ATMEGA3250PV-10AUR - 8-bit AVR MCU 32KB 10MHz | Microchip
N.º da peça: ATMEGA3250PV-10AUR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.77 | $5,77 |
| 10 | $5.48 | $54,80 |
| 100 | $4.9 | $490,00 |
| 500 | $4.41 | $2.205,00 |
| 1.000 | $3.92 | $3.920,00 |
ATMEGA3250PV-10AUR Visão geral
An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle, positioning itself within the broader hierarchy of microcontrollers (MCU) under the semiconductor and embedded processing families. MCUs of this class integrate program Flash, data SRAM, EEPROM, timers, USARTs, SPI, TWI (I2C), and an ADC on a single die, replacing multi-chip designs in cost-sensitive embedded systems. The AVR core in the ATmega family achieves up to 16 MIPS throughput thanks to its advanced RISC architecture with 131 powerful instructions and 8 general-purpose working registers.
Key features of the ATMEGA3250PV-10AUR include the PicoPower 'picoV' derivative designation: the V suffix indicates a wide 1.8V to 5.5V operating voltage range suited to battery-powered designs, while the P suffix denotes picoPower technology with multiple sleep modes for ultra-low power consumption. The 10MHz speed grade supports 1.8V operation across the full voltage range, and fully static operation allows clocking down to DC for power-critical polling designs.
The architecture is fully static and executes most instructions in a single clock cycle, delivering deterministic real-time behavior that is prized in industrial control. The 100-pin TQFP exposes an unusually rich GPIO count for the ATmega family, enabling parallel interfacing to displays, keypads, and external memory-mapped peripherals without port expanders.
Typical applications include industrial automation controllers, HVAC and building control panels, battery-operated metering, and consumer appliances where a wide supply window, many I/O pins, and in-system programmability shorten development cycles.
Design consideration: at 1.8V operation the 10MHz grade is the correct speed selection; higher speed grades (16/20MHz) require higher minimum supply voltages, so verify your rail before substituting.
This page synthesizes distributor pricing, drop-in alternatives within the same 100-TQFP footprint, and practical design notes not consolidated in the manufacturer datasheet.
Alternativas drop-in para ATMEGA3250PV-10AUR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATMEGA3250PV-10AUR (mesmo formato e footprint) — diferindo em Package, Operating Temperature, Speed, Supply Voltage Range, Connectivity.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATMEGA3250P-20AU
✅ Drop-In✓ Em estoque
$1.8 / unidade
Ver ficha técnica →ATMEGA3250PA-AUR
✅ Drop-In✓ Em estoque
$2.98 / unidade
Ver ficha técnica →ATMEGA3250V-8AI
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATMEGA3250-16AU
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.74 / unidade
Ver ficha técnica →ATMEGA3250P-20AUR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ATMEGA3250PV-10AUR Classificações máximas e características elétricas
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 10 MHz |
| Flash Memory | 32 KB (16K x 16) |
| SRAM | 2 KB |
| EEPROM | 1 KB |
| Operating Voltage | 1.8 V |
| Encapsulamento | 100-TQFP (14x14 mm) |
| Tipo de montagem | Surface Mount |
| Architecture | Advanced RISC, 131 instructions, fully static |
| Throughput | Up to 16 MIPS (AVR core, datasheet family figure) |
| Programming | In-System Programmable (ISP) Flash |
| Technology | picoPower (P suffix), low-power V grade |
| Packaging | Tape & Reel (R suffix) |
Guia de Configuração de Pinos do ATMEGA3250PV-10AUR 100-tqfp (14x14 mm)
Configuração de pinos para ATMEGA3250PV-10AUR (pacote 100-tqfp (14x14 mm)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para ATMEGA3250PV-10AUR.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ATMEGA3250PV-10AUR é adequado para 6 aplicaçãos: Industrial Automation Controllers, Battery-Powered Metering, HVAC and Building Control Panels, Consumer Appliance Control, Portable Instrumentation, Remote Sensor Nodes and IoT Endpoints.
Industrial Automation Controllers
The ATMEGA3250PV-10AUR fits industrial controller designs where deterministic real-time behavior and many I/O lines are required. Its AVR RISC core executes 131 instructions, most in a single clock cycle, providing predictable interrupt latency for timed control loops, while the 100-pin TQFP exposes ample GPIO for relays, contactors, limit switches, and parallel indicators without I/O expanders. The 32KB ISP Flash supports firmware field updates over a USART or SPI bootloader, and the 1KB EEPROM stores calibration and configuration through power cycles. In a typical topology the MCU polls inputs, runs a fixed-period control algorithm, and drives outputs with fully static operation allowing clock throttling when idle. Trade-off: at 10MHz, throughput is modest versus 32-bit parts, but code density and determinism favor AVR here.
Recomendado
Battery-Powered Metering
The PV grade is engineered for battery products: it operates from a 1.8V supply, matching the end-of-discharge voltage of two alkaline cells, and picoPower technology provides deep sleep modes that slash average current in duty-cycled metering. The fully static core allows the clock to be stopped entirely between measurements, waking on timer or external interrupt to sample and log to the 1KB EEPROM or external memory. The 100-TQFP GPIO budget supports segment displays, optical communication ports, and tamper switches simultaneously. Typical usage pairs the internal RC oscillator at low speed with periodic 10MHz bursts for computation, optimizing energy per task. The key consideration is that the 10MHz ceiling limits compute bursts; for energy-per-instruction efficiency at low voltage, this grade is actually optimal because faster grades cannot run at 1.8V.
Recomendado
HVAC and Building Control Panels
Building automation panels benefit from the ATMEGA3250PV-10AUR's combination of rich parallel I/O and field programmability. The 100-TQFP package drives multi-zone temperature displays, keypad matrices, damper actuators, and valve outputs directly, while SPI and TWI (I2C) interfaces connect external sensors and RTCs on short board-level buses. The 32KB Flash accommodates communication stacks and scheduling logic, and in-system programming allows installers to update configuration firmware without desoldering. The AVR's single-cycle execution keeps PID loop timing consistent across zone counts. Power design should leverage sleep modes between scheduling ticks to meet panel standby budgets; at 1.8V-capable silicon, the same board can be re-qualified for battery-backed operation. The trade-off is analog integration: external ADCs may be preferable for high-accuracy temperature chains.
Recomendado
Consumer Appliance Control
White-goods and appliance main boards use the ATMEGA3250PV-10AUR where cost, EMC simplicity, and enough I/O to drive user interfaces converge. Unlike switching-heavy 32-bit solutions, the single-chip AVR integrates program memory, RAM, EEPROM, timers, and communication peripherals, reducing BOM count and radiated-emission sources. The 10MHz clock keeps harmonics low-frequency, easing conducted-emissions filtering in appliance compliance testing. Flash ISP enables end-of-line firmware programming, and the EEPROM retains cycle counters and fault logs across power loss. Typical firmware runs a cooperative scheduler sampling user inputs at millisecond rates and sequencing motor and heater outputs through timer PWM. Designers should budget the 2KB SRAM carefully since large display buffers are better held in external serial memory. Cost-sensitive variants may step down to smaller ATmega parts in the same family.
Recomendado
Portable Instrumentation
Handheld measurement and test instruments exploit the PV part's low-voltage operation and static core. Running from 1.8V means direct coupling to single-cell boost converters or two-cell stacks without level-shifting, and picoPower sleep modes extend battery life between charges in instruments that sit idle most of the day. The 10MHz core performs display refresh, keypad decoding, and ADC result scaling with deterministic timing, while SPI connects precision converters such as external delta-sigma ADCs for the measurement front end. The 100-pin footprint supports parallel LCD modules and multi-function keypads typical of bench-style handhelds. A practical pattern is burst-measure-sleep: clock the core at full speed only during ADC acquisition and math, then park in power-down with a watchdog-timed wake. Ensure brown-out detection is enabled when operating near 1.8V to prevent corrupt EEPROM writes.
Recomendado
Remote Sensor Nodes and IoT Endpoints
Wireless sensor nodes favor the ATMEGA3250PV-10AUR for its ultra-low sleep current and 1.8V compatibility with modern energy-harvesting and LiSOCl2 cells. The MCU sleeps in power-down, wakes on timer or radio interrupt, formats readings into packets, and hands them to an SPI or USART radio module, keeping the high-current radio on for the shortest possible window. The 32KB Flash holds protocol stacks with headroom for AES or CRC routines, and 1KB EEPROM stores node identity and calibration. At 1.8V the 10MHz ceiling aligns with the maximum speed of many low-voltage radio modules, simplifying logic interfacing without level translators. Design emphasis belongs on sleep-mode current measurement across temperature, since average battery life is dominated by quiescent draw; the picoPower silicon in this grade is specifically binned for that purpose.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATMEGA3250PV-10AUR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATMEGA3250P-20AU | ATMEGA3250PA-AUR | ATMEGA3250V-8AI | ATMEGA3250-16AU |
|---|---|---|---|---|---|
| Package | 100-TQFP (14x14 mm) | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Speed | 10 MHz | 20 MHz | 20 MHz | 8 MHz | 16 MHz |
| Flash Memory | 32 KB (16K x 16) | 32 KB | 32 KB | 32 KB | 32 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| picoPower Technology | Yes (P suffix) | Yes | Yes | No | No |
Principais diferenciais
- 1.8V low-voltage operation (vs ATMEGA3250P-20AU)
- picoPower sleep-mode current (vs ATMEGA3250-16AU)
- 100-pin GPIO density in the ATmega family (vs ATMEGA324PV-10MU)
- Cost of headroom trade-off (vs ATMEGA3250PA-AUR)
Notas de projeto
The PV grade's headline benefit is 1.8V operation, but the 10MHz speed rating is tied to that voltage. Before substituting a faster grade (16/20MHz), confirm your minimum rail under all conditions, including battery end-of-discharge and brown-out transients: faster grades typically require higher minimum VCC to run at speed. Enable the internal brown-out detector (BOD) when writing to EEPROM near 1.8V, since a corrupt write during supply sag is a classic field failure in metering products.
Decouple each VCC/AVCC pin pair of the 100-TQFP with 100nF ceramic capacitors placed within 2-3 mm of the pins, plus one bulk 10uF capacitor per supply domain. With 100 pins, use at least a solid ground plane on layer 2 and place AVCC filtering (ferrite plus 100nF/10uF) ahead of the analog domain to protect ADC accuracy. Keep crystal/oscillator traces short and guarded by ground; at 10MHz harmonic emissions are modest but layout hygiene still determines EMC margins in appliance compliance testing.
Substituting within the ATmega3250 family requires verifying three things, not just the footprint: speed grade versus supply voltage, picoPower versus standard silicon (sleep currents differ significantly), and temperature grade (I = industrial, A = -40C to +85C per ordering-code conventions - confirm in the datasheet). Firmware using speed-optimized delay loops or SPI clock dividers tuned to 10MHz will mis-time on 8MHz or 20MHz alternates. Recalculate UART baud register values whenever the clock grade changes during a substitution.
With up to 100 GPIO switching on a single die, simultaneous switching noise on shared ground returns can couple into the ADC. Group high-current output ports away from analog port pins in your PCB floorplan, limit per-port slew where firmware control is available, and provide local ground vias at each port connector. For long ribbon-cable-driven displays and keypads driven from the wide port complement, add series 33-100 ohm resistors to damp ringing and reduce radiated emissions.
Informações de conformidade
Compliance details were not present in the verified web data for this ordering code; modern Microchip ATmega TQFP production parts are generally RoHS/lead-free, but this must be confirmed on the official Microchip product page before procurement claims.
