ATMEGA325PV-10MUR - 8-bit AVR MCU 32KB 10MHz | Microchip
Référence : ATMEGA325PV-10MUR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $5.99 | $5,99 |
| 10 | $5.39 | $53,90 |
| 100 | $4.79 | $479,00 |
| 500 | $4.32 | $2 160,00 |
| 1 000 | $3.89 | $3 890,00 |
ATMEGA325PV-10MUR Présentation
An 8-bit microcontroller is a single-chip computer that integrates a CPU core, program memory, data memory, and peripherals such as timers, UART, SPI, and ADC on one silicon die. Within the power-management hierarchy of embedded systems, the microcontroller sits at the top level of control: an MCU such as this AVR device supervises sensors, drives actuators, and manages lower-level power and interface ICs. The AVR ATmega family uses a modified Harvard architecture with single-cycle RISC instruction execution, making it one of the most widely taught and deployed 8-bit controller families in the industry.
Key features include the 32KB self-programmable FLASH with boot-code capability, 2KB of internal SRAM for data buffers, and 1KB of non-volatile EEPROM for parameter storage. The low-voltage V-grade operation from 1.8V supports single-cell battery and energy-harvesting designs, while the 10 MHz maximum clock targets low-EMI, low-power applications rather than maximum throughput. The 54 general-purpose I/O lines, USART, SPI, and JTAG debug interface provide full connectivity for industrial designs.
Technically, the ATmega325P executes most instructions in a single clock cycle through its pipelined RISC core with 32 general-purpose working registers. The P-suffix denotes the picoPower process generation with reduced leakage, and the V suffix indicates the wide 1.8V-5.5V operating voltage range. Peripherals typically include an 8-channel 10-bit ADC, multiple 8-bit and 16-bit timers with PWM, and on-chip debug via JTAG (per family architecture; refer to the manufacturer datasheet for exact peripheral counts).
Typical applications include battery-powered instruments, industrial sensor nodes, building automation controllers, and hand-held metering equipment where wide supply range and mature tool support matter more than raw processing speed.
Design consideration: the 64-QFN exposed-pad package requires a well-connected thermal pad for reliable grounding, and V-grade parts must satisfy power-supply derating rules at high clock speeds above the 10 MHz ceiling at reduced VCC.
This page synthesizes distributor pricing, drop-in same-family alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour ATMEGA325PV-10MUR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATMEGA325PV-10MUR (même facteur de forme et même empreinte) — différant par Package, RoHS Status, Number of I/O, Instructions, Packaging.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATMEGA325P-20MUR
✅ Remplacement direct✓ En stock
$2.86 / unité
Voir la fiche technique →ATMEGA325PA-MUR
✅ Remplacement direct✓ En stock
$1.65 / unité
Voir la fiche technique →ATMEGA325PA-AUR
✅ Remplacement direct✓ En stock
$3.9 / unité
Voir la fiche technique →ATMEGA325PV-10MU
✅ Remplacement direct✓ En stock
$2.19 / unité
Voir la fiche technique →ATMEGA3250PA-AUR
✅ Remplacement direct✓ En stock
$2.98 / unité
Voir la fiche technique →ATMEGA324PA-MCHR
✅ Remplacement direct✓ En stock
$2.55 / unité
Voir la fiche technique →ATMEGA325PV-10MUR Valeurs maximales et caractéristiques électriques
| Core | AVR 8-bit RISC |
| Series | AVR ATmega |
| Flash Memory | 32KB (16K x 16) |
| SRAM | 2KB |
| EEPROM | 1KB |
| Fréquence d'horloge maximale | 10 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Boîtier | 64-QFN (9x9 mm) with Exposed Pad |
| Nombre de broches | 64 |
| Number of I/Os | 54 |
| Température de fonctionnement | -40C to +85C (Industrial) |
| Type de montage | Surface Mount |
| Packaging | Tape & Reel (T&R) |
| Statut RoHS | Compliant (Green) |
| Programmability | In-System Programmable FLASH |
Guide de configuration des broches du ATMEGA325PV-10MUR 64-qfn (9x9 mm) with exposed pad
Configuration des broches du ATMEGA325PV-10MUR (boîtier 64-qfn (9x9 mm) with exposed pad). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour ATMEGA325PV-10MUR.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATMEGA325PV-10MUR convient pour 6 applications: Battery-Powered Instruments, Industrial Sensor Nodes, Building Automation Controllers, Hand-Held Metering Equipment, Consumer Appliance Control, Educational and Prototyping Platforms.
Battery-Powered Instruments
The ATMEGA325PV-10MUR fits battery-powered portable instruments because its 1.8V-5.5V V-grade supply range supports single-cell and multi-cell chemistries without a boost regulator, and the picoPower P-process generation minimizes leakage in sleep states. A 10 MHz clock is ample for metering math and display updates while drawing less dynamic current than 20 MHz parts. Powered from two AA cells through the full discharge curve, the device runs the ADC-scan, UI, and communication tasks directly, extending shelf life versus fixed 5V designs.
Recommandé
Industrial Sensor Nodes
In industrial sensing, the ATMEGA325PV-10MUR's industrial temperature rating, 54 I/O lines, and robust 5V noise margin make it a dependable node controller. The 32KB FLASH stores control logic plus OTA-style field update bootloaders, while the 1KB EEPROM retains calibration constants across power cycles. Its USART and SPI interfaces link to RS-485 transceivers and external ADCs, and the 64-QFN exposed-pad package bonds to a ground pour that improves EMI robustness on noisy factory floors with motor drives nearby.
Recommandé
Building Automation Controllers
Building automation panels benefit from the ATMEGA325PV-10MUR's generous 54 GPIOs for driving relays, reading switches, and scanning keypads, all from one 9x9 mm QFN. The 10 MHz grade keeps radiated emissions low for wall-box installations near Class-B EMC limits, while the wide 1.8V-5.5V supply range tolerates sagging 5V wall-wart rails. The 1KB EEPROM stores setpoints and schedules without external non-volatile memory, reducing BOM cost and board area in distributed room-controller designs.
Recommandé
Hand-Held Metering Equipment
Hand-held energy and utility meters use the ATMEGA325PV-10MUR for its balance of memory and power: 32KB FLASH holds multi-phase measurement firmware and LCD drivers logic, 2KB SRAM buffers accumulation registers, and the V-grade operation runs directly from a 3.6V lithium cell. The 10-bit ADC in the ATmega325 family performs energy sampling, and picoPower sleep modes between samples stretch battery service intervals. The QFN exposed pad provides a solid ground reference for accurate analog front-end performance in the field.
Recommandé
Consumer Appliance Control
White-goods and small-appliance controllers value the ATMEGA325PV-10MUR for cost-effective reliability: the mature AVR core has a long, proven field record, and the 64-pin QFN integrates touch-key scanning, triac timing, and UART diagnostics without external controllers. The 10 MHz clock is sufficient for PID temperature loops and display multiplexing, while GREEN/RoHS packaging satisfies global environmental rules. The wide supply range rides through mains-derived supply dips, and the JTAG interface accelerates production-line functional test fixtures.
Recommandé
Educational and Prototyping Platforms
The ATmega325 family is a mainstay of embedded-systems education because the AVR instruction set is simple, freely tooled with avr-gcc and Microchip Studio, and exhaustively documented. The ATMEGA325PV-10MUR's 64-pin QFN suits university capstone boards needing many I/O for multi-peripheral projects - LCDs, keypads, motors, and sensors simultaneously. In-System Programming over SPI lets students reflash boards in-circuit without sockets, and JTAG enables step-level debugging that teaches professional workflows on low-cost hardware platforms.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATMEGA325PV-10MUR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATMEGA325P-20MUR | ATMEGA325PA-MUR | ATMEGA325PV-10MU | ATMEGA325PA-AUR |
|---|---|---|---|---|---|
| Package | 64-QFN (9x9) EP | 64-QFN (9x9) EP - same | 64-QFN (9x9) EP - same | 64-QFN (9x9) EP - same | TQFP-64 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Frequency | 10 MHz | 20 MHz | 20 MHz | 10 MHz | 20 MHz |
| Flash Memory | 32KB | 32KB | 32KB | 32KB | 32KB |
| SRAM | 2KB | 2KB | 2KB | 2KB | 2KB |
| Low-Power Generation | picoPower (P) | picoPower (P) | picoPower A-grade (enhanced) | picoPower (P) | picoPower A-grade (enhanced) |
| Packaging / Delivery | Tape & Reel | Tape & Reel | Tape & Reel | Tray | Tape & Reel |
Principaux différenciateurs
- Lowest speed grade equals lowest dynamic power and EMI in family (vs ATMEGA325P-20MUR)
- Cost-effective mature P-generation process (vs ATMEGA325PA-MUR)
- Full 54 I/O in a compact 9x9 mm QFN (vs ATMEGA324PA-AUR)
Notes de conception
The 64-QFN (9x9) exposed pad is the device's primary ground return. Solder the center pad to a continuous ground plane with an array of thermal vias (e.g., 4x4 via grid); a floating pad causes erratic reset and ADC noise. Pin-1 orientation is marked by the dot at top-left of the footprint. Follow Microchip AVR QFN land-pattern recommendations for stencil aperture design - roughly 50-60% paste coverage on the center pad to avoid tombstoning peripheral pins during reflow.
Because this V-grade part runs 1.8V-5.5V, respect the frequency-versus-voltage derating curve in the datasheet: near 1.8V the safe clock is far below 10 MHz, while 10 MHz is guaranteed only at higher VCC. Decouple each VCC/AVCC pin pair with 100 nF ceramics placed within 2 mm of the pins, plus one bulk 10 uF. Tie AVCC to VCC through an RC filter (e.g., 10 ohm + 100 nF) when ADC accuracy matters. All voltage-margin conclusions here are estimates - verify against the current datasheet derating chart.
Set fuses for the external crystal clock before relying on UART baud accuracy; the internal RC oscillator has percent-level tolerance unsuitable for precise baud rates. Keep the RESET pin pull-up (10 k ohm) and consider enabling the brown-out detector, since slow supply ramp-down with BOD disabled can corrupt EEPROM. When migrating to the ATMEGA325PA variants, re-check register-level picoPower differences; the PA generation changes some sleep-mode and clock-preservation behavior relative to the P generation.
Informations de conformité
Listed as GREEN/ROHS by Atmel-era ordering data and LCSC ('ROHS'); lead-free per Green designation. REACH, halogen-free, and conflict-minerals status require the official Microchip environmental report.
