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ATMEGA88V-10AU - 8KB AVR 8-Bit MCU 10MHz | Microchip | TQFP-32
ATMEGA88V-10AU

ATMEGA88V-10AU - 8KB AVR 8-Bit MCU 10MHz | Microchip | TQFP-32

The Microchip Technology ATMEGA88V-10AU is an 8-bit AVR RISC microcontroller with 8 KB of in-system programmable Flash, 1 KB SRAM, and 512 B EEPROM, running at up to 10 MHz and housed in a 32-pin TQFP (7x7 mm) package. It operates from 1.8 V to 5.5 V and provides 23 general-purpose I/O lines. An AVR microcontroller is a Harvard-architecture 8-bit RISC device that executes most instructions in a single clock cycle, delivering up to 1 MIPS per MHz. Within the product taxonomy it sits under microcontrollers (MCU) -> integrated circuits -> semiconductors, and the ATmega family is the classic general-purpose branch of the AVR line, positioned between the tinyAVR and megaAVR performance tiers. Key features include 8 KB ISP Flash with read-while-write, 512 B EEPROM, 1 KB SRAM, 23 GPIO lines, three flexible timer/counters with compare modes, an 8-channel 10-bit ADC, a programmable USART, a byte-oriented Two-Wire Serial Interface (I2C), an SPI port, and debugWIRE on-chip debug. The picoPower design keeps active current low, making the device suitable for battery-powered and always-on embedded control. The ATmega88V is fabricated in Microchip's low-power CMOS process and uses the enhanced AVR RISC core with 32 general-purpose working registers. Because the core is clocked directly from the system clock with no divider penalty, throughput scales linearly with frequency, and the wide 1.8 V to 5.5 V supply range allows direct operation from single Li-Ion cells or regulated 3.3 V and 5 V rails without level shifting. Typical applications include industrial sensor nodes, consumer appliance control boards, battery-powered data loggers, motor and relay control, and legacy ATmega8/ATmega48 designs being migrated to a pin-compatible modern device. The 32-TQFP footprint is shared across the ATmega48/88/168 family, so firmware and layout can be reused across memory densities. When designing with this device, decouple every VCC/AVCC pin with a 100 nF ceramic capacitor placed within a few millimeters of the pin, and keep the AREF pin bypassed when the ADC is used. The 10 MHz maximum frequency at 1.8 V-5.5 V means the part is not a drop-in for 16 MHz or 20 MHz ATmega88 variants, which require at least 2.7 V or 4.5 V respectively. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for procurement and layout decisions.

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ATMEGA88V-10AUR - 8KB AVR MCU 10MHz 32-TQFP | Microchip
ATMEGA88V-10AUR

ATMEGA88V-10AUR - 8KB AVR MCU 10MHz 32-TQFP | Microchip

The Microchip Technology ATMEGA88V-10AUR is a picoPower 8-bit AVR RISC microcontroller with 8KB (4K x 16) ISP Flash memory, 1KB SRAM, 512B EEPROM, 23 general-purpose I/O lines and a 10 MHz maximum clock, housed in a 32-pin TQFP (7 x 7 mm, 0.8 mm pitch) package supplied on tape and reel for industrial-temperature operation. A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory and peripherals on one die, sitting at the lowest level of the embedded-system hierarchy: microcontroller -> embedded processor -> digital IC -> semiconductor. The AVR ATmega family is an 8-bit reduced-instruction-set (RISC) architecture executing most of its 130 instructions in a single clock cycle, delivering throughput close to 1 MIPS per MHz. Key features include the picoPower technology set for low active and sleep currents, 8KB of self-programmable Flash with read-while-write support, three flexible timer/counters (two 8-bit and one 16-bit), an 8-channel 10-bit ADC, and debugWIRE on-chip debugging using only the reset line. The V speed grade limits clocking to 10 MHz but permits the full 2.7 V to 5.5 V supply range, unlike the 20 MHz ATmega88A variants. Architecturally, the device pairs 32 general-purpose working registers directly with the ALU, avoiding accumulator bottlenecks. In-system serial programming (ICSP) over SPI allows firmware updates after board assembly, and the boot-loader-capable Flash enables field upgrades. Typical applications include battery-powered industrial sensors, HVAC and appliance control boards, and consumer or instrumentation products where 5 V operation and wide supply tolerance are required. Design consideration: keep the 10 MHz speed grade in mind when porting code written for 20 MHz ATmega88A parts; loop timing, UART baud tables and PWM frequencies scale directly with F_CPU. This page adds value beyond the datasheet by consolidating distributor pricing, drop-in same-package alternatives, and practical cross-reference guidance in one citable source.

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ATMEGA88V-10MI - 8KB Flash AVR MCU 10MHz QFN-32 | Microchip
ATMEGA88V-10MI

ATMEGA88V-10MI - 8KB Flash AVR MCU 10MHz QFN-32 | Microchip

The Microchip Technology (Atmel) ATMEGA88V-10MI is a low-power 8-bit AVR RISC microcontroller with 8KB of In-System Programmable Flash, 1KB SRAM, 512B EEPROM, and 23 general-purpose I/O lines, clocked at up to 10MHz and housed in a 32-pad VQFN (5x5 mm) exposed-pad package with industrial -40C to +85C temperature range. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers, ADCs, and serial interfaces on one die. In the power-management hierarchy of embedded systems, the MCU is the master controller that supervises sensors, actuators, and communication links, making it the central component of virtually every embedded design. Key features include the AVR advanced RISC architecture with 131 mostly single-cycle instructions delivering up to 1 MIPS per MHz (10 MIPS at 10MHz), operation from 1.8V to 5.5V for battery-friendly designs, an 8-channel 10-bit ADC, a byte-oriented Two-Wire Interface (I2C-compatible), a serial USART, and SPI. DebugWIRE on-chip debugging simplifies development with only a single-pin interface. The ATmega88V uses a Harvard-architecture pipeline with 32 general-purpose working registers directly connected to the ALU, allowing two independent register accesses in one instruction cycle. Read-while-write Flash supports self-programming for bootloaders. Three flexible timer/counters (two 8-bit, one 16-bit) with compare and PWM modes drive motor control, lighting, and timing tasks. Typical applications include battery-powered sensors and metering, industrial control and automation nodes, HVAC and appliance control, and consumer electronics such as remote controls and lighting. The wide 1.8-5.5V supply range and low active/Power-Down current fit energy-constrained designs. Design consideration: place 100nF decoupling capacitors close to both VCC/GND pad pairs on the QFN exposed pad, and solder the exposed die pad to ground for thermal and signal integrity. This page adds distributor pricing tiers, same-footprint drop-in alternatives, pinout detail, and practical design notes not consolidated in the manufacturer datasheet.

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ATMEGA88V-10MJ - 8-Bit AVR MCU, 8KB Flash, 1.8-5.5V | Microchip
ATMEGA88V-10MJ

ATMEGA88V-10MJ - 8-Bit AVR MCU, 8KB Flash, 1.8-5.5V | Microchip

The Microchip Technology ATMEGA88V-10MJ is an 8-bit AVR RISC microcontroller with 8KB of in-system programmable Flash memory, 1KB SRAM, 512B EEPROM, and 23 general-purpose I/O lines, operating from 1.8V to 5.5V at up to 10MHz in a 32-pin VQFN/MLF package. An 8-bit microcontroller (MCU) is a single integrated circuit that contains a processor core, memory, and programmable input/output peripherals on one chip. Within the power-management-and-control hierarchy of embedded systems, the microcontroller sits at the application layer, executing firmware that sequences sensors, actuators, and communication interfaces. The AVR architecture used in the ATmega88 family executes most of its 131 instructions in a single clock cycle, delivering throughput close to 1 MIPS per MHz. Key features of the ATMEGA88V-10MJ include self-programming Flash with read-while-write capability, an 8-channel 10-bit ADC, three flexible timer/counters with compare modes, a byte-oriented Two-Wire serial interface (I2C-compatible), a programmable serial USART, and an SPI serial port. The debugWIRE on-chip debug system allows single-wire debugging and programming, reducing pin count overhead during development. Technically, the device belongs to the picoPower AVR generation, offering multiple sleep modes including Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby. The V suffix designates the wide 1.8V to 5.5V operating range, making the part suitable for battery-powered designs, while the 10 designates a 10MHz maximum clock at full voltage range. Typical applications include battery-powered sensor nodes, small appliance control, industrial instrumentation, LED lighting control, and motor control auxiliary functions where low-voltage operation and moderate performance are required. When designing with this MCU, remember that the 32-lead MLF package requires the exposed pad to be soldered to a grounded PCB pad for reliable operation and heat dissipation, and that debugWIRE shares the RESET pin, so fuse settings must be managed carefully. This page synthesizes verified distributor data, same-family drop-in alternatives, pinout information, and practical design notes not found in the manufacturer datasheet.

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ATMEGA88V-10MU - 8KB AVR MCU, 10MHz, 1.8-5.5V | Microchip
ATMEGA88V-10MU

ATMEGA88V-10MU - 8KB AVR MCU, 10MHz, 1.8-5.5V | Microchip

The Microchip Technology ATMEGA88V-10MU (Atmel AVR ATmega series) is an 8-bit AVR RISC microcontroller featuring 8KB (4K x 16) of In-System Programmable FLASH memory, 512B EEPROM, 1KB SRAM, and 23 general-purpose I/O lines, delivered in a 32-pad VQFN (5x5 mm, MLF with exposed pad) package rated for a maximum clock speed of 10 MHz across a wide 1.8V to 5.5V supply range. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most of its 131 powerful instructions in a single clock cycle, positioning the ATmega family in the embedded MCU hierarchy between tiny ATtiny parts and larger ATmega128/2560 devices. MCUs of this class integrate CPU, program memory, data memory, timers, and peripherals on a single die, replacing multi-chip solutions in cost-sensitive embedded designs. Key features include picoPower low-power technology with multiple sleep modes, read-while-write FLASH capability, three flexible timer/counters, a 10-bit ADC, and 32 general-purpose working registers tightly coupled to the ALU for high code density and C-friendly performance. Technically, the device uses the AVR enhanced RISC pipeline with single-cycle instruction execution; the wide 1.8V to 5.5V V-range (the V suffix grade) enables direct operation from two alkaline cells, a 3.3V rail, or a 5V industrial bus without a regulator change. Programming is via In-Circuit Serial Programming (ICSP) using two I/O pins plus reset, supported by MPLAB SNAP and legacy AVR ISP tools. Typical applications include battery-powered sensor nodes, home automation and IoT end nodes, industrial control panels, and consumer appliance interfaces, where the low-voltage grade and 10 MHz ceiling trade peak speed for reliable wide-supply operation. Design consideration: the V grade is limited to 10 MHz; if your system runs at 16-20 MHz or 5V with aggressive timing, select the ATMEGA88PA or ATMEGA88-20 drop-in variants in the same 32-VQFN footprint instead. This page synthesizes verified distributor specifications, same-footprint drop-in alternatives, pricing tiers, and practical design notes not found in the manufacturer datasheet.

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ATMEGA88V-10MU - 8KB Flash 10MHz AVR MCU | Microchip
ATMEGA88V-10MU

ATMEGA88V-10MU - 8KB Flash 10MHz AVR MCU | Microchip

The Microchip Technology ATMEGA88V-10MU is an 8-bit AVR RISC microcontroller with 8 KB in-system programmable Flash, 512 B EEPROM, 1 KB SRAM, up to 10 MHz clock operation across a 1.8 V to 5.5 V supply range, and 23 general-purpose I/O lines, packaged in a 32-pad VQFN (5x5 mm, MLF) with exposed pad. An 8-bit microcontroller is a self-contained computing IC that integrates a processor core, program memory, data memory, and peripherals such as timers, UART, SPI, I2C, and ADC on a single chip. Within the power-management and embedded-systems hierarchy, MCUs like the ATmega88 sit at the control layer, executing firmware that drives sensors, actuators, and communication interfaces in embedded products. Key features include the AVR advanced RISC architecture with 130 powerful instructions, most executing in a single clock cycle, 32 general-purpose 8-bit working registers, and a two-cycle hardware multiplier. The picoPower technology delivers low active and sleep currents, while read-while-write Flash supports in-system self-programming for bootloaders. Peripherals include three flexible timers with PWM, an 8-channel 10-bit ADC, a programmable serial USART, SPI, and two-wire I2C interface, plus an analog comparator and on-chip debug via debugWIRE. Technically, the Harvard-architecture core fetches instructions and data over separate buses, sustaining near 1 MIPS per MHz throughput. The V variant operates at 10 MHz maximum across the full 1.8-5.5 V range, unlike the 20 MHz ATMEGA88-20 grades, enabling battery-powered designs that run directly from two alkaline cells or a single lithium cell. Typical applications include battery-powered portable instruments, industrial sensor nodes, HVAC and appliance control, and hobby or educational embedded platforms where low voltage operation and ISP Flash updatability matter. When designing, decouple both VCC pins and AVCC with 100 nF ceramics placed close to the pads, and connect the exposed pad to a solid ground plane for thermal and EMC performance. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.

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ATMEGA88V-10MUR - 8KB AVR MCU 1.8-5.5V 10MHz VQFN-32 | Microchip
ATMEGA88V-10MUR

ATMEGA88V-10MUR - 8KB AVR MCU 1.8-5.5V 10MHz VQFN-32 | Microchip

The Microchip Technology ATMEGA88V-10MUR is a low-power 8-bit AVR RISC microcontroller with 8KB self-programming ISP flash, 1KB SRAM, and 512B EEPROM, executing up to 10 MIPS at 10 MHz in a 32-pad VQFN (5x5 mm) exposed-pad package. It operates from a single 1.8V to 5.5V supply, making it well suited to battery-powered designs. An 8-bit MCU is an integrated circuit that combines a processor core, program memory, data memory, and peripherals such as timers, ADCs, and serial interfaces on a single chip. Within the power-management and embedded hierarchy, the ATmega88 family sits in the AVR ATmega line of microcontroller units, one level below the larger ATmega328 and one level above the ATmega48. Key features include the advanced RISC AVR architecture with 131 mostly single-cycle instructions and 32 general-purpose working registers, three flexible timer/counters, a 10-bit ADC with 8 multiplexed channels, and byte-oriented two-wire (I2C-compatible), SPI, and UART/USART serial interfaces. A picoPower-class V variant supports full functionality down to 1.8V, while brown-out detection, power-on reset, PWM outputs, and a watchdog timer increase system robustness. Technically, the device uses a Harvard architecture with single-level pipelining, achieving close to one MIPS per MHz. Read-while-write flash enables self-programming for bootloaders, and debugWIRE provides on-chip debug over the reset line using tools such as the MPLAB SNAP, reducing pins required for development. Typical applications include battery-powered sensor nodes, industrial controls, consumer appliances, and lighting or motor-control subsystems where 10 MHz performance, a 10-bit ADC, and wide supply tolerance are sufficient. Design consideration: the V-variant is limited to 10 MHz; above 5.5V the maximum safe clock is derated for low-voltage operation, so verify the frequency-versus-voltage curve in the datasheet before clocking near the limit. This page synthesizes distributor pricing, drop-in alternatives such as the ATMEGA88PV-10MUR and ATMEGA328P-MU, and practical design notes not found in the manufacturer datasheet.

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ATMEGA88V-10PJ - 8KB AVR MCU, 1.8V, 28-PDIP | Microchip
ATMEGA88V-10PJ

ATMEGA88V-10PJ - 8KB AVR MCU, 1.8V, 28-PDIP | Microchip

The Microchip ATMEGA88V-10PJ is a low-power 8-bit AVR RISC microcontroller with 8 KB In-System Programmable Flash, 1 KB SRAM, 512 B EEPROM, 23 general-purpose I/O lines, and a 1.8 V to 5.5 V operating supply, delivered in a 28-pin through-hole PDIP (PJ) package rated for industrial temperatures of -40C to +85C. The V suffix denotes a maximum clock frequency of 10 MHz (up to 10 MIPS at 1 MIPS per MHz). An 8-bit AVR microcontroller is a Harvard-architecture processor that executes most of its 131 instructions in a single clock cycle, positioning it within the broader hierarchy of MCU -> 8-bit microcontroller -> embedded processor. The ATmega48/88/168 family shares a common peripheral set and pinout, letting designers scale memory without PCB changes. Key features include self-programming Flash with read-while-write capability, an 8-channel 10-bit ADC, a byte-oriented Two-Wire (I2C-compatible) interface, a serial USART, SPI, three flexible timer/counters with compare modes, and debugWIRE on-chip debug. A 32-register general-purpose file is directly connected to the ALU, achieving near-single-cycle throughput. The core runs from 1.8 V, enabling battery-powered designs, while six power-saving modes including power-down at sub-uA levels extend battery life. The 28-PDIP package suits prototyping, sockets, and legacy through-hole production lines. Typical applications include industrial sensor nodes, appliance control boards, hobby and education platforms such as Arduino-compatible designs, and low-cost battery instruments. Design tip: when running below 5 V, respect the V-suffix 10 MHz frequency-voltage derating curve and enable the internal brown-out detector for supply-dip immunity. This page adds distributor sourcing context, drop-in alternatives, and design notes not found in the manufacturer datasheet. Pricing shown as of 2026-09-19.

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ATMEGA88V-10PU - 8KB AVR MCU 10MHz 5V PDIP-28 | Microchip
ATMEGA88V-10PU

ATMEGA88V-10PU - 8KB AVR MCU 10MHz 5V PDIP-28 | Microchip

The Microchip (Atmel) ATMEGA88V-10PU is a picoPower 8-bit AVR RISC microcontroller featuring 8KB of In-System Programmable Flash memory, 10MHz maximum clock speed, and 1.8V to 5.5V wide supply voltage operation, housed in a 28-pin PDIP through-hole package. An 8-bit microcontroller is an integrated circuit that combines a processor core, memory, and peripherals on a single chip, executing one instruction per cycle in the AVR enhanced RISC architecture. Within the power management hierarchy of embedded systems, MCUs sit at the top level of a board's control chain: system -> MCU -> peripherals. The ATmega88 belongs to the ATmega48/88/168/328 family, sharing the same core, peripherals, and 28-pin pinout across Flash sizes. Key features include 1MIPS-per-MHz throughput from 130 powerful single-cycle instructions, 32 general-purpose working registers, and read-while-write Flash for self-programming. The device integrates 512B EEPROM, 1KB SRAM, 23 general-purpose I/O lines, three flexible timer/counters with compare modes, a byte-oriented Two-Wire (I2C) interface, an SPI serial port, a 10-bit ADC, and an internal calibrated oscillator. The picoPower technology platform minimizes active and sleep-mode currents, supporting battery-operated designs across the 1.8V-5.5V industrial-standard supply range. The Von-Neumann program/data memory space and Harvard bus architecture achieve deterministic single-cycle execution, while ISP (In-System Programming) and debugWIRE on-chip debugging simplify development without removing the chip from the board. Typical applications include industrial control panels, sensor nodes and instrumentation, hobby and educational embedded systems, and small appliances. The PDIP package makes it especially popular for prototyping, breadboarding, and low-volume through-hole production where socketing aids field replacement. Design consideration: the -10 speed grade limits the clock to 10MHz across the full 1.8V-5.5V range; at 5V, avoid exceeding this frequency, and verify brown-out detector settings when operating near 1.8V. A newer device, the ATMEGA88A, supersedes this part per Atmel/Microchip product change notices. This page synthesizes distributor pricing, drop-in alternatives within the ATmega48/88/168/328 family, and practical design notes not found in the manufacturer datasheet.

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ATMEGA88V-15MT - 8-bit AVR MCU 8KB Flash 8MHz QFN-32 | Microchip
ATMEGA88V-15MT

ATMEGA88V-15MT - 8-bit AVR MCU 8KB Flash 8MHz QFN-32 | Microchip

The Microchip Technology ATMEGA88V-15MT is a picoPower 8-bit AVR RISC microcontroller with 8KB ISP flash memory, 1KB SRAM, and 512B EEPROM, operating up to 8 MHz and housed in a 32-pad QFN (5x5 mm MLF) package with exposed pad. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle. Within the power-management hierarchy, the ATmega88 family sits in Microchip's low-power ATmega AVR line, positioned above the ATmega48 and below the ATmega168 and ATmega328, sharing the same core, pinout, and peripheral set. Key features include read-while-write ISP flash, 23 general-purpose I/O lines, 32 general-purpose working registers, and three flexible timer/counters with compare modes. The picoPower technology delivers very low sleep-mode consumption, making the part attractive for battery-powered designs. The 15 speed-grade suffix denotes operation up to 8 MHz across the V-grade voltage range, and the MLF/QFN-32 exposed-pad package improves thermal and ground performance on compact boards. The advanced RISC architecture executes 130 powerful instructions, most in a single cycle, yielding up to 8 MIPS at 8 MHz. On-chip peripherals include a 10-bit ADC, USART, two-wire interface (I2C-compatible), SPI, and an internal calibrated RC oscillator, allowing fully self-contained single-chip designs without external crystals in many applications. Typical applications include battery-powered sensor nodes, industrial control panels, consumer appliances, and low-cost embedded controllers. The wide V-grade supply range supports both 3.3V and 5V systems. A key design consideration: this device is mature and the newer ATMEGA88A/88PA family supersedes it, so new designs should verify long-term supply or plan a footprint-compatible migration. This page synthesizes verified distributor data, drop-in alternatives, pinout, and practical design notes not found in the manufacturer datasheet.

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ATMEGA8A-AN - 8-Bit AVR MCU 16MHz 8KB Flash | Microchip
ATMEGA8A-AN

ATMEGA8A-AN - 8-Bit AVR MCU 16MHz 8KB Flash | Microchip

The Microchip Technology ATMEGA8A-AN is an 8-bit AVR RISC microcontroller with 8 KB of in-system programmable Flash, 512 B EEPROM, 1 KB SRAM, 23 general-purpose I/O lines, and a 16 MHz maximum operating frequency, housed in a 32-pin TQFP (7x7 mm) package. It operates from 2.7 V to 5.5 V and delivers up to 16 MIPS throughput at 16 MHz. An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory (Flash), data memory (SRAM), non-volatile storage (EEPROM), and peripherals such as timers, serial interfaces, and analog-to-digital converters on one die. The AVR architecture is a modified Harvard RISC core that executes most instructions in a single clock cycle, giving the ATmega8A deterministic, low-latency response for real-time control. In the product hierarchy, the ATmega8A sits under 8-bit AVR microcontrollers, which belong to the broader microcontroller (MCU) family within embedded processing ICs. Key features include 8 KB Flash with read-while-write capability, 512 B EEPROM for parameter storage, 1 KB SRAM, 23 programmable I/O lines, three flexible timer/counters with compare modes, an 8-channel 10-bit ADC, a programmable USART, and both SPI and TWI (I2C) serial interfaces. The device supports in-system programming (ISP) and a boot loader, enabling field firmware updates without removing the chip. The ATmega8A is fabricated on Microchip's high-performance, low-power CMOS process and is pin-compatible with the original ATmega8, making it a direct replacement in existing designs. Its 16 MHz maximum clock at 4.5-5.5 V and 8 MHz at 2.7-4.5 V give designers a clear voltage-frequency trade-off for power-sensitive products. Typical applications include motor control boards, USBasp programmer hardware, battery chargers, sensor nodes, and legacy industrial controllers. The 32-TQFP package with 0.8 mm pitch suits automated SMT assembly, and the 23 I/O lines provide enough headroom for keypad, display, and communication interfaces in compact designs. When designing with the ATMEGA8A-AN, decouple VCC and AVCC with 100 nF ceramic capacitors placed close to the pins, and connect the AREF pin through a low-pass filter when using the ADC. Keep the reset pin pulled high through 10 kohm and provide an ISP header for programming. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for selection, cross-referencing, and layout decisions.

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ATMEGA8A-ANR - 8-Bit AVR MCU 16MHz 8KB Flash | Microchip (Tape & Reel)
ATMEGA8A-ANR

ATMEGA8A-ANR - 8-Bit AVR MCU 16MHz 8KB Flash | Microchip (Tape & Reel)

The Microchip Technology ATMEGA8A-ANR is an 8-bit AVR RISC microcontroller with 8 KB of in-system programmable Flash, 512 B EEPROM, 1 KB SRAM, 23 general-purpose I/O lines, and a 16 MHz maximum operating frequency, housed in a 32-pin TQFP (7x7 mm) package. It operates from 2.7 V to 5.5 V and delivers up to 16 MIPS throughput at 16 MHz. An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory (Flash), data memory (SRAM), non-volatile storage (EEPROM), and peripherals such as timers, serial interfaces, and analog-to-digital converters on one die. The AVR architecture is a modified Harvard RISC core that executes most instructions in a single clock cycle, giving the ATmega8A deterministic, low-latency response for real-time control. In the product hierarchy, the ATmega8A sits under 8-bit AVR microcontrollers, which belong to the broader microcontroller (MCU) family within embedded processing ICs. Key features include 8 KB Flash with read-while-write capability, 512 B EEPROM for parameter storage, 1 KB SRAM, 23 programmable I/O lines, three flexible timer/counters with compare modes, an 8-channel 10-bit ADC, a programmable USART, and both SPI and TWI (I2C) serial interfaces. The device supports in-system programming (ISP) and a boot loader, enabling field firmware updates without removing the chip. The ATmega8A is fabricated on Microchip's high-performance, low-power CMOS process and is pin-compatible with the original ATmega8, making it a direct replacement in existing designs. Its 16 MHz maximum clock at 4.5-5.5 V and 8 MHz at 2.7-4.5 V give designers a clear voltage-frequency trade-off for power-sensitive products. Typical applications include motor control boards, USBasp programmer hardware, battery chargers, sensor nodes, and legacy industrial controllers. The 32-TQFP package with 0.8 mm pitch suits automated SMT assembly, and the 23 I/O lines provide enough headroom for keypad, display, and communication interfaces in compact designs. When designing with the ATMEGA8A-ANR, decouple VCC and AVCC with 100 nF ceramic capacitors placed close to the pins, and connect the AREF pin through a low-pass filter when using the ADC. Keep the reset pin pulled high through 10 kohm and provide an ISP header for programming. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for selection, cross-referencing, and layout decisions.

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ATMEGA8A-AU - AVR 8-bit MCU 16MHz 8KB Flash TQFP-32 | Microchip
ATMEGA8A-AU

ATMEGA8A-AU - AVR 8-bit MCU 16MHz 8KB Flash TQFP-32 | Microchip

The Microchip Technology ATMEGA8A-AU is an 8-bit AVR RISC microcontroller delivering up to 16 MIPS throughput at 16 MHz, with 8 KB of In-System Self-Programmable Flash, 512 B EEPROM, 1 KB SRAM, and 23 general-purpose I/O lines, housed in a 32-pin TQFP (7x7 mm, 0.8 mm pitch) surface-mount package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers, UART, SPI, I2C and ADC on one silicon die. Within the power management and embedded-systems hierarchy, the MCU sits at the top of the control chain, reading sensors and driving actuators; the ATmega8A belongs to the AVR family from Microchip Technology (formerly Atmel), one of the most widely deployed 8-bit MCU architectures in education and industry. Key features include the advanced AVR RISC architecture with 130 powerful instructions, most executing in a single clock cycle; a 2-cycle on-chip hardware multiplier; 10-bit ADC with up to 8 single-ended channels; and high-endurance non-volatile memory segments rated for 10,000 Flash and 100,000 EEPROM write cycles. The device runs from 4.5 V to 5.5 V at full 16 MHz speed, per the datasheet supply range for the -16 speed grade. Architecturally, the AVR core uses 32 x 8 general-purpose working registers directly connected to the ALU, achieving fully static operation and eliminating the accumulator bottleneck of classic 8051-style designs. Harvard memory architecture separates program and data buses for parallel instruction fetch. Typical applications include industrial control panels, consumer appliance interfaces, motor control, sensor nodes, and legacy Arduino-compatible boards using the MiniCore hardware package. Design consideration: at 16 MHz choose the 4.5-5.5 V supply window; for 3.3 V battery systems use the ATmega8L (8 MHz max) speed-grade variant instead. This page synthesizes distributor pricing, drop-in alternatives such as the ATmega88A family, and practical design notes not found in the manufacturer datasheet.

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ATMEGA8A-AUR - AVR 8-bit MCU 16MHz 8KB Flash TQFP-32 | Microchip (Tape & Reel)
ATMEGA8A-AUR

ATMEGA8A-AUR - AVR 8-bit MCU 16MHz 8KB Flash TQFP-32 | Microchip (Tape & Reel)

The Microchip Technology ATMEGA8A-AUR is an 8-bit AVR RISC microcontroller delivering up to 16 MIPS throughput at 16 MHz, with 8 KB of In-System Self-Programmable Flash, 512 B EEPROM, 1 KB SRAM, and 23 general-purpose I/O lines, housed in a 32-pin TQFP (7x7 mm, 0.8 mm pitch) surface-mount package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers, UART, SPI, I2C and ADC on one silicon die. Within the power management and embedded-systems hierarchy, the MCU sits at the top of the control chain, reading sensors and driving actuators; the ATmega8A belongs to the AVR family from Microchip Technology (formerly Atmel), one of the most widely deployed 8-bit MCU architectures in education and industry. Key features include the advanced AVR RISC architecture with 130 powerful instructions, most executing in a single clock cycle; a 2-cycle on-chip hardware multiplier; 10-bit ADC with up to 8 single-ended channels; and high-endurance non-volatile memory segments rated for 10,000 Flash and 100,000 EEPROM write cycles. The device runs from 4.5 V to 5.5 V at full 16 MHz speed, per the datasheet supply range for the -16 speed grade. Architecturally, the AVR core uses 32 x 8 general-purpose working registers directly connected to the ALU, achieving fully static operation and eliminating the accumulator bottleneck of classic 8051-style designs. Harvard memory architecture separates program and data buses for parallel instruction fetch. Typical applications include industrial control panels, consumer appliance interfaces, motor control, sensor nodes, and legacy Arduino-compatible boards using the MiniCore hardware package. Design consideration: at 16 MHz choose the 4.5-5.5 V supply window; for 3.3 V battery systems use the ATmega8L (8 MHz max) speed-grade variant instead. This page synthesizes distributor pricing, drop-in alternatives such as the ATmega88A family, and practical design notes not found in the manufacturer datasheet.

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ATMEGA8A-MN - 8-bit AVR MCU, 16MHz, 8KB Flash | Microchip
ATMEGA8A-MN

ATMEGA8A-MN - 8-bit AVR MCU, 16MHz, 8KB Flash | Microchip

The Microchip Technology ATMEGA8A-MN is an 8-bit AVR RISC microcontroller with 8 KB of In-System Programmable (ISP) Flash, 16 MHz maximum clock speed, and 23 general-purpose I/O lines, housed in a 32-pad VQFN/MLF (5x5 mm, MN package) surface-mount footprint. A microcontroller of this class integrates a processor core, program memory, data memory, and peripherals on a single die. Within the product hierarchy, the ATmega8A belongs to the AVR ATmega family of flash-based 8-bit MCUs, which sit under the broader categories of microcontrollers, embedded processors, and semiconductors. AVR cores execute most instructions in a single clock cycle via a Harvard architecture with 32 general-purpose working registers, delivering up to 16 MIPS throughput at 16 MHz. Key features include 8 KB (4K x 16) self-programmable Flash with Read-While-Write capability, 512 bytes of EEPROM for non-volatile parameter storage, and 1 KB of internal SRAM. On-chip peripherals comprise three flexible timer/counters with compare modes, a serial programmable USART, a byte-oriented Two-Wire Interface (TWI/I2C), an SPI serial port, a 10-bit ADC with up to 8 single-ended channels, and an analog comparator. Power features include idle and power-down sleep modes plus an internal RC oscillator, allowing operation with minimal external components. The Mouser listing specifies an operating temperature range up to 105 C. Architecturally, the enhanced AVR RISC core pairs a rich instruction set with single-cycle execution, while the boot-section Flash supports self-programming through the ISP interface. In-System Programming via SPI allows firmware updates after board assembly without a socketed device. Typical applications include motor control (as demonstrated on Microchip's own ATmega8A motor-control board), industrial sensing and control nodes, consumer appliances, and hobby/embedded systems where the ATmega8A is well known as the core of early Arduino boards. Design considerations: the MN (MLF/VQFN-32) package exposes a large die-attach pad on the underside that must be soldered to a grounded copper pour for reliable grounding and heat dissipation; verify your PCB footprint supports it before substituting the TQFP ATMEGA8A-AU. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.

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ATMEGA8A-MNR - 8KB Flash 16MHz AVR MCU | Microchip
ATMEGA8A-MNR

ATMEGA8A-MNR - 8KB Flash 16MHz AVR MCU | Microchip

The Microchip ATMEGA8A-MNR is an 8-bit AVR RISC microcontroller with 8KB of In-System Programmable Flash, 512B EEPROM, 1KB SRAM, and 23 general-purpose I/O lines, executing at up to 16 MHz and packaged in a 32-pad VQFN/MLF (5x5 mm) with exposed pad. A microcontroller is a single-chip embedded computer that integrates a processor core, program memory, data memory, and peripherals such as timers and communication interfaces. The ATmega8A belongs to the AVR ATmega family, which sits within the broader microcontroller hierarchy alongside 32-bit MCUs and application processors. AVR cores use a Harvard architecture with mostly single-cycle instruction execution, delivering roughly 1 MIPS per MHz of clock. Key features include 32 general-purpose 8-bit working registers directly connected to the ALU, three flexible timer/counters with compare modes, and read-while-write Flash that supports safe in-system bootloader updates. On-chip peripherals include a programmable serial USART, an SPI interface, and a two-wire (I2C-compatible) TWI interface, covering most common embedded connectivity needs. Technical depth: the device integrates a 10-bit ADC with up to 8 multiplexed single-ended channels in the QFN package, an internal calibrated RC oscillator (1/2/4/8 MHz) that can eliminate the external crystal in tolerant designs, an analog comparator, a watchdog timer, and power-reduction sleep modes. Programming is via SPI (ISP) or a boot-loader section in Flash, supported by mature toolchains such as Microchip Studio, avr-gcc, and the Arduino IDE-compatible cores. Typical applications include industrial sensor nodes and small automation controllers that use the 105C extended temperature rating, motor-control and appliance boards using the timer PWM outputs, and hobby/legacy embedded designs where the ubiquitous ATmega8 ecosystem simplifies firmware maintenance. Design consideration: at 5V the maximum guaranteed clock is 16 MHz, but at reduced VCC the fmax derates per the datasheet frequency-voltage curve, so verify clock speed against supply tolerance when running below 4.5V. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet. Pricing shown is as of 2026-09-19.

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ATMEGA8A-MU - AVR 8-bit MCU 16MHz 8KB Flash | Microchip (Tape & Reel)
ATMEGA8A-MU

ATMEGA8A-MU - AVR 8-bit MCU 16MHz 8KB Flash | Microchip (Tape & Reel)

The Microchip Technology ATMEGA8A-MU is a high-performance, low-power 8-bit AVR RISC microcontroller delivering 16 MIPS at 16 MHz, with 8 KB ISP flash memory, 512 B EEPROM, 1 KB SRAM and 23 general purpose I/O lines, housed in a 32-pin VQFN (5x5 mm) package. A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, program memory, data memory and peripherals such as timers, ADCs and serial interfaces. Within the embedded systems hierarchy, the ATmega8A belongs to the 8-bit AVR ATmega family from Atmel (now Microchip Technology), positioned below the larger ATmega88/328/64 families while covering the classic low-pin-count embedded control space. Key features include the advanced RISC architecture with 130 powerful instructions, most executing in a single clock cycle, plus 32 general-purpose working registers. The device integrates three flexible timer/counters with compare modes, a 10-bit ADC with 6 multiplexed channels, a byte-oriented two-wire interface (I2C-compatible), an SPI serial port and a programmable USART. In-system programmable (ISP) flash with read-while-write support allows firmware updates in the final product. Architecturally, the AVR core uses a Harvard structure with separate program and data buses, enabling single-cycle instruction fetch and execution. The ATMEGA8A operates from 4.5 V to 5.5 V at the full 16 MHz grade, with power-saving modes including idle and power-down to extend battery life. Internal and external interrupt sources, a watchdog timer and an on-chip debug capability via debugWIRE-style ICSP tools complete the feature set. Typical applications include industrial control and automation nodes, motor and LED control, sensor interfaces and data loggers, home appliances, HVAC systems and hobby/embedded education platforms where the 10-bit ADC and serial ports simplify analog sensing and communication. When designing with this part, note the 4.5 V to 5.5 V supply range of the 16 MHz M-grade: for 3.3 V systems, select the L-grade variant running at reduced clock, or the ATmega88PA family which supports 1.8 V operation. Decouple VCC and AVCC separately with 100 nF ceramic capacitors. This page synthesizes distributor pricing, drop-in alternatives, pinout and practical design notes not found in the manufacturer datasheet alone.

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ATMEGA8A-MUR - AVR 8-bit MCU 16MHz 8KB Flash | Microchip
ATMEGA8A-MUR

ATMEGA8A-MUR - AVR 8-bit MCU 16MHz 8KB Flash | Microchip

The Microchip Technology ATMEGA8A-MUR is a high-performance, low-power 8-bit AVR RISC microcontroller delivering 16 MIPS at 16 MHz, with 8 KB ISP flash memory, 512 B EEPROM, 1 KB SRAM and 23 general purpose I/O lines, housed in a 32-pin VQFN (5x5 mm) package. A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, program memory, data memory and peripherals such as timers, ADCs and serial interfaces. Within the embedded systems hierarchy, the ATmega8A belongs to the 8-bit AVR ATmega family from Atmel (now Microchip Technology), positioned below the larger ATmega88/328/64 families while covering the classic low-pin-count embedded control space. Key features include the advanced RISC architecture with 130 powerful instructions, most executing in a single clock cycle, plus 32 general-purpose working registers. The device integrates three flexible timer/counters with compare modes, a 10-bit ADC with 6 multiplexed channels, a byte-oriented two-wire interface (I2C-compatible), an SPI serial port and a programmable USART. In-system programmable (ISP) flash with read-while-write support allows firmware updates in the final product. Architecturally, the AVR core uses a Harvard structure with separate program and data buses, enabling single-cycle instruction fetch and execution. The ATMEGA8A operates from 4.5 V to 5.5 V at the full 16 MHz grade, with power-saving modes including idle and power-down to extend battery life. Internal and external interrupt sources, a watchdog timer and an on-chip debug capability via debugWIRE-style ICSP tools complete the feature set. Typical applications include industrial control and automation nodes, motor and LED control, sensor interfaces and data loggers, home appliances, HVAC systems and hobby/embedded education platforms where the 10-bit ADC and serial ports simplify analog sensing and communication. When designing with this part, note the 4.5 V to 5.5 V supply range of the 16 MHz M-grade: for 3.3 V systems, select the L-grade variant running at reduced clock, or the ATmega88PA family which supports 1.8 V operation. Decouple VCC and AVCC separately with 100 nF ceramic capacitors. This page synthesizes distributor pricing, drop-in alternatives, pinout and practical design notes not found in the manufacturer datasheet alone.

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ATMEGA8A-PN - AVR 8-bit MCU 16MHz 8KB Flash | Microchip
ATMEGA8A-PN

ATMEGA8A-PN - AVR 8-bit MCU 16MHz 8KB Flash | Microchip

The Microchip Technology ATMEGA8A-PN is an 8-bit AVR ATmega microcontroller with 8KB In-System Programmable Flash, 512B EEPROM, 1KB SRAM, 23 general-purpose I/O lines, and a maximum clock speed of 16MHz, packaged in a 28-pin PDIP (0.300 inch, 7.62mm) through-hole package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals on one die. The ATmega family is built on the AVR enhanced RISC architecture, which executes most instructions in a single clock cycle, achieving throughput close to 1 MIPS per MHz. This makes it a member of the broader hierarchy: MCU -> embedded microcontroller -> integrated circuit -> semiconductor. Key features include 8KB of self-programmable Flash with Read-While-Write support, three flexible Timer/Counters with compare modes, a hardware serial programmable USART, I2C (TWI) and SPI interfaces for connectivity, internal and external interrupt sources, and a 6-channel 10-bit ADC. Operating voltage spans 2.7V to 5.5V, and the PN suffix denotes the industrial temperature grade of -40C to +105C per distributor listings, giving headroom above the typical industrial spec. Architecturally, the AVR core provides 32 general-purpose working registers directly connected to the ALU, allowing two independent registers to be accessed in one instruction executed in one cycle. This single-cycle execution model is the reason AVR parts deliver near-linear MIPS-per-MHz efficiency compared with older 8051-class cores that need 6 to 12 cycles per instruction. Typical applications include hobbyist and educational boards (it is the classic Arduino-compatible target), small appliance and industrial control panels, sensor nodes reading analog inputs through its 10-bit ADC, and low-cost motor or relay control using the timer PWM outputs. Design consideration: because the PDIP package is through-hole, keep crystal traces short and decouple VCC/AVCC pins with 100nF ceramics; also note that migrating firmware to an ATmega88-class pin-compatible part requires interrupt vector remapping per Microchip application note AVR094. This page adds value beyond the datasheet by synthesizing distributor pricing history, pin-compatible ATmega alternatives, drop-in replacement guidance, and practical design notes in one citable reference.

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ATMEGA8A-PU - 8-bit AVR MCU 16MHz 8KB Flash DIP-28 | Microchip
ATMEGA8A-PU

ATMEGA8A-PU - 8-bit AVR MCU 16MHz 8KB Flash DIP-28 | Microchip

The Microchip Technology ATMEGA8A-PU is an 8-bit AVR RISC microcontroller with 16 MHz max clock, 8KB In-System-Programmable Flash memory, and 1KB SRAM, housed in a 28-pin plastic DIP (PDIP) package with 0.1 inch lead pitch. It also integrates 512B of EEPROM and provides 23 general-purpose I/O lines. An 8-bit microcontroller (MCU) is a single-chip processor combining a CPU core, program and data memory, timers, and peripherals such as UART, SPI, and I2C. MCUs sit at the bottom of the embedded hierarchy (MCU -> embedded processor -> SoC) and are the standard choice for cost-sensitive control tasks where a full application processor is unnecessary. The AVR family uses a Harvard architecture with 32 x 8 general-purpose working registers and mostly single-cycle instruction execution. Key features include up to 16 MIPS throughput at 16 MHz, a 2-cycle on-chip hardware multiplier, 130 powerful instructions, three flexible timer/counters with compare modes, and read-while-write Flash for self-programming. Operating voltage is 4.5V to 5.5V, making the -PU speed grade ideal for robust 5V industrial designs. Technical depth: the advanced RISC pipeline executes most instructions in one clock cycle, while the hardware multiplier accelerates math-heavy control loops. Nonvolatile memory endurance of typically 10,000 write cycles for Flash supports field firmware updates via ISP (In-System Programming) through the SPI interface, and the 512B EEPROM retains calibration data through power cycles. Typical applications include 5V industrial control panels, hobby and educational embedded platforms such as Arduino-compatible boards, appliance motor control, and serial-bridge adapters using the built-in USART. Design consideration: this -PU speed grade is rated for 16 MHz only in the 4.5-5.5V range; below 4.5V use the L (low-voltage) grade parts such as ATMEGA8L-8PU. This page adds value beyond the datasheet by synthesizing distributor pricing tiers, drop-in alternatives in the same 28-PDIP footprint, practical design notes, and an alternatives comparison table useful for sourcing decisions.

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ATMEGA8HVA-4CKU - 8KB AVR MCU, 4MHz, 36-LGA | Microchip
ATMEGA8HVA-4CKU

ATMEGA8HVA-4CKU - 8KB AVR MCU, 4MHz, 36-LGA | Microchip

The Microchip Technology ATMEGA8HVA-4CKU is an 8-bit AVR ATmega microcontroller with 8KB (4K x 16) in-system programmable FLASH, 512 bytes of SRAM, 256 bytes of EEPROM, a 4MHz core clock, and SPI connectivity, housed in a 36-pin LGA package measuring 6.5 x 3.5 mm. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest tier of the embedded-computing hierarchy (MCU -> embedded processor -> SoC -> computing system). The AVR ATmega family from Atmel (now Microchip) uses an advanced RISC architecture with mostly single-cycle instruction execution, making it a popular choice for cost-sensitive embedded control. Key features of the ATMEGA8HVA-4CKU include the high-performance, low-power AVR 8-bit RISC core, 8KB of self-programmable FLASH program memory, a 5-channel 12-bit analog-to-digital converter for direct sensor interfacing, and SPI serial communication for peripheral expansion. The device supports a wide supply range with operation noted at 2.5V, 3.3V, and 5V rails in distributor parametric listings. From an architectural standpoint, the AVR core separates program and data buses (Harvard architecture), allowing most instructions to execute in a single clock cycle. This yields efficient MIPS-per-MHz performance, so a modest 4MHz clock is sufficient for many control loops, battery-monitoring tasks, and low-speed serial protocols. In-system programmability of the FLASH simplifies firmware updates in the field. Typical applications include battery-powered portable devices, sensor nodes using the integrated 12-bit ADC, low-cost industrial control boards, and SPI-based peripheral controllers. The compact 36-LGA footprint suits space-constrained PCB designs. When designing with this part, verify supply voltage and clock configuration against the official Microchip datasheet, as the HVA variant has device-specific operating ranges. Note that Octopart classifies this part as obsolete, so plan second-sourcing for new designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA8HVA-4CKUR - 8-bit AVR MCU 8KB Flash 36-LGA | Microchip
ATMEGA8HVA-4CKUR

ATMEGA8HVA-4CKUR - 8-bit AVR MCU 8KB Flash 36-LGA | Microchip

The Microchip (Atmel) ATMEGA8HVA-4CKUR is an 8-bit AVR RISC microcontroller with 8KB of ISP Flash memory, 512B EEPROM, 1KB SRAM, and a 4 MHz maximum clock speed, supplied in a 36-pin LGA (LGA-36) surface-mount package on tape and reel. It operates from 2.5V, 3.3V, or 5V supply rails and is part of the automotive-oriented ATmega HVA family. An 8-bit microcontroller (MCU) is an integrated circuit that combines a processor core, program memory, data memory, and peripherals on a single chip, forming the lowest tier of the embedded-system hierarchy (MCU -> embedded processor -> semiconductor). The AVR architecture uses a Harvard-structure, single-cycle RISC core, executing most instructions in one clock cycle, which gives high code efficiency for battery-powered and cost-sensitive control tasks. Key features of the ATMEGA8HVA-4CKUR include the AVR 8-bit RISC core at up to 4 MHz, 8KB self-programmable Flash, 512B of EEPROM for calibration data retention, 1KB of internal SRAM, and SPI plus LIN-relevant serial connectivity. The HVA variant integrates features aimed at automotive high-voltage environments, distinguishing it from generic ATmega8 commercial parts. Architecturally, the device belongs to the ATmega series with single-cycle I/O access, interrupt-driven peripheral operation, and in-system programmable Flash that permits firmware update after board assembly. Peripherals typical of the family include timers, 10-bit ADC stages, and serial interfaces; exact peripheral counts should be confirmed against the manufacturer datasheet. Typical applications include automotive LIN-bus nodes, battery-management and sensor-supervision modules, body-electronics control points, and industrial monitoring nodes where low supply-voltage flexibility (2.5V/3.3V/5V) and small LGA footprint matter. A key design consideration: this part is classified as obsolete, so new designs should not start on it; existing designs should plan migration to an active AVR part and verify footprint compatibility before layout reuse. This page synthesizes distributor listings, cross-reference comparisons, and lifecycle data not found in the manufacturer datasheet.

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ATMEGA8HVA-4TU - 8KB AVR MCU 4MHz 28-TSOP | Microchip
ATMEGA8HVA-4TU

ATMEGA8HVA-4TU - 8KB AVR MCU 4MHz 28-TSOP | Microchip

The Microchip Technology ATMEGA8HVA-4TU is an 8-bit AVR ATmega microcontroller with 8KB (4K x 16) in-system programmable Flash, 512B EEPROM, 1KB SRAM, a 4MHz maximum clock, and a wide 1.8V to 9V supply range, housed in a 28-pin TSOP-I (0.465 inch / 11.80 mm width) package. An AVR microcontroller is an 8-bit RISC (Reduced Instruction Set Computing) MCU that belongs to the broader class of embedded processors within the power-management and control hierarchy of an electronic system. The AVR architecture executes most of its instructions in a single clock cycle, using a Harvard-architecture pipeline with separate program and data buses, which yields high code efficiency and deterministic real-time behavior. Key features of the ATMEGA8HVA-4TU include 130 powerful instructions with mostly single-cycle execution, 23 general-purpose I/O lines, SPI serial connectivity, and in-system programmable Flash that allows firmware updates without removing the device from the board. The 1.8V to 9V operating range is the standout parameter: it lets the MCU run directly from automotive batteries, 9V supplies, or low-voltage logic rails without an intermediate regulator. The 4MHz speed grade (suffix -4) balances performance against EMI and power consumption. Because the core runs at a modest clock, switching losses and radiated emissions stay low, which matters in electromagnetically noisy automotive and industrial environments. Typical applications include automotive LIN/local-interconnect network nodes, industrial sensor and actuator control, and low-power battery-operated systems where the wide supply range removes a regulator stage. Design consideration: this part is listed as obsolete in multiple distributor parametric databases, so plan a second-source or firmware-compatible successor before committing new designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA8HVA-4TUR - AVR 8-Bit MCU 4MHz 8KB Flash | Microchip
ATMEGA8HVA-4TUR

ATMEGA8HVA-4TUR - AVR 8-Bit MCU 4MHz 8KB Flash | Microchip

The Microchip Technology ATMEGA8HVA-4TUR is an 8-bit AVR ATmega microcontroller IC with a 4 MHz maximum clock speed, 8KB (4K x 16) of FLASH program memory, and a high-voltage tolerant peripheral set, housed in a 28-pin TSOP/TSSOP (0.465 inch, 11.80 mm width) surface-mount package supplied in tape and reel. A microcontroller unit (MCU) is a single-chip embedded computer that integrates a processor core, program memory, data memory, and peripheral interfaces on one die. The AVR ATmega family from Microchip (originally Atmel) sits within the broader hierarchy of 8-bit microcontrollers used in embedded control, sitting above discrete logic and below 32-bit application processors. The AVR core combines a rich instruction set with 32 general-purpose working registers, all directly connected to the arithmetic logic unit, allowing single-cycle instruction execution. Key features of the ATMEGA8HVA-4TUR include the 8KB self-programmable FLASH organized as 4K x 16, a 4 MHz rated operating frequency suited to low-noise, low-EMI designs, and a high-voltage tolerant, open-drain IO pin that supports serial communication per the manufacturer datasheet. In-system programming is supported through 4 general-purpose IO ports that support SPI programming, allowing firmware updates on the assembled PCB without removing the device. Technical context: the HVA variant of the ATmega8 family was developed for applications that must interface with higher-voltage domains, such as automotive battery-connected nodes and sensor conditioning circuits, where a standard MCU pin would be damaged. The AVR architecture's single-cycle execution delivers roughly 1 MIPS per MHz, so at 4 MHz the device provides approximately 4 MIPS of processing throughput. Typical applications include automotive LIN-bus and body-electronics nodes, high-voltage sensor interfaces, battery management supervisory circuits, and industrial control modules that require SPI-programmable firmware in a compact 28-pin footprint. A key design consideration: this device is listed as obsolete by multiple distributor comparison services, so new designs should evaluate drop-in alternatives such as the ATMEGA16HVA-4TU (same 28-TSOP footprint, 16KB FLASH) or plan a redesign to an active AVR or PIC part. This page synthesizes distributor pricing signals, obsolescence status, drop-in alternative analysis, and practical design notes not found in a single manufacturer datasheet, giving engineers a complete sourcing and replacement picture in one place.

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