ATMEGA165P-16MNR - AVR 8-Bit MCU 16KB Flash 16MHz | Microchip
MPN: ATMEGA165P-16MNR ✓ Hoạt độngATMEGA165P-16MNR Tóm tắt
An AVR ATmega microcontroller is an 8-bit Harvard-architecture MCU that executes most of its 131 powerful instructions in a single clock cycle. Within the product hierarchy, the ATmega165P sits in the megaAVR family of general-purpose microcontrollers, below flash-rich parts such as the ATmega328P and above small-scale ATtiny devices, and serves as the programmable brain of embedded systems.
Key features include the advanced RISC architecture with 32 general purpose working registers, fully static operation to 16 MIPS throughput, 16 KB of self-programmable Flash with Read-While-Write capability, 53 general purpose I/O lines, and a JTAG interface for boundary-scan, on-chip debugging, and programming. The picoPower-enhanced P-grade die also improves reliability relative to the original ATmega165.
Architecturally, the three flexible Timer/Counters, the 10-bit ADC, USART, SPI, and Two-Wire Interface (TWI) peripherals make this part a compact single-chip solution for control and communication tasks. The JTAG port allows In-System Programming (ICSP) and on-chip debug using tools such as the MPLAB SNAP debugger.
Typical applications include industrial control panels, sensor nodes and IoT endpoints, consumer appliance controllers, and battery-powered instrumentation where low-power AVR operation is valuable.
A key design consideration is clock selection: the MNR is a blank, unprogrammed die relying on an external clock source or internal RC oscillator, so fuse configuration must match the crystal circuit to avoid bricking the device during development.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho ATMEGA165P-16MNR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATMEGA165P-16MNR (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Core Architecture, ADC, Flash Memory.
ATMEGA165P-16MN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATMEGA165PV-8MNR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATMEGA165P-16MUR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ATMEGA164PA-MNR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATMEGA169P-15MT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATMEGA165P-16MNR Tỷ lệ tối đa & tính chất điện
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 16 MHz |
| Flash Memory | 16 KB (8K x 16) |
| EEPROM | 512 B |
| SRAM | 1 KB |
| General Purpose I/O | 53 |
| Working Registers | 32 |
| Instructions | 131 (most single-cycle) |
| Throughput | Up to 16 MIPS at 16 MHz |
| JTAG Interface | Yes (boundary-scan, on-chip debug, programming) |
| Điện áp cung cấp | 3.3 V / 5 V (per FindIC listing) |
| Nhiệt độ hoạt động | up to 105C (per Mouser listing) |
| Hộp | 64-QFN (MLF, 9x9 mm) exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Packaging | Tape & Reel (R suffix) |
| Timers | Three flexible Timer/Counters (per datasheet summary) |
Hướng dẫn cấu hình chân ATMEGA165P-16MNR 64-qfn (mlf, 9x9 mm) exposed pad
Cấu hình chân cho ATMEGA165P-16MNR (64-qfn (mlf, 9x9 mm) exposed pad gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho ATMEGA165P-16MNR.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATMEGA165P-16MNR phù hợp cho 6 Áp dụngs: Industrial Control Panels, Sensor Nodes and IoT Endpoints, Consumer Appliance Controllers, Battery-Powered Instrumentation, Embedded Network Nodes, Motor Control and Actuator Drivers.
Industrial Control Panels
The ATMEGA165P-16MNR fits industrial control panel controllers because its 53 GPIO lines provide enough parallel I/O for relays, indicator LEDs, and keypad scanning without port expanders, while the 16 MHz AVR core executes control loops with deterministic single-cycle instruction timing. The JTAG boundary-scan capability supports production board test on dense panels, and on-chip debug shortens firmware bring-up. Its 105C rating suits cabinet-mounted electronics, and the 16 KB Flash with Read-While-Write supports field firmware updates over RS-485 or TWI links in installed equipment.
Được đề xuất
Sensor Nodes and IoT Endpoints
For battery-powered sensor nodes, the picoPower-class ATMEGA165P-16MNR combines the 16 KB self-programmable Flash needed for OTA firmware storage with 512 B EEPROM for sensor calibration constants that survive power loss. The AVR architecture offers fast wake-up and fully static operation, allowing aggressive clock gating between sampling intervals. The TWI and SPI interfaces connect directly to MEMS sensors and RF modules, and the 64-QFN 9x9 mm footprint keeps node PCB area compact for enclosure-constrained designs.
Được đề xuất
Consumer Appliance Controllers
Appliance control boards benefit from the ATMEGA165P-16MNR's blend of 16 KB Flash for menu/UX logic, 53 GPIO for touch keys, displays, and load drivers, and three flexible Timer/Counters for PWM motor and heater control. The 10-bit on-chip ADC reads NTC thermistors and user potentiometers directly. The JTAG on-chip debug interface accelerates certification-cycle firmware revisions, while the 105C M-grade operating rating covers near-heating-element board locations. Reel packaging (R suffix) suits high-volume SMT appliance production.
Được đề xuất
Battery-Powered Instrumentation
Portable instrumentation such as handheld meters and data loggers uses the ATMEGA165P-16MNR for its fully static core, which tolerates clock throttling from 16 MHz down to DC for aggressive power scaling, and the picoPower P-die improvements over the original ATmega165. The 1 KB SRAM buffers measurement samples between EEPROM write cycles, and the on-chip ADC with internal reference digitizes sensor channels without external conversion ICs. The exposed-pad QFN package improves ground integrity for low-noise analog front ends.
Được đề xuất
Embedded Network Nodes
In wired embedded networks, the ATMEGA165P-16MNR's USART provides the physical link for Modbus RTU and CAN-bridge firmware, while TWI manages I/O expanders and RTCs on the same two-wire bus. The 16 MIPS throughput handles protocol stacking with margin at modest clock rates, preserving timing headroom for application tasks. The JTAG boundary-scan chain supports board-level interconnect verification of dense communication backplanes, and the 16 KB Flash accommodates protocol stacks plus web-bootloader-style update code with Read-While-Write execution.
Được đề xuất
Motor Control and Actuator Drivers
The ATMEGA165P-16MNR drives DC and stepper motors via its three Timer/Counters, generating complementary PWM outputs for H-bridge interfaces with hardware-timed precision. Its 16 MHz single-cycle ALU closes current-loop control at tens of kilohertz with deterministic latency, an advantage over slower 8-bit cores in position-control applications. The 10-bit ADC samples back-EMF and bus-current shunts, and the 64-QFN exposed pad provides a low-inductance ground reference that limits switching-noise coupling into the analog measurement path.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATMEGA165P-16MNR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ATMEGA165P-16MN | ATMEGA165PV-8MNR | ATMEGA169P-15MT |
|---|---|---|---|---|
| Package | 64-QFN (MLF) 9x9 mm exposed pad | 64-QFN (MLF) 9x9 mm - same | 64-QFN (MLF) 9x9 mm - same | 64-QFN (MLF) 9x9 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB |
| Max Clock Frequency | 16 MHz | 16 MHz | 8 MHz | 15 MHz |
| LCD Controller | No | No | No | Yes (multiplexes some GPIO) |
| Packaging Format | Tape & Reel (R suffix) | Tray / cut tape (no R suffix) | Tape & Reel | Tape & Reel |
Bảo phân biệt quan trọng
- Full 16 MHz operation vs V-grade sibling (vsATMEGA165PV-8MNR)
- Clean 53-GPIO map without LCD multiplexing (vsATMEGA169P-15MT)
- JTAG on-chip debug and boundary-scan (vsATMEGA164PA-MNR)
- Reel packaging for high-volume SMT (vsATMEGA165P-16MN)
Ghi chú thiết kế
The 64-QFN (MLF) 9x9 mm package requires the exposed center pad to be soldered to a grounded copper thermal array for both mechanical reliability and ground integrity. Use a 4x4 via array (0.3 mm vias) under the exposed pad connecting to the internal ground plane. For assembly, specify at least 2 thou stencil reduction on the center pad opening to prevent solder wicking that lifts outer QFN leads. MLF parts also need generous no-clean flux wash considerations since cleaning under the package is impossible.
Decouple VCC with a 100 nF ceramic capacitor placed within 3 mm of each supply pin pair, plus a single 4.7 uF bulk capacitor on the board. The FindIC listing shows 3.3V/5V operation; confirm the frequency-versus-voltage derating curve in the full Microchip datasheet before committing to 16 MHz at reduced supply, since AVR maximum clock derates with VCC. For battery designs, leverage the fully static core: halting the clock between measurements drops power dramatically without losing register state.
The MNR is shipped blank and unprogrammed; before first flashing via ICSP or JTAG, ensure the SPIEN fuse remains enabled and avoid setting clock fuses to an external-crystal option until the crystal circuit is verified, or the device becomes unreachable (classic AVR lockout). Keep RESET routing short and add a 10 k-ohm pull-up. If migrating from the original ATmega165, consult Microchip application note AVR513 (doc8064), which documents minor modifications required when moving to the P-grade die.
When running at 16 MHz, route the crystal within 10 mm of the oscillator pins with ground guard traces, and keep JTAG TCK lines away from switching PWM outputs to avoid false debug-clock edges during boundary-scan test. Use series termination (22-33 ohm) on fast USART or SPI lines leaving the board. The exposed ground pad provides a solid return path, so avoid slicing ground planes under high-fanout GPIO banks used for relay or LED driving.
Thông tin tuân thủ
Compliance data was not present in the retrieved distributor data for this exact part number. Modern active Microchip AVR parts are typically RoHS-compliant and lead-free; verify via the Microchip product page environmental documents or distributor certificate of conformance before use.
