Microcontroladores

Produtos (18688)

ATMEGA48A-MMH - 8-Bit AVR MCU, 4KB Flash, 20MHz | Microchip
ATMEGA48A-MMH

ATMEGA48A-MMH - 8-Bit AVR MCU, 4KB Flash, 20MHz | Microchip

The Microchip Technology ATMEGA48A-MMH is an 8-bit AVR RISC microcontroller with 4KB of ISP Flash memory, 256B EEPROM, 512B SRAM, and 23 general-purpose I/O lines, executing at up to 20MHz from a 4.5V to 5.5V supply in a 28-pin VQFN (4x4 mm, 1 mm height, 0.45 mm pitch) package with exposed pad. An AVR ATmega microcontroller is a Harvard-architecture 8-bit MCU in the broader product hierarchy of microcontroller unit (MCU) -> embedded processor -> semiconductor integrated circuit. AVR cores use a load/store architecture with 32 general-purpose working registers directly connected to the ALU, allowing most of the 131 instructions to execute in a single clock cycle, which yields throughput of up to 20 MIPS at 20MHz while minimizing power consumption. Key features include 4KB self-programmable ISP Flash organized as 2K x 16 with 10,000 write cycles, an on-chip 8-channel 10-bit ADC, three flexible timer/counters with compare modes, and a byte-oriented two-wire serial interface (I2C-compatible TWI) alongside SPI and USART. The device operates from 4.5V to 5.5V at 0-20MHz (industrial temperature range) and supports five power-saving sleep modes with an on-chip brown-out detector and power-on reset. The ATMEGA48A implements the advanced RISC AVR architecture with hardware multiplier, nested interrupt controller, and in-system programmability via SPI. DebugWIRE on-chip debugging is provided through the RESET pin, eliminating the need for a dedicated JTAG port in cost-sensitive designs. The MMH suffix denotes the halogen-free, green 28-VQFN package qualified for industrial temperature. Typical applications include industrial control and automation nodes, consumer appliances, HVAC and motor-control subsystems, and battery-charged handheld instruments where a compact 4x4 mm footprint and 5V ADC accuracy are required. Design consideration: at 5V operation the full 20MHz clock range is available, but below 4.5V the maximum safe frequency derates, so match the supply rail to the intended clock speed. This page synthesizes distributor pricing, drop-in alternatives, FAQ content, and practical design notes not found in the manufacturer datasheet.

USD $0,86 Em estoque
ATMEGA48A-MMHR - 4KB AVR MCU, 20MHz, VQFN-28 | Microchip
ATMEGA48A-MMHR

ATMEGA48A-MMHR - 4KB AVR MCU, 20MHz, VQFN-28 | Microchip

The Microchip Technology ATMEGA48A-MMHR is a high-performance, low-power 8-bit AVR RISC microcontroller with 4 KB of ISP Flash memory (2K x 16), 256 B EEPROM, 512 B SRAM, and 23 general-purpose I/O lines, executing at up to 20 MHz from a 28-pad VQFN (4x4 mm, 0.45 mm pitch, 1 mm height) surface-mount package. An 8-bit AVR microcontroller is a single-chip computer built around an advanced RISC core in which most of the 131 instructions execute in a single clock cycle. Within the power-management hierarchy, it integrates the CPU, program memory, data memory, timers, and peripherals into one semiconductor device, replacing multi-chip processor-plus-memory designs in cost-sensitive embedded systems. Key differentiating features include 32 general-purpose working registers directly connected to the ALU for single-cycle execution, three flexible timer/counters with compare modes, and In-System Programmable (ISP) Flash that allows firmware updates on the assembled PCB. The 4 KB self-programmable Flash, organized for both code and data storage, suits compact firmware images typical of sensor nodes and small appliances. Architecturally, the AVR core couples a load-store Harvard memory structure with the large register file, achieving throughput of up to 20 MIPS at 20 MHz while remaining low power. Hardware multiply, interrupt-driven peripherals, and programmable watchdog complete the core subsystem, and the A-grade silicon is a drop-in functional replacement for the original ATmega48/88/168 family per Microchip application note AVR532. Typical applications include consumer appliance control, small industrial sensor nodes, battery-powered handheld devices, and lighting or HVAC control boards where a compact 4x4 mm footprint and low cost dominate. A key design consideration: at 20 MHz the part requires a 4.5 V to 5.5 V supply for full-speed operation, while lower clock frequencies permit reduced supply voltage, so verify the frequency-versus-voltage derating curve in the datasheet before fixing the rail. This page synthesizes distributor pricing context, verified drop-in alternatives within the ATmega family, and practical design notes not consolidated in the manufacturer datasheet. Pricing below is as of 2026-09-18.

Cotação Em estoque
ATMEGA48A-PU - 8-bit AVR MCU 4KB Flash 20MHz DIP-28 | Microchip
ATMEGA48A-PU

ATMEGA48A-PU - 8-bit AVR MCU 4KB Flash 20MHz DIP-28 | Microchip

The Microchip Technology ATMEGA48A-PU is an 8-bit AVR RISC microcontroller with 4KB ISP Flash memory, 256B EEPROM, 512B SRAM, and 23 general-purpose I/O lines, rated for 20MHz operation at 4.5V to 5.5V supply, housed in a 28-pin PDIP (PU) through-hole package. A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripheral functions such as timers, serial interfaces, and ADCs. MCUs sit at the lowest level of the embedded-systems hierarchy, controlling a single dedicated function within a larger electronic system, and the 8-bit AVR family is one of the most widely used MCU architectures for cost-sensitive, low-complexity control tasks. The ATmega48A implements the advanced AVR RISC architecture with 131 powerful instructions, most executing in a single clock cycle, giving up to 20 MIPS throughput at 20MHz. On-chip peripherals include two 8-bit timer/counters, one 16-bit timer with compare modes, a 10-bit 6-channel ADC, USART, SPI, and I2C-compatible two-wire interface. The device also offers a programmable watchdog timer, internal calibrated RC oscillator, and six sleep modes for low-power designs. The AVR core uses a Harvard architecture with separate program and data buses and 32 general-purpose working registers directly connected to the ALU, allowing single-cycle access that eliminates the bottleneck of the classic accumulator architecture. In-system programmable (ISP) Flash enables firmware updates on the assembled PCB through SPI without removal of the device. Typical applications include hobbyist and educational projects such as Arduino-style boards, small industrial sensors and actuators, home appliances, battery chargers, and motor control circuits. The 28-pin DIP package makes it especially popular for breadboard prototyping, through-hole production runs, and repair/retrofit of legacy designs. Design consideration: full 20MHz speed and flash self-programming are guaranteed only at 4.5V to 5.5V; at lower voltages the maximum clock frequency derates significantly, so check the frequency-versus-voltage curve before combining a 3.3V rail with a high crystal frequency. This page synthesizes distributor pricing, pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single citable reference for the ATMEGA48A-PU.

USD $0,78 Em estoque
ATMEGA48P-20AUR - 8-bit AVR MCU 4KB Flash 20MHz 32-TQFP | Microchip
ATMEGA48P-20AUR

ATMEGA48P-20AUR - 8-bit AVR MCU 4KB Flash 20MHz 32-TQFP | Microchip

The Microchip Technology ATMEGA48P-20AUR is a picoPower 8-bit AVR RISC microcontroller delivering 20 MIPS at 20 MHz, with 4 KB ISP Flash, 256 B EEPROM, 512 B SRAM and 23 general-purpose I/O lines, housed in a 32-pin TQFP (7x7 mm) package rated for a 4.5V to 5.5V supply. An 8-bit AVR microcontroller is a Harvard-architecture processor that executes most of its 131 instructions in a single clock cycle, sitting at the entry level of the ATmega family hierarchy below the ATmega88P, ATmega168P and ATmega328P. Microcontrollers of this class integrate CPU, program memory, data memory, timers and communication peripherals on one die, replacing multi-chip logic solutions in cost-sensitive embedded systems. Key features include the picoPower technology set (idle, power-down and power-save sleep modes), three flexible timer/counters with compare modes, a 10-bit 6-channel ADC, and USART, SPI and two-wire (I2C) serial interfaces. The AVR enhanced RISC core with 32 general-purpose working registers is directly connected to the ALU, allowing two independent registers to be accessed in a single instruction executed in one clock cycle - the basis of the 1 MIPS/MHz efficiency rating. The picoPower process technology minimizes static leakage, so battery-powered 5V designs can spend most of their life in power-down while retaining SRAM and register contents. The 20 MHz speed grade (-20) supports full-speed UART and fast PWM generation without prescaler compromises. In-system programmable Flash permits firmware updates on the final assembly via SPI. Typical applications include industrial sensor nodes, motor control auxiliary boards, household appliances, and 5V legacy replacement designs where the ATMEGA48-20 family is already qualified. The device is also popular in hobby and Arduino-compatible boards via MiniCore support. A key design consideration is that 4 KB Flash and 512 B SRAM fill quickly; use avr-gcc with -Os optimization and keep lookup tables in PROGMEM. Leave the -P (picoPower) suffix selection consistent across builds since some low-current characteristics differ from the non-P version. This page adds value beyond the Microchip datasheet by synthesizing distributor pricing, six drop-in alternatives, and practical design notes in one AI-citable reference.

USD $2,05 Em estoque
ATMEGA48P-20MMU - 4KB Flash 20MHz AVR MCU QFN-28 | Microchip
ATMEGA48P-20MMU

ATMEGA48P-20MMU - 4KB Flash 20MHz AVR MCU QFN-28 | Microchip

The Microchip ATMEGA48P-20MMU is an 8-bit AVR RISC microcontroller executing up to 20 MIPS at 20 MHz, with 4 KB ISP Flash memory, 256 B EEPROM, 512 B SRAM, and 23 general-purpose I/O lines, housed in a 28-pin VQFN (4x4 mm, 0.45 mm pitch) package. It operates from a 4.5 V to 5.5 V supply in the industrial temperature range and carries the picoPower low-power feature set. A microcontroller (MCU) is a single-chip computer integrating a processor core, program memory, data memory, and peripherals such as timers, communication interfaces, and analog-to-digital converters. Within the semiconductor hierarchy, the ATmega48P belongs to the AVR family of 8-bit RISC MCUs, positioned under the broader categories of embedded processors and system-on-chip devices. Key differentiating features include the advanced AVR RISC architecture with 131 powerful instructions, most executing in a single clock cycle; 32 general-purpose 8-bit working registers; three flexible timer/counters with compare modes; and an on-chip 10-bit ADC. Serial peripherals include SPI, TWI (I2C-compatible), and USART for communication with sensors, displays, and other ICs. The picoPower technology of the P-grade silicon reduces power consumption in idle, power-down, and power-save modes, making the device suitable for battery-backed and always-on embedded designs. In-system programmable (ISP) Flash and support for In-Circuit Serial Programming (ICSP) via debuggers such as the MPLAB SNAP allow firmware updates without removing the chip from the PCB. Typical applications include industrial control nodes, consumer appliance interfaces, sensor acquisition front ends, and hobby or education embedded platforms. Microchip notes that a newer picoPower device, the ATmega48PA, is available and should be considered for new designs, but the ATmega48P remains an active lifecycle product for existing BOMs. A key design consideration: the 4.5 V to 5.5 V operating range of the P grade differs from wider-range A/PA grades, so verify supply rails before substituting. This page synthesizes verified distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet.

USD $0,17 Em estoque
ATMEGA48P-20MUR - 8-bit AVR MCU 20MHz 4KB Flash | Microchip
ATMEGA48P-20MUR

ATMEGA48P-20MUR - 8-bit AVR MCU 20MHz 4KB Flash | Microchip

The Microchip Technology ATMEGA48P-20MUR is an 8-bit AVR RISC picoPower microcontroller delivering 20 MHz maximum clock frequency, 4 KB ISP Flash memory, 256 B EEPROM, and 512 B SRAM in a 32-pad VQFN (5x5 mm) package. It operates from a 4.5 V to 5.5 V supply at full 20 MHz speed and is rated for the industrial temperature range. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, sitting at the top of the embedded control hierarchy that spans from discrete logic to full system-on-chip devices. The ATmega family, originally developed by Atmel and now manufactured by Microchip Technology, is one of the most widely deployed 8-bit MCU families in the industry, using the AVR enhanced RISC architecture with 131 powerful instructions, most executing in a single clock cycle. Key features include 23 general-purpose I/O lines, three flexible timer/counters with compare modes, a 10-bit ADC, SPI and TWI (I2C) serial interfaces, and internal calibrated RC oscillator options that reduce external component count. The picoPower technology enables low-power sleep modes for battery-sensitive designs. The device offers in-system programmable (ISP) Flash and is supported by Microchip MPLAB tools, including the MPLAB SNAP debugger with In-Circuit Serial Programming (ICSP) via two I/O pins and the reset line. The 32-VQFN (5x5 mm), 0.45 mm pitch, 1 mm height green package suits compact, space-constrained industrial boards. Typical applications include industrial automation sensor nodes, consumer appliance control, hobby and maker boards, and battery-powered metering products where a 5 V rail and moderate memory footprint are sufficient. When designing with this part, note that at 20 MHz operation the supply must stay within 4.5 V to 5.5 V; lower voltage operation requires derating the clock frequency. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

USD $1,06 Em estoque
ATMEGA48P-20PU - 8-bit AVR MCU 4KB Flash 20MHz PDIP-28 | Microchip
ATMEGA48P-20PU

ATMEGA48P-20PU - 8-bit AVR MCU 4KB Flash 20MHz PDIP-28 | Microchip

The Microchip Technology ATMEGA48P-20PU is an 8-bit AVR RISC picoPower microcontroller with 4 KB ISP Flash memory, 256 B EEPROM, 512 B SRAM, 23 general-purpose I/O lines and a maximum clock frequency of 20 MHz, housed in a 28-pin PDIP (DIP-28) through-hole package. A microcontroller (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and programmable peripherals on one chip. The 8-bit AVR family sits within Microchip's broader microcontroller portfolio and is widely used in embedded systems, education, and hobbyist electronics because of its simple architecture, free toolchains, and broad documentation. Key features of the ATMEGA48P-20PU include an AVR enhanced RISC core executing most instructions in a single clock cycle (131 instructions, 32 general-purpose working registers), three flexible timer/counters with compare modes, an internal oscillator, a 10-bit 8-channel ADC, and a UART with bitrate generator plus USI for SPI/I2C-style communication. The picoPower technology provides six software-selectable power-saving modes, making it attractive for battery-powered designs. Architecturally, the device uses Harvard memory separation between program and data buses, and in-system self-programmable Flash allows firmware updates over SPI using an ISP programmer. Operating voltage spans 1.8 V to 5.5 V, enabling both 3.3 V and 5 V designs at up to 20 MHz (with speed derating below 5 V). Typical applications include industrial control, home automation sensors, small appliances, motor-adjacent control loops, and educational prototypes. The through-hole DIP-28 package is especially convenient for breadboarding and low-volume hand assembly. Design consideration: choose the clock source carefully - the internal 8 MHz RC oscillator reduces BOM cost, while an external crystal improves UART timing accuracy. This page synthesizes distributor pricing, drop-in alternatives across the ATmega48/88/168/328 family, and practical design notes not found in the manufacturer datasheet.

USD $1,05 Em estoque
ATMEGA48PA-15AZ - 8-bit AVR MCU 4KB Flash 32-TQFP | Microchip
ATMEGA48PA-15AZ

ATMEGA48PA-15AZ - 8-bit AVR MCU 4KB Flash 32-TQFP | Microchip

The Microchip Technology ATMEGA48PA-15AZ is an 8-bit AVR ATmega microcontroller with 4KB (2K x 16) of in-system programmable Flash, 512 B of SRAM, 256 B of EEPROM, and 23 programmable I/O lines, executing at up to 16 MHz in a 32-pin TQFP (7x7 mm) package. An 8-bit microcontroller is an integrated circuit that combines a CPU core, program memory, data memory, and peripherals on a single chip, forming the lowest tier of the embedded processing hierarchy (MCU -> embedded processor -> semiconductor). The ATmega48PA belongs to the AVR RISC family from Microchip (formerly Atmel), a widely deployed architecture in industrial control, automotive body electronics, and consumer products. Key features include 131 powerful instructions with mostly single-cycle execution, up to 20 MIPS throughput at 16 MHz, and picoPower technology that minimizes active and sleep-mode current. The PA suffix denotes the picoPower, extended-temperature (up to +125 C) variant, and the -15AZ marking indicates AEC-Q100 automotive qualification. Operating voltage spans 2.5 V to 5.5 V per FindIC and distributor data, with an internal RC oscillator eliminating the need for an external crystal in many designs. Technically, the device provides one 8-bit and one 16-bit timer with PWM channels, a 10-bit ADC with 6 multiplexed external channels plus 2 internal channels, USART, SPI, and two-wire (I2C) interfaces, plus an analog comparator. In-system self-programmable Flash enables field firmware updates through the SPI-based ICSP interface using two device I/O pins and reset. Typical applications include automotive body modules, sensor nodes, motor control, HVAC, and industrial automation where moderate memory and low power matter. Design tip: budget the 4KB Flash carefully and reserve roughly 256 bytes for the bootloader region if field updates are planned. This page synthesizes distributor pricing, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet.

USD $0,95 Em estoque
ATMEGA48PA-15MZ - 4KB AVR MCU, 16MHz, 32-QFN | Microchip
ATMEGA48PA-15MZ

ATMEGA48PA-15MZ - 4KB AVR MCU, 16MHz, 32-QFN | Microchip

The Microchip Technology ATMEGA48PA-15MZ is a high-performance, low-power Atmel AVR 8-bit RISC microcontroller with 4KB of In-System Programmable (ISP) Flash memory, 512B of SRAM, and 256B of EEPROM, executing up to 16 MIPS at 16MHz in a 32-pad QFN/MLF package rated for the -40C to +125C automotive temperature range. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that combines program Flash, data SRAM, and peripheral functions on a single chip. In the power-management hierarchy of embedded systems, the MCU sits at the top of the signal chain, coordinating sensors, actuators, and communication interfaces. The ATmega family is one of the most widely deployed 8-bit MCU platforms, famous as the heart of Arduino boards. Key features include the Advanced RISC architecture with 131 powerful instructions, most executed in a single clock cycle, delivering up to 16 MIPS throughput at 16MHz. The picoPower technology enables sub-microamp sleep currents, making it suitable for battery-powered designs. Peripherals include one 8-bit and one 16-bit timer with PWM, an 8-channel 10-bit ADC, USI, USART, and a 2-wire serial interface (I2C-compatible). The -15Z suffix denotes the 16MHz speed grade, MLF package, and RoHS-compliant lead-free finish. The ATMEGA48PA achieves low active power through an optimized AVR core and clock-gating, with software-selectable sleep modes including Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby. In-System Programming via the SPI interface and debugWIRE on-chip debugging through the RESET pin simplify development; a two-pin debug connection is sufficient for prototype bring-up. Typical applications include automotive body and comfort modules, sensor nodes, motor control, industrial automation, and battery-powered consumer devices where the -40C to +125C grade and 1.8V to 5.5V supply range provide design margin. Design consideration: enable brown-out detection and use the internal 8MHz RC oscillator when crystal cost or layout area must be minimized, accepting reduced clock accuracy. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.

USD $0,68 Em estoque
ATMEGA48PA-AN - 8-Bit AVR 20MHz 4KB MCU | Microchip | TQFP-32
ATMEGA48PA-AN

ATMEGA48PA-AN - 8-Bit AVR 20MHz 4KB MCU | Microchip | TQFP-32

The Microchip Technology ATMEGA48PA-AN is an 8-bit AVR RISC microcontroller with 4 KB of in-system programmable Flash, 256 bytes of EEPROM, and 512 bytes of SRAM, running at up to 20 MHz and housed in a 32-pin TQFP (7x7 mm) package. It operates from a 1.8 V to 5.5 V supply and provides 23 general-purpose I/O lines. An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals such as timers, serial interfaces, and analog-to-digital converters. Within the product hierarchy, the ATmega48PA sits in the AVR 8-bit MCU family, which belongs to the broader class of embedded microcontrollers, a subset of semiconductor integrated circuits. The picoPower architecture is designed for battery-powered and always-on embedded systems where active and sleep currents directly determine battery life. Key features include 4 KB ISP Flash with 10,000 write/erase cycles, 256 bytes EEPROM with 100,000 write cycles, 512 bytes SRAM, 23 programmable I/O lines, and a 10-bit ADC. Three flexible timer/counters with compare and PWM modes, a USART, SPI, and TWI (I2C) interface cover most embedded communication needs. The device supports 131 powerful instructions, most executing in a single clock cycle, achieving up to 20 MIPS throughput at 20 MHz. The ATmega48PA uses Microchip's picoPower technology, which reduces active current to approximately 0.2 mA at 1 MHz and 1.8 V, and power-down current to below 0.1 uA. The 10-bit successive-approximation ADC includes a programmable gain stage and internal temperature sensor, eliminating external analog front-end components in sensor nodes. Typical applications include battery-powered sensor nodes, industrial control panels, consumer appliance controllers, and low-cost motor control. The wide 1.8 V to 5.5 V supply range allows direct operation from single-cell Li-Ion or 3xAA battery packs without a boost converter. When designing with this device, decouple every VCC pin with a 100 nF ceramic capacitor placed within a few millimeters of the pin, and keep the AVCC filter inductor close to the analog supply pin. The TQFP-32 package requires careful thermal relief on the ground pads during reflow. 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 and second-sourcing decisions.

USD $0,83 Em estoque
ATMEGA48PA-ANR - 8-Bit AVR MCU 4KB Flash 20MHz | Microchip
ATMEGA48PA-ANR

ATMEGA48PA-ANR - 8-Bit AVR MCU 4KB Flash 20MHz | Microchip

The Microchip ATMEGA48PA-ANR is a high-performance, low-power 8-bit AVR RISC microcontroller with 4 KB of ISP Flash memory, 256 B of EEPROM, 512 B of SRAM, and 23 general-purpose I/O lines, executing up to 20 MIPS at 20 MHz in a 32-pin TQFP (7x7 mm) package. This picoPower device is the tape-and-reel ordering code for automated assembly. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that fetches and executes most of its 131 instructions in a single clock cycle. In the embedded system hierarchy, the ATmega family sits in the general-purpose MCU tier below the AVR DA/DB series and above the ATtiny line, and it integrates flash program memory, SRAM data memory, EEPROM, timers, USART, SPI, I2C (TWI), and a 10-bit ADC on a single silicon die. Key features include the picoPower technology for ultra-low sleep currents, an advanced RISC core with 32 general-purpose working registers, three flexible timer/counters with compare modes, a 10-bit ADC with 8 multiplexed single-ended channels, and a programmable serial USART plus SPI and two-wire (I2C) interfaces. The device operates over 1.8V to 5.5V and tolerates industrial temperatures. Architecturally, the ATmega48PA combines single-cycle ALU execution with in-system self-programmable flash, enabling field firmware updates via the ICSP interface or a bootloader. Power management modes (idle, ADC noise reduction, power-save, power-down, standby) let designers scale consumption from hundreds of microamps in active mode down to sub-microamp levels in power-down, which is why the picoPower variant suits battery-powered designs. Typical applications include battery-powered sensor nodes, small home-automation and IoT controllers, industrial monitoring boards, and motor-control or LED-control auxiliaries where 4 KB of flash and a 20 MHz clock are sufficient. Design consideration: keep the flash budget tight - at 4 KB there is little room for floating-point libraries, so prefer 8-bit fixed-point arithmetic and the supplied Atmel START/Microchip MPLAB X code examples to minimize code size. This page synthesizes distributor pricing, drop-in family alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet, verified as of 2026-09-18.

USD $0,98 Em estoque
ATMEGA48PA-AU - 8-Bit AVR 20MHz 4KB Flash MCU | Microchip
ATMEGA48PA-AU

ATMEGA48PA-AU - 8-Bit AVR 20MHz 4KB Flash MCU | Microchip

The Microchip Technology ATMEGA48PA-AU is an 8-bit AVR RISC microcontroller with 4 KB of in-system programmable Flash, 256 bytes of EEPROM, and 512 bytes of SRAM, running at up to 20 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 8-bit microcontroller is a single-chip computer that integrates a CPU core, program memory, data memory, and peripherals such as timers, serial interfaces, and analog-to-digital converters. Within the semiconductor taxonomy, the ATmega48PA sits in the AVR family, which belongs to the 8-bit microcontroller class, itself a subset of embedded processors and microcontrollers. The picoPower architecture is designed for battery-powered and always-on embedded systems where deterministic real-time response matters more than raw throughput. Key features include 4 KB ISP Flash with 10,000 write/erase cycles, 256 bytes EEPROM with 100,000 write cycles, 512 bytes SRAM, 23 programmable I/O lines, and three flexible timer/counters with compare and PWM modes. The device integrates a 10-bit ADC with 8 channels, a programmable watchdog timer, and internal calibrated RC oscillator, reducing external component count. The ATmega48PA uses the AVR enhanced RISC architecture with 131 powerful instructions, most executing in a single clock cycle, achieving up to 20 MIPS at 20 MHz. The picoPower technology delivers sub-1 uA power-down current, making it suitable for battery-operated sensor nodes and portable instruments. Typical applications include industrial control panels, consumer appliance control, battery management, sensor signal conditioning, and low-power IoT edge nodes. The 32-pin TQFP footprint is shared across the ATmega48PA/88PA/168PA/328P family, allowing firmware and PCB reuse with memory scaling. When designing with this device, decouple every VCC pin with a 100 nF ceramic capacitor placed close to the pin, and use a 10 uF bulk capacitor on the board rail. The internal 8 MHz RC oscillator can eliminate the external crystal in cost-sensitive designs, but external crystals are recommended when UART baud accuracy or USB timing is critical. 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 $1,38 Em estoque
ATMEGA48PA-AUR - 8-Bit AVR MCU 4KB Flash 20MHz | Microchip
ATMEGA48PA-AUR

ATMEGA48PA-AUR - 8-Bit AVR MCU 4KB Flash 20MHz | Microchip

The Microchip Technology ATMEGA48PA-AUR is an 8-bit AVR RISC microcontroller with 4 KB in-system programmable Flash, 256 B EEPROM, and 512 B SRAM, running at up to 20 MHz and housed in a 32-pin TQFP (7x7 mm) package. It delivers throughput approaching 1 MIPS per MHz while operating from 1.8 V to 5.5 V, making it a direct fit for low-power embedded control designs. An AVR microcontroller is a Harvard-architecture 8-bit MCU that executes most instructions in a single clock cycle using 32 general-purpose working registers. Within the product taxonomy, the ATmega48PA sits under 8-bit microcontrollers, which fall under microcontrollers, which are a subset of integrated circuits. The picoPower design methodology allows the device to retain SRAM contents, keep the real-time counter running, and wake on I2C address match while drawing very low current, which is why AVR parts remain a default choice for battery-powered sensing nodes. The ATMEGA48PA-AUR integrates 23 general-purpose I/O lines, three flexible timer/counters with compare modes, a 6-channel 10-bit ADC, a programmable watchdog timer with separate on-chip oscillator, an on-chip analog comparator, and a byte-oriented two-wire serial interface compatible with I2C. The internal calibrated oscillator removes the need for an external crystal in many designs, and the programmable brown-out detection protects Flash writes during supply dips. Architecturally, the device uses the enhanced RISC core with 131 powerful instructions, most executing in a single clock cycle, plus 32 x 8 general-purpose registers that eliminate accumulator bottlenecks. The 4 KB Flash is rated for 10,000 write/erase cycles, the 256 B EEPROM for 100,000 cycles, and both retain data for 20 years at 85 C, giving designers a self-contained non-volatile data store without external memory. Typical applications include industrial sensor nodes, consumer appliance control panels, battery-powered IoT endpoints, motor control front-ends, and legacy AVR socket upgrades. The 32-TQFP footprint matches the ATmega48PA/88PA/168PA family, so firmware can be ported across memory densities without PCB changes. A key design consideration is decoupling: place a 100 nF ceramic capacitor directly at each VCC pin and a 10 uF bulk capacitor nearby, because the AVR core draws fast current transients during Flash access. The AVRISP mkII or Atmel-ICE programmer connects through the SPI-based ISP header for in-system programming. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not consolidated in the manufacturer datasheet, giving engineers a single reference for selection, cross-reference, and layout decisions.

USD $1,72 Em estoque
ATMEGA48PA-CCU - 4KB AVR MCU 20MHz UFBGA-32 | Microchip
ATMEGA48PA-CCU

ATMEGA48PA-CCU - 4KB AVR MCU 20MHz UFBGA-32 | Microchip

The Microchip Technology ATMEGA48PA-CCU (originally Atmel) is a high-performance, low-power AVR 8-bit RISC microcontroller with 4KB of in-system programmable Flash memory, 512B of SRAM, and 256B of EEPROM, executing at up to 20 MHz and housed in a 32-ball UFBGA package measuring 4 x 4 mm with 0.45 mm ball pitch and 1 mm height. It operates from 1.8V to 5.5V, making it suitable for both 3.3V and 5V systems. A microcontroller unit (MCU) integrates a processor core, memory, and programmable peripherals on a single silicon die, sitting at the lowest level of the embedded-system hierarchy above bare logic ICs. The AVR ATmega family uses an advanced RISC architecture with 131 mostly single-cycle instructions, allowing one MIPS per MHz of clock speed. Key features of the ATMEGA48PA include two 8-bit timers and one 16-bit timer, a 10-bit ADC with up to 8 channels (6 in the 32-ball package configuration), an analog comparator, USART, SPI, and two-wire (I2C) serial interfaces, plus a programmable Watchdog Timer with its own oscillator. The picoPower technology of the PA variant delivers very low sleep-mode currents for battery-powered designs. Architecturally, the AVR core uses a Harvard structure with separate program and data buses; Flash program memory is self-programmable for boot-loader applications, and in-circuit debugging and In-Circuit Serial Programming (ICSP) are supported through two I/O pins plus reset. Typical applications include battery-powered sensor nodes, portable consumer devices, industrial control boards, and compact IoT end nodes where the 4 x 4 mm UFBGA footprint minimizes board area. Design consideration: the fine 0.45 mm ball pitch requires precise PCB fabrication and X-ray or AOI inspection; plan reflow profiling and keepout areas carefully, since rework of UFBGA devices is difficult. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

USD $0,85 Em estoque
ATMEGA48PA-CCUR - 4KB Flash AVR MCU 20MHz 32-UFBGA | Microchip
ATMEGA48PA-CCUR

ATMEGA48PA-CCUR - 4KB Flash AVR MCU 20MHz 32-UFBGA | Microchip

The Microchip Technology ATMEGA48PA-CCUR is a high-performance, low-power 8-bit AVR ATmega microcontroller with 4KB of In-System Programmable (ISP) FLASH memory, 20MHz maximum clock frequency, and 23 general-purpose I/O lines, packaged in a 32-ball UFBGA (4x4 mm, 0.45 mm ball pitch, 1.0 mm height) supplied in tape and reel. A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and programmable peripherals on one die. The AVR ATmega family sits within the broader taxonomy of 8-bit MCUs, which are widely used where low cost, deterministic execution, and low power matter more than raw processing throughput. The ATMEGA48PA is the picoPower variant of the ATmega48, engineered for battery-operated and energy-conscious designs. Key features include 131 RISC instructions with mostly single-cycle execution, up to 20 MIPS throughput at 20MHz, 4KB (2K x 16) self-programmable FLASH, 256B EEPROM and 512B SRAM (per family datasheet), and supply operation across 1.8V to 5.5V per Microchip documentation, supporting 2.5V, 3.3V, and 5V systems. The picoPower technology provides multiple sleep modes with sub-uA sleep currents, making the PA grade attractive for coin-cell products. Two 8-bit and one 16-bit timers, a 10-bit ADC, USART, SPI, and TWI (I2C) peripherals cover most embedded interfacing needs. The compact 4x4 mm UFBGA suits space-constrained, two-layer or four-layer portable boards. Typical applications include battery-powered sensor nodes, consumer handheld devices, industrial sensing front ends, and small HMI controllers. Design consideration: the fine 0.45 mm ball pitch demands precise PCB land patterns and X-ray or AOI inspection during reflow; plan test points early since BGA balls are not probeable. This page adds value beyond the manufacturer datasheet by synthesizing distributor pricing, drop-in alternatives within the same 32-UFBGA footprint, and practical design notes in one place.

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ATMEGA48PA-MMHR - 4KB Flash 20MHz AVR MCU | Microchip
ATMEGA48PA-MMHR

ATMEGA48PA-MMHR - 4KB Flash 20MHz AVR MCU | Microchip

The Microchip Technology ATMEGA48PA-MMHR is a picoPower 8-bit AVR RISC microcontroller with 4KB of in-system programmable FLASH, 256B of EEPROM, 512B of SRAM, and 23 general-purpose I/O lines, executing at up to 20 MHz in a 4x4 mm 28-pad VQFN (MLF) package with 0.45 mm pitch. An AVR ATmega microcontroller is a member of the 8-bit AVR RISC family - a Harvard-architecture embedded processor that combines program FLASH, data SRAM, EEPROM, timers, and communication peripherals on a single chip within the broader hierarchy of microcontroller units (MCUs) for embedded systems. Key features include 131 powerful instructions with most executing in a single clock cycle, 32 general-purpose working registers, and throughput of up to 20 MIPS at 20 MHz. The picoPower technology delivers very low power consumption in sleep modes, while the operating voltage spans 1.8V to 5.5V, supporting both battery-powered and 5V industrial designs. Peripherals include one 8-bit and one 16-bit timer/counter with compare modes, a 10-bit ADC, a programmable serial USART, a byte-oriented 2-wire serial interface (I2C compatible), an SPI serial port, a programmable watchdog timer with separate on-chip oscillator, and an on-chip analog comparator. Technical depth: the advanced RISC architecture provides power-on reset and programmable brown-out detection, plus an internal calibrated oscillator that removes the need for an external crystal in many designs. Interrupt and wake-up on pin change support low-power event-driven operation. Typical applications include battery-powered sensor nodes, industrial control and HVAC systems, consumer appliances, and low-cost human-interface devices where the compact 4x4 mm footprint suits dense PCB layouts. Design consideration: if migrating to the newer ATMEGA48PB, verify the two documented pin-functionality cautions on pins 3 and 6 before assuming drop-in compatibility. This page synthesizes distributor pricing, verified drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet alone.

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ATMEGA48PA-MMN - 4KB Flash 20MHz AVR MCU QFN-28 | Microchip
ATMEGA48PA-MMN

ATMEGA48PA-MMN - 4KB Flash 20MHz AVR MCU QFN-28 | Microchip

The Microchip Technology ATMEGA48PA-MMN is an 8-bit AVR RISC picoPower microcontroller with 4KB of ISP Flash memory, 256B EEPROM, 512B SRAM, and 23 general-purpose I/O lines, running at up to 20 MHz in a 28-pin VQFN (4x4 mm, 0.45 mm pitch) package. An AVR 8-bit microcontroller is a Harvard-architecture RISC processor that executes most of its 131 instructions in a single clock cycle. Within the power-management hierarchy, an MCU of this class integrates CPU, program memory, data memory, timers, ADC, and communication peripherals on one die, replacing multi-chip logic designs in cost-sensitive embedded systems. The ATmega family spans 4KB to 32KB Flash devices sharing one core and one development toolchain. Key features include the picoPower technology set (idle, power-down, power-save, and standby sleep modes) for ultra-low average consumption in battery products, three flexible timer/counters with compare modes, a 10-bit ADC, and the 32 general-purpose working registers that give AVR its high code density. The PA suffix denotes the low-power picoPower silicon revision of the ATmega48 generation. Architecturally, the AVR core pairs the single-cycle ALU with on-chip in-system programmable (ISP) Flash, allowing firmware updates through the SPI-based ICSP interface using tools such as MPLAB SNAP or the Atmel-ICE debugger. The MMN VQFN-28 (4x4 mm) package suits dense two-layer PCBs and offers an exposed die-attach pad for improved grounding and thermal behavior. Typical applications include battery-powered sensor nodes, small home-automation and IoT end nodes, industrial control subfunctions, and consumer appliance front-ends where 4KB of Flash and 512B of SRAM are sufficient. Design consideration: at 5V and 20 MHz, confirm your supply falls within the high-voltage operating range listed by distributors, and respect the picoPower clock-configuration constraints when scaling frequency downward for low-power modes. This page synthesizes distributor listings, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.

USD $0,74 Em estoque
ATMEGA48PA-MMNR - 8-Bit AVR 20MHz 4KB MCU | Microchip
ATMEGA48PA-MMNR

ATMEGA48PA-MMNR - 8-Bit AVR 20MHz 4KB MCU | Microchip

The Microchip Technology ATMEGA48PA-MMNR is an 8-bit AVR RISC microcontroller with 4 KB in-system programmable Flash, 256 B EEPROM, and 512 B SRAM, running at up to 20 MHz and housed in a 28-pin VQFN (4x4 mm) package. It delivers up to 20 MIPS throughput at 20 MHz with 23 general-purpose I/O lines and operates from 1.8 V to 5.5 V. An AVR microcontroller is a Harvard-architecture 8-bit RISC device that executes most instructions in a single clock cycle, sitting in the hierarchy: AVR MCU -> 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor IC. The ATmega48PA family is Microchip's picoPower line, engineered for low-power embedded control where deterministic real-time response and low quiescent current matter more than raw compute. Key features include 4 KB Flash with 10,000 write/erase cycles, 256 B EEPROM with 100,000 cycles, 512 B SRAM, three flexible timer/counters with compare modes, a 6-channel 10-bit ADC, a programmable watchdog timer, and an internal calibrated RC oscillator. The picoPower architecture enables sub-1 uA power-down current, making the device suitable for battery-powered nodes. The ATmega48PA uses a single-cycle RISC core with 32 general-purpose working registers and 131 instructions, most executing in one clock cycle. In-system programming via SPI and a JTAG/debugWIRE interface support field firmware updates and in-circuit debug without removing the device from the board. Typical applications include battery-powered sensor nodes, consumer appliance control panels, motor control front-ends, and industrial human-machine interfaces. The 28-pin VQFN (4x4 mm) footprint suits space-constrained designs where a full 32-pin TQFP is too large. When designing with this device, decouple VCC with a 100 nF ceramic capacitor close to each supply pin and keep the AVCC filter network separate from digital VCC to preserve ADC accuracy. The internal RC oscillator removes the need for an external crystal in many cost-sensitive designs. 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 $1,33 Em estoque
ATMEGA48PA-MNR - 8-Bit AVR MCU 20MHz 4KB Flash | Microchip
ATMEGA48PA-MNR

ATMEGA48PA-MNR - 8-Bit AVR MCU 20MHz 4KB Flash | Microchip

The Microchip Technology ATMEGA48PA-MNR is a high-performance, low-power 8-bit AVR RISC microcontroller with 4 KB ISP Flash memory (2K x 16), 256 B EEPROM, 512 B SRAM, and 23 general-purpose I/O lines, clocked at up to 20 MHz and housed in a 32-pad VQFN (MLF) 5x5 mm package. An 8-bit AVR microcontroller is a single-chip computer built around an Advanced RISC architecture in which 131 powerful instructions are mostly executed in a single clock cycle, placing it at the top of the MCU hierarchy: microcontroller -> embedded processor -> semiconductor device. The ATmega family adds in-system programmable (ISP) Flash and a picoPower technology core, making it a staple of the broader power-management-aware embedded design ecosystem. Key features include 20 MIPS throughput at 20 MHz, two 8-bit timer/counters and one 16-bit timer with compare modes, a 10-bit ADC with 8 channels, a programmable Watchdog Timer with separate on-chip oscillator, and six sleep modes including Idle, ADC Noise Reduction, and Power-save. Operating voltage spans 1.8 V to 5.5 V, supporting both 3.3 V and 5 V systems. The picoPower core reduces active current consumption dramatically compared with the earlier ATmega48, while retaining full 105 C industrial temperature capability per the Mouser listing. The enhanced RISC Harvard architecture with 32 general-purpose working registers gives single-cycle access to registers, and hardware multipliers speed up math-intensive firmware. Typical applications include battery-powered sensor nodes, consumer appliances, HVAC and motor control boards, and industrial automation slaves using UART/SPI/TWI interfaces. Design consideration: keep the VCC/GND pairs on the VQFN center pads properly decoupled with 100 nF ceramics placed within 2 mm of the pads, since the MLF power pads are internal to the footprint. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

USD $0,86 Em estoque
ATMEGA48PA-MU - 4KB AVR MCU 20MHz picoPower | Microchip
ATMEGA48PA-MU

ATMEGA48PA-MU - 4KB AVR MCU 20MHz picoPower | Microchip

The Microchip Technology ATMEGA48PA-MU is an 8-bit AVR RISC microcontroller with 4 KB ISP Flash memory, 256 B EEPROM, 512 B SRAM, and 23 general purpose I/O lines, operating at up to 20 MHz in a 32-pin VQFN (5x5 mm) package. It belongs to the picoPower ATmega48PA family, consuming as little as 0.1 uA in power-down mode with a wide 1.8 V to 5.5 V supply range. A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, memory, and programmable peripherals on one die, forming the lowest layer of the embedded-systems hierarchy: microcontroller -> embedded processor -> semiconductor device. The ATmega family implements the AVR enhanced RISC architecture with 131 mostly single-cycle instructions and 32 general purpose working registers, giving throughput close to 1 MIPS per MHz. Key features include three flexible timer/counters with compare modes (two 8-bit, one 16-bit), a 10-bit ADC with 8 single-ended channels and differential inputs with programmable gain, and byte-oriented Two-Wire Interface (I2C), SPI, and USART serial interfaces. The picoPower technology provides six software-selectable sleep modes, including idle, ADC noise reduction, power-save, power-down, standby, and extended standby, plus an on-chip Brown-out detector and internal calibrated RC oscillator. Technically, the PA suffix denotes the picoPower revision with reduced leakage and 1.8 V operation at reduced clock speeds; full 20 MHz operation is specified at 4.5 V to 5.5 V, with approximately 10 MHz at 3 V and 4 MHz at 1.8 V per the supply-versus-frequency curve in the manufacturer datasheet. In-system self-programmable Flash with 10,000 write cycles endurance supports boot-loader firmware updates in the field. Typical applications include battery-powered sensor nodes and IoT end nodes (exploiting 0.1 uA power-down current), small industrial control and lighting systems, and consumer appliances using the 5V-tolerant I/O and watchdog-protected operation. A key design consideration: the VQFN exposed pad should be soldered to a grounded PCB pad for reliability even though the die pad is internally connected to GND, and 100 nF decoupling must sit close to both VCC pins. This page adds value beyond the manufacturer datasheet by synthesizing distributor pricing, verified drop-in alternatives within the same 32-pin VQFN footprint, and practical design notes for battery-operated designs.

USD $1,08 Em estoque
ATMEGA48PA-MUR - 8-bit AVR MCU 4KB 20MHz VQFN-32 | Microchip
ATMEGA48PA-MUR

ATMEGA48PA-MUR - 8-bit AVR MCU 4KB 20MHz VQFN-32 | Microchip

The Microchip Technology ATMEGA48PA-MUR is a low-power 8-bit AVR RISC microcontroller with 4KB of in-system programmable Flash, 256B EEPROM, 512B SRAM, 23 general-purpose I/O lines, and a 20 MHz maximum clock frequency, housed in a 32-pin VQFN (5x5 mm, 32M1) package. The picoPower device operates from 1.8V to 5.5V across the -40C to +85C industrial temperature range. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most of its 131 instructions in a single clock cycle, making it a foundational building block within the broader embedded systems hierarchy: MCU -> microcontroller -> semiconductor. The ATmega family pairs the CPU with on-chip Flash program memory, SRAM data memory, EEPROM for non-volatile storage, and a rich peripheral set on a single die. Key features include an advanced RISC core with 32 general-purpose working registers, three flexible timer/counters with compare modes, a 10-bit 6-channel ADC, a programmable serial USART, an SPI interface, a two-wire (I2C-compatible) interface, and five software-selectable power-saving modes. The picoPower technology delivers sub-uA current draw in power-down mode, critical for battery-operated designs. The ATMEGA48PA architecture supports both in-system programming (ISP) and in-application programming, plus debugWIRE on-chip debugging through the RESET pin, reducing development cost by eliminating socketed parts. Internal calibrated RC oscillator options (8 MHz and 128 kHz) allow operation without an external crystal for cost-sensitive designs. Typical applications include consumer appliance control, industrial sensor nodes, battery-powered metering, LED lighting control, and hobby/education platforms. The 23 I/O lines and rich timers suit motor control and UI handling. Design consideration: at 5V the device can run at the full 20 MHz, but at 1.8V the maximum safe clock drops (per the ATmega48PA datasheet frequency-versus-voltage curve), so derate f_MAX at low supply voltages. This page synthesizes distributor pricing, drop-in alternatives including the ATmega48PB, and practical design notes not found in the manufacturer datasheet.

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ATMEGA48PA-PN - 8-Bit AVR MCU 20MHz 4KB Flash 28-PDIP | Microchip
ATMEGA48PA-PN

ATMEGA48PA-PN - 8-Bit AVR MCU 20MHz 4KB Flash 28-PDIP | Microchip

The Microchip Technology (Atmel) ATMEGA48PA-PN is a high-performance, low-power 8-bit AVR RISC microcontroller with 4KB (2K x 16) of In-System Programmable Flash, 256B of EEPROM, and 512B of SRAM, executing up to 20 MIPS at a 20 MHz clock in a 28-pin PDIP package with 23 programmable I/O lines. An 8-bit microcontroller integrates a processor core, memory, and peripherals on a single chip, sitting within the broader hierarchy of MCU -> embedded processor -> semiconductor device. The ATmega48PA belongs to the AVR ATmega family, built on the Advanced RISC architecture with 131 powerful instructions, most executing in a single clock cycle, giving it a throughput class rarely matched in its price tier. Key features include a 2-stage pipeline Harvard architecture, 8-bit and 16-bit timers, a 10-bit ADC, USI and USART serial interfaces, and picoPower technology for ultra-low sleep currents. The PA suffix denotes the picoPower revision, making it well suited for battery-powered designs that spend most of their life in sleep modes. Supply operation spans the 2.5V to 5.5V ranges documented for this part, and the operating temperature extends to 105C per the Mouser listing. The AVR core achieves 20 MIPS at 20 MHz while consuming minimal dynamic power, and its In-System Programmable Flash allows firmware updates on the assembled PCB through the SPI-based ICSP interface. The self-programmable flash also enables boot-loader based updates without a dedicated programmer. Typical applications include appliance control boards, battery-powered sensors, hobby and educational platforms, industrial subsystem controllers, and legacy AVR designs where the through-hole 28-PDIP package simplifies prototyping and hand assembly. A key design consideration is clocking: the internal 8 MHz RC oscillator avoids external components, but precision UART timing benefits from an external crystal; note that with the PB-family migration, Microchip documents pin 3 and pin 6 cautions when using ATmega48PB as a drop-in. This page synthesizes distributor listings, cross-reference migration guidance, pinout data, and drop-in alternatives not consolidated in the manufacturer datasheet.

USD $0,75 Em estoque
ATMEGA48PA-PU - 8-bit AVR MCU 4KB Flash 20MHz DIP-28 | Microchip
ATMEGA48PA-PU

ATMEGA48PA-PU - 8-bit AVR MCU 4KB Flash 20MHz DIP-28 | Microchip

The Microchip Technology ATMEGA48PA-PU is a high-performance, low-power 8-bit AVR RISC microcontroller with 4 KB In-System Programmable Flash, 256 bytes EEPROM, 512 bytes SRAM, and a 20 MHz maximum clock frequency, housed in a 28-pin PDIP (DIP-28) package. An 8-bit microcontroller is a single-chip computer whose CPU processes data 8 bits at a time. The AVR family sits within the broader microcontroller hierarchy: microcontroller unit (MCU) -> embedded processor -> integrated circuit. AVR MCUs use a Harvard architecture with separate program and data buses, allowing most of the 131 instructions to execute in a single clock cycle, which yields up to 20 MIPS throughput at 20 MHz. Key features of the ATMEGA48PA include the picoPower technology for ultra-low sleep-mode currents, 23 general-purpose I/O lines, three flexible timer/counters with compare modes, a 10-bit ADC with 8 channels, a USART, an SPI interface, and a two-wire (I2C-compatible) serial interface. The device operates from 2.5V to 5.5V, supporting both 3.3V and 5V systems, and offers six software-selectable power-saving modes including Power-down at very low current. Architecturally, the ATMEGA48PA pairs the AVR enhanced RISC core with 32 general-purpose working registers, all directly connected to the ALU, enabling single-cycle access that eliminates the accumulator bottleneck of conventional 8051-style cores. The picoPower AVRs are fabricated on a low-leakage process, and the PA suffix denotes the power-optimized variant of the ATmega48 family. Typical applications include hobbyist and educational projects (Arduino-compatible breadboard designs), appliance control, simple industrial sensing nodes, LED lighting controllers, and low-cost embedded systems where through-hole soldering and easy prototyping in DIP form matter. A key design consideration: at 5V the device can run at the full 20 MHz, but at 3.3V the maximum safe clock is approximately 13.3 MHz per the datasheet frequency-versus-voltage curve; plan a 16 MHz or 8 MHz crystal for 3V operation. This page synthesizes distributor pricing, drop-in family alternatives (ATmega88PA/168PA/328P-PU share the same DIP-28 footprint), and practical design notes not found in a single manufacturer datasheet.

USD $2,05 Em estoque
ATMEGA48PB-AN - 8-Bit AVR MCU 20MHz 4KB TQFP-32 | Microchip
ATMEGA48PB-AN

ATMEGA48PB-AN - 8-Bit AVR MCU 20MHz 4KB TQFP-32 | Microchip

The Microchip Technology ATMEGA48PB-AN is an 8-bit AVR RISC microcontroller running at 20 MHz with 4 KB ISP Flash memory, 256 B EEPROM, 512 B SRAM, and 27 general-purpose I/O lines, housed in a 32-pin TQFP (7x7 mm) package rated from -40C to +105C. The ATmega48PB executes most instructions in a single clock cycle, achieving throughput close to 1 MIPS per MHz, and integrates picoPower technology for ultra-low sleep-mode consumption. An 8-bit AVR microcontroller is a self-contained computing device that combines a RISC processor core, program memory (Flash), data memory (SRAM and EEPROM), and peripherals such as timers, USART, SPI, TWI (I2C), and a 10-bit ADC on a single chip. In the broader power-management and embedded-systems hierarchy, it sits at the low-end of the ATmega family, above tinyAVR parts and below the ATmega88PB/168PB/328PB siblings, all of which share the same pinout philosophy and development ecosystem. Key features include 20 MHz maximum clock frequency across the full 2.5V to 5.5V operating range (with 1.8V operation at reduced speed), three flexible timer/counters with compare modes, a USART with wake-up on start of transmission, byte-oriented TWI and SPI serial interfaces, and in-circuit serial programming (ICSP) via two I/O pins and the reset line. The PB silicon revision adds enhanced analog and peripheral functionality over the PA generation while remaining pin-compatible in the 32-pin TQFP package. Architecturally, the ATmega48PB uses a Harvard-architecture AVR RISC core with 32 general-purpose working registers directly connected to the ALU, allowing two independent registers to be accessed in one instruction. picoPower technology provides multiple sleep modes, including power-down and power-save, enabling battery-operated designs with microamp-level standby current. Typical applications include industrial sensor nodes, lighting and HVAC control, consumer appliances, and functional-safety-oriented designs (the device is offered with FuSa support documentation), where the -40C to +105C industrial temperature range and low-cost 4 KB flash footprint fit cost-sensitive embedded control. Design consideration: use decoupling capacitors close to VCC/AVCC and verify the two pins with modified functionality (pin 3 and pin 6) if migrating from ATmega48PA hardware, per Microchip migration application note 00002602A. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet.

USD $0,42 Em estoque