ATMEGA48PV-10MMU - 8-bit AVR MCU 4KB Flash 10MHz | Microchip
MPN: ATMEGA48PV-10MMU ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.28 | $1.28 |
| 10 | $1.12 | $11.20 |
| 100 | $0.95 | $95.00 |
| 500 | $0.82 | $410.00 |
| 1,000 | $0.71 | $710.00 |
ATMEGA48PV-10MMU Overview
An 8-bit microcontroller is an integrated circuit that executes program instructions on 8-bit-wide data words, integrating a processor core, program memory, data memory, timers, and peripherals onto a single chip. The AVR ATmega family sits within the broader hierarchy of microcontrollers -> embedded processors -> semiconductors, and is widely used in embedded systems where low cost, low power, and in-system programmability are essential.
Key features of the ATMEGA48PV-10MMU include the picoPower technology suite for ultra-low sleep-mode consumption, an advanced RISC architecture with 131 mostly single-cycle instructions, three flexible timer/counters with compare modes, and 6-channel 10-bit ADC functionality. The PV suffix denotes operation across a 1.8V to 5.5V supply range at up to 10 MHz, giving design flexibility for battery-powered and 5V industrial systems alike.
Technical depth: the AVR core executes most instructions in a single clock cycle, achieving up to 10 MIPS at 10 MHz. Peripherals include SPI, TWI (I2C-compatible), and USART serial interfaces, plus internal and external interrupt sources. In-system programmable FLASH supports read-while-write, allowing firmware updates in the field via SPI or a bootloader. The FindIC listing confirms the 4x4 MLF industrial-temperature, green (RoHS) package with 1.8V capability.
Typical applications include battery-powered sensor nodes, consumer appliance control, HVAC and motor control interfaces, and low-cost industrial automation where 4 KB of program memory and 23 I/O lines are sufficient.
Design consideration: verify that your code footprint stays below 4 KB FLASH and 512 B SRAM; if the design may grow, select pin-compatible ATMEGA88 or ATMEGA168 family members sharing the identical 28-pin footprint.
This page synthesizes verified distributor data, drop-in alternatives, comparison tables, and practical design notes not found in the manufacturer datasheet, with pricing as of 2026-09-18.
Drop-in alternatives for ATMEGA48PV-10MMU — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATMEGA48PV-10MMU (same form factor and footprint) — differing in Package, RoHS Status, Flash Memory, Operating Temperature, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATMEGA48PA-MUR
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.98 / Unit
View Datasheet →ATMEGA48PA-MMNR
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.33 / Unit
View Datasheet →ATMEGA48P-20MMU
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.1698 / Unit
View Datasheet →ATMEGA48PV-10MMUR
✅ Drop-In📋 Reference alternative (not in catalog)
ATMEGA48PV-10MMU Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit AVR RISC |
| Flash Memory | 4 KB (2K x 16) ISP FLASH |
| EEPROM | 256 B |
| SRAM | 512 B |
| Maximum Clock Frequency | 10 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Operating Temperature | Industrial (-40C to +85C) |
| Number of I/O Lines | 23 |
| Timers/Counters | 3 (with compare modes) |
| ADC | 10-bit, 6 channels |
| Serial Interfaces | SPI, TWI (I2C-compatible), USART |
| Instructions | 131, most single-cycle |
| Performance | Up to 10 MIPS at 10 MHz |
| Low Power Technology | picoPower |
| Package | 28-VQFN (MLF), 4x4 mm, 0.45 mm pitch, 1 mm height |
| Mounting Type | Surface Mount |
| Programmability | In-System Programmable (ISP), read-while-write |
| RoHS Status | Compliant (green package) |
ATMEGA48PV-10MMU Pin Configuration
| Pin 1 | PD3 — Port D bit 3 / digital I/O |
| Pin 2 | PD4 — Port D bit 4 / digital I/O (XCK/T0) |
| Pin 3 | GND — Ground |
| Pin 4 | VCC — Digital supply voltage (1.8V to 5.5V) |
| Pin 5 | GND — Ground |
| Pin 6 | PB6 — Port B bit 6 / XTAL1 (clock input) |
| Pin 7 | PB7 — Port B bit 7 / XTAL2 (clock output) |
| Pin 8 | PD5 — Port D bit 5 / digital I/O (T1/OC0B) |
| Pin 9 | PD6 — Port D bit 6 / digital I/O (AIN0/OC0A) |
| Pin 10 | PD7 — Port D bit 7 / digital I/O (AIN1) |
| Pin 11 | PB0 — Port B bit 0 / digital I/O (ICP1/CLKO) |
| Pin 12 | PB1 — Port B bit 1 / digital I/O (OC1A) |
| Pin 13 | PB2 — Port B bit 2 / digital I/O (SS/OC1B) |
| Pin 14 | PB3 — Port B bit 3 / digital I/O (MOSI/OC2A) |
| Pin 15 | PB4 — Port B bit 4 / digital I/O (MISO) |
| Pin 16 | PB5 — Port B bit 5 / digital I/O (SCK) |
| Pin 17 | AVCC — Analog supply voltage for ADC |
| Pin 18 | ADC6 — ADC input channel 6 |
| Pin 19 | AREF — Analog reference voltage for ADC |
| Pin 20 | GND — Ground |
| Pin 21 | ADC7 — ADC input channel 7 |
| Pin 22 | PC0 — Port C bit 0 / ADC input channel 0 |
| Pin 23 | PC1 — Port C bit 1 / ADC input channel 1 |
| Pin 24 | PC2 — Port C bit 2 / ADC input channel 2 |
| Pin 25 | PC3 — Port C bit 3 / ADC input channel 3 |
| Pin 26 | PC4 — Port C bit 4 / ADC input channel 4 / SDA |
| Pin 27 | PC5 — Port C bit 5 / ADC input channel 5 / SCL |
| Pin 28 | PC6 — Port C bit 6 / RESET (active low) |
Typical Applications
ATMEGA48PV-10MMU is suitable for 6 applications: Battery-Powered Sensor Nodes, Industrial Automation and Control, HVAC and Appliance Control, Motor Control Interfaces, Consumer Electronics and Toys, Prototyping and Embedded Education.
Battery-Powered Sensor Nodes
The ATMEGA48PV-10MMU fits battery-powered sensor nodes because its picoPower technology minimizes sleep-mode current and its 1.8V minimum supply allows direct operation from low-voltage cells without a boost converter. In a typical node, the MCU spends most of its life in power-down sleep, waking on timer or external interrupt to sample a sensor via the 6-channel 10-bit ADC, then transmitting results over the SPI or USART port to a radio module. Because sampling and transmission events are brief, the 10 MHz maximum clock is ample and the reduced activity at lower clock rates further saves energy. The 256 B EEPROM retains calibration data across battery replacements, while the 4 KB FLASH accommodates the acquisition and protocol code. Overall duty cycle, not peak speed, dominates battery life, which is exactly where this device is optimized.
Recommended
Industrial Automation and Control
In industrial automation, the ATMEGA48PV-10MMU serves as a low-cost controller for actuators, limit switches, and simple closed-loop tasks. Its 5.5V maximum supply tolerates noisy 5V industrial rails, and the industrial temperature rating (-40C to +85C) supports cabinet-mounted electronics. Three flexible timer/counters with compare modes generate PWM for motor drivers and measure input pulse widths from encoders, while 23 I/O lines drive relays, indicators, and optocoupler inputs. The TWI (I2C) and SPI interfaces connect the MCU to RTC chips, external EEPROM, and HMI front-ends. In-system programmability means firmware can be updated in installed equipment via an SPI header, reducing service visits. Where 4 KB FLASH is insufficient for expanded logic, the pin-compatible ATMEGA88/168 footprint allows migration without PCB respin, protecting the mechanical and layout investment.
Recommended
HVAC and Appliance Control
Consumer appliances and HVAC controls benefit from the ATMEGA48PV-10MMU's combination of 10-bit ADC, PWM-capable timers, and low standby consumption. The ADC reads thermistors and humidity sensors on its 6 input channels, timers produce phase-correct PWM for blower and fan speed control, and the USART links to displays or remote modules. PicoPower sleep modes keep standby power within regulatory limits for always-plugged-in appliances, an increasingly common requirement in energy-efficiency standards. The 1.8V to 5.5V range allows a single supply design across product tiers, and the 4x4 mm VQFN conserves PCB area on cost-driven single-sided control boards. In-field firmware updates via ISP bootloader let manufacturers fix logic issues or add features without recalls, and the 256 B EEPROM stores user settings across power cycles.
Recommended
Motor Control Interfaces
For small DC motor and stepper control, the ATMEGA48PV-10MMU generates PWM on its timer outputs to drive external MOSFET bridges or driver ICs such as the L293/L298 class of parts. Timer compare modes support fast PWM, phase-correct PWM, and center-aligned schemes, giving smooth current control and reduced audible noise. The ADC channels can sense motor current through a shunt for stall detection and torque limiting, while external interrupts capture quadrature encoder feedback. At 10 MHz, the core executes control loops at tens of kHz, adequate for most small-motor applications. The 5V I/O directly interfaces with typical gate-driver logic thresholds, and the 23 I/O lines leave headroom for limit switches, status LEDs, and a serial diagnostics port. Industrial temperature rating supports motor-adjacent mounting inside enclosures.
Recommended
Consumer Electronics and Toys
The ATMEGA48PV-10MMU is cost-effective for consumer products such as toys, small displays, chargers, and remote controls where unit cost and board area dominate the design. Its 4x4 mm VQFN footprint minimizes PCB real estate, the 4 KB FLASH is sized for simple state machines, LED effects, and button decoding, and the internal RC oscillator removes the need for an external crystal in non-timing-critical products, cutting BOM cost further. The 1.8V operation supports single-cell designs, and picoPower sleep modes extend shelf life in battery products. The 23 I/O lines drive LED matrices, keys, and sounders, while the EEPROM stores serial numbers and user preferences. High-volume reel packaging (MMUR) supports automated pick-and-place lines for mass production.
Recommended
Prototyping and Embedded Education
The ATMEGA48PV-10MMU is widely used in prototyping, university labs, and hobby projects because the AVR architecture is thoroughly documented, development is free with the AVR-GCC toolchain and Microchip Studio, and in-system programming requires only a low-cost SPI programmer. The device exposes all classic MCU concepts - RISC core, Harvard memory, interrupts, timers, ADC, and serial protocols - on a single inexpensive chip, making it ideal for teaching embedded fundamentals. Because it is pin-compatible with the ATMEGA88, 168, and 328 in the same footprint, student boards can accept larger-memory parts when projects outgrow 4 KB FLASH, a practical migration path that saves PCB respins. Breadboard-friendly carrier boards and countless open-source libraries further shorten the path from schematic to working firmware.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA48PV-10MMU — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA48PA-MUR | ATMEGA48PA-MMNR | ATMEGA48P-20MMU | ATMEGA48PV-10MMUR |
|---|---|---|---|---|---|
| Package | 28-VQFN (4x4 mm MLF) | 28-VQFN (4x4 mm MLF) - same | 28-VQFN (4x4 mm MLF) - same | 28-VQFN (4x4 mm MLF) - same | 28-VQFN (4x4 mm MLF) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Maximum Clock Frequency | 10 MHz | 20 MHz | 20 MHz | 20 MHz | 10 MHz |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 4.5 V to 5.5 V (at 20 MHz) | 1.8 V to 5.5 V |
| SRAM | 512 B | 512 B | 512 B | 512 B | 512 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B |
| Low Power Technology | picoPower | picoPower (newer die) | picoPower (newer die) | Standard power | picoPower |
| Generation / Lifecycle | Older PV die, newer device available (ATMEGA48PA) | Recommended successor | Recommended successor | Same generation | Identical die (reel packaging) |
Key Differentiators
- Low-voltage operation down to 1.8 V (vs ATMEGA48P-20MMU)
- Recommended newer-generation successor (vs ATMEGA48PA-MUR)
- Identical die for BOM-matching continuity (vs ATMEGA48PV-10MMUR)
Design Notes
Decouple VCC (pin 4) and AVCC (pin 17) with 100 nF ceramic capacitors placed within 5 mm of each pin, plus a 10 uF bulk capacitor near the IC. AVCC must be connected to VCC even if the ADC is unused - leaving it floating causes undefined ADC and port behavior. If using the ADC with an external reference, connect AREF (pin 19) through a 100 nF capacitor to ground and never drive it while the internal reference is enabled, as per the ATmega48 family datasheet power-supply guidelines.
The 28-VQFN 4x4 mm package has a central exposed pad that must be soldered to a grounded thermal landing pattern; this pad is the primary thermal and grounding path and also improves hand-soldering yield when the land pattern includes via fencing to internal ground planes. Multiple GND pins (3, 5, 20) should each tie directly to the exposed-pad copper. Follow the Microchip MLF land-pattern application note for 0.45 mm pitch stencil design to avoid solder bridging during reflow.
PC6 (pin 28) doubles as RESET - if it is reused as a general I/O by programming the RSTDISBL fuse, in-system programming via SPI becomes impossible and recovery requires a parallel/High-Voltage programmer. Also note that PB6/PB7 (pins 6, 7) default to the crystal function; designs using the internal RC oscillator may reclaim them as I/O via fuses. Verify clock calibration: the internal RC oscillator is factory-calibrated but tolerance is several percent, so use a crystal for UART timing-critical or USB-class applications.
Estimated: at 5 V, 10 MHz, and a typical active-mode current in the low-mA range (per datasheet active-mode figures), a battery-powered design should spend the majority of its duty cycle in power-down sleep, waking via watchdog timer or pin-change interrupt. Waking through the USART start frame or pin-change interrupt rather than polling the ADC dramatically reduces average current. Confirm exact sleep-mode currents against the current datasheet revision before finalizing battery-life calculations.
Compliance Information
Verified web data describes the package as GREEN (green/lead-free molding compound) with industrial temperature range. Formal REACH and conflict-minerals declarations not stated in the provided data - request Microchip compliance certificates.
