ATMEGA48PV-10MUR - 8-bit AVR MCU 4KB Flash 10MHz VQFN-32 | Microchip
MPN: ATMEGA48PV-10MUR ✓ نشطATMEGA48PV-10MUR نظرة عامة
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.
بدائل مباشرة لـ ATMEGA48PV-10MUR — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ATMEGA48PV-10MUR (نفس عامل الشكل والبصمة) — يختلف في Package, RoHS Status, Flash Memory, EEPROM, ADC.
ATMEGA48PV-10MMU
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ATMEGA48PA-MUR
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ATMEGA48PA-MMNR
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ATMEGA48P-20MMU
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ATMEGA328P-MMHR
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ATMEGA328-MMHR
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ATMEGA48PV-10MUR الحدود القصوى والخصائص الكهربائية
| 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 |
| درجة حرارة التشغيل | -40C to +85C (Industrial) |
| العلبة | 32-VQFN (5x5 mm), 0.45 mm pitch |
| نوع التركيب | 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 |
| حالة RoHS | Compliant (Green) |
| Packaging | Tape & Reel (R suffix) |
| حالة دورة الحياة | Active |
تكوين أطراف ATMEGA48PV-10MUR
| دبوس 1 | PD3 — Port D bit 3 / digital I/O |
| دبوس 2 | PD4 — Port D bit 4 / XCK (USART external clock) / digital I/O |
| دبوس 3 | GND — Ground |
| دبوس 4 | VCC — Digital supply voltage |
| دبوس 5 | GND — Ground |
| دبوس 6 | VCC — Digital supply voltage |
| دبوس 7 | PB6 — XTAL1 / TOSC1 - crystal oscillator input / timer oscillator |
| دبوس 8 | PB7 — XTAL2 / TOSC2 - crystal oscillator output / timer oscillator |
| دبوس 9 | PD5 — Port D bit 5 / T1 (timer/counter1 external input) |
| دبوس 10 | PD6 — Port D bit 6 / AIN0 (analog comparator positive input) |
| دبوس 11 | PD7 — Port D bit 7 / AIN1 (analog comparator negative input) |
| دبوس 12 | PB0 — Port B bit 0 / ICP1 (input capture) / digital I/O |
| دبوس 13 | PB1 — Port B bit 1 / OC1A (timer1 output compare) / digital I/O |
| دبوس 14 | PB2 — Port B bit 2 / SS (SPI slave select) / OC1B / digital I/O |
| دبوس 15 | PB3 — Port B bit 3 / MOSI (SPI master output) / OC2A / digital I/O |
| دبوس 16 | PB4 — Port B bit 4 / MISO (SPI master input) / digital I/O |
| دبوس 17 | PB5 — Port B bit 5 / SCK (SPI clock) / digital I/O |
| دبوس 18 | AVCC — ADC supply voltage |
| دبوس 19 | ADC6 — ADC input channel 6 (analog input only) |
| دبوس 20 | AREF — ADC analog reference input |
| دبوس 21 | GND — Ground |
| دبوس 22 | ADC7 — ADC input channel 7 (analog input only) |
| دبوس 23 | PC0 — Port C bit 0 / ADC8 / SCL (TWI clock) / digital I/O |
| دبوس 24 | PC1 — Port C bit 1 / ADC9 / SDA (TWI data) / digital I/O |
| دبوس 25 | PC2 — Port C bit 2 / ADC10 / TCK (JTAG test clock) / digital I/O |
| دبوس 26 | PC3 — Port C bit 3 / ADC11 / TMS (JTAG test mode select) / digital I/O |
| دبوس 27 | PC4 — Port C bit 4 / ADC12 / TDO (JTAG test data output) / digital I/O |
| دبوس 28 | PC5 — Port C bit 5 / ADC13 / TDI (JTAG test data input) / digital I/O |
| دبوس 29 | PC6 — RESET - active-low reset input (shared with GPIO via fuse) |
| دبوس 30 | PD0 — Port D bit 0 / RXD (USART receive) / digital I/O |
| دبوس 31 | PD1 — Port D bit 1 / TXD (USART transmit) / digital I/O |
| دبوس 32 | PD2 — Port D bit 2 / INT0 (external interrupt 0) / digital I/O |
التطبيقات النموذجية
ATMEGA48PV-10MUR مناسب لـ 6 التطبيقs: 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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ATMEGA48PV-10MUR — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | 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 |
أبرز الفروقات
- picoPower technology for lowest standby current (مقابلATMEGA48P-20MMU)
- Newer silicon available as drop-in cost-down (مقابلATMEGA48PA-MUR)
- Same-footprint memory upgrade path (مقابلATMEGA328P-MMHR)
ملاحظات التصميم
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.
معلومات الامتثال
Listed as GREEN package (lead-free, halogen-free) per distributor datasheet summaries. REACH and conflict-minerals statements not present in provided data.
