microchip Technology ATTINY417-MN is an 8-bit AVR tinyAVR microcontroller with a 20 MHz maximum clock frequency, 4 KB of Flash program memory, and a 24-QFN 4 x 4 mm package. It also provides 256 bytes of SRAM, 128 bytes of EEPROM, and a hardware-multiplier-equipped AVR processor for compact embedded-control designs. A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The ATTINY417 belongs to the TinyAVR family, which sits within the broader hierarchy of 8-bit AVR microcontrollers, embedded controllers, and semiconductor components. This combination makes the device useful for small control systems that need programmable logic, serial communication, analog measurement, and compact board area without a larger application processor. The ATTINY417's headline features include its 20 MHz operating speed, 4 KB Flash memory, 256 B SRAM, and 128 B EEPROM. The processor includes a hardware multiplier, while the device uses Microchip's Core Independent Peripherals architecture. Its 24-QFN 4 x 4 mm package is intended for space-constrained surface-mount assemblies where a compact land pattern is important. The 4.5 V to 5.5 V operating-supply range makes the ATTINY417 suitable for 5 V embedded systems. The manufacturer lists the ATTINY417-MN as an industrial-temperature variant with an indicated maximum rating of 105°C. The part identifier appears in a 24-QFN 4 x 4 mm package configuration and is associated with Functional Safety microcontroller terminology in distributor technical listings. Typical applications include compact industrial controllers, building and access-control modules, sensor-hub boards, communication equipment, LED-control systems, and compact consumer appliances. In each case, the MCU can execute firmware close to the sensed or controlled mechanism, reducing system complexity and keeping the design within a small, low-power embedded platform. Designers should assign every power pin and signal connection from the package pin-description table, preserve the recommended decoupling arrangement, and confirm operating voltage, clock configuration, and peripheral assignments in the manufacturer datasheet. PCB planning must accommodate the 24-QFN 4 x 4 mm footprint, exposed thermal pad requirements, and the selected programming and debugging interface. This product record combines the manufacturer specifications, exact package identification, sourcing context, engineering-use guidance, and selection criteria for ATTINY417-MN. It is intended to help engineers evaluate the device quickly while retaining the datasheet as the controlling reference for electrical limits, pin definitions, programming, and qualification requirements.

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ATTINY424-XF - 20MHz 4KB AVR MCU | Microchip Technology
ATTINY424-XF

ATTINY424-XF - 20MHz 4KB AVR MCU | Microchip Technology

Microchip Technology ATTINY424-XF is an 8-bit AVR microcontroller with a hardware multiplier, a maximum clock frequency of 20 MHz, 4 KB of Flash program memory, 512 bytes of SRAM, and 128 bytes of EEPROM in a 14-pin TSSOP package. The device is suited to compact embedded-control designs requiring efficient code execution, mixed-signal measurement, and a small PCB footprint. A microcontroller is an integrated circuit that executes firmware, reads inputs, controls outputs, and manages system timing within one device. The ATTINY424 belongs to Microchip's tinyAVR 2 family, combining an 8-bit AVR CPU with embedded nonvolatile memory, SRAM, and Core Independent Peripherals. This hierarchy places it between simple logic controllers and larger application-specific microcontrollers. The ATTINY424-XF provides 9-channel, 12-bit analog-to-digital conversion, allowing one device to acquire several analog inputs without requiring an external ADC. Its 20 MHz maximum operating frequency supports deterministic firmware execution, while 4 KB of Flash provides 4096 bytes for program storage. The 512-byte SRAM supports working variables and stack operations, and the 128-byte EEPROM provides nonvolatile data storage for configuration values or counters. The 14-pin TSSOP package limits board area while retaining separate GPIO connections and analog inputs. The -XF ordering identifies the TSSOP package configuration in the relevant Microchip ordering system. Because this device combines an AVR CPU, ADC, EEPROM, and event-oriented peripherals in one compact package, it can reduce external component count and simplify firmware architecture compared with a discrete processor-and-converter design. Typical applications include compact industrial controllers, digital thermometers, sensor-conditioning nodes, LED status panels, small motor-control modules, and low-cost consumer-control boards. The 12-bit ADC is particularly useful when the application requires more resolution than a basic digital threshold input but does not justify a larger mixed-signal microcontroller. The primary design consideration is firmware capacity. A 4 KB Flash device is appropriate for compact control tasks, but code growth should be checked against the 4096-byte program-memory limit. Use the pin-description table in the manufacturer datasheet when assigning PCB tracks, and preserve the device's specified decoupling and programming connections around the TSSOP-14 footprint. This product summary combines the manufacturer family specifications, orderable-part information, and practical implementation guidance. It adds application context, interface considerations, and same-family replacement guidance to help engineers evaluate the ATTINY424-XF before schematic capture or PCB layout.

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ATTINY424-XU - 20MHz AVR Microcontroller | Microchip Technology
ATTINY424-XU

ATTINY424-XU - 20MHz AVR Microcontroller | Microchip Technology

The Microchip Technology ATTINY424-XU is an 8-bit AVR tinyAVR 2-series microcontroller with a maximum clock frequency of 20 MHz, 4 KB of Flash program memory, 512 bytes of SRAM, and 128 bytes of EEPROM in a 14-pin TSSOP package. It combines the AVR CPU with a hardware multiplier and core-independent peripherals for compact embedded-control designs. A microcontroller is a programmable semiconductor that integrates a CPU, memory, and peripherals on one device. The ATTINY424-XU belongs to the hierarchy of microcontrollers, embedded processors, and semiconductors. Its small memory footprint and 14-pin package make it suitable for compact control, sensing, and communication modules where board area and energy efficiency are important constraints. The device provides 4 KB of in-system programmable Flash organized as 4K by 16-bit pages, together with 512 bytes of SRAM and 128 bytes of EEPROM. The AVR CPU supports 16-bit and 32-bit instructions and executes at up to 20 MHz. Core-independent peripherals reduce interrupt overhead and allow timing, serial communication, and other functions to operate with limited CPU involvement. The ATTINY424 family also includes devices with 8 KB of Flash, providing a common platform for applications that require more program storage. The ATTINY424-XU is specifically identified as a 14-pin TSSOP industrial-temperature device rated to 85°C. Its compact package supports conventional surface-mount assembly while exposing the mixed-signal and digital resources required by embedded systems. Typical uses include industrial control modules, compact sensor nodes, LED-control circuits, small motor controllers, and communication equipment. A design can use the 20 MHz clock for responsive control logic, utilize Flash for firmware, and place frequently changed configuration data in EEPROM. Serial-interface and timing peripherals can reduce firmware complexity when their core-independent functions match the application. PCB design should preserve short return paths for digital and analog signals, place decoupling capacitors close to the supply pins, and route sensitive inputs away from fast-switching nodes. Designers should also verify the exact peripheral multiplexing and pin functions in the manufacturer pin-description table before assigning external circuitry. The 14-pin TSSOP footprint requires careful solder-paste and reflow design to achieve reliable fine-pitch joints. This product page combines the manufacturer device information, exact-orderable-part identification, package details, and practical engineering guidance. It also distinguishes genuine drop-in replacements from related tinyAVR devices that use different packages or memory configurations, helping engineers make a defensible sourcing or replacement decision without assuming compatibility.

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ATTINY426-MF - 20MHz 4KB Flash AVR Microcontroller | Microchip
ATTINY426-MF

ATTINY426-MF - 20MHz 4KB Flash AVR Microcontroller | Microchip

Microchip Technology ATTINY426-MF is an 8-bit tinyAVR 2 family microcontroller with an AVR CPU and hardware multiplier, operating at up to 20 MHz, with 4 KB Flash memory, 512 bytes SRAM, and 128 bytes EEPROM in a 20-pin VQFN package measuring 3 x 3 mm. The -MF ordering code identifies the tray-packed industrial-temperature variant, which operates from -40°C to +125°C and supports 2.5 V, 3.3 V, and 5 V supply levels. A microcontroller is a programmable integrated circuit containing a processor core, memory, peripherals, and I/O circuitry on one semiconductor device. The ATTINY426 belongs to the tinyAVR 2 family, a compact branch of the AVR 8-bit RISC microcontroller portfolio. This device hierarchy combines a small instruction set, event-control peripherals, and flexible pin multiplexing in a low-pin-count package suitable for embedded control systems. Key features include 20 MHz maximum CPU operation, 4 KB of Flash for program storage, 512 bytes of SRAM for working variables, and 128 bytes of EEPROM for nonvolatile data. The device also provides I2C, SPI, and UART/USART connectivity, enabling communication with sensors, serial memories, transceivers, and host systems. Its industrial temperature range supports demanding industrial control, sensor, and embedded interface applications. The AVR processor architecture provides an 8-bit RISC execution model with a hardware multiplier for efficient arithmetic operations. Its 4 KB program memory is sufficient for compact control logic, protocol handlers, state machines, and mixed analog-to-digital control functions. The 20-pin VQFN package also offers a practical balance between functional connectivity and board-space savings, although its exposed-pad construction requires careful PCB layout and assembly planning. Typical uses include industrial sensor nodes, compact motor and actuator controllers, serial protocol bridges, battery-powered monitoring equipment, and low-cost embedded automation modules. The device is particularly suitable when a design needs more general-purpose performance than a simple logic IC while retaining a compact footprint, low pin count, and familiar AVR software toolchain. PCB implementation should follow the exact land pattern, exposed-pad, and solder-reflow requirements in the Microchip package drawing. Firmware development should preserve sufficient Flash, SRAM, and EEPROM headroom for interrupts, stack use, bootloader requirements, and field updates rather than treating the memory ratings as the entire application capacity. This page consolidates manufacturer specifications, package information, sourcing details, application guidance, and defensible drop-in comparison points. It also distinguishes a genuine pin-compatible replacement from parts that merely belong to the broader microcontroller category, helping engineers make a footprint-safe sourcing decision.

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ATTINY426-MU - 20MHz 4KB 8-Bit Microcontroller | Microchip
ATTINY426-MU

ATTINY426-MU - 20MHz 4KB 8-Bit Microcontroller | Microchip

The Microchip Technology ATTINY426-MU is an 8-bit AVR tinyAVR 2-series microcontroller operating at up to 20 MHz, with 4 KB of Flash memory, 512 bytes of SRAM, and 128 bytes of EEPROM in a 20-pin VQFN 3 x 3 mm package. It uses the AVR CPU with a hardware multiplier and is intended for compact embedded-control designs requiring low pin count, deterministic control, and flexible serial communications. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, and peripherals onto one device. The ATTINY426 belongs to the tinyAVR 2 family, a low-power 8-bit microcontroller line commonly used for local control, sensing, actuator management, and small consumer or industrial products. Its 20-pin VQFN package supports space-constrained boards while exposing GPIO and communication resources needed for embedded subsystems. The device provides 4 KB of Flash for program storage, 512 bytes of SRAM for working data, and 128 bytes of EEPROM for nonvolatile parameter storage. The AVR CPU includes a hardware multiplier and operates at speeds up to 20 MHz. According to the Microchip ATtiny426 product page, the ATtiny426 family is available in 20-pin VQFN 3 x 3 mm, SSOP, and SOIC packages; the -MU ordering code identifies the 20-pin VQFN configuration. The tinyAVR 2 architecture emphasizes efficient event handling, configurable peripherals, and low-power operation. These characteristics make the ATTINY426-MU suitable for consumer appliances, building controls, sensor nodes, lighting systems, and compact motor-control or interface modules where a small MCU with integrated memories is preferable to a larger general-purpose processor. Typical designs use the microcontroller for state sequencing, digital input conditioning, sensor acquisition, and driving indicators or small actuators. Serial interfaces allow connection to sensors, memory, or host equipment, while GPIO pins support switches, alarms, and discrete control outputs. Designers should confirm clock, peripheral, and pin assignments in the ATtiny424/426/427/824/826/827 datasheet before finalizing the PCB. For low-power products, select the appropriate clock and sleep configuration, disable unused peripherals, and size external decoupling capacitors according to the circuit guidelines in the manufacturer datasheet. The small VQFN land pattern also requires careful PCB layout, assembly-process capability, and thermal review; adequate exposed-pad soldering and copper connectivity are important for reliable production performance. This product summary combines the exact ATTINY426-MU orderable configuration with the ATtiny426 family architecture, practical application guidance, package considerations, and sourcing information. It is intended to help engineers quickly assess whether the 20 MHz AVR core, 4 KB Flash footprint, and 3 x 3 mm VQFN package fit a specific embedded-control design.

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ATTINY426-SU - 20MHz tinyAVR 2 MCU, 4KB Flash | Microchip
ATTINY426-SU

ATTINY426-SU - 20MHz tinyAVR 2 MCU, 4KB Flash | Microchip

The Microchip Technology ATTINY426-SU is an 8-bit tinyAVR 2 microcontroller with a 20 MHz maximum clock, 4 KB of Flash program memory, 512 bytes of SRAM, and 128 bytes of EEPROM in a 20-pin SOIC package. It uses an AVR CPU with a hardware multiplier and supports operation from 2.5 V, 3.3 V, or 5 V, making it suitable for compact embedded-control systems that require low power consumption and deterministic peripheral integration. A microcontroller is a semiconductor that combines a CPU, nonvolatile program memory, working memory, and peripherals on one integrated circuit. The ATTINY426 belongs to the tinyAVR 2 family, which sits within Microchip's AVR 8-bit architecture. Compared with larger application-specific processors, this device provides a compact platform for reading sensors, controlling actuators, sequencing operations, and communicating through serial interfaces while conserving board area and system power. The device combines 4 KB of Flash for firmware, 512 bytes of SRAM for working data, and 128 bytes of EEPROM for nonvolatile parameter storage. Its maximum 20 MHz operating frequency supports faster control-loop execution than lower-frequency microcontrollers, while the hardware multiplier accelerates multiply operations. The 2.5 V, 3.3 V, and 5 V operating options allow the same device family to address both industrial and low-voltage consumer equipment. The ATTINY426 family uses Microchip's flexible, low-power tinyAVR 2 architecture and includes an Event System according to the family datasheet. The architecture is intended for embedded designs that require event-driven control, compact timing resources, and a balance between processing throughput and power efficiency. The SOIC package also offers a mechanically accessible alternative to very-small VQFN and SSOP options when inspection or hand assembly is important. Typical applications include industrial control modules, building-automation endpoints, compact sensor-hub controllers, LED lighting controllers, motor-control auxiliaries, and low-power IoT nodes. Its combination of serial communications, EEPROM, and moderate SRAM is especially useful in compact products that must retain calibration values or configuration information through a power interruption. PCB implementation should preserve short return paths for digital signals, provide appropriate local decoupling at the supply pins, and route sensitive analog or communications interfaces away from high-current switching nodes. Firmware should also remain within the 4 KB Flash and 512-byte SRAM limits, with interrupt service routines and stack use checked during resource planning. This page combines the manufacturer's core electrical and memory specifications with practical application guidance, package details, datasheet references, and design considerations. It focuses on engineering decisions that help engineers assess whether the ATTINY426-SU provides enough performance, memory, and peripheral capability without moving to a larger microcontroller architecture.

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ATTINY426-XF - 20MHz 4KB AVR MCU | Microchip Technology
ATTINY426-XF

ATTINY426-XF - 20MHz 4KB AVR MCU | Microchip Technology

Microchip Technology ATTINY426-XF is an 8-bit tinyAVR 2 microcontroller with an AVR CPU and hardware multiplier, operating up to 20 MHz, with 4 KB Flash memory, 512 bytes SRAM, and 128 bytes EEPROM in a 20-pin SSOP package. The device combines a compact general-purpose control architecture with event systems and low-power design options for embedded control, industrial automation, consumer equipment, and connected products. A microcontroller is a compact semiconductor that integrates a processor core, program memory, data memory, and peripherals such as timers, serial interfaces, and input/output ports into one device. The tinyAVR 2 family belongs to the broader AVR microcontroller hierarchy, combining an 8-bit RISC architecture with event-driven peripherals and flexible low-power operation. This makes the family suitable for systems that need deterministic peripheral handling without the cost and complexity of a larger general-purpose processor. The ATTINY426 provides 4 KB of Flash for firmware, 512 bytes of SRAM for working data, and 128 bytes of nonvolatile EEPROM for configuration or retained parameters. Its AVR CPU includes a hardware multiplier and can run at up to 20 MHz. The manufacturer family documentation also identifies flexible low-power architecture, an Event System, and pin-count options ranging from 14 to 24 pins for related family members. The ATTINY426-XF is specified in a 20-pin SSOP package, making it suitable for compact PCB layouts where gull-wing leads are easier to inspect and assemble than fine-pitch QFN leads. Its 8-bit architecture is appropriate for supervisory functions, button and menu interfaces, sensor conditioning, actuator timing, communications, and embedded control loops. Compared with larger MCUs, the device limits application complexity while providing enough memory and processing speed for compact control tasks. Typical uses include industrial sensor modules, motor-control helpers, power-supply controllers, building automation, appliance control, and low-cost connected devices. Designers should confirm peripheral assignments, clock configuration, pin multiplexing, and programming requirements against the manufacturer data sheet before committing a footprint. The SSOP outline also provides adequate lead pitch for conventional assembly methods, although exposed-pad thermal considerations do not apply to this package. When designing around the ATTINY426-XF, treat power consumption and clock choice as part of the functional specification. A lower clock rate can reduce dynamic power consumption when the application does not require 20 MHz operation, while sleep modes and event-driven peripherals can reduce activity between external events. Decoupling capacitors should be placed directly beside the supply pins, and unused inputs should be configured to avoid floating states. This product page combines the manufacturer family specification, package and memory details, source citations, replacement guidance, and practical design considerations. It also distinguishes same-family alternatives from a true cross-brand replacement, helping engineers evaluate MCU migration requirements without overlooking pin compatibility, firmware differences, peripheral assignments, or qualification constraints.

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