ATMEGA165PA-MN - 16KB Flash 16MHz AVR MCU | Microchip
部品番号: ATMEGA165PA-MN ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.85 | $38.50 |
| 100 | $3.45 | $345.00 |
| 500 | $3.1 | $1,550.00 |
| 1,000 | $2.75 | $2,750.00 |
ATMEGA165PA-MN 概要
An 8-bit microcontroller (MCU) is a self-contained computing chip that integrates a processor core, program memory, data memory, and peripherals on a single die. Within the power-management and embedded-systems hierarchy, the AVR family sits in the 8-bit MCU class, competing with architectures such as PIC, 8051, and STM8, and is typically paired with power regulators, communication interfaces, and sensor front-ends in a complete embedded design.
Key features of the ATMEGA165PA-MN include the advanced AVR RISC architecture executing 133 powerful instructions, most in a single clock cycle, 32 general-purpose working registers, and read-while-write ISP FLASH that simplifies firmware updates in the field. The picoPower technology enables very low power consumption in idle and power-down modes, making it suited to battery-operated designs.
On the technical side, the device integrates a JTAG interface for boundary-scan and on-chip debugging plus In-Circuit Serial Programming (ICSP), flexible timer/counters, a USART for serial communication, an SPI interface, and a 10-bit ADC. The AVR Harvard architecture fetches instructions and data over separate buses, allowing most instructions to execute in one 62.5 ns cycle at 16MHz, which delivers roughly 16 MIPS of throughput.
Typical applications include industrial control and automation nodes, consumer appliances, and battery-powered portable instruments, where the combination of 16KB self-programmable FLASH, 105C operation, and picoPower sleep modes fits both cost-sensitive and low-power requirements.
A key design consideration is the QFN exposed-pad package: the pad must be soldered to a grounded PCB land pattern for thermal dissipation and reliable operation at 105C. Programming and debugging use two I/O pins plus reset via ICSP, so reserve these pins during layout.
This page synthesizes verified distributor data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: ATMEGA165PA-MN — 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: ATMEGA165PA-MN （同一形状・フットプリント） — 相違点: Package, EEPROM, SRAM, Supply Voltage Range, Core Architecture.
クイック比較ツール — 並列比較する代替部品を選択:
ATMEGA1281V-8MUR
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$4.02 / 個
データシートを見る →ATMEGA1281-16MUR
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$8.78 / 個
データシートを見る →ATMEGA325PA-MUR
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.65 / 個
データシートを見る →ATMEGA3250PA-MUR
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATMEGA165PA-MNR
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →ATMEGA165PA-MN 最大定格＆電気的特性
| Core Architecture | AVR 8-bit RISC |
| データバス幅 | 8 Bit |
| Flash Memory | 16KB (8K x 16) ISP FLASH |
| EEPROM | 512B |
| SRAM | 1KB |
| 最大クロック周波数 | 16 MHz |
| Supply Voltage Range | 2.7 V to 5.5 V |
| General Purpose I/O | 54/69 lines (54 available in 64-pin package) |
| Working Registers | 32 general purpose |
| Instruction Set | 133 instructions, mostly single-cycle |
| Debug/Programming Interface | JTAG (boundary-scan, on-chip debug) and ICSP |
| Low Power Technology | picoPower |
| 動作温度 | -40C to +105C |
| パッケージ | 64-QFN (9x9 mm) MLF/VQFN with exposed pad, Green |
| 実装タイプ | Surface Mount |
| ライフサイクル状態 | ACTIVE |
| RoHS ステータス | Green (RoHS compliant) |
ATMEGA165PA-MN 64-qfn (9x9 mm) mlf/vqfn with exposed pad, green ピン配置ガイド
ATMEGA165PA-MN (64-qfn (9x9 mm) mlf/vqfn with exposed pad, green 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: ATMEGA165PA-MN.
詳細は データシート をご参照ください。
主な用途
ATMEGA165PA-MN の用途: 6 件s: Industrial Control and Automation, Battery-Powered Portable Instruments, Consumer Appliance Control Boards, Sensor Nodes and IoT Endpoints, Test and Measurement Equipment, Motor Control and Power Subsystems.
Industrial Control and Automation
The ATMEGA165PA-MN fits industrial control nodes because its -40C to +105C operating range covers enclosed control cabinets, and its 54 GPIO lines drive relays, indicators, and read switches without external port expanders. The AVR core executes most of its 133 instructions in a single 16MHz clock cycle, delivering deterministic scan loops for PLC-style I/O handling. The USART links to Modbus-style serial networks while the SPI bus attaches ADCs or EEPROM. Because the 2.7V to 5.5V supply range tolerates noisy industrial rails, a simple regulator suffices. Designers should budget JTAG/ICSP pins for field firmware updates via the on-chip interfaces.
おすすめ
Battery-Powered Portable Instruments
PicoPower technology makes the ATMEGA165PA-MN well suited to battery-operated meters and data loggers: sleep modes cut average current dramatically between measurement bursts, and the 2.7V minimum supply allows operation from three alkaline cells or a single lithium cell with regulation. The integrated 10-bit ADC reads sensor channels directly, timers generate precision wake-up intervals, and the 512B EEPROM stores calibration constants without external memory. A typical topology sleeps in power-down with a watchdog or timer wake-up, samples through the ADC, and transmits over USART. The trade-off is the modest 1KB SRAM, which limits buffering for long logging sessions.
おすすめ
Consumer Appliance Control Boards
Appliance front panels benefit from the ATMEGA165PA-MN combination of 16KB self-programmable FLASH for feature-rich firmware, 54 GPIO for keypads, LEDs, and displays, and a 105C rating for hot enclosures near motors or heating elements. The AVR single-cycle RISC core handles button debouncing, display refresh, and AC zero-cross timing in software without a second timer IC, while the USART or SPI communicates with a main controller. Read-while-write FLASH enables field firmware updates over the serial link. Designers should note the QFN exposed pad must be grounded on the PCB for reliable thermal performance in sealed appliance housings.
おすすめ
Sensor Nodes and IoT Endpoints
For wired sensor endpoints, the ATMEGA165PA-MN offers a compact single-chip solution: the 10-bit ADC digitizes analog sensors, SPI connects external flash or RF modules, and the USART streams readings upstream. Sleep-mode operation from picoPower silicon keeps node current in the microamp range between samples, and the wide 2.7V to 5.5V input range accommodates scavenged or unregulated supplies. A common architecture uses a timer wake-up, burst ADC sampling, SPI transfer to a radio module, then return to power-down. The 16KB FLASH accommodates a communication stack plus application logic, though developers must manage the 1KB SRAM carefully.
おすすめ
Test and Measurement Equipment
Bench accessories and handheld testers use the ATMEGA165PA-MN for its JTAG on-chip debugging, which shortens firmware iteration during development, and its deterministic single-cycle instruction execution, which keeps timing loops predictable for measurement sequencing. The 10-bit ADC captures analog inputs while the SPI interfaces precision converters when higher resolution is needed, and the USART provides PC connectivity for data upload. The 105C rating tolerates enclosed, passively cooled instruments. Field units can be re-flashed in-circuit through ICSP, so service technicians update calibration firmware without disassembly - a practical advantage over socketed-program parts.
おすすめ
Motor Control and Power Subsystems
Small motor-control boards use the ATMEGA165PA-MN timers to generate PWM waveforms with software sequencing, while GPIO coordinates direction and enable signals. Single-cycle instruction execution gives the interrupt latency determinism needed for commutation timing in fan and pump controllers. The 5.5V maximum supply supports direct drive of MOSFET gate-driver ICs from the same rail, simplifying the power tree, and the USART reports speed and fault telemetry to a host controller. Operating to 105C suits motor housings where ambient temperatures rise under load. The 64-QFN package keeps the controller footprint small on dense driver PCBs.
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: ATMEGA165PA-MN — 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 | ATMEGA1281V-8MUR | ATMEGA1281-16MUR | ATMEGA325PA-MUR | ATMEGA165PA-MNR |
|---|---|---|---|---|---|
| Package | 64-QFN (9x9 mm) MLF, exposed pad | 64-QFN (9x9 mm) MLF - same | 64-QFN (9x9 mm) MLF - same | 64-QFN (9x9 mm) MLF - same | 64-QFN (9x9 mm) MLF - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16KB | 128KB | 128KB | 32KB | 16KB |
| SRAM | 1KB | 8KB | 8KB | 2KB | 1KB |
| Maximum Clock Frequency | 16 MHz | 8 MHz | 16 MHz | 16 MHz | 16 MHz |
| Packing | Tray (MN) | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
主な差別化要因
- Lowest memory footprint in the same 64-MLF drop-in group （vs ATMEGA1281-16MUR)
- Full 16MHz speed grade with 105C rating （vs ATMEGA1281V-8MUR)
- Tray packing suits prototyping and low-volume builds （vs ATMEGA165PA-MNR)
設計ノート
The ATMEGA165PA-MN uses a 64-QFN (9x9 mm) package with an exposed pad on the bottom. Solder this pad to a grounded PCB land pattern with an array of thermal vias; it provides both the primary heat path for 105C operation and electrical grounding for the die. Standard non-solder-mask-defined (NSMD) pads around 0.5 mm pitch with proper stencil apertures prevent solder bridging on the fine-pitch perimeter pads.
Decouple the VCC/AVCC pins with 100 nF ceramic capacitors placed within a few millimeters of each pin, plus one bulk capacitor of 4.7 uF to 10 uF near the device. Connect AVCC to VCC through a low-pass filter (for example a 10 ohm resistor or ferrite plus 100 nF) when ADC accuracy matters, since digital switching noise on AVCC degrades 10-bit ADC results. Per AVR datasheet practice, keep the analog ground return path separate until a single-point star connection.
Reserve the JTAG pins (along with reset) for in-circuit debugging and ICSP programming - tying them to other functions can lock out reprogramming, and JTAG must be disabled via fuse if those pins are needed as GPIO. Also verify the clock-frequency-versus-VCC safe operating region from the Microchip datasheet: running at 16MHz requires sufficient supply headroom, and brown-out detection should be enabled via fuse to prevent FLASH corruption during slow power ramps.
コンプライアンス情報
Listed as a Green package by Microchip/distributor data, indicating RoHS-compliant lead-free construction. REACH, halogen-free, and conflict-minerals status not stated in the provided data.
