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ATMEGA164A-MCH

ATMEGA164A-MCH - 16KB AVR MCU 20MHz 44-QFN | Microchip

The Microchip Technology ATMEGA164A-MCH is an 8-bit AVR RISC microcontroller with 16 KB in-system-programmable FLASH, 512 B EEPROM, 1 KB SRAM and a maximum clock rate of 20 MHz, housed in a 44-pin QFN (5x5 mm) package with exposed pad. It executes up to 20 MIPS at 20 MHz because most of its 131 AVR instructions complete in a single clock cycle, making it one of the most code-dense 8-bit MCUs in the AVR family. An AVR ATmega microcontroller is a member of the microcontroller unit (MCU) family within the broader semiconductor hierarchy: MCU -> embedded processor -> integrated circuit. An MCU integrates a CPU core, program memory, data memory and peripherals (timers, serial interfaces, ADC) on a single die, replacing multi-chip designs in embedded systems and reducing both BOM count and PCB area. The 'A' suffix denotes the picoPower variant with revised sleep-mode current figures relative to the classic ATmega164P die. Key features include 32 general purpose I/O lines and 32 general purpose working registers directly connected to the ALU for fast single-cycle operation. The memory architecture supports read-while-write ISP FLASH, enabling firmware updates in the field. Peripherals include a real-time counter, multiple timers with PWM, a 10-bit ADC, USART, SPI and TWI (I2C) serial interfaces, and JTAG for on-chip debugging and boundary scan. The advanced RISC Harvard architecture separates program and data buses, so instruction fetch and data access occur in parallel. Operating from a 2.7 V to 5.5 V supply range (per distributor listings), the device suits both 3.3 V and 5 V designs. Power management includes idle, power-down, power-save and standby sleep modes for battery-operated products. The 44-QFN footprint saves board area versus TQFP while the exposed pad improves ground and thermal performance. Choose the system clock carefully - full 20 MHz operation requires a 4.5 V to 5.5 V supply, while lower-voltage rails limit the maximum safe frequency per the datasheet speed-grade table. Typical applications include industrial control and automation nodes, consumer appliances, battery-powered instrumentation, and embedded controllers requiring in-field ISP firmware updates. This page synthesizes distributor pricing, drop-in alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet.

USD $3.55 재고 있음

ATMEGA164A-MCHR

ATMEGA164A-MCHR - 8-bit AVR MCU 16KB Flash 20MHz QFN-44 | Microchip

The Microchip Technology (Atmel) ATMEGA164A-MCHR is a low-power 8-bit AVR RISC microcontroller with 16 KB ISP Flash memory, 512 B EEPROM, 1 KB SRAM, and a 20 MHz maximum clock, housed in a 44-pin QFN (MLF) 5x5 mm surface-mount package supplied on tape and reel. A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals on one die. The ATmega164A belongs to the AVR 8-bit microcontroller family, sitting below the ATmega324A/644A/1284 within the megaAVR product hierarchy of Microchip Technology. Key features include the AVR enhanced RISC architecture executing 133 powerful instructions, most in a single clock cycle, delivering throughput approaching 1 MIPS per MHz. The 16 KB Flash supports read-while-write ISP programming, and the device integrates a real-time counter, four flexible timer/counters with compare modes and PWM, and general-purpose I/O lines (32 per Microchip product page). Architecturally, the ATmega164A uses a Harvard structure with 32 general-purpose working registers directly connected to the ALU, allowing two independent instructions to execute in one cycle. The rich instruction set and single-cycle execution minimize code size and interrupt latency in embedded control loops. Typical applications include industrial automation, home appliance control, sensor data acquisition, and embedded systems where 16 KB of program memory is sufficient. Development is supported by Microchip MPLAB tools and the open-source MightyCore Arduino hardware package. Design consideration: the QFN (MLF) package exposes a large ground pad on the underside that must be soldered to a grounded PCB land pattern for reliable operation and thermal performance. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

USD $3.01 재고 있음

ATMEGA164A-MU

ATMEGA164A-MU - 8-bit AVR MCU 16KB Flash 20MHz VQFN-44 | Microchip

The Microchip Technology ATMEGA164A-MU is a low-power 8-bit AVR RISC microcontroller with 16 KB ISP FLASH, 512 B EEPROM, 1 KB SRAM, up to 20 MHz operation, and 32 general-purpose I/O lines, housed in a 44-pin VQFN (7x7 mm) package with exposed pad. A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers, UARTs, and ADCs onto one die. The ATmega164A belongs to the ATmega family, which sits within the broader AVR 8-bit microcontroller product line - itself part of the general-purpose MCU hierarchy within power-embedded system design. By executing powerful instructions in a single clock cycle, the AVR enhanced RISC architecture achieves throughputs close to 1 MIPS per MHz, minimizing the trade-off between processing power and power consumption. Key features include 16 KB of in-system self-programmable FLASH with read-while-write capability, 133 powerful instructions with most executing in a single clock cycle, 32 general-purpose working registers, a real-time counter (RTC), and four flexible timer/counters with compare modes and PWM. Internal calibrated oscillator, watchdog timer, and brown-out detection eliminate external components. Technically, the Harvard architecture separates program and data buses, allowing simultaneous access for single-cycle instruction fetch and execution. The JTAG interface (per family documentation) supports on-chip debugging and boundary-scan, while the SPI and 8-channel 10-bit ADC extend analog and digital connectivity for sensor-intensive designs. Typical applications include industrial control and automation nodes, consumer appliances, battery-powered instrumentation, and embedded control in HVAC and metering systems where a 44-pin VQFN footprint and 2.7V to 5.5V supply range simplify design reuse. A key design consideration is supply voltage versus clock speed: full 20 MHz operation typically requires the higher end of the 2.7V to 5.5V supply range, so derate the clock for low-voltage battery designs to guarantee timing margin. This page synthesizes distributor pricing, drop-in alternatives within the ATmega family, and practical design notes not consolidated in the manufacturer datasheet summary.

USD $3.01 재고 있음

ATMEGA164A-MUR

ATMEGA164A-MUR - 16KB Flash AVR MCU 20MHz VQFN-44 | Microchip

The Microchip Technology ATMEGA164A-MUR is an 8-bit AVR RISC microcontroller with 16 KB ISP Flash, 512 B EEPROM, and 1 KB SRAM, running at up to 20 MHz from a 1.8 V to 5.5 V supply, packaged in a 44-pad VQFN (7x7 mm) with exposed pad. It combines 32 general-purpose I/O lines, a 10-bit ADC, and multiple serial interfaces in a compact leadless footprint. A microcontroller (MCU) integrates a processor core, program memory, data memory, and peripherals on a single chip, sitting at the lowest level of the embedded-system hierarchy (semiconductor -> MCU -> embedded board -> complete device). The ATmega family is based on the AVR enhanced RISC architecture, which executes most of its 133 powerful instructions in a single clock cycle, achieving throughput approaching 1 MIPS per MHz. Key features include 16 KB of self-programmable ISP Flash with read-while-write support, 512 B EEPROM for non-volatile calibration data, 1 KB SRAM, two 8-bit timers/counters and one 16-bit timer with PWM, an 8-channel 10-bit ADC, USART, SPI, and two-wire (I2C/TWI) interfaces, plus JTAG for boundary scan and on-chip debugging. The 20 MHz maximum clock rate delivers roughly 20 MIPS of performance. Architecturally, the AVR core uses a Harvard structure with 32 general-purpose working registers directly connected to the ALU, allowing two independent register accesses in one instruction. In-system programmability permits firmware updates on the assembled board via SPI (ISP) or a JTAG interface, reducing production cost and field-update effort. Typical applications include industrial control and automation nodes, sensor and data-logging systems, consumer appliance controllers, and motor-control or lighting subsystems that need moderate flash, rich analog input, and multiple serial buses in a space-saving QFN package. Design consideration: keep the supply within 1.8 V to 5.5 V and note that maximum clock frequency derates at low supply voltage and elevated temperature; decouple VCC and AVCC with 100 nF ceramics placed close to the exposed pad, which should be soldered to a ground pour for thermal and EMI performance. This page synthesizes distributor pricing, same-footprint drop-in alternatives, and practical design guidance not found in the manufacturer datasheet, with pricing referenced as of 2026-09-16.

USD $3.20 재고 있음

ATMEGA164A-PU

ATMEGA164A-PU - 8-bit AVR MCU 16KB Flash 20MHz | Microchip

The Microchip Technology ATMEGA164A-PU is an 8-bit AVR RISC microcontroller with 16 KB of In-System Programmable Flash, 1 KB of SRAM, and 512 bytes of EEPROM, executing at up to 20 MHz and housed in a 40-pin PDIP (0.600 inch, 15.24 mm) through-hole package. An 8-bit microcontroller is an integrated circuit that combines a processor core, memory, and peripherals such as timers, UARTs, and ADCs on a single chip, forming the highest-volume tier of the embedded systems hierarchy (MCU -> embedded processor -> semiconductor). The AVR architecture executes most of its powerful instruction set in a single clock cycle, achieving throughput near one MIPS per MHz, so designers can trade clock speed directly against power consumption. Key features of the ATMEGA164A include 32 general purpose I/O lines, 32 general purpose working registers, two USARTs, SPI and two-wire (I2C) interfaces, an 8-channel 10-bit ADC, a real-time counter, three flexible timers with compare modes and PWM, and internal calibrated oscillator. It operates from 2.5 V to 5.5 V with operating grades for industrial (-40C to +85C) temperature ranges. Technically, the device is built on AVR enhanced RISC architecture with single-cycle execution, read-while-write Flash for self-programming, and multiple sleep modes plus power-down/power-save operation for battery designs. DebugWIRE on-chip debugging is supported through the RESET pin with a single-wire interface. Typical applications include industrial control and automation, instrumentation, and hobby/prototyping projects where the through-hole PDIP package simplifies hand soldering, socketing, and breadboarding. Design consideration: for maximum reliability, decouple VCC and AVCC separately and use the external crystal option when you need UART timing accuracy beyond the internal oscillator tolerance. This page synthesizes distributor pricing, drop-in alternatives within the ATmega164A/324A/644A/1284 family, and practical design notes not found in the manufacturer datasheet.

USD $3.15 재고 있음

ATMEGA164P-15AT

ATMEGA164P-15AT - 16MHz AVR MCU 16KB Flash 44-TQFP | Microchip

The Microchip Technology ATMEGA164P-15AT is an 8-bit AVR RISC microcontroller with 16 KB in-system-programmable FLASH memory, 512 B EEPROM, 1 KB SRAM, and 32 general-purpose I/O lines, operating at up to 16 MHz in a 44-pin TQFP (10x10 mm) package. An 8-bit AVR microcontroller is a single-chip computing device built around the AVR enhanced RISC architecture, which executes most of its 131 powerful instructions in a single clock cycle. Within the system hierarchy, an MCU such as the ATmega164P integrates processor core, program memory, data memory, timers, communication peripherals, and an ADC into one package, making it the heart of embedded control systems where a discrete CPU plus external memory would otherwise be required. Key differentiating features include read-while-write FLASH for safe in-application firmware updates, the picoPower technology suite for sub-microamp power-down current, three flexible 16-bit and 8-bit timer/counters with compare modes and PWM, and two full USARTs. Per the Microchip product page, the device also provides a byte-oriented Two-Wire (I2C) interface, an 8-channel 10-bit ADC, and an on-chip internal oscillator, reducing external component count. The ATMEGA164P-15AT operates from 2.7V to 5.5V with a 16 MHz maximum clock. The picoPower variant's internal voltage regulator and low-power design modes (idle, power-down, power-save, standby) enable battery-powered designs with multi-year battery life. The AVR core's 32 general-purpose working registers are directly connected to the ALU, allowing two independent registers to be accessed in one instruction and delivering up to 16 MIPS throughput at 16 MHz. Typical applications include industrial automation and control nodes, home and building automation, battery-powered portable instruments, and sensor interfaces exploiting the 10-bit ADC. Two USARTs simplify multi-drop communication systems and RS-485 gateways. When designing with this MCU, budget the 1 KB SRAM carefully; large buffers or deep stacks in C code can overflow quickly, so static allocation review is essential at this memory class. This page synthesizes distributor data, drop-in family alternatives, pinout, and practical design notes not found in the manufacturer datasheet.

USD $2.35 재고 있음

ATMEGA164P-15AT1

ATMEGA164P-15AT1 - 8-bit AVR MCU, 16KB Flash, 44-TQFP | Microchip

The Microchip Technology ATMEGA164P-15AT1 is a high-performance, low-power 8-bit AVR RISC microcontroller with 16 KB ISP flash memory, 1 KB SRAM, 512 B EEPROM, and 32 general purpose I/O lines, packaged in a 44-pin TQFP (10x10 mm) supplied in Tape & Reel format. The picoPower ATmega P-class core executes most of its 131 instructions in a single clock cycle at up to 16 MHz. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that separates program and data memory, allowing an instruction to be fetched and executed in the same cycle. Within the semiconductor hierarchy, the ATmega164P sits in the general-purpose MCU class of power-management-friendly embedded processors, one memory tier above the 8 KB ATmega16/ATmega162 family and below the 64 KB ATmega644P, sharing the same 40-plus-pin TQFP footprint family. Key features include read-while-write (RWW) flash for self-programming, the picoPower technology suite for microamp-level sleep currents, an internal RC oscillator that removes the need for an external crystal in non-timing-critical designs, and two 8-bit and one 16-bit timer for PWM generation. The 15 speed grade is the industrial grade supplied on tape and reel for automated assembly. Technically, the advanced RISC architecture pairs 32 general purpose working registers directly with the ALU, so a single-cycle operation executes register-to-register arithmetic without accumulator bottlenecks. Peripherals include USART, SPI, two-wire (I2C-compatible) interface, analog comparator, and an 8-channel 10-bit ADC with a differential mode and gain stage. Typical applications span industrial sensor nodes, HVAC and building automation controllers, battery-powered metering, and consumer appliance boards where 16 KB of code is sufficient and the picoPower sleep modes extend battery life. Design-wise, remember that the low-frequency crystal oscillator is optimized for very low power with reduced crystal drive strength, so crystal load capacitance and ESR must be re-verified when migrating from ATmega16/32 designs, per Microchip application note AVR505. This page synthesizes verified distributor pricing, drop-in family alternatives, application guidance, and design notes not consolidated in the manufacturer datasheet.

USD $3.60 재고 있음

ATMEGA164P-15MZ

ATMEGA164P-15MZ - 8-bit AVR MCU 16KB Flash 44-VQFN | Microchip

The Microchip Technology ATMEGA164P-15MZ is an 8-bit AVR RISC microcontroller with 16KB ISP Flash memory, 512B EEPROM, 1KB SRAM, and 32 general-purpose I/O lines, packaged in a 44-pin VQFN (7x7 mm) with exposed pad and rated to 125 degrees C. A microcontroller is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers, UARTs, and ADCs into one IC. Within the semiconductor hierarchy, this device belongs to the AVR ATmega family -> 8-bit RISC microcontrollers -> microcontroller units (MCUs) -> integrated circuits. MCUs are the programmable heart of embedded systems, executing control, sensing, and communication tasks across industrial and consumer electronics. Key features include the picoPower technology platform for low sleep-mode consumption, 16KB self-programmable Flash with read-while-write support, a 16MHz AVR RISC core executing most instructions in a single clock cycle, and JTAG for on-chip debugging and boundary scan. The 44-VQFN package saves board area versus the TQFP variant while the exposed pad improves thermal and ground performance. Architecturally, the AVR Harvard-structure core uses 32 general-purpose working registers directly connected to the ALU, allowing one-cycle instruction execution. Peripherals include an 8-channel 10-bit ADC, USART, SPI, two-wire interface (I2C), three timers (two 8-bit, one 16-bit with PWM), analog comparator, and an internal RC oscillator. In-system programmability via SPI (ICSP) enables field firmware updates without removing the device. Typical applications include industrial automation control nodes, consumer appliance controllers, and motor control or lighting systems where a mid-density 8-bit MCU with rich analog and communication peripherals reduces bill-of-materials count. The 125-degree C grade suits harsh industrial environments. Design consideration: select clock sources conservatively - the internal 8MHz RC oscillator saves external components, but the '-15' speed grade indicates a maximum 16MHz rating, so verify crystal and VCC combinations against the datasheet frequency-versus-voltage curves before finalizing designs. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single decision-ready reference.

USD $8.83 재고 있음

ATMEGA164P-20AQ

ATMEGA164P-20AQ - 16KB Flash 8-bit AVR MCU 20MHz TQFP-44 | Microchip

The Microchip Technology (Atmel) ATMEGA164P-20AQ is an 8-bit AVR RISC microcontroller with 16 KB ISP flash memory, 512 B EEPROM, and 1 KB SRAM, running at up to 20 MHz from a 2.7 V to 5.5 V supply in a 44-pin TQFP (10x10 mm) package rated for extended temperature (-40C to +85C, A suffix green package). An 8-bit AVR microcontroller is a Harvard-architecture RISC processor in which flash program memory, SRAM data memory, and I/O peripherals each occupy separate address spaces, allowing most instructions to execute in a single clock cycle. Within the power-management hierarchy, the ATmega family sits between tinyAVR devices and the larger ATmega128x parts, offering 32 general-purpose I/O lines, 32 general-purpose working registers, and a full peripheral set including UART, SPI, and TWI (I2C) serial interfaces. Key differentiating features include picoPower technology for ultra-low power consumption, read-while-write flash for in-system self-programming, 131 powerful RISC instructions with mostly single-cycle execution delivering up to 20 MIPS throughput at 20 MHz, and two flexible 8-bit/16-bit timers with PWM outputs. An 8-channel 10-bit ADC, analog comparator, programmable watchdog timer with separate on-chip oscillator, and on-chip debug capability via debugWIRE complete the peripheral set. The picoPower process technology reduces standby currents dramatically: power-down mode consumption is far below standard ATmega parts, making the P-suffix devices suited to battery-powered designs. The extended-temperature (AQ) suffix and green/RoHS packaging suit industrial deployments. Typical applications include industrial automation nodes, battery-powered metering and sensor transmitters, motor control interfaces, and embedded communication gateways where 16 KB of code space, rich I/O, and low standby current are required. A key design consideration: the low-frequency crystal oscillator is optimized for very low power and has reduced driver strength compared with ATmega16/32, so crystal load capacitance and ESR must be carefully selected when migrating designs (see Atmel/Microchip application note AVR505). This page synthesizes distributor pricing, pin-to-pin drop-in alternatives across the ATmega164/324/644 family, and practical migration design notes not consolidated in the manufacturer datasheet.

USD $2.94 재고 있음

ATMEGA164P-20AQR

ATMEGA164P-20AQR - 16KB Flash 20MHz AVR MCU | Microchip

The Microchip Technology ATMEGA164P-20AQR is an 8-bit AVR RISC microcontroller with 16 KB ISP flash memory, 512 B EEPROM, and 1 KB SRAM, running at up to 20 MHz from a 2.7V to 5.5V supply in a 44-pin TQFP (10x10 mm) surface-mount package. An 8-bit AVR microcontroller is a single-chip processor based on the AVR enhanced RISC architecture, in which most instructions execute in a single clock cycle to deliver throughput close to 1 MIPS per MHz. Within the embedded systems hierarchy it spans microcontroller -> 8-bit MCU -> AVR ATmega family -> picoPower device class, combining CPU, program memory, data memory, and peripherals in one package for cost- and power-sensitive designs. Key features include read-while-write flash for safe in-application firmware updates, 32 general-purpose I/O lines, 32 general-purpose working registers, and the picoPower low-power CMOS process for aggressive sleep-mode current targets. Peripherals include USARTs, SPI, two-wire interface (I2C-compatible), a 10-bit ADC with 8 channels, timers/PWM, and an on-chip debug/ICSP path compatible with MPLAB SNAP. Architecturally, the ATmega164P pairs the AVR RISC core with Harvard memory organization, allowing simultaneous program and data access; the datasheet (Atmel-42742) documents in-system programmable flash and the full peripheral register set. The single-cycle execution model lets designers trade clock speed directly against power consumption. Typical applications include industrial control nodes, consumer appliances, sensor and actuator interfaces, and battery-powered instrumentation where 5V logic compatibility and 20 MIPS headroom are needed. Design consideration: pin-compatible migration across the ATmega164P/324P/644P family is supported (see Microchip application note AVR505), so flash footprint can be scaled without a PCB change. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

USD $0.97 재고 있음

ATMEGA164P-20MQ

ATMEGA164P-20MQ - 8-Bit AVR MCU 20MHz 16KB Flash | Microchip

The Microchip Technology ATMEGA164P-20MQ is a picoPower 8-bit AVR RISC microcontroller delivering 20 MHz maximum operating frequency, 16 KB ISP flash memory with read-while-write support, and 1 KB SRAM, housed in a 44-pin VQFN (7x7 mm) package with exposed pad. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle, sitting within the broader hierarchy of MCU -> microcontroller -> embedded processor. The ATmega family from Microchip Technology (formerly Atmel) is widely used for cost-sensitive embedded control where deterministic execution and low power matter more than raw compute throughput. Key features include 16 KB self-programmable ISP flash (8K x 16), 512 B EEPROM, 1 KB internal SRAM, 32 general purpose I/O lines, and 32 general purpose working registers. The picoPower technology enables very low power consumption in sleep modes, making the part suitable for battery-powered designs. On the peripheral side, the ATMEGA164P-20MQ integrates three flexible 16-bit and 8-bit timer/counters with compare modes and PWM, two USARTs for dual serial channels, a byte-oriented Two-Wire serial interface (TWI/I2C-compatible), an SPI interface, and an 8-channel 10-bit ADC. Operating voltage spans 2.7 V to 5.5 V, allowing both 3.3 V and 5 V designs; the 20 MHz speed grade applies across the extended temperature range. Typical applications include industrial sensor nodes, HVAC and building automation controllers, motor control auxiliaries, consumer appliances, and battery-powered metering where dual USART and 10-bit ADC integration reduce system BOM cost. Design tip: the 44-VQFN exposed pad must be soldered to a grounded copper pour for thermal relief and signal integrity, and the 20 MHz grade requires a clean decoupling network on AVCC and VCC. This page synthesizes distributor pricing context, drop-in alternatives, pinout data, and practical design notes not found in a single manufacturer datasheet.

USD $2.96 재고 있음

ATMEGA164P-20MU

ATMEGA164P-20MU - 8-bit AVR MCU 20MHz 16KB Flash | Microchip

The Microchip Technology ATMEGA164P-20MU is a high-performance picoPower 8-bit AVR RISC microcontroller with 16KB ISP FLASH memory, 20MHz max clock speed, and 2.7V to 5.5V supply range, housed in a 44-pin VQFN (7x7 mm) 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 and embedded control hierarchy, MCUs like the ATmega164P sit at the heart of embedded systems, combining program memory, SRAM, EEPROM, timers, and communication peripherals on a single die. Microchip (formerly Atmel) AVR devices are programmed through ISP (In-System Programming) and supported by the AVR GCC toolchain and Atmel Studio / Microchip Studio IDE. Key features include 16KB self-programmable FLASH with read-while-write support, 512B EEPROM, 1KB SRAM, 32 general purpose I/O lines, and 32 general purpose working registers. The picoPower technology delivers low-power sleep modes (idle, power-down, power-save) suitable for battery-operated products. Technically, the device integrates a two-cycle on-chip multiplier, three flexible 8/16-bit timer/counters with compare modes and PWM, a real-time counter (RTC) with separate oscillator, two USARTs, a byte-oriented Two-Wire Interface (TWI/I2C), an SPI serial port, and an 8-channel 10-bit ADC. The enhanced RISC core implements 133 powerful instructions, most single-cycle, achieving up to 20 MIPS throughput at 20MHz. Typical applications include industrial control and automation nodes, consumer appliances, sensor and battery-powered data loggers, and embedded communication interfaces such as RS-485 gateways using the dual USARTs. The 44-VQFN (7x7) footprint suits compact two-layer and four-layer PCBs. When designing with the ATMEGA164P-20MU, decouple VCC with 0.1uF ceramics at each supply pin and keep the exposed pad soldered to a ground pour for thermal and signal integrity. Note that Microchip recommends the newer ATMEGA164PA for new designs. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, with data verified as of 2026-09-16.

USD $2.98 재고 있음

ATMEGA164P-20MUR

ATMEGA164P-20MUR - 8-Bit AVR MCU 20MHz 16KB Flash | Microchip

The Microchip ATMEGA164P-20MUR is a picoPower 8-bit AVR RISC microcontroller delivering 20 MHz maximum clock frequency, 16 KB (8K x 16) ISP Flash memory, and 1 KB SRAM in a 44-pin VQFN (7x7 mm) package with exposed pad. A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers and serial interfaces on one die. Within the embedded-systems hierarchy, the ATmega164P sits in Microchip (formerly Atmel) AVR ATmega family of general-purpose 8-bit MCUs, positioned below the ATmega644/1284 and above the ATmega16 in memory density. Key features include 16 KB of self-programmable ISP Flash with read-while-write support, 512 B EEPROM for nonvolatile parameter storage, 32 general-purpose I/O lines, and two dedicated USARTs for multi-channel serial communication. The 8-channel, 10-bit ADC supports sensor interfacing, while the byte-oriented Two-Wire interface (TWI, I2C-compatible) and SPI enable peripheral expansion. Three flexible timer/counters with compare modes and PWM outputs cover motor control and lighting-dimming tasks. Technically, the AVR advanced RISC architecture executes 133 powerful instructions, most in a single clock cycle, through a 32-register file directly connected to the ALU. This achieves up to 20 MIPS throughput at 20 MHz. The picoPower technology set provides multiple sleep modes and a real-time counter running from a 32 kHz crystal, cutting standby current dramatically for battery designs. Typical applications include industrial control panels, HVAC and building automation nodes, consumer appliances, and instrument front ends where two UARTs, ample analog inputs, and 5V tolerance simplify the BOM. For design, note that full 20 MHz operation requires a 4.5V to 5.5V supply per the AVR speed-grade convention; at 2.7V to 5.5V the safe operating frequency is lower, so verify the supply rail before fixing the crystal frequency. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

USD $1.50 재고 있음

ATMEGA164P-20PQ

ATMEGA164P-20PQ - 16KB AVR MCU 20MHz PDIP-40 | Microchip

The Microchip Technology ATMEGA164P-20PQ is a high-performance picoPower 8-bit AVR RISC microcontroller with 16 KB ISP flash memory, 512 B EEPROM, 1 KB SRAM, and 20 MHz maximum clock speed, housed in a 40-pin PDIP (0.600 inch, 15.24 mm) package rated for extended temperature operation at 5 V. A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and programmable peripherals on one die. The ATmega164P belongs to the AVR family of 8-bit MCUs, positioned within the broader hierarchy of embedded processors used in countless electronic products. AVR cores execute most of their 131 powerful instructions in a single clock cycle, delivering up to 20 MIPS throughput at 20 MHz. Key features include 16 KB of in-system self-programmable flash with read-while-write support, 32 general purpose I/O lines, 32 general purpose working registers, a real-time counter, three flexible timer/counters with compare modes and PWM, and two USARTs for dual serial communication channels. The picoPower technology platform enables low-power design with multiple sleep modes. Technical depth: the enhanced AVR RISC architecture couples a fully static core with byte-oriented Two-Wire Interface (TWI/I2C), SPI, an 8-channel 10-bit ADC, and a programmable watchdog timer with on-chip oscillator. In-system programming via SPI removes the need for external programming voltage, and bootloader flash sections support field firmware updates over UART. Typical applications include industrial control panels, sensor and data-logging systems, hobby and education platforms (the DIP package is breadboard-friendly), and small appliances requiring two independent UART channels for RS-485 plus debug connectivity. Design consideration: run the ATMEGA164P-20PQ at 4.5 V to 5.5 V; the P suffix denotes picoPower, so configure brown-out detection and sleep modes properly to realize the datasheet power figures. The extended-temperature PQ grade suits -40C environments. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.

USD $2.81 재고 있음

ATMEGA164P-20PU

ATMEGA164P-20PU - 8-bit AVR MCU 16KB Flash 20MHz DIP-40 | Microchip

The Microchip Technology ATMEGA164P-20PU is a picoPower 8-bit AVR RISC microcontroller with 16 KB ISP FLASH memory, 20 MHz maximum clock frequency, and 2.7 V to 5.5 V supply range, housed in a 40-pin PDIP (DIP-40) through-hole package. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle. Within the power-management IC hierarchy, it sits at the embedded-control level: microcontroller -> embedded processor -> system-on-chip. The ATmega family is widely used for standalone embedded control, hobby and educational systems, and industrial sensing nodes. Key features include 16 KB of self-programmable ISP FLASH with read-while-write capability, 512 B EEPROM, 1 KB internal SRAM, and 32 general-purpose I/O lines. The picoPower technology delivers low active and sleep current consumption, making the device suitable for battery-powered designs. Peripherals include two USARTs, a byte-oriented Two-Wire Interface (TWI/I2C), an SPI interface, an 8-channel 10-bit ADC, three flexible timers/counters with compare modes and PWM, a real-time counter, and on-chip JTAG debug/programming. The Advanced RISC Architecture provides 131 powerful instructions, most executing in a single clock cycle, with 32 general-purpose working registers fully connected to the ALU. Executing one instruction per clock at 20 MHz yields up to 20 MIPS throughput. In-system programmability via SPI, plus JTAG boundary-scan per IEEE 1149.1 methodology support, simplifies manufacturing and field updates. Typical applications include industrial control panels, sensor and data-logging nodes, motor and LED control, and educational/embedded platforms where through-hole DIP mounting allows easy prototyping and socketed replacement. A key design consideration: the P (picoPower) variant has a newer die revision, the ATMEGA164PA, which is drop-in compatible and recommended for new designs; also note the device supports VCC down to 2.7 V, but full 20 MHz operation requires approximately 4.5 V to 5.5 V per AVR speed-grade curves. This page adds distributor pricing, drop-in alternatives, complete DIP-40 pinout, and design notes not consolidated in the manufacturer datasheet.

USD $1.55 재고 있음

ATMEGA164P-A15AZ

ATMEGA164P-A15AZ - 8-bit AVR MCU 16KB Flash, Automotive | Atmel

The Atmel (Microchip Technology) ATMEGA164P-A15AZ is an 8-bit AVR RISC microcontroller with 16 KB of in-system programmable Flash memory, 512 B EEPROM, and 1 KB SRAM, housed in a 44-pin automotive-grade TQFP package (14 x 14 mm, 1 mm height) with gull-wing terminals and a 2.7 V to 5.5 V supply range. An 8-bit AVR microcontroller is a Harvard-architecture processor that executes most of its 133 powerful instructions in a single clock cycle. In the embedded-systems hierarchy, the MCU sits above discrete logic and below application processors, integrating CPU, program memory, data memory, timers, UART, SPI, TWI (I2C) and analog peripherals on a single die. The AVR family is widely used for cost-sensitive control tasks where a full ARM device would be over-specified. Key features of this part include the picoPower AVR core for low active and sleep current, read-while-write Flash for self-programming and bootloaders, 32 general purpose I/O lines, 32 general purpose working registers, and an advanced RISC architecture with single-cycle execution. The -A15AZ suffix denotes the automotive temperature grade, making it suitable for harsh environments beyond commercial ratings. Technically, the device pairs the enhanced AVR core with two 8-bit timers, one 16-bit timer, a 10-bit ADC, USART, SPI, and TWI interfaces. In-circuit debugging and In-Circuit Serial Programming (ICSP) are supported through the SPI pins using tools such as the MPLAB SNAP, per the Microchip product page, enabling field firmware updates without socketed parts. Typical applications include automotive body modules and sensor nodes, industrial control panels, motor control auxiliary logic, and battery-powered instrumentation where the 2.7 V to 5.5 V rail tolerance simplifies power design across 3.3 V and 5 V systems. When designing with the ATMEGA164P-A15AZ, decouple both VCC pin pairs and program fuse bits carefully - wrong fuse settings on an AVR can lock out ISP access. Verify the 8 MHz clock speed grade against your timing budget before pin-migrating from 16 MHz parts. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical AVR design notes not consolidated in the manufacturer datasheet.

USD $2.68 재고 있음

ATMEGA164P-A15MZ

ATMEGA164P-A15MZ - 16KB AVR MCU 16MHz 44-VQFN | Microchip

The Microchip Technology ATMEGA164P-A15MZ is a high-performance, low-power 8-bit AVR RISC microcontroller with 16 KB of in-system programmable Flash, 512 B EEPROM, and 1 KB SRAM, operating at up to 16 MHz from a 2.7 V to 5.5 V supply and housed in a 44-pin VQFN (7x7 mm) package rated for the extended -40 C to +125 C temperature range. An AVR microcontroller is a single-chip computer built on a modified Harvard RISC architecture that executes most instructions in a single clock cycle. Within the semiconductor taxonomy, the ATmega164P sits at the intersection of the microcontroller, embedded processor, and integrated circuit families: it integrates CPU, non-volatile program memory, data memory, timers, serial interfaces, and analog peripherals on one die, eliminating the external memory bus and glue logic required by a microprocessor-based design. Key features include 16 KB ISP Flash with read-while-write capability, 512 B EEPROM for parameter storage, 1 KB internal SRAM, 32 general-purpose I/O lines, 32 general-purpose working registers, and a real-time counter with a separate oscillator. Three flexible timer/counters with compare modes and PWM, two USARTs, a byte-oriented Two-Wire serial interface, and an 8-channel 10-bit ADC cover the majority of embedded control requirements without external support chips. The device is built on Microchip picoPower technology, which combines multiple sleep modes, a 32 kHz real-time counter, and an on-chip calibrated oscillator to minimize active and standby current. The A15 speed grade is specified for 16 MHz operation across the full automotive temperature range, and the -A15MZ ordering code denotes the automotive-qualified QFN EP (exposed pad) package supplied in tape and reel. Typical applications include automotive body control modules, industrial motor and process control, home appliance control boards, battery-powered instrumentation, and consumer embedded systems. The 44-pin QFN footprint with exposed pad provides a compact, thermally enhanced land pattern for space-constrained control boards. When designing with this device, decouple every VCC pin with a 100 nF ceramic capacitor placed within a few millimeters of the pin, and connect the exposed pad to a solid ground plane for both electrical reference and heat spreading. The AVR505 and AVR527 migration application notes document the pin and code compatibility path from earlier ATmega16/32 devices. 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-reference, and layout decisions.

USD $1.58 재고 있음

ATMEGA164P-B15MZ

ATMEGA164P-B15MZ - 16MHz AVR MCU 16KB Flash | Microchip

The Microchip Technology ATMEGA164P-B15MZ is an 8-bit AVR RISC microcontroller delivering 16 KB of ISP flash memory with read-while-write capability, 512 B EEPROM, and 1 KB SRAM, clocked at up to 16 MHz in a 44-pin VQFN (7x7 mm) exposed-pad package. It is an AEC-Q100 qualified automotive-grade variant rated to 125 C. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle, sitting within the microcontroller hierarchy as a standalone embedded processing unit combining CPU, program memory, data memory, and peripherals on one die. The ATmega family is Microchip's (formerly Atmel's) general-purpose AVR line used across industrial, automotive, and consumer embedded systems. Key features include 32 general-purpose I/O lines, 32 general-purpose working registers, a real-time counter, three flexible timer/counters with compare modes and PWM, two USARTs, a byte-oriented Two-Wire serial interface (I2C-compatible), and an 8-channel 10-bit ADC. The picoPower technology platform provides multiple sleep modes for low average power consumption in battery and energy-harvesting designs. Technical depth: the AVR core couples a single-cycle ALU with flash-based program storage, enabling deterministic execution near 1 MIPS per MHz. The B-suffix revision denotes the second silicon revision per the datasheet history, and the -15AZ/-15MZ speed-grade nomenclature corresponds to the automotive 16 MHz class at 5V operation per distributor listings (3.3V/5V operating range per FindIC data). Typical applications include automotive body and comfort modules, industrial control nodes, sensor interfaces using the 10-bit ADC, and serial communication gateways leveraging the dual USARTs. Design consideration: when migrating from ATmega16/32, consult Microchip application note AVR505 - the reduced crystal driver strength of the low-frequency oscillator means crystal load capacitance and ESR must be re-evaluated. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

USD $1.76 재고 있음

ATMEGA164PA-AN

ATMEGA164PA-AN - 8-Bit AVR MCU 16KB Flash 20MHz | Microchip

The Microchip Technology ATMEGA164PA-AN is a picoPower 8-bit AVR RISC microcontroller with 16 KB ISP flash memory, 512 B EEPROM, 1 KB SRAM, and 32 general-purpose I/O lines, operating up to 20 MHz from 2.5 V to 5.5 V in a 44-pin TQFP (10 x 10 mm) package. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and peripherals into one chip, sitting at the device level of the embedded-systems hierarchy (semiconductor -> integrated circuit -> microcontroller -> embedded system). The AVR family uses a modified Harvard RISC architecture in which most instructions execute in a single clock cycle, and the picoPower technology subfamily adds aggressive sleep-mode and clock-gating features for ultra-low average power consumption. Key features of the ATMEGA164PA-AN include 16 KB of self-programmable ISP flash with read-while-write support, 512 B of EEPROM for non-volatile parameter storage, two USARTs for dual serial channels, a byte-oriented Two-Wire (I2C-compatible) interface, and an SPI interface. Peripherals include three flexible timer/counters with compare modes and PWM outputs, brown-out detection, power-on reset, a watchdog timer, and an 8-channel 10-bit ADC. The AVR core provides 32 general-purpose working registers directly connected to the ALU, enabling single-cycle execution and high code efficiency. The picoPower process technology delivers low active current plus multiple sleep modes (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby), allowing battery-powered designs to reach microamp-level sleep currents. The 8-channel 10-bit ADC supports single-ended and differential conversions with gain stages, suitable for direct sensor interfacing. Typical applications include battery-powered instrumentation, industrial control and sensor nodes, consumer appliances, and motor or LED control systems that leverage the PWM channels and dual USART connectivity. The wide 2.5 V to 5.5 V supply range supports both 3.3 V and 5 V designs. When designing with this device, reserve PB6/PB7 for crystal operation or use the internal RC oscillator to free two I/O pins, and always enable brown-out detection when running from batteries to prevent EEPROM corruption during power collapse. This page synthesizes verified distributor data, drop-in ATmega-family alternatives, and practical design notes not found in the manufacturer datasheet.

USD $1.52 재고 있음

ATMEGA164PA-ANR

ATMEGA164PA-ANR - 8-bit AVR MCU, 16KB Flash, 20MHz | Microchip

The Microchip Technology ATMEGA164PA-ANR is a picoPower 8-bit AVR RISC microcontroller with 16 KB ISP flash memory, 512 B EEPROM, 1 KB SRAM, and 20 MHz maximum CPU clock, housed in a 44-pin TQFP (10x10 mm) surface-mount package supplied on tape and reel. A microcontroller unit (MCU) integrates a processor core, memory, and peripherals on a single silicon die, forming the lowest layer of the embedded-system hierarchy (MCU -> embedded processor -> semiconductor). The AVR architecture executes most instructions in a single clock cycle, delivering throughput approaching 1 MIPS per MHz, which lets system designers trade processing speed directly against power consumption. Key features include 32 general purpose I/O lines, 32 general purpose working registers, an real-time counter, three flexible timer/counters with compare modes and PWM outputs, two USARTs, a byte-oriented Two-Wire serial interface (TWI/I2C), and an 8-channel 10-bit ADC. The picoPower technology family supports multiple sleep modes for battery-powered designs operating from 1.8V to 5.5V. Technical depth: the AVR enhanced RISC core pairs 135 instructions with the 32-register file, giving fast context switching and high code density. In-System Programming (ISP) with read-while-write flash allows firmware updates without removing the device, and debugWIRE in-circuit debugging is accessed through the reset line. Typical applications include industrial automation and sensor nodes, consumer appliances and HVAC control, and battery-powered metering where the picoPower sleep modes minimize average current draw. Design consideration: decouple all VCC and AVCC pins with 0.1 uF ceramics and keep the ADC analog supply separate from digital switching noise to preserve 10-bit ADC accuracy. This page synthesizes distributor pricing as of 2026-09-16, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

USD $1.10 재고 있음

ATMEGA164PA-AU

ATMEGA164PA-AU - 8-bit AVR MCU, 16KB Flash, 20MHz | Microchip

The Microchip ATMEGA164PA-AU is a picoPower 8-bit AVR RISC microcontroller with 16 KB ISP FLASH memory, 512 B EEPROM, 1 KB SRAM, and up to 20 MIPS throughput at 20 MHz, housed in a 44-pin TQFP (10x10 mm) package. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals, forming the lowest tier of the embedded computing hierarchy (embedded ICs -> microcontrollers -> 8-bit MCUs). The AVR family, originally developed by Atmel and now part of Microchip Technology, uses a Harvard architecture with single-cycle instruction execution, making 8-bit AVRs a benchmark for efficient, deterministic embedded control. Key features of the ATMEGA164PA-AU include 32 general purpose I/O lines, three flexible 16/8-bit timer/counters with compare modes and PWM, two USARTs, a byte-oriented Two-Wire Interface (TWI/I2C), an 8-channel 10-bit ADC, and picoPower technology for sub-uA sleep currents. The device operates from 1.8V to 5.5V across the full 20 MHz frequency range. Technically, the AVR core executes 131 powerful instructions, most in a single clock cycle, with 32 general purpose working registers directly connected to the ALU. An on-chip 2-cycle hardware multiplier accelerates DSP-style math. Self-programmable ISP FLASH with read-while-write support enables in-field firmware updates without an external programmer. Typical applications include industrial control and sensing nodes, consumer appliances, battery-powered metering, and hobby/educational platforms compatible with the Arduino ecosystem. Design consideration: choose the internal 8 MHz RC oscillator for cost-sensitive designs and reserve the external 20 MHz crystal for timing-critical UART or precision ADC work; always decouple AVCC separately from VCC for best ADC accuracy. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

USD $2.75 재고 있음

ATMEGA164PA-AUR

ATMEGA164PA-AUR - 8-Bit AVR MCU 16KB Flash 20MHz | Microchip

The Microchip Technology ATMEGA164PA-AUR is a picoPower 8-bit AVR RISC microcontroller with 16 KB in-system programmable Flash, 512 B EEPROM, 1 KB SRAM, 32 general-purpose I/O lines, and a 20 MHz maximum clock, supplied in a 44-pin TQFP (10x10 mm) package. It operates from 1.8 V to 5.5 V and is rated for the industrial temperature range of -40 C to +85 C. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, data memory, and peripheral blocks such as timers, serial interfaces, and analog-to-digital converters. Within the semiconductor taxonomy, the ATmega164PA sits at 8-bit MCU -> microcontroller -> embedded processor -> integrated circuit, and it is the 16 KB member of the pin-compatible ATmega164A/324A/644A/1284 family. Key features include 16 KB Flash with read-while-write support, 512 B EEPROM for parameter storage, 1 KB SRAM, 32 general-purpose working registers, two USARTs, a byte-oriented Two-Wire serial interface (TWI/I2C), an 8-channel 10-bit ADC, three flexible timer/counters with compare modes and PWM, and a real-time counter with a separate oscillator. The picoPower architecture delivers near 1 MIPS per MHz throughput, allowing the designer to trade processing speed against power consumption. The device uses the AVR enhanced RISC core with 131 instructions, most executing in a single clock cycle. In-system programming via SPI and JTAG (with the debugWIRE and JTAG ICE interfaces) supports field firmware updates and in-circuit debugging. The 44-pin TQFP footprint is shared across the ATmega164A/PA, 324A/PA, 644A/PA and 1284/1284P family, so a design can migrate to more Flash without changing the PCB. Typical applications include industrial control and factory automation nodes, consumer appliance control boards, battery-powered portable instruments, motor control front ends, and legacy 8-bit designs migrating from the ATmega16/32. The wide 1.8 V to 5.5 V supply range and 32 I/O lines make it suitable for mixed 3.3 V and 5 V systems. When designing with this device, decouple every VCC/AVCC pin with a 100 nF ceramic capacitor placed close to the pin, and keep the AREF and AVCC filtering separate from digital supply noise to preserve ADC accuracy. The AUR suffix denotes tape-and-reel packaging for automated assembly. 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, replacement, and layout decisions.

USD $2.05 재고 있음

ATMEGA164PA-CU

ATMEGA164PA-CU - 8-bit AVR MCU 20MHz 16KB Flash 49-VFBGA | Microchip

The Microchip Technology ATMEGA164PA-CU is a picoPower 8-bit AVR RISC microcontroller with 16 KB ISP flash memory, 512 B EEPROM, 1 KB SRAM, and a maximum clock speed of 20 MHz, housed in a 49-ball VFBGA (5x5 mm) package. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, sitting at the lowest level of the embedded-system hierarchy (MCU -> microcontroller -> embedded processor -> semiconductor). The AVR family from Atmel, now Microchip, pioneered single-cycle RISC execution, allowing most of its 133 instructions to complete in one clock cycle. Key features include 32 general purpose I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes and PWM, two USARTs, and a byte-oriented Two-Wire serial interface (I2C-compatible). The picoPower technology delivers industry-leading low-power consumption for battery-operated designs, with multiple sleep modes and a real-time counter operating in standby. Technically, the device uses an advanced RISC Harvard architecture with separate program and data buses, supporting read-while-write flash operation for in-system programming without halting execution. An 8-channel 10-bit ADC enables direct analog sensor interfacing, while the enhanced PWM timers suit motor control and LED dimming. Typical applications include battery-powered sensor nodes, industrial control panels, consumer appliances, and HID devices, where the 49-VFBGA footprint saves board space in compact products. The two USARTs also support multi-drop communication in metering designs. When designing with this MCU, note that the 5x5 mm BGA ball pitch requires controlled-impedance PCB fabrication; consider the TQFP variant (ATMEGA164PA-AUR) for hand-assembly prototyping, as both share the same die and firmware. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

USD $2.15 재고 있음

ATMEGA164PA-CUR

ATMEGA164PA-CUR - AVR 8-Bit MCU 20MHz 16KB Flash | Microchip

The Microchip Technology ATMEGA164PA-CUR is a picoPower AVR 8-bit RISC microcontroller delivering 20 MHz clock speed, 16 KB ISP flash memory, and 1 KB SRAM in a 49-ball VFBGA (5x5 mm) package. An 8-bit AVR microcontroller is a single-chip computer integrating a RISC CPU core, program flash, SRAM, EEPROM, and peripheral functions such as timers, USARTs, and ADCs on one die. Within the power-management and embedded-processing hierarchy, the ATmega family sits under the AVR MCU line from Atmel, now Microchip Technology, and targets cost- and power-sensitive embedded control. Key features include 16 KB of in-system programmable flash with read-while-write capability, 512 B EEPROM, 32 general purpose I/O lines, and 32 general purpose working registers. The AVR core executes most of its 133 powerful instructions in a single clock cycle, achieving throughput approaching 1 MIPS per MHz so designers can optimize power consumption versus processing speed. Technical depth comes from the picoPower technology platform, which provides multiple sleep modes and a real-time counter for ultra-low standby current. Connectivity peripherals include two USARTs, a byte-oriented Two-Wire serial interface (I2C-compatible), an SPI port, and an 8-channel 10-bit ADC, all clocked from an internal or external source up to 20 MHz. Typical applications include battery-powered sensor nodes, portable consumer devices, and industrial control boards where the compact 5x5 mm VFBGA footprint minimizes board area and the picoPower modes extend battery life. A key design consideration: the -CU/-CUR VFBGA option sacrifices some through-hole accessibility versus TQFP parts, so plan test points and programming pads during layout. This page synthesizes distributor availability, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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