ATMEGA169PV-8AUR - 8-bit AVR MCU, LCD, 16KB Flash | Microchip
MPN: ATMEGA169PV-8AUR ✓ نشطATMEGA169PV-8AUR نظرة عامة
An 8-bit AVR microcontroller is a reduced-instruction-set (RISC) processor in the broader microcontroller (MCU) hierarchy, integrating flash program memory, SRAM, EEPROM data memory, peripherals, and a CPU core on a single chip. The AVR family is famous for executing most instructions in a single clock cycle, delivering approximately 1 MIPS per MHz of clock speed, which lets designers trade clock rate against power consumption.
Key features of the ATMEGA169PV-8AUR include 131 powerful instructions with mostly single-cycle execution, a fully static core rated to 16 MIPS throughput at 16MHz (8 MIPS at the 8MHz speed grade of this part), an integrated segment LCD driver for driving glass displays directly, and a JTAG interface for on-chip debugging and boundary-scan. The 8-channel 10-bit ADC supports analog sensing such as battery voltage, temperature, and user interfaces.
The picoPower (PV) suffix denotes the low-power AVR variant optimized for battery-operated products, with multiple sleep modes and an internal RC oscillator that removes the need for an external crystal in timing-tolerant designs. Supply operation spans 1.8V to 5.5V, allowing single-cell or coin-cell systems as well as 5V industrial rails.
Typical applications include battery-powered instruments with LCD displays, utility metering, handheld remote controls, and industrial panels that combine a segmented LCD, analog measurement, and modest control logic in one MCU.
A key design consideration is the 8MHz speed grade: if your firmware needs more throughput, pin-compatible 16MHz family members exist within the same TQFP-64 footprint.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
بدائل مباشرة لـ ATMEGA169PV-8AUR — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ATMEGA169PV-8AUR (نفس عامل الشكل والبصمة) — يختلف في Package, Flash Program Memory, Instruction Set, LCD Controller, ADC.
ATMEGA169PA-AUR
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
ATMEGA169P-15AT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ATMEGA169P-16AUR
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ATMEGA329P-AU
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
ATMEGA649-16AUR
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
ATMEGA169PV-8AUR الحدود القصوى والخصائص الكهربائية
| Core Processor | AVR |
| Core Size | 8-Bit |
| Series | AVR(R) ATmega, picoPower |
| أقصى تردد للساعة | 8 MHz |
| Program Memory Size | 16 KB (8K x 16) FLASH |
| EEPROM Size | 512 x 8 B |
| RAM Size | 1K x 8 B |
| Supply Voltage (Vcc/Vdd) | 1.8 V to 5.5 V |
| Data Converters | A/D 8x10b |
| LCD Controller | Yes, on-chip segment LCD driver |
| Oscillator Type | Internal |
| Connectivity | JTAG interface for on-chip debug |
| درجة حرارة التشغيل | -40C to +85C |
| العلبة / الحالة | 64-TQFP (14x14 mm) |
| نوع التركيب | Surface Mount |
| Throughput | 16 MIPS at 16 MHz (approx. 1 MIPS/MHz) |
| Instructions | 131 instructions, most single-cycle |
دليل تكوين أطراف ATMEGA169PV-8AUR 64-tqfp (14x14 mm)
تكوين الأطراف لـ ATMEGA169PV-8AUR (حزمة 64-tqfp (14x14 mm)). تتضمن هذه الدائرة المتكاملة الرقمية GPIO وواجهات الاتصال (UART وSPI وI2C) وأطراف الطاقة. راجع ورقة بيانات الشركة المصنعة لوظائف الأطراف البديلة وخيارات التكوين. ضرورية لتصميم الأنظمة المدمجة وتخطيط PCB.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ ATMEGA169PV-8AUR.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
ATMEGA169PV-8AUR مناسب لـ 6 التطبيقs: Battery-Powered Metering Instruments, Handheld Remote Controls and Key Fobs, Industrial Control Panels with LCD, Thermostats and HVAC Controls, POS Terminals and Card Readers, Smart Home Sensor Nodes.
Battery-Powered Metering Instruments
The ATMEGA169PV-8AUR fits utility and panel metering because its picoPower design, 1.8V to 5.5V supply range, and multiple sleep modes extend battery life, while the integrated segment LCD driver eliminates a separate display controller IC. In a typical topology the 8-channel 10-bit ADC samples shunt or divider voltages for energy or level measurement, and the LCD shows readings directly. At 8MHz the AVR core delivers roughly 8 MIPS, ample for metering firmware, and the 16KB FLASH with 512B EEPROM stores calibration constants through power cycles.
موصى به
Handheld Remote Controls and Key Fobs
For handheld controllers, the ATMEGA169PV-8AUR combines key-scan GPIO, the on-chip LCD for status icons, and an internal oscillator that removes the crystal and its cost. Running from two alkaline cells (about 3V), the picoPower part spends most of its life in sleep mode and wakes on keypad interrupts, a pattern documented in the ATmega169P datasheet power-management chapter. The 54 general-purpose I/O lines cover dense key matrices, and the 1KB SRAM supports protocol stacks for IR or RF link chips on a SPI/UART connection.
موصى به
Industrial Control Panels with LCD
Industrial panels benefit from the ATMEGA169PV-8AUR's 5V-tolerant, 5.5V maximum supply, its industrial temperature rating of -40C to +85C, and the JTAG interface for on-chip debugging during commissioning. The segment LCD shows setpoints and alarms without a graphics stack, keeping firmware small inside 16KB FLASH. Port pins drive relays or optocouplers while the 10-bit ADC reads potentiometers and current sensors. Designers typically use the internal RC oscillator plus a watchdog, and reserve the four JTAG-multiplexed pins for a debug header accessible through the panel service opening.
موصى به
Thermostats and HVAC Controls
In thermostat and HVAC controller designs, the ATMEGA169PV-8AUR reads NTC temperature sensors on its 8-channel 10-bit ADC, drives a segmented LCD showing setpoint and mode, and switches relays from port pins, all in one 64-TQFP device operating from a 24V-derived 5V rail. The picoPower sleep modes keep standby consumption low between temperature polls, and the 512B EEPROM retains user settings through outages. The 8MHz clock provides about 8 MIPS, sufficient for PID loops, and JTAG debugging simplifies field-firmware validation on the production board.
موصى به
POS Terminals and Card Readers
Point-of-sale peripherals use the ATMEGA169PV-8AUR for its combination of an LCD driver for transaction displays, sufficient GPIO for keypad matrices, and USART connectivity to a main controller or secure element. The AVR core executes most of its 131 instructions in a single cycle, giving predictable timing for card-slot interrupts and key debouncing. Operating at 5V simplifies level compatibility with legacy terminal electronics, while the 1KB SRAM buffers transaction strings. The picoPower variant supports sleep between transactions, reducing idle draw in countertop hardware.
موصى به
Smart Home Sensor Nodes
Battery-operated smart home nodes use the ATMEGA169PV-8AUR's internal oscillator and sleep modes to achieve multi-year coin-cell life while a small LCD reports status locally. The 8-channel 10-bit ADC digitizes temperature, humidity, or light sensors directly, and port-change interrupts wake the core from power-down when a door contact or PIR fires. With 1.8V operation the node can run to battery end-of-life, and firmware fits comfortably in 16KB FLASH. Wireless links are added via SPI-connected RF transceivers, with the 1KB SRAM handling modest mesh-protocol buffers.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ATMEGA169PV-8AUR — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ATMEGA169PA-AUR | ATMEGA169P-15AT | ATMEGA329P-AU | ATMEGA649-16AUR |
|---|---|---|---|---|---|
| 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 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock Frequency | 8 MHz | 20 MHz | 15 MHz | 20 MHz | 16 MHz |
| Program Memory (FLASH) | 16 KB | 16 KB | 16 KB | 32 KB | 64 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 2 KB | 4 KB |
| EEPROM | 512 B | 512 B | 512 B | 1 KB | 2 KB |
| Supply Voltage | 1.8 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 Controller | Yes | Yes | Yes | Yes | Yes |
أبرز الفروقات
- Integrated segment LCD driver (مقابلATMEGA168PB-AUR)
- Ultra-wide 1.8V to 5.5V supply range (مقابلATMEGA169P-15AT)
- JTAG on-chip debugging (مقابلATMEGA168PB-AUR)
ملاحظات التصميم
Respect the AVR speed-versus-voltage derating: although the datasheet family curve allows full speed at 5V, low-voltage operation near 1.8V restricts the safe maximum clock. If your board runs from a single Li cell or two NiMH cells, either lower the system clock in firmware as the battery discharges or verify the ATmega169P datasheet speed-grade curves for your worst-case supply. Ignoring this derating causes intermittent failures that appear only at low battery.
The four JTAG pins (TCK, TMS, TDO, TDI) are multiplexed with ADC port pins. Place a 2x5 JTAG header footprint on the PCB even if production boards do not populate it, and avoid dedicating those ADC channels to precision analog signals that a debug probe could disturb during development. Keep decoupling capacitors (100nF per supply pin) within 2mm of the VCC/GND pairs of the 64-TQFP, and connect AVCC to a filtered supply for ADC accuracy.
Estimated: when running from a 5V rail with an upstream switching regulator, add an RC or ferrite filter before AVCC (for example 10 ohm plus 1uF) to keep switching ripple out of the 10-bit ADC, since AVCC is the ADC reference source in default configuration. For battery designs, exploit the picoPower sleep modes and disable the digital input buffers on unused analog pins via the DIDR register to cut leakage, a technique described in the ATmega169P datasheet digital-input-disable section.
معلومات الامتثال
Verified web data did not include explicit RoHS/REACH statements. Microchip 'AU'-suffix AVR parts are conventionally lead-free green packages, but confirm on the official Microchip product page before BOM release.