ATMEGA169P-16MUR - 8-bit AVR MCU, 16KB, 16MHz QFN-64 | Microchip
N.º da peça: ATMEGA169P-16MUR ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.85 | $1,85 |
| 10 | $1.66 | $16,60 |
| 100 | $1.49 | $149,00 |
| 500 | $1.38 | $690,00 |
| 1.000 | $1.28 | $1.280,00 |
ATMEGA169P-16MUR Visão geral
An AVR ATmega microcontroller belongs to the microcontroller unit (MCU) hierarchy within embedded processors: microcontroller -> 8-bit microcontroller -> AVR enhanced RISC family -> ATmega169P series. MCUs combine a processor core, program memory, data memory, and peripherals on a single die, allowing designers to build complete embedded control systems with minimal external components. The AVR enhanced RISC architecture executes 131 powerful instructions, most in a single clock cycle, achieving throughput approaching 1 MIPS per MHz.
Key features of the ATMEGA169P-16MUR include 16 MIPS throughput at 16 MHz, an 8-channel 10-bit A/D converter for analog signal acquisition, a segment LCD controller that directly drives glass displays without an external LCD driver IC, and full static operation down to DC. The device operates over a 2.7 V to 5.5 V supply range, supporting both 3.3 V and 5 V systems from the same PCB.
Technically, the self-programming FLASH enables in-system programming and bootloader firmware updates, while the JTAG interface supports boundary-scan testing and on-chip debugging, reducing development iterations. The 'P' suffix denotes an improved die revision over the original ATmega169, and Microchip application note AVR506 (doc8028) documents pin and functional compatibility when migrating.
Typical applications include battery-operated products with LCD displays such as meters, thermostats, and portable instrumentation, plus industrial control panels and consumer appliances requiring a 5 V-tolerant 8-bit MCU with an integrated display driver.
A key design consideration: the LCD controller consumes segment-drive current only when a display is fitted, so designs without LCDs should choose the LCD-less ATmega165P/328P family to save board area and cost.
This page synthesizes verified distributor pricing, pin-compatible family alternatives, and practical migration notes sourced from Microchip application note AVR506 that are not consolidated on the manufacturer datasheet alone.
Alternativas drop-in para ATMEGA169P-16MUR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATMEGA169P-16MUR (mesmo formato e footprint) — diferindo em Instruction Set, Packaging, Supply Voltage Range.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATMEGA169PA-MN
✅ Drop-In✓ Em estoque
$3.05 / unidade
Ver ficha técnica →ATMEGA165P-16MUR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ATMEGA169PV-10MUR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ATMEGA329P-16MUR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ATMEGA649P-16MUR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ATMEGA169P-16MUR Classificações máximas e características elétricas
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 16 MHz |
| Throughput | 16 MIPS at 16 MHz (1 MIPS per MHz) |
| Flash Memory | 16 KB (8K x 16) |
| SRAM | 1 KB |
| EEPROM | 512 B |
| Supply Voltage Range | 2.7 V to 5.5 V |
| ADC Channels | 8-channel |
| ADC Resolution | 10-bit |
| Peripherals | LCD driver, POR, WDT |
| Debug Interface | JTAG for on-chip-debug and boundary scan |
| Instruction Set | 131 powerful instructions, mostly single-cycle |
| Encapsulamento | 64-QFN (9x9 mm) |
| Tipo de montagem | Surface Mount |
| Packaging | Tape & Reel (R suffix) |
Guia de Configuração de Pinos do ATMEGA169P-16MUR 64-qfn (9x9 mm)
Configuração de pinos para ATMEGA169P-16MUR (pacote 64-qfn (9x9 mm)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para ATMEGA169P-16MUR.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ATMEGA169P-16MUR é adequado para 6 aplicaçãos: Battery-Powered Meters with LCD, Thermostats and HVAC Control Panels, Portable Instrumentation, Industrial Control Panels, Consumer Appliances with Display, Automotive Body and Comfort Modules (Legacy/Aftermarket).
Battery-Powered Meters with LCD
Utility meters, multimeters, and panel meters benefit directly from the ATMEGA169P-16MUR's integrated segment LCD driver and low-power CMOS AVR core. The on-chip LCD controller drives the glass directly, removing an external driver IC and its quiescent draw, while the 2.7 V to 5.5 V operating range accommodates 3 V lithium or alkaline stacks. The 8-channel 10-bit ADC samples load current and voltage channels for measurement math, and 16 KB self-programming FLASH supports field firmware updates for metrology calibration changes. Running the core below 16 MHz lowers active current per the 1 MIPS/MHz architecture, and sleep modes between ADC conversions extend battery life to multi-year service intervals.
Recomendado
Thermostats and HVAC Control Panels
Room thermostats and HVAC controllers pair a segmented display with temperature sensing and relay control - exactly the ATMEGA169P-16MUR's profile. The integrated LCD driver renders setpoint and status digits without a companion display IC, the 10-bit ADC reads NTC thermistor networks across 8 multiplexed sensor inputs, and 512 B EEPROM stores user settings and setpoint schedules through power cycles. The 16 KB FLASH accommodates PID control loops and communication firmware, while the 5.5 V upper supply limit allows direct operation from 5 V transformer-rectified auxiliaries. The JTAG interface enables production boundary-scan test of the panel PCB after assembly, improving manufacturing yield.
Recomendado
Portable Instrumentation
Handheld testers, environmental meters, and portable gauges exploit the ATMEGA169P-16MUR's combination of display drive, analog acquisition, and low standby power. The 16 MIPS throughput at 16 MHz executes DSP-style filtering on 10-bit ADC samples fast enough for responsive bar-graph displays, and the LCD controller multiplexes up to dozens of segments directly from MCU pins, shrinking the display PCB to a zebra-strip connection. Full static operation lets the clock be throttled to near-DC in idle modes, and power-down sleep retains SRAM at microamp-scale currents. 1 KB SRAM holds waveform buffers for capture-and-display measurement workflows common in field service tools.
Recomendado
Industrial Control Panels
Industrial panels use the ATMEGA169P-16MUR as a local HMI and sequencing controller: the LCD driver shows status and fault codes, the 8-channel ADC reads potentiometer setpoints and analog transducers, and general-purpose I/O drives relays and reads limit switches. The 5 V tolerant, 2.7-5.5 V supply integrates with legacy 5 V industrial logic rails without level shifting, and the self-programming FLASH enables maintenance teams to reflash control logic in the enclosure via a bootloader rather than swapping sockets. JTAG boundary scan supports ICT fixture testing of populated panels, while the industrial temperature-capable AVR family keeps control electronics qualified for factory-floor environments.
Recomendado
Consumer Appliances with Display
Microwave panels, coffee machines, and small appliances need an MCU that merges keypad scanning, display drive, and actuator control at consumer cost points - the ATMEGA169P-16MUR delivers all three on one die. The integrated LCD segment driver replaces a dedicated display controller, cutting BOM cost per unit across volume production, while 131 mostly single-cycle AVR instructions execute keypad debounce and timer logic with headroom at modest clock rates. 512 B EEPROM retains user preferences across outlet unplug events, and the 16 KB FLASH holds multi-mode control firmware with room for localization variants. The 64-QFN (9x9 mm) leadless package suits compact appliance PCBs with automated assembly.
Recomendado
Automotive Body and Comfort Modules (Legacy/Aftermarket)
Aftermarket and legacy automotive comfort modules - seat memory controllers, mirror-adjust units, and gauge clusters - historically built on the ATmega169P family for its LCD drive and rugged 5 V operation. The 8-channel 10-bit ADC digitizes position potentiometers and temperature sensors, while EEPROM stores seat or mirror calibration data through ignition-off periods. The JTAG interface supports end-of-line programming on the supplier's assembly fixture, and the self-programming FLASH permits dealer-level recalibration via a bootloader. New automotive designs should evaluate the ATMEGA169PA variant and Microchip's AEC-Q100-qualified AVR lines; this P-version primarily serves service, repair, and aftermarket reproduction of existing modules.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATMEGA169P-16MUR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATMEGA169PA-MN | ATMEGA165P-16MUR | ATMEGA169PV-10MUR | ATMEGA329P-16MUR |
|---|---|---|---|---|---|
| Package | 64-QFN (9x9 mm) | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 32 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 2 KB |
| Max Clock Speed | 16 MHz | 20 MHz (PA grade) | 16 MHz | 10 MHz | 16 MHz |
| Supply Voltage | 2.7 V to 5.5 V | 1.8 V to 5.5 V | 2.7 V to 5.5 V | 1.8 V to 5.5 V | 2.7 V to 5.5 V |
| LCD Driver | Yes (integrated) | Yes (integrated) | No | Yes (integrated) | Yes (integrated) |
| JTAG On-Chip Debug | Yes | Yes | Yes | Yes | Yes |
Principais diferenciais
- Integrated LCD segment driver (vs ATMEGA165P-16MUR)
- Newer low-power silicon available as drop-in (vs ATMEGA169PA-MN)
- Lower unit cost than doubled-memory sibling (vs ATMEGA329P-16MUR)
- Full-speed 16 MHz operation vs low-voltage variant (vs ATMEGA169PV-10MUR)
Notas de projeto
The ATMEGA169P-16MUR operates from 2.7 V to 5.5 V, so a single 3.3 V or 5 V rail suffices. When migrating from an original ATmega169, consult Microchip application note AVR506 (doc8028): the P-die revision is pin and functionality compatible but may show minor differences in Brown-out reset and power-management behavior that affect battery-powered designs. Decouple VCC and AVCC with 100 nF ceramics placed within a few millimeters of the pins, and tie the QFN exposed pad to a solid ground plane for both electrical return and thermal relief.
The 64-QFN (9x9 mm) leadless package requires an exact MLF-64 land pattern with via-fenced exposed pad - a TQFP-64 footprint is NOT interchangeable despite the same pin map. Route the LCD segment lines as a short, matched bundle to the zebra-strip or elastomer connector and guard them away from switching traces, since LCD drive lines are dynamically multiplexed and susceptible to coupling-induced ghost segments. Keep the 8 ADC channels away from crystal and LCD drive routing to preserve 10-bit accuracy at the 2.7 V low end.
Two pitfalls recur with this device. First, the ATmega169P is the older silicon: Microchip's datasheet explicitly lists the ATMEGA169PA as the newer device, so new BOMs should adopt the PA variant to avoid end-of-life churn - the PA is footprint-compatible. Second, if your product has no LCD, do not select this part; the LCD-less ATMEGA165P in the same 64-QFN package avoids unused LCD bias resistors and simplifies EMC. Also verify ISP programming fuse settings (SPIEN, JTAGEN) before removing the JTAG header from production boards, or in-system recovery becomes impossible.
Informações de conformidade
Compliance data not present in the provided verified web data; modern Microchip ATmega devices are typically RoHS-compliant, but this must be confirmed against the official Microchip product page before claiming compliance. Not AEC-Q100 - the ATmega169P is a general-purpose commercial/industrial MCU.