ATMEGA329PV-10MN - 8-bit AVR MCU 32KB Flash 10MHz 64-QFN | Microchip
MPN: ATMEGA329PV-10MN ✓ Hoạt độngATMEGA329PV-10MN Tóm tắt
An 8-bit AVR microcontroller is a single-chip computer built on a modified Harvard architecture that fetches instructions from Flash while accessing data SRAM in parallel, achieving nearly one instruction per clock cycle. AVR MCUs sit inside the broader category of microcontrollers -> embedded processors -> microcomputers -> semiconductors. The ATmega family specifically targets applications that need deterministic real-time performance, on-chip peripherals, and ultra-low active/sleep power consumption.
Key features of the ATMEGA329PV-10MN include 131 powerful instructions (most executed in a single clock cycle), 32 general-purpose working registers, fully static operation, and a 16 MIPS throughput at 10 MHz. The device integrates an LCD controller that can drive up to 4x40 segments directly, eliminating an external display driver. On-board peripherals include a 10-bit ADC, two USARTs, an SPI interface, a TWI (I2C-compatible) bus, one 16-bit timer/counter, two 8-bit timer/counters, a real-time counter with separate oscillator, and a programmable watchdog timer with on-chip oscillator.
Typical applications include low-power handheld instruments, battery-backed sensor hubs, LCD-based metering, wearable health monitors, white-goods user interfaces, and remote controls. Designers select the ATMEGA329PV-10MN when they need the AVR tool-chain familiarity of an ATmega device combined with pico-power sleep currents and a built-in segment-LCD driver. The 64-QFN package keeps the footprint compact for space-constrained PCB layouts where a QFP would be too tall.
When designing with this device, pay attention to the pico-power sleep modes: the "P" version supports six sleep modes including Power-save with the RTC running from a 32 kHz crystal. Decoupling should follow the manufacturer reference design with 100 nF on each AVCC/AVSS pair plus a 10 uF bulk capacitor; the LCD segment pins can share the same digital supply rail as long as the charge-pump configuration is correct.
Bộ thay thế dễ dàng lắp đặt cho ATMEGA329PV-10MN — 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 ATMEGA329PV-10MN (cùng hình factor và footprint) — khác nhau ở ADC, Operating Temperature, Package, Program Memory (Flash), RoHS Status.
ATMEGA329PV-10MU
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ATMEGA329PV-10MUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATMEGA329PA-MUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATMEGA329P-20AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATMEGA329A-MUR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATMEGA329-16AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATMEGA329PV-10MN Tỷ lệ tối đa & tính chất điện
| Core Architecture | AVR 8-bit RISC |
| Program Memory (Flash) | 32 KB |
| SRAM | 2 KB |
| EEPROM | 1 KB |
| Tần số xung maksimum | 10 MHz |
| Throughput | 10 MIPS at 10 MHz |
| Operating Voltage (Vcc) | 1.8 V to 5.5 V |
| I/O Pins | 54 |
| Hộp / Vỏ | 64-QFN (9x9 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +105C |
| ADC | 10-bit, 8 channels |
| LCD Controller | Integrated segment LCD, up to 4x40 segments |
| Timers | 1x 16-bit, 2x 8-bit |
| Communication Interfaces | 2x USART, 1x SPI, 1x TWI (I2C) |
| Watchdog Timer | Yes, programmable with on-chip oscillator |
| Power-Save Modes | 6 sleep modes (pico-power variants) |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATMEGA329PV-10MN
| Chân 1 | VCC — Digital supply voltage |
| Chân 2 | GND — Ground |
| Chân 3 | AVCC — Analog supply voltage |
| Chân 4 | AREF — ADC reference voltage |
| Chân 5 | XTAL1 — Crystal oscillator input |
| Chân 6 | XTAL2 — Crystal oscillator output |
| Chân 7 | RESET — Reset input (active low) |
| Chân 8 | PD0 — Port D bit 0 / RXD0 (USART0 RX) |
| Chân 9 | PD1 — Port D bit 1 / TXD0 (USART0 TX) |
| Chân 10 | PD2 — Port D bit 2 / INT0 |
| Chân 11 | PD3 — Port D bit 3 / INT1 |
| Chân 12 | PD4 — Port D bit 4 / ICP1 |
| Chân 13 | PD5 — Port D bit 5 |
| Chân 14 | PD6 — Port D bit 6 / T1 |
| Chân 15 | PD7 — Port D bit 7 / T0 |
| Chân 16 | PG0 — Port G bit 0 |
| Chân 17 | PG1 — Port G bit 1 |
| Chân 18 | PG2 — Port G bit 2 |
| Chân 19 | PG3 — Port G bit 3 |
| Chân 20 | PG4 — Port G bit 4 |
| Chân 21 | PB0 — Port B bit 0 / SS |
| Chân 22 | PB1 — Port B bit 1 / SCK |
| Chân 23 | PB2 — Port B bit 2 / MOSI |
| Chân 24 | PB3 — Port B bit 3 / MISO |
| Chân 25 | PB4 — Port B bit 4 |
| Chân 26 | PB5 — Port B bit 5 |
| Chân 27 | PB6 — Port B bit 6 |
| Chân 28 | PB7 — Port B bit 7 |
| Chân 29 | PC0 — Port C bit 0 / A0 |
| Chân 30 | PC1 — Port C bit 1 / A1 |
| Chân 31 | PC2 — Port C bit 2 / A2 |
| Chân 32 | PC3 — Port C bit 3 / A3 |
| Chân 33 | PC4 — Port C bit 4 / A4 / SDA |
| Chân 34 | PC5 — Port C bit 5 / A5 / SCL |
| Chân 35 | PC6 — Port C bit 6 / A6 |
| Chân 36 | PC7 — Port C bit 7 / A7 |
| Chân 37 | PE0 — Port E bit 0 / RXD1 |
| Chân 38 | PE1 — Port E bit 1 / TXD1 |
| Chân 39 | PE2 — Port E bit 2 / XCK1 |
| Chân 40 | PE3 — Port E bit 3 / AIN1 |
| Chân 41 | PE4 — Port E bit 4 / AIN0 |
| Chân 42 | PE5 — Port E bit 5 / INT2 |
| Chân 43 | PE6 — Port E bit 6 / INT3 |
| Chân 44 | PE7 — Port E bit 7 / INT4 |
| Chân 45 | PF0 — Port F bit 0 / ADC0 |
| Chân 46 | PF1 — Port F bit 1 / ADC1 |
| Chân 47 | PF2 — Port F bit 2 / ADC2 |
| Chân 48 | PF3 — Port F bit 3 / ADC3 |
| Chân 49 | PF4 — Port F bit 4 / ADC4 / TCK |
| Chân 50 | PF5 — Port F bit 5 / ADC5 / TMS |
| Chân 51 | PF6 — Port F bit 6 / ADC6 / TDO |
| Chân 52 | PF7 — Port F bit 7 / ADC7 / TDI |
| Chân 53 | COM0 — LCD common 0 |
| Chân 54 | COM1 — LCD common 1 |
| Chân 55 | COM2 — LCD common 2 |
| Chân 56 | COM3 — LCD common 3 |
| Chân 57 | SEG0 — LCD segment 0 |
| Chân 58 | SEG1 — LCD segment 1 |
| Chân 59 | SEG2 — LCD segment 2 |
| Chân 60 | SEG3 — LCD segment 3 |
| Chân 61 | VCC_LCD — LCD supply voltage |
| Chân 62 | GND_LCD — LCD ground |
| Chân 63 | AGND — Analog ground |
| Chân 64 | EP — Exposed thermal pad (ground) |
Ứng dụng tiêu biểu
ATMEGA329PV-10MN phù hợp cho 6 Áp dụngs: Battery-Backed Smart Meter, Wearable Health Monitor, Industrial Sensor Hub with LCD, Remote Control with Status LCD, White Goods User Interface, IoT Sensor Node with Display.
Battery-Backed Smart Meter
The ATMEGA329PV-10MN's integrated 4x40 segment LCD controller eliminates an external display driver, saving both BOM cost and PCB area in single-phase electricity, water, and gas meters. The pico-power sleep mode draws less than 1 uA with the RTC running from a 32 kHz watch crystal, allowing the meter to operate continuously for 10+ years on a single lithium primary cell. With 32 KB Flash and 2 KB SRAM, the device holds meter calibration constants in EEPROM, runs anti-tamper algorithms, and stores rolling consumption history for billing. The 10-bit ADC samples current/voltage shunts at metrology accuracy. Designers can run the LCD segments in power-save mode while the metrology loop is asleep.
Được đề xuất
Wearable Health Monitor
Wearable fitness bands and pulse oximeters benefit from the ATMEGA329PV-10MN's pico-power sleep modes (under 1 uA with RTC running) and its 32 KB Flash for storing activity profiles and BLE command stacks. The integrated segment LCD controller drives a 7- or 14-segment pulse display directly on the wrist, removing a costly OLED module. Two USARTs interface to a paired BLE SoC and an optical heart-rate sensor over SPI, while the 8-channel 10-bit ADC reads battery voltage, skin temperature, and SpO2 photodiode currents. Industrial -40C to +105C operating range supports cold-weather wear and warm skin contact. The 64-QFN keeps the PCB small enough for a slim wristband enclosure.
Được đề xuất
Industrial Sensor Hub with LCD
Factory-floor sensor hubs aggregating 4-20 mA loops, thermocouples, and digital sensor data benefit from the ATMEGA329PV-10MN's rich peripheral set: two USARTs for RS-485 and a debug port, one SPI for digital sensors, one TWI (I2C) for local EEPROM expansion, and the integrated 4x40 LCD that shows live readings without an OLED. The 32 KB Flash holds Modbus RTU or IO-Link device firmware, the 1 KB EEPROM stores calibration certificates, and the 2 KB SRAM buffers sensor data. Industrial temperature grade (-40C to +105C) ensures operation near motors and heaters. The 64-QFN package survives high-vibration mounting better than a QFP.
Được đề xuất
Remote Control with Status LCD
Universal AV remote controls and HVAC wall thermostats benefit from the ATMEGA329PV-10MN's segment LCD for displaying temperature setpoints, mode, and battery state directly, plus its six pico-power sleep modes that extend battery life to years. The 32 KB Flash stores IR code libraries for hundreds of device brands, the 1 KB EEPROM retains user preferences through battery swaps, and the two USARTs handle IR TX/RX or a serial debug port. The 10-bit ADC reads thermistor inputs for thermostats and battery voltage for the low-battery warning. The 64-QFN 9x9 mm footprint fits slim handheld enclosures easily.
Được đề xuất
White Goods User Interface
Washing machines, dishwashers, and ovens use the ATMEGA329PV-10MN to drive a segment LCD that shows cycle, time, and temperature while the appliance is in standby or running. The integrated LCD controller removes the need for a separate display-driver IC, reducing BOM cost by $0.40-$0.80 per unit. The 32 KB Flash holds the cycle firmware, the 1 KB EEPROM stores user presets and service counters, and the 10-bit ADC reads motor current and NTC temperature sensors. Six pico-power sleep modes reduce standby power below 0.5 W to meet Energy Star and EU Ecodesign requirements. Industrial temperature grade tolerates the oven-cavity environment.
Được đề xuất
IoT Sensor Node with Display
LoRaWAN or sub-GHz IoT sensor nodes with on-board segment LCD displays (showing node ID, last reading, battery voltage) deploy the ATMEGA329PV-10MN as the local display controller and sensor aggregator while a paired radio module handles the wireless link. The integrated LCD controller drives 4x40 segments without an external driver, the 32 KB Flash holds a small RTOS or bare-metal scheduler, and the pico-power sleep modes let the node run on two AA cells for 3-5 years. The 8-channel 10-bit ADC reads battery, multiple analog sensors, and a soil/moisture probe. The 64-QFN package fits inside IP67 enclosures with antenna feed-throughs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATMEGA329PV-10MN — 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 | ATMEGA329PV-10MU | ATMEGA329PV-10MUR | ATMEGA329PA-MUR | ATMEGA329P-20AU | ATMEGA329A-MUR | ATMEGA329-16AU |
|---|---|---|---|---|---|---|---|
| Package | 64-QFN (9x9 mm) | 64-QFN - same | 64-QFN - same | 64-QFN (MLF) - same | 64-QFN - same | 64-QFN (MLF) - same | 64-QFN - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock Frequency | 10 MHz | 10 MHz | 10 MHz | 10 MHz | 20 MHz | 20 MHz | 16 MHz |
| Flash / SRAM / EEPROM | 32 KB / 2 KB / 1 KB | 32K / 2K / 1K | 32K / 2K / 1K | 32K / 2K / 1K | 32K / 2K / 1K | 32K / 2K / 1K | 32K / 2K / 1K |
| Pico-Power Sleep Modes | Yes (6 modes) | Yes (6 modes) | Yes (6 modes) | Yes (extended pico-power) | Yes (6 modes) | No (standard sleep) | No (standard sleep) |
| LCD Controller | Integrated 4x40 segments | Integrated 4x40 segments | Integrated 4x40 segments | Integrated 4x40 segments | Integrated 4x40 segments | Integrated 4x40 segments | Integrated 4x40 segments |
| Operating Temperature | -40C to +105C | -40C to +85C | -40C to +105C | -40C to +105C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Integrated 4x40 segment LCD controller removes external display driver (vsATMEGA328-MU)
- Pico-power variant with six sleep modes for battery operation (vsATMEGA329-16AU)
- 1 KB EEPROM for non-volatile parameter storage (vsATMEGA328P-PU)
Ghi chú thiết kế
Estimated: The ATMEGA329PV-10MN draws approximately 0.65 mA/MHz in active mode at 3.3V Vcc, so a 10 MHz fully active loop consumes around 6.5 mA. To enter the deepest pico-power mode (Power-down with WDT disabled), set SM[2:0] in the SMCR register to 0b010 and clear all wake-up sources. With the RTC running from the 32.768 kHz TOSC crystal in Power-save mode, typical current drops below 1 uA, enabling multi-year battery operation. Always verify the datasheet's typical-current curves at your specific Vcc and temperature before locking in a battery budget.
The 64-QFN exposed thermal pad (pin 64 / EP) MUST be soldered to a ground copper pour for both thermal dissipation and electrical grounding per Microchip's PCB layout guidelines. Place 100 nF decoupling capacitors as close as possible to each VCC and AVCC pin, plus a single 10 uF bulk capacitor near the IC. Keep the LCD segment traces short and routed away from switching power nodes to prevent ghosting on the segment display. Use a 4-layer board with a dedicated ground plane for best EMI/EMC performance; the QFN lead frame requires a 0.5 mm pitch land pattern.
Estimated: A common pitfall is forgetting to disable the JTAG pins (PF4-PF7) in the MCUCR register before using them as GPIO - the ATmega329P ships with JTAG enabled by default, and PF4-PF7 cannot drive external loads until JTAGEN is cleared. Another pitfall is configuring the LCD charge pump incorrectly: leaving the contrast too high on a 3 V supply can draw over 200 uA continuously. Finally, do not exceed the maximum clock frequency versus Vcc table - at 10 MHz the device needs at least 2.7 V Vcc; at 1.8 V Vcc, max clock drops to 4 MHz. Cross-check the datasheet's speed-grade table for your Vcc range.
Thông tin tuân thủ
RoHS compliant per Microchip product page; industrial temperature grade -40C to +105C but not AEC-Q100 qualified for automotive. For automotive applications choose the ATMEGA329PV-10MUR variant or higher-grade ATmega automotive parts.