ATMEGA165PV-8ANR - AVR 8-Bit MCU 16KB 8MHz TQFP-64 | Microchip
MPN： ATMEGA165PV-8ANR ✓ 啟用中ATMEGA165PV-8ANR 概覽
A microcontroller unit (MCU) is a single-chip embedded computer that integrates a processor core, program memory, data memory, and peripherals such as timers, UARTs, and ADCs. The ATmega family belongs to the AVR architecture family, which sits within the broader hierarchy of microcontrollers -> embedded processors -> integrated circuits -> semiconductors. MCUs are the workhorses of embedded systems, executing control logic in everything from appliances to industrial sensors.
The ATMEGA165PV-8ANR implements the advanced AVR RISC architecture with 131 powerful instructions, most executing in a single clock cycle, and 8 general-purpose working registers for fully static operation up to 16 MIPS throughput. On-chip Flash supports In-System Programming (ISP) and true read-while-write operation, enabling firmware updates without removing the chip. The integrated 10-bit ADC, USART serial interface, SPI port, two-wire interface (TWI), and multiple timers with PWM outputs reduce external component count in mixed-signal designs.
The PV suffix denotes the 2.7V to 5.5V wide operating voltage range (3V supply per distributor data), making this device suitable for battery-powered and 5V industrial systems alike. The -40C to +105C temperature rating extends use into harsh environments such as automotive compartments and industrial cabinets, where standard 85C parts would be marginal. The A-grade package and Green/RoHS-type plating per distributor listings support lead-free assembly.
Typical applications include industrial sensor nodes and HMI controllers, motor control and power-supply supervision, building automation and metering, and consumer appliance control boards. The 64-pin TQFP footprint provides 54 general-purpose I/O lines, sufficient for keypad matrices, displays, and multi-peripheral buses without port expanders.
Design consideration: at 8 MHz rated speed, leave timing margin for the full 2.7V to 5.5V supply range, and verify Flash write endurance and Brown-out Reset settings at the low end of the voltage range before finalizing battery-powered designs.
This page synthesizes distributor pricing, drop-in family alternatives, comparison tables, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 ATMEGA165PV-8ANR — 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-8ANR （相同外形與佔位） — 差異在於 Package, Flash Memory, Operating Temperature, Instruction Set, RoHS Status.
ATMEGA165PA-AU
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA165A-AU
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA165P-16ANR
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA165PV-8AU
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA165V-8AU
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA165PV-8ANR 最大額定值與電氣特性
| Core Architecture | AVR 8-bit RISC |
| Core Size | 8-Bit |
| 最大時脈頻率 | 8 MHz |
| Program Memory Size | 16KB (8K x 16) Flash |
| Program Memory Type | In-System Programmable Flash |
| EEPROM Size | 512 B |
| SRAM Size | 1 KB |
| Supply Voltage Range | 2.7 V to 5.5 V |
| 工作溫度 | -40C to +105C |
| 封裝 | 64-TQFP (14 x 14 mm) |
| 安裝類型 | Surface Mount |
| Instruction Set | 131 Instructions, most single-cycle |
| Throughput | Up to 16 MIPS (fully static operation) |
| Series | AVR ATmega |
| Packaging | Tape and Reel |
| RoHS 狀態 | Green (RoHS-compliant per distributor listing) |
ATMEGA165PV-8ANR 64-tqfp (14 x 14 mm) 腳位配置指南
ATMEGA165PV-8ANR（64-tqfp (14 x 14 mm) 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-8ANR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATMEGA165PV-8ANR 適用於 6 應用s: Industrial Sensor Nodes and HMI Controllers, Battery-Powered Portable Instruments, Motor Control and Fan Drivers, Building Automation and Utility Metering, Consumer Appliance Control Boards, Security and Access Control Systems.
Industrial Sensor Nodes and HMI Controllers
The ATMEGA165PV-8ANR fits industrial sensing and human-machine interface nodes because its 54-line GPIO capacity across ports PA-PF drives keypad matrices, character LCDs, and multiple SPI/I2C sensors without port expanders. The -40C to +105C rating covers unconditioned control cabinets where 85C commercial parts would fail, and the 2.7V to 5.5V supply range tolerates noisy industrial rails. In a typical node, the 8 MHz AVR core polls a 10-bit ADC and transmits over USART or TWI to a fieldbus gateway; the 1KB SRAM handles ring buffers for packetized telemetry. The 512B EEPROM stores calibration constants that survive power cycles. Compared with a bare 8-bit timer IC plus external MCU, this single chip reduces BOM count and board area in the 14 x 14 mm TQFP-64 footprint.
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Battery-Powered Portable Instruments
The PV voltage grade of the ATMEGA165PV-8ANR, spanning 2.7V to 5.5V, allows direct operation from a 3V CR2032 coin cell or a single lithium-ion cell without a regulator, saving cost and quiescent budget in portable instruments. The AVR core's fully static operation means the clock can be throttled or stopped with zero risk of register loss, and sleep modes between measurements cut average current dramatically. A handheld meter can sample its 10-bit ADC at 1 Hz, format results, and return to sleep, stretching battery life to years at low duty cycles. The 16KB Flash accommodates a full measurement, logging, and UI firmware stack, while the 512B EEPROM retains user settings. For maximum sleep-current savings, engineers can migrate to the pin-compatible ATMEGA165PA-AU picoPower variant on the same PCB footprint.
推薦
Motor Control and Fan Drivers
The ATMEGA165PV-8ANR serves low-complexity motor control tasks using its hardware timers with PWM outputs to drive MOSFET half-bridges or fan drivers. Timer outputs generate 8-bit or 16-bit PWM at carrier frequencies from a few hundred hertz to above the audible band, and input-capture can measure tachometer feedback for closed-loop speed regulation. The 8 MHz clock suffices for commutation tables in BLDC fans and brushed-DC speed loops; the -40C to +105C rating matches motor-adjacent mounting inside appliance and HVAC housings. A typical design gates the PWM into a driver such as a gate IC or H-bridge, with current sense fed back to the ADC for stall detection. The 1KB SRAM holds PI-loop state and fault latching without external RAM, keeping the control loop deterministic.
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Building Automation and Utility Metering
Metering and building-automation endpoints benefit from the ATMEGA165PV-8ANR's combination of a 10-bit ADC for analog metering front-ends, EEPROM for tariff tables and accumulated counters, and TWI/SPI buses for RTCs and displays. The 105C temperature grade permits mounting inside breaker panels and sun-exposed junction boxes where ambient temperatures exceed 85C. Pulse inputs from energy meters can be captured by timer input-capture with timestamping, while the USART streams readings to a concentrator over RS-485 via an external transceiver. The 16KB Flash holds a metrology, protocol, and diagnostic stack comfortably, and In-System Programming enables field firmware updates for tariff changes without opening sealed housings. The 2.7V to 5.5V range supports both 3.3V electronics and legacy 5V field wiring levels.
推薦
Consumer Appliance Control Boards
Washer, cooktop, and small-appliance controllers are a classic fit for the ATMEGA165PV-8ANR: enough GPIO for touch keys, relays, and a segment display; timers for PWM heater and motor phase control; and the 105C rating to survive enclosure heat near motors and heating elements. The 8 MHz speed is adequate for user-interface scanning cycles and safety interlock logic executed in fixed time slices. In-System Programming lets OEMs flash final firmware at end-of-line test on the assembled board, and the 512B EEPROM records usage statistics and last-fault codes for service diagnostics. The wide 2.7V to 5.5V supply tolerance rides through sagging unregulated transformer supplies common in appliance power stages, and the TQFP-64 footprint integrates the entire controller into a compact single-IC layout.
推薦
Security and Access Control Systems
Door controllers, keypads, and small security panels leverage the ATMEGA165PV-8ANR's port density to scan matrix keypads, drive LCDs, and interface Wiegand or clock-data readers via edge-captured timer inputs. The AVR core executes authentication code from 16KB Flash fast enough for sub-100 ms badge-to-relay response, and the 512B EEPROM stores user PIN hashes and audit counters locally, allowing stand-alone operation when the network is down. The 105C grade suits outdoor reader housings in direct sun, and the -40C floor covers cold-storage facilities. Interrupt-driven edge detection on reader lines wakes the MCU from sleep, keeping standby power low for battery-backed installations. Firmware held in ISP Flash can be updated on-site via SPI for credential-format changes without desoldering the controller.
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推薦產品摘要
工程參考資料，適用於 ATMEGA165PV-8ANR — 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 | ATMEGA165PA-AU | ATMEGA165A-AU | ATMEGA165P-16ANR | ATMEGA165PV-8AU | ATMEGA165V-8AU |
|---|---|---|---|---|---|---|
| Package | 64-TQFP (14x14 mm) | 64-TQFP (14x14 mm) - same | 64-TQFP (14x14 mm) - same | 64-TQFP (14x14 mm) - same | 64-TQFP (14x14 mm) - same | 64-TQFP (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16KB (8K x 16) | 16KB | 16KB | 16KB | 16KB | 16KB |
| EEPROM / SRAM | 512B / 1KB | 512B / 1KB | 512B / 1KB | 512B / 1KB | 512B / 1KB | 512B / 1KB |
| Core Generation | ATmega165P (P generation) | ATmega165PA (picoPower) | ATmega165A (base) | ATmega165P (P generation) | ATmega165P (P generation) | ATmega165 (base, V grade) |
| Packaging | Tape & Reel | Tray | Tray | Tape & Reel | Tray | Tray |
主要差異化特點
- 105C industrial temperature grade (對比ATMEGA165PV-8AN)
- 8 MHz / 2.7V-5.5V combination (對比ATMEGA165P-16ANR)
- Same footprint family migration path (對比ATMEGA165PA-AU)
設計說明
The PV suffix gives a 2.7V to 5.5V supply range, but clock-speed capability scales with voltage on AVR parts - at the 8 MHz rating of the -8ANR, verify that Brown-out Reset is enabled (typically 2.7V-class BOD setting) so Flash writes and SRAM state are protected during battery sag below roughly 2.7V. Decouple each VCC and AVCC pin with 100nF ceramics placed within 5mm of the pins, and tie AVCC to VCC through an LC filter (10uH + 10uF) when using the 10-bit ADC in noisy 5V industrial environments to preserve effective ADC resolution.
The 64-TQFP (14 x 14 mm) exposes a 0.5mm pin pitch; specify a solder-mask-defined land pattern per the Microchip package drawing and use a no-clean flux profile suitable for 0.5mm pitch to prevent solder bridging on ports PB and PE where pin density concentrates routing. Route the crystal (XTAL1/XTAL2) with short traces and a guard ground, keeping load capacitors within 3mm of the pins. Because RESET is in-system-programmable via SPI, bring MOSI/MISO/SCK/RESET to a 6-pin ISP header even in production boards to enable end-of-line flashing and field updates.
Migrating from the -8ANR to the picoPower ATMEGA165PA-AU or the 16MHz ATMEGA165P-16ANR is electrically simple, but register-level differences exist between the P and PA generations: sleep-mode control bits and clock-prescaler registers differ, so recompile rather than relinking old object files, and re-verify the ADC reference selection. Also note the distinction between the 85C-grade ATMEGA165PV-8AN and this 105C -8ANR when approving alternates - substituting the 85C part in a hot enclosure is a reliability risk that datasheet electrical specs alone will not reveal.
合規資訊
FindIC lists the part as 'Green' packaging, indicating RoHS-type green/lead-free compliance. Full REACH, halogen, and conflict-minerals status not stated in verified data.