ATMEGA165PV-8MNR - AVR 8-bit MCU 16KB 64-QFN | Microchip
MPN： ATMEGA165PV-8MNR ✓ 啟用中ATMEGA165PV-8MNR 概覽
A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest layer of the embedded systems hierarchy above discrete logic. The AVR architecture uses a Harvard structure with single-cycle instruction execution, allowing roughly 1 MIPS per MHz of clock, which lets designers trade clock speed against power consumption.
Key features of the ATMEGA165PV-8MNR include the 8-bit AVR core executing powerful instructions in a single clock cycle, 16KB Flash with ISP capability, 512B EEPROM for non-volatile parameter storage, 1KB internal SRAM, an on-chip 10-bit ADC, a 5V-tolerant industrial operating profile rated to 105C, and Green/RoHS-compliant packaging. The 64-QFN exposed-pad package provides excellent thermal dissipation and a low-inductance ground path for mixed analog-digital designs.
Technically, the device belongs to the picoPower-era ATmega165P family, offering low standby currents and brown-out detection suitable for battery-conscious products. The peripheral set typically includes UART/USART, SPI, and hardware interrupt sources supporting real-time embedded control tasks.
Typical applications include industrial control panels, consumer appliance user interfaces, battery-powered metering, and LED or LCD-driven human-machine interfaces where 16KB of code space is sufficient.
For design, ensure a decoupling network of at least one 100nF ceramic capacitor per supply pin pair plus bulk capacitance near the exposed pad, which must be soldered to a solid ground plane for both thermal and EMC performance.
This page synthesizes distributor pricing, drop-in alternatives, comparison tables, and practical design notes not found in the manufacturer datasheet, with pricing as of 2026-09-16.
直接替換替代品，適用於 ATMEGA165PV-8MNR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATMEGA165PV-8MNR （相同外形與佔位） — 差異在於 Package, Operating Temperature, Supply Voltage Range, Core Architecture, Program Memory Size.
ATMEGA165PV-8MN
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA165PA-MN
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATMEGA169PA-MN
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATMEGA169PA-MU
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA165PV-8MNR 最大額定值與電氣特性
| Core Architecture | 8-bit AVR RISC (Harvard) |
| Program Memory Size | 16KB (8K x 16) Flash |
| Program Memory Type | In-System Programmable Flash |
| EEPROM Size | 512B |
| SRAM Size | 1KB |
| 最大時脈頻率 | 8MHz |
| Supply Voltage Range | 1.8V to 5.5V (PV voltage grade) |
| 工作溫度 | -40C to +105C |
| 封裝 | 64-QFN / MLF (9x9 mm) with Exposed Pad |
| 安裝類型 | Surface Mount |
| Packaging | Tape and Reel |
| ADC | 10-bit ADC |
| Communication Interfaces | USART, SPI |
| Series | AVR ATmega |
| RoHS / Green Status | Green, RoHS compliant |
ATMEGA165PV-8MNR 64-qfn / mlf (9x9 mm) with exposed pad 腳位配置指南
ATMEGA165PV-8MNR（64-qfn / mlf (9x9 mm) with exposed pad 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATMEGA165PV-8MNR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATMEGA165PV-8MNR 適用於 6 應用s: Industrial Control Panels, Battery-Powered Metering, Appliance User Interfaces, Embedded Networking Nodes, LED Lighting Controllers, Automotive Body Electronics (Non-Safety).
Industrial Control Panels
The ATMEGA165PV-8MNR fits industrial control panel designs because its 105C operating grade and 1.8V to 5.5V supply range tolerate hot enclosures and noisy 5V industrial rails. The 16KB Flash provides ample space for state-machine logic, MODBUS-style UART protocols, and parameter tables held in the 512B EEPROM, while the 10-bit ADC reads potentiometers and sensor feedback. In a typical panel controller, the AVR runs at 8MHz from a crystal with the USART handling communication to a PLC or HMI and SPI driving a display or I/O expander. The single-cycle AVR core delivers roughly 8 MIPS, sufficient for deterministic scan loops, and the exposed-pad 64-QFN package grounds cleanly to the panel PCB for EMC robustness.
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Battery-Powered Metering
For battery-powered metering products, the ATMEGA165PV-8MNR offers a 1.8V supply floor that lets the MCU run directly from two alkaline cells or a single lithium cell through end-of-discharge, while the 8MHz rating eliminates the need for boost converters at lower voltages. The 512B EEPROM stores calibration and tariff data through millions of power cycles, and the ADC samples current-shunt or divider inputs for energy measurement. The ATmega165P family's power-management modes allow the CPU to sleep between samples, with wake sources from UART and external interrupts, stretching battery life. The 64-QFN exposed pad also improves thermal coupling for temperature-compensated measurement reference circuits on compact meter PCBs.
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Appliance User Interfaces
Appliance user-interface boards - oven keypads, washing-machine displays, coffee-machine controls - are a natural fit for the ATMEGA165PV-8MNR. Its 16KB Flash holds menu logic, debounce routines, and multi-language string tables, while the 1KB SRAM buffers display frames and touch/keypad scan states. The ADC reads NTC temperature sensors and mains-synchronized zero-cross detection for triac control of heaters and motors, and the USART/SPI peripherals link to front-panel displays. Operation to 105C suits installations near heat sources such as ovens, and the Green RoHS 64-QFN package meets consumer-appliance environmental requirements in Europe and Asia while the exposed pad aids heat spreading on high-density UI boards.
推薦
Embedded Networking Nodes
In embedded networking nodes such as sensor gateways and RS-485 field devices, the ATMEGA165PV-8MNR provides the USART needed for protocol stacks and the SPI needed to attach Ethernet, CAN, or RF co-processors. The 8MHz 8-bit AVR core executes compact, interrupt-driven firmware with deterministic timing for frame handling, and the 1KB SRAM accommodates packet buffers for lightweight protocols at low data rates. The 105C industrial grade suits DIN-rail and outdoor enclosures, while the wide 1.8V to 5.5V input range simplifies integration into mixed 3.3V/5V backplanes without level shifting. The 64-QFN package offers enough general-purpose I/O for address selection, status LEDs, and watchdog signaling on node boards.
推薦
LED Lighting Controllers
The ATMEGA165PV-8MNR serves as the control core in LED lighting ballasts and dimmer modules. Its ADC measures current via shunt resistors and reads dimmer-position inputs, while timer/PWM firmware output drives MOSFET gates or constant-current driver ICs through the SPI port. The 16KB Flash is sufficient for DALI or DMX-512 style protocol firmware, and the 105C rating withstands luminaire enclosures where ambient temperatures routinely exceed 70C. The PV grade's 1.8V to 5.5V operation supports both 3.3V logic and legacy 5V designs, and the 64-QFN exposed pad gives a low-inductance ground that reduces switching-noise coupling into analog measurement circuits, improving dimming stability and flicker performance.
推薦
Automotive Body Electronics (Non-Safety)
For non-safety automotive body functions - seat-position memory, mirror control, interior lighting - the ATMEGA165PV-8MNR's 105C grade, 5V tolerance, and robust AVR interrupt structure address typical cabin-ECU requirements. The 512B EEPROM retains learned positions and user settings across battery disconnects, and the ADC handles LIN-relevant supply monitoring and NTC feedback. Note this exact orderable part is not an AEC-Q100-qualified automotive variant, so designers should validate qualification requirements or select Microchip's automotive-grade ATmega equivalents for safety-relevant or formally qualified programs. The 64-QFN MLF package survives vibration better than gull-wing packages due to reduced solder-joint stress from its compact 9x9 mm footprint.
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推薦產品摘要
工程參考資料，適用於 ATMEGA165PV-8MNR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATMEGA165PV-8MN | ATMEGA165PA-MN | ATMEGA169PA-MN | ATMEGA165P-16ANR |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16KB | 16KB | 16KB | 16KB | 16KB |
| SRAM | 1KB | 1KB | 1KB | 1KB | 1KB |
| LCD Segment Driver | No | No | No | Yes | No |
主要差異化特點
- 105C industrial temperature grade (對比ATMEGA164PA-AUR)
- Wide 1.8V to 5.5V supply range at 8MHz (對比ATMEGA165P-16ANR)
- Tape and Reel packing for automated assembly (對比ATMEGA165PV-8MN)
- No LCD driver complexity (對比ATMEGA169PA-MN)
設計說明
The 64-QFN (9x9 mm) MLF package has an exposed pad on the underside that must be soldered to a grounded thermal pad on the PCB - it is not optional. Define an array of thermal vias (typically 4x4 or 5x5) connecting the exposed pad to internal ground planes. QFN packages also require careful stencil design: use ~50-60% coverage on the center pad aperture to avoid solder voiding, and full apertures with pull-back on perimeter pins. Follow Microchip's MLF/QFN application guidelines for land-pattern geometry.
Decouple every VCC/AVCC pin pair with a 100nF ceramic capacitor placed within 3-5 mm of the pin, plus at least one 4.7uF-10uF bulk capacitor near the package. The 10-bit ADC requires AVCC filtered with an LC network (10uH inductor + 10uF) for full accuracy, and the internal reference benefits from a 100nF capacitor on AREF. Do not let AVCC float; connect it to VCC when ADC accuracy is not critical. Estimated supply current scales roughly linearly with clock: at 5V/8MHz expect active current in the low-mA range per the datasheet electrical characteristics.
Observe maximum clock versus supply voltage limits before raising frequency: this PV grade is rated 8MHz, and ATmega parts with different speed codes (e.g., 16MHz grades) cannot simply be substituted onto the same board without verifying crystal frequency and voltage derating tables. Also verify the ISP programming pin sharing: pins used for SPI programming (MOSI, MISO, SCK) must not be loaded heavily on the target board or ISP programming will fail. Finally, confirm the RESET pin pull-up is present if any external circuitry can pull it low during power-up.
合規資訊
Listed as Green (RoHS-compliant, lead-free MLF) per FindIC and distributor data. REACH, halogen-free, and conflict-minerals status should be confirmed with Microchip's formal compliance certificates.
