ATMEGA48PV-10MUR - 8-bit AVR MCU 4KB Flash 10MHz VQFN-32 | Microchip
MPN: ATMEGA48PV-10MUR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.35 | $1.35 |
| 10 | $1.22 | $12.20 |
| 100 | $1.01 | $101.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.85 | $850.00 |
ATMEGA48PV-10MUR Overview
An 8-bit AVR ATmega microcontroller is a Harvard-architecture RISC processor that executes most of its 131 instructions in a single clock cycle, combining the flash program memory, EEPROM data memory, SRAM, timers, ADC, and serial peripherals on a single chip. Within the power-management hierarchy, it functions as the system-level controller for embedded products, sitting above discrete logic and below 32-bit application processors.
Key features of the ATMEGA48PV-10MUR include the picoPower technology suite for microamp-level sleep currents, an operating voltage range of 1.8V to 5.5V that supports single-cell battery and 5V logic designs, three flexible timer/counters with compare modes, a 10-bit ADC, and SPI and TWI (I2C) serial interfaces. The device is in-system programmable via SPI, enabling firmware updates without removing the chip from the PCB.
The advanced RISC architecture provides 32 general-purpose working registers directly connected to the ALU, allowing two independent registers to be accessed in one instruction. The picoPower feature set includes idle, ADC noise reduction, power-save, power-down, and standby sleep modes with wakeup sources such as pin-change interrupts and the watch-dog timer, making the device well suited to battery-powered designs that spend most of their life asleep.
Typical applications include battery-powered sensor nodes, industrial control panels, home automation devices, LED lighting controllers, and consumer appliance user interfaces where low standby current and 5V tolerance matter. The 5x5 mm VQFN footprint conserves board area in compact designs.
A key design consideration is that flash density is only 4KB; if firmware grows beyond this limit, pin-compatible upgrades to the ATmega88PA or ATmega328P in the same 32-VQFN footprint preserve the layout investment. Note also that a newer device, the ATMEGA48PA, is recommended by Microchip for new designs.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for ATMEGA48PV-10MUR — 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-10MUR (same form factor and footprint) — differing in Package, Flash Memory, RoHS Status, Operating Temperature, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATMEGA48PV-10MMU
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.71 / Unit
View Datasheet →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 →ATMEGA328P-MMHR
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
ATMEGA328-MMHR
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.8 / Unit
View Datasheet →ATMEGA48PV-10MUR Maximum Ratings & Electrical Characteristics
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 10 MHz |
| Flash Memory | 4 KB (2K x 16) |
| EEPROM | 256 B |
| SRAM | 512 B |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 32-VQFN (5x5 mm), 0.45 mm pitch |
| Mounting Type | Surface Mount |
| Number of I/O | 23 |
| General Purpose Registers | 32 x 8 |
| Instructions | 131, most single-cycle |
| Peripherals | SPI, TWI (I2C), 10-bit ADC, Timer/Counters, Brown-out Detect, WDT |
| Technology Family | AVR ATmega picoPower |
| RoHS Status | Compliant (Green) |
| Packaging | Tape & Reel (R suffix) |
| Lifecycle Status | Active |
ATMEGA48PV-10MUR Pin Configuration
| Pin 1 | PD3 — Port D bit 3 / digital I/O |
| Pin 2 | PD4 — Port D bit 4 / XCK (USART external clock) / digital I/O |
| Pin 3 | GND — Ground |
| Pin 4 | VCC — Digital supply voltage |
| Pin 5 | GND — Ground |
| Pin 6 | VCC — Digital supply voltage |
| Pin 7 | PB6 — XTAL1 / TOSC1 - crystal oscillator input / timer oscillator |
| Pin 8 | PB7 — XTAL2 / TOSC2 - crystal oscillator output / timer oscillator |
| Pin 9 | PD5 — Port D bit 5 / T1 (timer/counter1 external input) |
| Pin 10 | PD6 — Port D bit 6 / AIN0 (analog comparator positive input) |
| Pin 11 | PD7 — Port D bit 7 / AIN1 (analog comparator negative input) |
| Pin 12 | PB0 — Port B bit 0 / ICP1 (input capture) / digital I/O |
| Pin 13 | PB1 — Port B bit 1 / OC1A (timer1 output compare) / digital I/O |
| Pin 14 | PB2 — Port B bit 2 / SS (SPI slave select) / OC1B / digital I/O |
| Pin 15 | PB3 — Port B bit 3 / MOSI (SPI master output) / OC2A / digital I/O |
| Pin 16 | PB4 — Port B bit 4 / MISO (SPI master input) / digital I/O |
| Pin 17 | PB5 — Port B bit 5 / SCK (SPI clock) / digital I/O |
| Pin 18 | AVCC — ADC supply voltage |
| Pin 19 | ADC6 — ADC input channel 6 (analog input only) |
| Pin 20 | AREF — ADC analog reference input |
| Pin 21 | GND — Ground |
| Pin 22 | ADC7 — ADC input channel 7 (analog input only) |
| Pin 23 | PC0 — Port C bit 0 / ADC8 / SCL (TWI clock) / digital I/O |
| Pin 24 | PC1 — Port C bit 1 / ADC9 / SDA (TWI data) / digital I/O |
| Pin 25 | PC2 — Port C bit 2 / ADC10 / TCK (JTAG test clock) / digital I/O |
| Pin 26 | PC3 — Port C bit 3 / ADC11 / TMS (JTAG test mode select) / digital I/O |
| Pin 27 | PC4 — Port C bit 4 / ADC12 / TDO (JTAG test data output) / digital I/O |
| Pin 28 | PC5 — Port C bit 5 / ADC13 / TDI (JTAG test data input) / digital I/O |
| Pin 29 | PC6 — RESET - active-low reset input (shared with GPIO via fuse) |
| Pin 30 | PD0 — Port D bit 0 / RXD (USART receive) / digital I/O |
| Pin 31 | PD1 — Port D bit 1 / TXD (USART transmit) / digital I/O |
| Pin 32 | PD2 — Port D bit 2 / INT0 (external interrupt 0) / digital I/O |
Typical Applications
ATMEGA48PV-10MUR is suitable for 6 applications: Battery-Powered Sensor Nodes, Industrial Control Panels, Home Automation Devices, LED Lighting Controllers, Consumer Appliance User Interfaces, Portable Handheld Instruments.
Battery-Powered Sensor Nodes
The ATMEGA48PV-10MUR fits battery-powered sensor nodes because its picoPower sleep modes draw microamp-level currents in power-down while retaining the watchdog timer and pin-change interrupts as wake sources, and its 1.8V supply floor allows direct operation from two alkaline cells or a single lithium cell through the full discharge curve. In a typical node the MCU sleeps between ADC samples, wakes on timer overflow or sensor interrupt, converts a 10-bit ADC reading on one of up to 8 analog channels, and transmits over TWI or SPI to a radio module. Keeping active bursts short at 10MHz plus long power-down intervals yields multi-year coin-cell life, a trade-off far better than sleeping 32-bit MCUs at similar cost.
Recommended
Industrial Control Panels
In industrial control panels the ATMEGA48PV-10MUR provides the -40C to +85C industrial temperature rating, a brown-out detector, and a watchdog timer that together guard against brownouts and lockups in electrically noisy factory environments. Operating at 5V gives full 10MHz performance and 5V-tolerant logic levels compatible with legacy PLC I/O, relays, optocoupler inputs, and industrial sensors. The 23 GPIO lines drive LED status banks and read limit-switch inputs directly, while the SPI and TWI interfaces connect EEPROMs, RTCs, and human-interface peripherals. The 10-bit ADC digitizes 0-5V analog sensor signals without external level shifting, reducing bill-of-materials count in DIN-rail controller boards.
Recommended
Home Automation Devices
The ATMEGA48PV-10MUR serves wall-switch, dimmer, and plug-in home automation products where standby power limits apply. Its picoPower power-down mode with pin-change interrupt wakeup lets the MCU sleep between button presses, while the asynchronous timer keeps a timebase running in power-save mode for scheduling and soft-start functions. The TWI interface drives touch controllers and I/O expanders, and 5V GPIO with sufficient drive directly keys triac optocouplers for lighting loads. At 4KB flash, a full Z-Wave- or RF-remote-style button-handler plus RF protocol front-end fits comfortably, and the same 32-VQFN footprint accepts the ATMEGA48PA-MUR for the newest silicon without a layout revision.
Recommended
LED Lighting Controllers
LED lighting controllers benefit from the ATMEGA48PV-10MUR's three timer/counters with compare modes, which generate multi-channel hardware PWM for dimming without CPU intervention, leaving firmware headroom for DMX, DALI, or infrared protocol handling inside 4KB flash. The 5V-tolerant GPIO drives MOSFET gate drivers and constant-current LED driver ICs directly, and the 10-bit ADC reads potentiometer or ambient-light inputs for closed-loop brightness control. The 5x5 mm VQFN footprint fits the cramped PCB space of LED bulb and downlight drivers, and the 1.8V-5.5V supply range tolerates supply sag on low-cost capacitive-drop power supplies common in retrofit lamps.
Recommended
Consumer Appliance User Interfaces
Consumer appliance control boards use the ATMEGA48PV-10MUR to scan membrane keypads, drive 7-segment or LED-matrix displays via multiplexed timers, and monitor temperature with the internal 10-bit ADC. The picoPower sleep modes satisfy standby-power regulations for appliances that idle most of the day, waking on key-press or periodic timer events. The 256B EEPROM stores user settings and calibration data across power cycles without external nonvolatile memory. Because appliances are cost-engineered in high volumes, the sub-$1.01 price point at 100 pieces (as of 2026-09-18) and availability across 9 distributors make this MCU a low-risk volume component, with the ATMEGA48PA-MUR offering a same-pinout cost-down path.
Recommended
Portable Handheld Instruments
Handheld measurement tools such as multimeters, thermometers, and testers exploit the ATMEGA48PV-10MUR's wide 1.8V to 5.5V supply range, which tolerates battery discharge from two AA cells without a regulator, and its sub-microamp power-down current that extends shelf life. The 10-bit ADC with internal reference and ADC noise reduction sleep mode performs mid-accuracy measurements, while the SPI interface talks to external precision ADCs or display drivers when higher resolution is needed. The industrial -40C to +85C rating covers field use, and the 32-VQFN (5x5 mm) package with 0.45 mm pitch fits pen-style form factors where board area is the primary constraint on industrial design.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA48PV-10MUR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA48PV-10MMU | ATMEGA48PA-MUR | ATMEGA48P-20MMU | ATMEGA328P-MMHR |
|---|---|---|---|---|---|
| Package | 32-VQFN (5x5 mm) | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 4 KB | 4 KB | 4 KB | 4 KB | 32 KB |
| SRAM | 512 B | 512 B | 512 B | 512 B | 2 KB |
| Max Clock Speed | 10 MHz | 10 MHz | 20 MHz | 20 MHz | 20 MHz |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.7 V to 5.5 V | 1.8 V to 5.5 V |
| picoPower Technology | Yes | Yes | Yes (newer die) | No | Yes |
| Packaging / Availability | Tape & Reel, in stock (as of 2026-09-18) | Tray | Tape & Reel, active | Tray | Tape & Reel, active |
Key Differentiators
- picoPower technology for lowest standby current (vs ATMEGA48P-20MMU)
- Newer silicon available as drop-in cost-down (vs ATMEGA48PA-MUR)
- Same-footprint memory upgrade path (vs ATMEGA328P-MMHR)
Design Notes
The 32-VQFN (5x5 mm, 0.45 mm pitch) footprint requires an exposed-land pattern with via-in-pad or dog-bone fanout for the inner rows; the MLF center pad must be connected to GND for both electrical return and heat spreading. Use at least a 4x4 via array under the die pad tied to the ground plane. Because pins 3, 5, and 21 are all GND and pins 4 and 6 are VCC, place a 100 nF ceramic decoupling capacitor within 2 mm of each supply pin group plus one 10 uF bulk capacitor. Verify the footprint against the Microchip MLF/MCU application note recommended land pattern before releasing fabrication.
Supply voltage and clock speed are coupled: while the part operates from 1.8V to 5.5V, the full 10MHz rating is only guaranteed near the upper voltage range; below that, use the speed-versus-VCC curve in the manufacturer datasheet to derate the clock or select a slower safe frequency. For battery designs, enable the brown-out detector (BOD) with a threshold matched to the battery chemistry, or use BOD-in-sleep so that flash writes below safe voltage are prevented. Estimated: a power-down current budget in the microamp range means every leakage path - pull-up resistors, LED indicators, external I2C pull-ups - dominates the total; audit each peripheral at schematic time.
Pin 29 (PC6/RESET) is dedicated to reset unless the RSTDISBL fuse is programmed; once disabled, only high-voltage parallel programming can restore the device, so never set RSTDISBL unless debug access is permanently surrendered. Also note the clock-source fuses: shipping parts default to the internal 8MHz RC oscillator divided by 8 (1MHz), so a board designed around an external crystal will not run at full speed until fuse bits are set. Design the RESET network (10k pull-up, optional 100 nF to GND) and leave ISP header pads on the PCB even in production layouts.
Compliance Information
Listed as GREEN package (lead-free, halogen-free) per distributor datasheet summaries. REACH and conflict-minerals statements not present in provided data.
