ATMEGA48V-10MU - 4KB Flash 10MHz AVR MCU 1.8V | Microchip
N.º da peça: ATMEGA48V-10MU ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.66 | $3,66 |
| 10 | $3.29 | $32,90 |
| 100 | $2.93 | $293,00 |
| 500 | $2.64 | $1.320,00 |
| 1.000 | $2.38 | $2.380,00 |
ATMEGA48V-10MU Visão geral
A microcontroller (MCU) is a compact integrated circuit that combines a processor core, non-volatile program memory, data memory, and peripheral functions on a single die. The ATMEGA48V-10MU belongs to the AVR ATmega family of RISC microcontrollers, which sits within the broader hierarchy of embedded processors and semiconductor ICs. AVR 8-bit MCUs are widely used because their single-cycle instruction execution delivers up to 10 MIPS throughput at 10MHz for this grade.
Key features include the Advanced RISC architecture with 131 powerful instructions, most executed in a single clock cycle, 32 x 8 general purpose working registers, and an on-chip 2-cycle hardware multiplier. The device provides 23 general purpose I/O lines, three flexible timer/counters with compare modes, and picoPower technology for ultra-low sleep-mode current consumption, making it well suited to battery-powered designs.
The picoPower technology platform reduces power consumption across all sleep modes, which is the primary reason engineers select the V voltage-grade variant over standard ATmega48 parts. The 1.8V to 5.5V wide supply range allows direct operation from single-cell lithium coin batteries or two-cell alkaline stacks without a regulator.
Typical applications include battery-powered sensors, consumer appliances, industrial control nodes, and handheld instruments where low quiescent current and wide voltage tolerance matter more than raw clock speed.
When designing with this device, note the 10MHz speed grade constraint: the V variant is specified to 10MHz, so designs requiring 20MHz should use the ATMEGA48-20MU instead.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet.
Alternativas drop-in para ATMEGA48V-10MU — 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 ATMEGA48V-10MU (mesmo formato e footprint) — diferindo em Package, Flash Memory, Operating Temperature, Timers, RoHS Status.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATMEGA48V-10MMU
✅ Drop-In✓ Em estoque
$1.39 / unidade
Ver ficha técnica →ATMEGA48PV-10MUR
✅ Drop-In✓ Em estoque
$0.85 / unidade
Ver ficha técnica →ATMEGA48PV-10MMU
✅ Drop-In✓ Em estoque
$0.71 / unidade
Ver ficha técnica →ATMEGA48PA-15MZ
✅ Drop-In✓ Em estoque
$0.68 / unidade
Ver ficha técnica →ATMEGA48A-MMHR
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →ATMEGA88V-10MU
✅ Drop-In✓ Em estoque
$2.55 / unidade
Ver ficha técnica →ATMEGA48-20MU
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATMEGA48V-10MU Classificações máximas e características elétricas
| Core Architecture | 8-bit AVR RISC |
| Flash Memory | 4KB (2K x 16) In-System Self-Programmable |
| EEPROM | 256B |
| SRAM | 512B |
| Maximum Clock Speed | 10 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V |
| General Purpose I/O | 23 lines |
| Timer/Counters | 3 (with compare modes) |
| Instructions | 131, most single-cycle |
| General Purpose Working Registers | 32 x 8 |
| Hardware Multiplier | On-chip 2-cycle |
| Throughput | Up to 10 MIPS at 10 MHz |
| Low Power Technology | picoPower |
| Encapsulamento | 32-VQFN (5x5 mm) |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant (GREEN package) |
| Lifecycle Stage | Active |
| Programming Interface | ISP / ICSP |
Configuração de pinos do ATMEGA48V-10MU
| Pino 1 | PD3 — Port D bit 3 (GPIO) |
| Pino 2 | PD4 — Port D bit 4 (GPIO) |
| Pino 3 | GND — Ground |
| Pino 4 | VCC — Digital supply voltage |
| Pino 5 | GND — Ground |
| Pino 6 | VCC — Digital supply voltage |
| Pino 7 | PB6/XTAL1/TOSC1 — Port B bit 6 / crystal oscillator input / timer oscillator |
| Pino 8 | PB7/XTAL2/TOSC2 — Port B bit 7 / crystal oscillator output / timer oscillator |
| Pino 9 | PD5 — Port D bit 5 (GPIO) |
| Pino 10 | PD6 — Port D bit 6 (GPIO) |
| Pino 11 | PD7 — Port D bit 7 (GPIO) |
| Pino 12 | PB0 — Port B bit 0 (GPIO) |
| Pino 13 | PB1 — Port B bit 1 (GPIO) |
| Pino 14 | PB2 — Port B bit 2 (GPIO) |
| Pino 15 | PB3/MOSI/OC2A — Port B bit 3 / SPI master out / Timer2 output compare |
| Pino 16 | PB4/MISO — Port B bit 4 / SPI master in |
| Pino 17 | PB5/SCK — Port B bit 5 / SPI clock |
| Pino 18 | AVCC — ADC supply voltage |
| Pino 19 | ADC6 — ADC input channel 6 (input only) |
| Pino 20 | AREF — Analog reference voltage |
| Pino 21 | GND — Ground |
| Pino 22 | ADC7 — ADC input channel 7 (input only) |
| Pino 23 | PC0/ADC0 — Port C bit 0 / ADC channel 0 |
| Pino 24 | PC1/ADC1 — Port C bit 1 / ADC channel 1 |
| Pino 25 | PC2/ADC2 — Port C bit 2 / ADC channel 2 |
| Pino 26 | PC3/ADC3 — Port C bit 3 / ADC channel 3 |
| Pino 27 | PC4/ADC4/SDA — Port C bit 4 / ADC channel 4 / I2C data |
| Pino 28 | PC5/ADC5/SCL — Port C bit 5 / ADC channel 5 / I2C clock |
| Pino 29 | PC6/RESET — Port C bit 6 / external reset input |
| Pino 30 | PD0/RXD — Port D bit 0 / USART receive |
| Pino 31 | PD1/TXD — Port D bit 1 / USART transmit |
| Pino 32 | PD2/INT0 — Port D bit 2 / external interrupt 0 |
Aplicações típicas
ATMEGA48V-10MU é adequado para 6 aplicaçãos: Battery-Powered Sensor Nodes, Industrial Control Nodes, Consumer Appliances, Handheld and Portable Instruments, Lighting and Dimmer Control, IoT Edge Sensor Front-Ends.
Battery-Powered Sensor Nodes
The ATMEGA48V-10MU fits battery-powered sensor nodes because its 1.8V to 5.5V supply range allows direct operation from a single lithium coin cell as it discharges below 3V, while picoPower technology keeps sleep current minimal between measurement cycles. In a typical node, the MCU wakes on watchdog timeout or external interrupt, reads the sensor over I2C or SPI, and transmits data before returning to power-down sleep. Because most AVR instructions execute in a single cycle, the wake-measure-transmit duty cycle completes quickly at modest 10MHz clock rates, further reducing average energy per reading.
Recomendado
Industrial Control Nodes
In industrial control panels, the ATMEGA48V-10MU drives relays, reads switches, and sequences outputs using its 23 I/O lines and three timer/counters with compare modes. The wide 1.8V to 5.5V supply tolerance tolerates unregulated 5V logic supplies with brown-out protection guarding against supply sag from motor loads, and the on-chip watchdog provides fault recovery per the family datasheet. Its 4KB flash is sufficient for state-machine control logic, while the 256B EEPROM stores configuration and calibration constants that survive power cycling in factory settings.
Recomendado
Consumer Appliances
Consumer appliance controls, such as small heater thermostats, fan controllers, and coffee makers, benefit from the ATMEGA48V-10MU's low cost, 32-VQFN (5x5 mm) compact footprint, and robust 23-channel I/O for driving seven-segment displays, keypads, and triac control outputs. The 10MHz internal-capable clock keeps EMI low, simplifying EMC compliance in cost-sensitive consumer products, and the 2-cycle hardware multiplier supports basic sensor linearization in firmware without external components. The GREEN, RoHS-compliant package supports global consumer market environmental requirements.
Recomendado
Handheld and Portable Instruments
Handheld instruments such as multimeters, thermometers, and portable testers demand long battery life, and the ATMEGA48V-10MU's picoPower technology plus 1.8V minimum supply voltage delivers exactly that: the instrument continues operating accurately as batteries deplete, and power-down sleep modes extend shelf life between uses. The 10-bit ADC and internal reference (per family datasheet) handle direct analog measurement inputs, while the 512B SRAM buffers readings and the 256B EEPROM retains calibration data. Its 5x5 mm VQFN fits slim handheld enclosures with room to spare for a display and keypad.
Recomendado
Lighting and Dimmer Control
The ATMEGA48V-10MU performs phase-cut dimming and LED lighting control using its timer/counter compare modes to generate precise PWM or zero-cross-synchronized output pulses. The 10MHz clock provides adequate timer resolution for flicker-free 8-bit PWM dimming, and the 2-cycle hardware multiplier eases gamma-correction lookup computations in firmware. Its wide 1.8V to 5.5V supply range survives the noisy, sagging supplies typical near triac circuits when paired with a simple series regulator, and the brown-out detector prevents corrupted EEPROM settings during mains dips.
Recomendado
IoT Edge Sensor Front-Ends
As a front-end for IoT edge devices, the ATMEGA48V-10MU acquires sensor data over SPI/I2C, pre-filters it, and hands off to a wireless module via UART. PicoPower sleep modes let the front-end duty-cycle aggressively, waking on sensor threshold interrupts so the wireless radio stays off until meaningful data exists, dramatically extending battery life. The 512B SRAM handles modest buffering and packet framing, and 23 I/O lines cover sensor, radio, and status interfaces simultaneously. When firmware grows beyond 4KB, the pin-compatible ATMEGA88V-10MU or ATMEGA328P-MU drops onto the same PCB footprint.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATMEGA48V-10MU — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATMEGA48V-10MMU | ATMEGA48PV-10MUR | ATMEGA48PA-15MZ | ATMEGA88V-10MU |
|---|---|---|---|---|---|
| Package | 32-VQFN (5x5) | 32-VQFN (5x5) - same | 32-VQFN (5x5) - same | 32-VQFN (5x5) - same | 32-VQFN (5x5) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Speed | 10 MHz | 10 MHz | 10 MHz | 20 MHz | 10 MHz |
| Flash Memory | 4 KB | 4 KB | 4 KB | 4 KB | 8 KB |
| SRAM | 512 B | 512 B | 512 B | 512 B | 1 KB |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| I/O Lines | 23 | 23 | 23 | 23 | 23 |
| Low Power Technology | picoPower | picoPower | picoPower | picoPower | picoPower |
| Lifecycle Status | Active | Active | Active | Active | Active |
Principais diferenciais
- Lowest-voltage operation for battery designs (vs ATMEGA48-20MU)
- Newer silicon available without footprint change (vs ATMEGA48PV-10MUR)
- Memory-constrained cost point with an upgrade path (vs ATMEGA88V-10MU)
Notas de projeto
Estimated: the ATMEGA48V-10MU draws very little dynamic power, but always place a 100nF ceramic decoupling capacitor on each VCC pin (pins 4 and 6) and a separate 100nF on AVCC (pin 18), with AVCC tied to VCC through a low-pass RC filter when the ADC is used. Power the AVCC pin even if the ADC is unused - the family datasheet requires it connected to VCC. Enable the brown-out detector (BOD) for designs writing to EEPROM during operation so power dips cannot corrupt stored settings.
The 32-VQFN (5x5 mm) package has a center exposed paddle that must be soldered to a grounded copper pour on the PCB - it serves as the primary ground connection and thermal path. Use a 4x4 via array under the paddle to the ground plane. Keep the crystal (if used) within 10 mm of pins 7 and 8 (XTAL1/XTAL2) with short traces and place the crystal load capacitors directly adjacent. Route the ADC input traces away from clock and switching signals to preserve analog accuracy.
Do not clock the V-grade part above 10MHz - it is speed-limited by its voltage-grade characterization; designs needing 20MHz must use ATMEGA48-20MU or ATMEGA48PA. Also, PC6/RESET (pin 29) defaults to reset function; if you repurpose it as GPIO by clearing the RSTDISBL fuse, you lose ISP reprogramming capability - avoid this unless the firmware is final. When migrating from ATMEGA48V to ATMEGA48PA variants, review the family datasheet errata sections for silicon revision differences.
Informações de conformidade
GREEN package designation per digchip specification listing (GREEN, plastic). RoHS and lead-free per package marking; REACH status not stated in provided data.
