ATMEGA168V-10MQR - 8-Bit AVR MCU 16KB Flash 10MHz VQFN-32 | Microchip
MPN: ATMEGA168V-10MQR ✗ پایان تولیدATMEGA168V-10MQR نمای کلی
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program and data memory, timers, and peripheral interfaces on one die. The ATmega family sits within the broader hierarchy of AVR RISC microcontrollers under the power-management-and-embedded-processing category, and remains a reference platform for cost-sensitive embedded control designs.
Key features include the Advanced RISC architecture with 131 powerful instructions, most executing in a single clock cycle, 32 x 8 general-purpose working registers, an 8-channel 10-bit ADC, three flexible timer/counters (two 8-bit, one 16-bit), and an on-chip debugWIRE debug system. The V variant operates from 1.8 V to 5.5 V, enabling single-cell Li-ion and 2x AA battery designs.
Technical depth comes from the Harvard-architecture AVR core with in-system self-programmable flash featuring read-while-write capability, six sleep modes for aggressive power budgeting, and a two-wire interface (I2C-compatible), USART, and SPI for connectivity. Boot code sections support field firmware updates over UART.
Typical applications include battery-powered sensor nodes, industrial control panels, hobby and education platforms such as Arduino-compatible boards, and low-power instrumentation where 1.8 V operation is required.
Design consideration: the 10 MHz maximum frequency of the V-grade restricts operation above 1.8 V versus the 20 MHz ATmega168P; verify fmax-versus-VCC derating before substituting higher-clock variants.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
جایگزین‌های drop-in برای ATMEGA168V-10MQR — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای ATMEGA168V-10MQR (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Operating Temperature, RoHS Status, Connectivity, Timers/Counters.
ATMEGA168PB-MU
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←ATMEGA168PA-MU
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←ATMEGA168A-MUR
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←ATMEGA168P-20MUR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←ATMEGA168PV-10MU
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←ATMEGA168V-10MQR حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 10 MHz |
| Flash Memory Size | 16 KB (8K x 16) |
| EEPROM Size | 512 B |
| SRAM Size | 1 KB |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Number of I/O | 23 |
| ADC Channels | 8 (10-bit) |
| Timer/Counters | 2 x 8-bit, 1 x 16-bit |
| Connectivity | SPI, UART/USART, 2-Wire (I2C-compatible) |
| بسته‌بندی | 32-VQFN (5x5 mm) |
| نوع نصب | Surface Mount |
| Packaging | Tape & Reel (R suffix) |
| On-Chip Debug | debugWIRE |
| Sleep Modes | 6 modes |
| Throughput | Up to 10 MIPS at 10 MHz |
| وضعیت RoHS | Green / RoHS compliant per FindIC listing |
پیکربندی پین ATMEGA168V-10MQR
| پین 1 | PD3 (PCINT19/OC2B/INT1) — Port D bit 3 / pin-change interrupt 19 / Timer2 output compare B / external interrupt 1 |
| پین 2 | PD4 (PCINT20/XCK/T0) — Port D bit 4 / pin-change interrupt 20 / USART external clock / Timer0 external clock |
| پین 3 | GND — Ground |
| پین 4 | VCC — Digital supply voltage |
| پین 5 | GND — Ground |
| پین 6 | VCC — Digital supply voltage |
| پین 7 | PB6 (PCINT6/XTAL1/TOSC1) — Port B bit 6 / crystal oscillator input or Timer oscillator input |
| پین 8 | PB7 (PCINT7/XTAL2/TOSC2) — Port B bit 7 / crystal oscillator output or Timer oscillator output |
| پین 9 | PD5 (PCINT21/OC0B/T1) — Port D bit 5 / Timer0 output compare B / Timer1 external clock |
| پین 10 | PD6 (PCINT22/OC0A/AIN0) — Port D bit 6 / Timer0 output compare A / analog comparator positive input |
| پین 11 | PD7 (PCINT23/AIN1) — Port D bit 7 / analog comparator negative input |
| پین 12 | PB0 (PCINT0/CLKO/ICP1) — Port B bit 0 / clock output / Timer1 input capture |
| پین 13 | PB1 (PCINT1/OC1A) — Port B bit 1 / Timer1 output compare A (PWM) |
| پین 14 | PB2 (PCINT2/SS/OC1B) — Port B bit 2 / SPI slave select / Timer1 output compare B |
| پین 15 | PB3 (PCINT3/MOSI/OC2A) — Port B bit 3 / SPI master out / Timer2 output compare A |
| پین 16 | PB4 (PCINT4/MISO) — Port B bit 4 / SPI master in |
| پین 17 | PB5 (PCINT5/SCK) — Port B bit 5 / SPI clock |
| پین 18 | AVCC — ADC supply voltage |
| پین 19 | ADC6 — ADC input channel 6 |
| پین 20 | AREF — ADC reference voltage |
| پین 21 | GND — Ground |
| پین 22 | ADC7 — ADC input channel 7 |
| پین 23 | PC0 (PCINT8/ADC8) — Port C bit 0 / pin-change interrupt 8 / ADC channel 8 |
| پین 24 | PC1 (PCINT9/ADC9) — Port C bit 1 / ADC channel 9 |
| پین 25 | PC2 (PCINT10/ADC10) — Port C bit 2 / ADC channel 10 |
| پین 26 | PC3 (PCINT11/ADC11) — Port C bit 3 / ADC channel 11 |
| پین 27 | PC4 (PCINT12/ADC12/SDA) — Port C bit 4 / ADC channel 12 / 2-wire data |
| پین 28 | PC5 (PCINT13/ADC13/SCL) — Port C bit 5 / ADC channel 13 / 2-wire clock |
| پین 29 | PC6 (PCINT14/RESET) — Reset input (active low) / also debugWIRE and pin-change interrupt 14 |
| پین 30 | PD0 (PCINT16/RXD) — Port D bit 0 / USART receive |
| پین 31 | PD1 (PCINT17/TXD) — Port D bit 1 / USART transmit |
| پین 32 | PD2 (PCINT18/INT0) — Port D bit 2 / external interrupt 0 |
کاربردهای معمول
ATMEGA168V-10MQR مناسب است برای 6 کاربردs: Battery-Powered Sensor Nodes, Industrial Control Panels, Arduino-Compatible Education Platforms, Low-Power Portable Instrumentation, Home Automation and IoT End Nodes, Motor Control and PWM Actuators.
Battery-Powered Sensor Nodes
The ATMEGA168V-10MQR's 1.8 V to 5.5 V supply range directly supports two-AA and single-cell lithium battery rails without an LDO, and its six sleep modes allow duty-cycled operation that stretches battery life from months to years. In a typical wireless sensor node the MCU sleeps in power-down, wakes on a timer or pin-change interrupt, samples an analog channel through the 8-channel 10-bit ADC, then transmits via SPI to a radio. Running at 10 MHz keeps active current modest, and the ADC reference options (VCC, internal, or external AREF) permit ratiometric measurements from bridge and resistive sensors. Performance trade-off: keep clock frequency at or below the datasheet speed-vs-voltage curve limit at 1.8 V, and disable the digital input buffer on unused ADC pins to minimize leakage in deep sleep.
پیشنهادی
Industrial Control Panels
In industrial panel control, the ATMEGA168V-10MQR combines 23 GPIO lines, three timer/counters (two 8-bit, one 16-bit), and a hardware USART for robust Modbus-style RS-485 communication when paired with an external transceiver. The 16 KB self-programming flash with read-while-write support allows firmware field updates over the serial port, an important maintenance feature for installed equipment. Its 1.8-5.5 V tolerance lets the same PCB run from 3.3 V logic or 5 V industrial rails, simplifying mixed-signal board reuse across product variants. The debugWIRE on-chip debug system accesses program flow through the reset pin, reducing development time. Performance consideration: the 10 MIPS throughput suits relay sequencing and metering tasks, but ensure watchdog configuration and brown-out detection are enabled for noisy power environments.
پیشنهادی
Arduino-Compatible Education Platforms
The ATmega168 core is the architecture behind classic Arduino boards, so the ATMEGA168V-10MQR works with the Arduino IDE (board set to ATmega168 at 10 MHz), avr-gcc, and Microchip Studio through ICSP or a USBasp programmer. The VQFN 5x5 mm footprint suits compact educational shields and low-cost learning boards where through-hole ATmega328P DIP packages are too large. The 16 KB flash is sufficient for introductory sketches with serial and sensor libraries, and the 512 B EEPROM stores calibration or user settings across power cycles. Performance consideration: 1 KB SRAM constrains large string- or display-buffer-heavy sketches, so educators should teach memory-conscious coding; for heavier workloads migrate the footprint-compatible ATmega328-family parts on the same land pattern.
پیشنهادی
Low-Power Portable Instrumentation
Handheld meters and portable loggers benefit from the ATMEGA168V-10MQR's 1.8 V floor, which matches the end-of-discharge voltage of two alkaline cells and allows direct ADC ratiometric measurement of battery voltage. The 8-channel 10-bit ADC handles multiple sensor front-ends (temperature, pressure bridge, user potentiometers), while the 16-bit timer generates precise PWM or period measurement for sensor excitation. Data logging uses the 512 B EEPROM for infrequent writes and external SPI flash for bulk storage via the hardware SPI interface. DebugWIRE enables single-wire in-circuit debugging through a production connector, valuable for calibration fixtures. Performance consideration: at 1.8 V keep the clock within the datasheet derating curve and use the internal 8 MHz RC oscillator for sleep-friendly timing rather than an external crystal.
پیشنهادی
Home Automation and IoT End Nodes
Smart-home end nodes such as switch dimmers, door sensors, and thermostat interfaces use the ATMEGA168V-10MQR's 2-wire interface (I2C-compatible) to talk to RTC chips, humidity sensors, and displays, and its USART for wired links. The 23 GPIO lines drive relays and read wall-switch inputs directly, and the 16 KB flash stores device firmware plus a bootloader for over-the-wire updates. Wide 1.8-5.5 V operation lets one hardware design serve both 3.3 V sensor buses and 5 V relay drivers by adjusting only the supply. Performance consideration: the 10 MHz rating caps compute throughput, so reserve this part for nodes without heavy crypto or DSP; pair it with a dedicated RF or power-line module that handles communication protocols offload.
پیشنهادی
Motor Control and PWM Actuators
The ATMEGA168V-10MQR drives small DC and stepper motors using its 16-bit timer for high-resolution phase-correct PWM and the two 8-bit timers for secondary channels and scheduling. Output-compare pins deliver complementary or phase-shifted drive patterns for H-bridge inputs (external driver IC required), and the 10-bit ADC reads back current shunts or potentiometer position for closed-loop speed control executed in a timer interrupt. The 10 MHz core comfortably closes simple PI loops at kilohertz rates. The 1.8-5.5 V range supports 3.3 V logic-friendly MOSFET gate drivers or 5 V industry-standard drivers from the same board. Performance consideration: place ADC sampling synchronous to PWM edges to avoid switching-noise corruption, and enable the brown-out detector so H-bridge states stay defined during supply sag.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای ATMEGA168V-10MQR — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | ATMEGA168PB-MU | ATMEGA168PA-MU | ATMEGA168A-MUR | ATMEGA168PV-10MU |
|---|---|---|---|---|---|
| Package | 32-VQFN (5x5 mm) | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Speed | 10 MHz | 20 MHz | 20 MHz | 20 MHz | 10 MHz |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Operating Voltage | 1.8 V - 5.5 V | 1.8 V - 5.5 V | 1.8 V - 5.5 V | 1.8 V - 5.5 V | 1.8 V - 5.5 V |
| Low-Power Technology | Standard ATmega168V | Enhanced (PB generation) | picoPower | Standard (A generation) | picoPower |
| Lifecycle Status | EOL / superseded | Active | Active | Active | Active |
تفاوت‌های کلیدی
- Documented 1.8 V operation at 10 MHz grade (در مقابلATMEGA168PB-MU)
- Two-times speed headroom in same footprint (در مقابلATMEGA168A-MUR)
- Active long-term supply (در مقابلATMEGA168PB-MU)
- Trade-off: no picoPower (در مقابلATMEGA168PA-MU)
یادداشت‌های طراحی
Observe the speed-versus-voltage derating curve: the V grade is rated 10 MHz, but at 1.8 V minimum supply the safe maximum clock is lower than at 5 V. If your design must run the full 10 MHz near end-of-battery voltage, switch to the internal 8 MHz RC oscillator below the safe crystal frequency or use clock prescaling dynamically. Enable the brown-out detector with a threshold appropriate to your minimum operating voltage so flash writes and SRAM contents remain valid during supply dips.
For the 32-VQFN (MLF) 5x5 mm package, the exposed die pad on the underside must be soldered to a ground pour - it is the primary ground return and thermal path; a floating pad causes unreliable operation and reflow voiding issues. Use a 4x4 via array under the pad to the ground plane. Place 100 nF ceramic decoupling capacitors within 2 mm of VCC pins 4 and 6 and AVCC pin 18, and add 10 uF bulk capacitance near the supply entry. Connect AREF through 100 nF to ground when using internal or VCC references.
Do not leave the RESET pin (29) floating in noisy environments - a 10 kOhm pull-up plus optional 100 nF to ground improves immunity, but note that debugWIRE shares this pin and its fuse configuration disables external reset; disable debugWIRE fuse before final programming. When migrating firmware from the V part to ATmega168A/P/PB generations, review the respective device errata sheets and updated register descriptions - peripheral base behavior is compatible but some timing and fuse-map details changed between generations.
Estimated: at 5 V supply and 10 MHz full activity, ATmega168-class active current is on the order of 5-10 mA (per family datasheet typical values), giving roughly 25-50 mW dissipation. With the VQFN-32 theta_JA near 40-50 C/W on a standard 4-layer board (estimate), junction rise is only 1-3 C above ambient - no heatsinking is required. Thermal design effort should instead focus on the exposed pad solder quality described in the PCB note.
اطلاعات انطباق
FindIC distributor listing identifies the part as GREEN/RoHS compliant with tape-and-reel packaging. REACH, halogen-free, and conflict-minerals status must be confirmed via Microchip's compliance portal for the exact ordering code.
