ATMEGA324PV-10MUR - 8-bit AVR MCU 32KB 10MHz 1.8V | Microchip
部品番号: ATMEGA324PV-10MUR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.16 | $2.16 |
| 10 | $2.05 | $20.50 |
| 100 | $1.86 | $186.00 |
| 500 | $1.68 | $840.00 |
| 1,000 | $1.52 | $1,520.00 |
ATMEGA324PV-10MUR 概要
An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle, positioning it within the broader hierarchy of embedded processing ICs: microcontroller -> 8-bit MCU -> AVR family -> ATmega series. MCUs of this class integrate program memory, data memory, timers, and communication peripherals on a single die, replacing multi-chip solutions in cost- and power-sensitive designs.
Key features include read-while-write flash operation for in-system self-programming, 131 powerful instructions mostly executed in one cycle, a 10-bit ADC with up to 8 channels, two flexible 8-bit timers and one 16-bit timer with compare modes and PWM, and two USARTs plus byte-oriented Two-Wire Interface (I2C) and SPI serial ports. The picoPower technology delivers very low power consumption in sleep modes, making it well suited to battery applications, and the -V suffix supports a wide 1.8V to 5.5V supply range.
Technically, the advanced RISC architecture pairs 32 general-purpose working registers directly with the ALU, allowing a single instruction to execute in one clock cycle and achieving throughputs approaching 1 MIPS per MHz - at 10MHz roughly 10 MIPS. The real-time counter and power management modes (idle, power-down, power-save) enable duty-cycled designs with microamp-level sleep currents.
Typical applications include industrial sensor nodes and low-voltage battery-powered instruments that exploit the 1.8V operation, consumer appliance control boards using the dual USART and PWM motor-control timers, and embedded systems requiring in-field firmware upgrade via ISP flash read-while-write.
Design consideration: the 10MHz speed grade limits the clock versus the faster ATMEGA324P-20MUR, so verify timing headroom for UART baud rates and PWM resolution before selecting the -V variant.
This page adds value beyond the datasheet by synthesizing drop-in family cross-references, distributor pricing, and practical design notes in one AI-searchable reference.
ドロップイン代替品: ATMEGA324PV-10MUR — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ATMEGA324PV-10MUR （同一形状・フットプリント） — 相違点: Package, RoHS Status, Timers/Counters, Maximum Clock Frequency, General Purpose I/O.
クイック比較ツール — 並列比較する代替部品を選択:
ATMEGA324PV-10MU
✅ ドロップイン✓ 在庫あり
$5.98 / 個
データシートを見る →ATMEGA324P-20MUR
✅ ドロップイン✓ 在庫あり
$1.86 / 個
データシートを見る →ATMEGA324PA-MU
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.05 / 個
データシートを見る →ATMEGA324PA-MCHR
✅ ドロップイン✓ 在庫あり
$2.55 / 個
データシートを見る →ATMEGA644PV-10MU
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$4.88 / 個
データシートを見る →ATMEGA324PV-10MUR 最大定格＆電気的特性
| Core Architecture | 8-bit AVR RISC |
| Program Memory Size | 32 KB (16K x 16) Flash |
| EEPROM Size | 1 KB |
| SRAM Size | 2 KB |
| 最大クロック周波数 | 10 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V |
| General Purpose I/O | 32 I/O lines |
| Timers/Counters | Two 8-bit, one 16-bit with compare modes and PWM |
| Communication Interfaces | 2x USART, SPI, TWI (I2C) |
| ADC Resolution | 10-bit |
| パッケージ | 44-VQFN (7x7 mm) Exposed Pad |
| 実装タイプ | Surface Mount |
| Series | AVR ATmega picoPower |
| Low Power Technology | picoPower |
| ライフサイクル状態 | ACTIVE (newer device available: ATMEGA324PA) |
ATMEGA324PV-10MUR 44-vqfn (7x7 mm) exposed pad ピン配置ガイド
ATMEGA324PV-10MUR (44-vqfn (7x7 mm) exposed pad パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: ATMEGA324PV-10MUR.
詳細は データシート をご参照ください。
主な用途
ATMEGA324PV-10MUR の用途: 6 件s: Battery-Powered Sensor Nodes, Industrial Control and Automation, Consumer Appliance Controllers, Portable Medical and Health Devices, Embedded Networking and Gateways, Hobby, Education, and Prototyping.
Battery-Powered Sensor Nodes
The ATMEGA324PV-10MUR fits battery-powered sensor nodes because its 1.8V to 5.5V supply range allows direct operation from two alkaline cells or one lithium cell without a boost converter, and picoPower sleep modes cut standby current to microamp levels. In a typical node, the MCU wakes from power-save mode via the real-time counter, reads a sensor over TWI (I2C) or the 10-bit ADC, computes at 10MHz, and transmits through a USART-connected radio. Placing a 100nF ceramic cap at each VCC pin and using the internal RC oscillator during idle periods keeps the power budget minimal. Unlike higher-speed MCUs, the 10MHz grade lowers dynamic current, extending field battery life in duty-cycled designs.
おすすめ
Industrial Control and Automation
In industrial control boards, the ATMEGA324PV-10MUR's 32 I/O lines drive relays and read limit switches, while its two USARTs link a human-machine interface and an RS-485 transceiver simultaneously. The 16-bit timer generates PWM for motor or heater control with 10MHz clock resolution, and the 10-bit ADC samples analog setpoint inputs across 8 channels on PORTA. The 32KB flash with read-while-write enables in-field firmware updates without stopping the control loop. Operating from a 5V industrial rail with headroom for brownouts, the device tolerates noisy environments when VCC is decoupled with 100nF caps and the ADC reference is filtered at AREF. Its wide voltage range also supports 3.3V logic coexistence on mixed boards.
おすすめ
Consumer Appliance Controllers
Consumer appliances - coffee machines, air purifiers, small HVAC units - use the ATMEGA324PV-10MUR as the main controller because it integrates everything needed on one chip: two USARTs for display modules and external EEPROM, TWI for touch or sensor front-ends, and multiple PWM outputs for fan and motor speed control. The 32KB flash holds UI logic plus OTA-updatable parameters, while 1KB EEPROM stores calibration and user settings across power cycles. Running from a 5V linear-derived supply, the 10MHz clock delivers roughly 10 MIPS, ample for button scanning, display refresh, and PID control. The VQFN-44 exposed-pad package gives good thermal and ground performance in compact, cost-sensitive PCBs.
おすすめ
Portable Medical and Health Devices
Portable health monitors benefit from the ATMEGA324PV-10MUR's combination of low-voltage operation and measurement peripherals. The 10-bit ADC with up to 8 channels digitizes physiological sensor bridges, the TWI bus reads digital temperature or pulse-oximeter front-ends, and a USART streams data to a Bluetooth module. PicoPower power-down mode preserves settings while the device waits between measurement intervals, and operation down to 1.8V sustains functionality as the battery discharges - critical for devices that must warn before shutdown. The 32KB flash supports signal-processing routines such as digital filtering, and the 16-bit timer provides precise sample-interval generation. Designers should budget analog front-end noise filtering ahead of the ADC for clinical-grade resolution.
おすすめ
Embedded Networking and Gateways
With two independent USARTs plus SPI and TWI on one chip, the ATMEGA324PV-10MUR serves as a low-cost protocol gateway: for example, translating between an RS-485 field bus on USART0 and a wireless module on USART1, or bridging SPI peripherals to a TWI sensor network. The 2KB SRAM buffers packet payloads, and 32KB flash holds dual protocol stacks with room for a bootloader enabling field updates. At 10MHz the AVR core handles 9600-115200 baud streams on both ports concurrently with modest interrupt load. Developers should enable the USART frame-error flags and use ring buffers to prevent overrun during burst traffic. The 5V-tolerant I/O simplifies interfacing with legacy industrial transceivers.
おすすめ
Hobby, Education, and Prototyping
The ATmega324 family is a staple in education and prototyping because the AVR architecture is well documented, supported by Arduino-compatible cores and open toolchains, and programmed with inexpensive ISP hardware. The ATMEGA324PV-10MUR's 44-pin VQFN offers the largest I/O count in the class (32 lines), four ports for simultaneous LCD, keypad, and motor experiments, and dual USARTs so one port can host debug logging while the other runs project firmware. Its 1.8V operation teaches real-world power design concepts, and read-while-write flash supports bootloader-based iteration without a dedicated programmer. For students soldering by hand, the tray-packaged ATMEGA324PV-10MU variant is easier to handle than tape-and-reel.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ATMEGA324PV-10MUR — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ATMEGA324PV-10MU | ATMEGA324P-20MUR | ATMEGA324PA-MU | ATMEGA644PV-10MU |
|---|---|---|---|---|---|
| Package | 44-VQFN (7x7 mm) Exposed Pad | 44-VQFN (7x7 mm) - same | 44-VQFN (7x7 mm) - same | 44-VQFN (7x7 mm) - same | 44-VQFN (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 64 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 4 KB |
| Max Clock Frequency | 10 MHz | 10 MHz | 20 MHz | 20 MHz | 10 MHz |
| GPIO Count | 32 | 32 | 32 | 32 | 32 |
| Lifecycle / Recommendation | Active; newer ATMEGA324PA available | Active; tray variant | Active; 20MHz grade | Active; recommended for new designs | Active; higher-memory option |
主な差別化要因
- Widest supply range in the ATmega324 family （vs ATMEGA324P-20MUR)
- Best sourcing continuity via family cross-references （vs ATMEGA324PV-10MU)
- picoPower low-power technology （vs ATMEGA324PA-MU)
設計ノート
Decouple all VCC pins with 100nF ceramic capacitors placed within 5 mm of each pin, plus one 4.7uF-10uF bulk capacitor per supply domain. When using the 1.8V low end of the range, derate the clock frequency per the AVR frequency-vs-voltage curve - running 10MHz below roughly 2.7V violates the safe operating region. Estimated: at 10MHz and 5V with typical active current, a sleep-dominant duty cycle of 1% active reduces average consumption approximately 100x versus continuous operation.
Connect the VQFN exposed pad to a solid ground plane with an array of thermal vias; this is both the main thermal path and the ground return for the ADC and USARTs. Keep the analog supply (AVCC) filtered through an LC or ferrite bead from the digital rail, and route AREF with a 100nF capacitor to AGND away from switching traces. Place the crystal within 10 mm of XTAL1/XTAL2 with short guard traces and a local ground ring.
Do not run the external crystal above the 10MHz speed grade of this -10 suffix part; the faster ATMEGA324P-20MUR must be used for 16-20MHz designs. Verify that ISP programming does not conflict with SPI bus peripherals (hold SS high during reset). Also note lifecycle risk: digchip marks ATMEGA324PV with 'newer device available ATMEGA324PA' - qualify the ATMEGA324PA-MU as second source in new designs to avoid future sourcing gaps.
コンプライアンス情報
Compliance status not explicitly stated in the retrieved web data; verify against the official Microchip product page and its environmental data. Not an automotive AEC-Q100 part.