ATMEGA168V-10AI - AVR 8-bit MCU 16KB Flash 1.8V 10MHz TQFP-32 | Microchip
부품 번호: ATMEGA168V-10AI ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $4.14 | $4.14 |
| 10 | $3.72 | $37.20 |
| 100 | $3.3 | $330.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.65 | $2,650.00 |
ATMEGA168V-10AI 개요
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers, USART, and ADC on one die. Within the power-management hierarchy of embedded systems, the MCU is the system controller: it reads sensors, executes application firmware, and drives actuators. The ATmega168V belongs to the ATmega48/88/168 family of AVR enhanced RISC devices from Microchip Technology (formerly Atmel).
Key features include 131 mostly single-cycle RISC instructions delivering up to 1 MIPS per MHz throughput (10 MIPS at 10 MHz), 8-channel 10-bit ADC, three flexible timer/counters, byte-oriented Two-Wire Interface (I2C-compatible), SPI, and a serial programmable USART. The V-variant is qualified for a 1.8 V minimum supply, enabling single-cell battery and energy-harvesting designs that standard 2.7 V parts cannot support.
Technically, the device uses an advanced Harvard RISC architecture with 32 general-purpose working registers directly connected to the ALU, allowing two independent register accesses in one instruction cycle. In-system self-programming Flash with read-while-write support permits field firmware updates, and debugWIRE provides on-chip debug over a single wire with no dedicated debug pins.
Typical applications include battery-powered sensor nodes, portable instrumentation, industrial control nodes, and consumer appliances, where the 1.8 V operation, low active current, and rich analog peripheral set reduce overall bill-of-materials cost.
A key design consideration: clock selection must match supply voltage - at 1.8 V the maximum safe frequency is 10 MHz, and the CKDIV8 fuse should be used when starting from higher-speed crystals at low supply rails.
This page synthesizes distributor pricing, verified drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet, as of 2026-09-16.
드롭인 대체품: ATMEGA168V-10AI — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATMEGA168V-10AI (동일 폼 팩터 및 풋프린트) — 차이점: Communication Interfaces, Package, SRAM, Working Registers, Operating Temperature.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ATMEGA168PV-10AUR
✅ 드롭인✓ 재고 있음
$1.19 / 개
데이터시트 보기 →ATMEGA168PB-AUR
✅ 드롭인✓ 재고 있음
$1.58 / 개
데이터시트 보기 →ATMEGA328P-AUR
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$2.18 / 개
데이터시트 보기 →ATMEGA88PA-AUR
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$0.82 / 개
데이터시트 보기 →ATMEGA48PA-AUR
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$1.72 / 개
데이터시트 보기 →ATMEGA168V-10AI 최대 정격 & 전기적 특성
| Core Architecture | AVR 8-bit RISC |
| Flash Program Memory | 16 KB |
| SRAM | 1 KB |
| EEPROM | 512 B |
| 최대 클록 주파수 | 10 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Throughput | Up to 10 MIPS (1 MIPS per MHz) |
| Instructions | 131 instructions, most single-cycle |
| GPIO Count | 23 general purpose I/O lines |
| ADC | 8-channel 10-bit |
| Timers/Counters | 3 (two 8-bit, one 16-bit) |
| Communication Interfaces | USART, SPI, Two-Wire Interface (I2C) |
| Debug System | debugWIRE on-chip debug |
| 동작 온도 | -40C to +85C (industrial) |
| 패키지 | TQFP-32 (7x7 mm), gull-wing leads |
| 실장 유형 | Surface Mount |
| Working Registers | 32 x 8-bit general purpose |
ATMEGA168V-10AI 핀 구성
| 핀 1 | PD3 — Port D, bit 3 (GPIO / external interrupt INT1) |
| 핀 2 | PD4 — Port D, bit 4 (GPIO / XCK timer counter external clock) |
| 핀 3 | GND — Ground |
| 핀 4 | VCC — Digital supply voltage (1.8 V to 5.5 V) |
| 핀 5 | GND — Ground |
| 핀 6 | VCC — Digital supply voltage |
| 핀 7 | PB6 — Port B, bit 6 / XTAL1 (inverting oscillator input) / TOSC1 |
| 핀 8 | PB7 — Port B, bit 7 / XTAL2 (oscillator output) / TOSC2 |
| 핀 9 | PD5 — Port D, bit 5 (GPIO / T1 external counter input) |
| 핀 10 | PD6 — Port D, bit 6 (GPIO / AIN0 analog comparator input) |
| 핀 11 | PD7 — Port D, bit 7 (GPIO / AIN1 analog comparator input) |
| 핀 12 | PB0 — Port B, bit 0 (GPIO / XCK0 / T0) |
| 핀 13 | PB1 — Port B, bit 1 (GPIO / T1 / OC1A PWM output) |
| 핀 14 | PB2 — Port B, bit 2 (GPIO / SS / OC1B PWM output) |
| 핀 15 | PB3 — Port B, bit 3 (MOSI SPI / OC2A PWM output) |
| 핀 16 | PB4 — Port B, bit 4 (MISO SPI data input) |
| 핀 17 | PB5 — Port B, bit 5 (SCK SPI clock) |
| 핀 18 | AVCC — Analog supply voltage for ADC |
| 핀 19 | ADC6 — Dedicated ADC input channel 6 |
| 핀 20 | AREF — Analog reference voltage for ADC |
| 핀 21 | GND — Ground |
| 핀 22 | ADC7 — Dedicated ADC input channel 7 |
| 핀 23 | PC0 — Port C, bit 0 (GPIO / ADC0 input) |
| 핀 24 | PC1 — Port C, bit 1 (GPIO / ADC1 input) |
| 핀 25 | PC2 — Port C, bit 2 (GPIO / ADC2 input) |
| 핀 26 | PC3 — Port C, bit 3 (GPIO / ADC3 input) |
| 핀 27 | PC4 — Port C, bit 4 (GPIO / ADC4 / SDA Two-Wire data) |
| 핀 28 | PC5 — Port C, bit 5 (GPIO / ADC5 / SCL Two-Wire clock) |
| 핀 29 | PC6 — RESET (active-low reset input, PC6 when used as GPIO is disabled by fuse) |
| 핀 30 | PD0 — Port D, bit 0 (GPIO / USART RXD) |
| 핀 31 | PD1 — Port D, bit 1 (GPIO / USART TXD) |
| 핀 32 | PD2 — Port D, bit 2 (GPIO / external interrupt INT0) |
일반적인 애플리케이션
ATMEGA168V-10AI 적합 용도: 6 애플리케이션s: Battery-Powered Sensor Nodes, Industrial Control Nodes, Portable Instrumentation, Consumer Appliance Control, RF and Wireless Modules, Educational and Prototyping Platforms.
Battery-Powered Sensor Nodes
The ATMEGA168V-10AI's 1.8 V minimum supply lets it run directly from two alkaline cells or a single LiFePO4 cell without a boost converter, while the 8-channel 10-bit ADC digitizes sensor outputs with no external converter. Its AVR core reaches 1 MIPS per MHz, so firmware can clock down to a few MHz for energy savings yet retain adequate processing headroom. Placed in a periodic wake-measure-transmit topology with the power-save sleep mode, the MCU sleeps between conversions and samples; trade-off is that sleep current on this standard die is higher than the picoPower ATMEGA168PV, so duty cycling strategy matters for multi-year battery life.
추천
Industrial Control Nodes
With an industrial temperature rating of -40C to +85C and a watchdog timer with separate on-chip oscillator, the ATMEGA168V-10AI fits factory automation sensor nodes, relay drivers, and motor start/stop controllers. The 10 MHz/10 MIPS throughput handles PID loops at kilohertz rates, and three timers provide PWM outputs for actuator drive. The Two-Wire Interface and USART link the node to PLC backbones or RS-485 transceivers; operation down to 1.8 V also tolerates brownout conditions on unregulated industrial rails when paired with a supervisor. The TQFP-32 gull-wing package withstands thermal cycling typical of panel-mounted electronics.
추천
Portable Instrumentation
Handheld meters and loggers benefit from the 1.8 V to 5.5 V supply flexibility: the same PCB runs from a Li-ion pack (3.0-4.2 V) or two-cell AAA stack. The 8-channel 10-bit ADC with internal 1.1 V reference digitizes user controls, thermistors, and battery voltage, while the 512 B EEPROM stores calibration constants that survive battery replacement. Throughput of up to 10 MIPS supports on-device averaging and display refresh. debugWIRE allows firmware iteration on populated boards over the RESET line only, preserving all application pins for signal I/O in the cramped 32-pin layout.
추천
Consumer Appliance Control
Small appliances, fan controllers, and thermostat interfaces use the ATMEGA168V-10AI for its cost balance of memory and peripherals: 16 KB Flash holds a full state machine plus EEPROM-backed user settings, while hardware PWM from the 16-bit Timer1 drives motor or heater control with jitter-free duty cycles. The 5 V-tolerant supply range lets it run directly from transformer-derived unregulated supplies, and the internal RC oscillator removes the crystal BOM cost where timing accuracy of 1-2 percent is acceptable. EFT immunity and brownout detection improve reliability in mains-adjacent environments with switch-mode loads.
추천
RF and Wireless Modules
The ATMEGA168V-10AI commonly fronts sub-GHz and 2.4 GHz transceivers via SPI, handling packet framing, retries, and protocol state machines while the radio handles the air interface. At 10 MHz it sustains typical low-rate telemetry stacks, and the USART bridges to legacy modems. Its 1.8 V capability matches modern transceiver I/O rails, avoiding level shifters. Design note: keep the SPI clock below fosc/4 and isolate the RF section ground; the internal RC oscillator suffices for protocol timing but external crystals improve USART baud accuracy for reliable links at the minimum supply voltage.
추천
Educational and Prototyping Platforms
As the MCU class used in the Arduino lineage (ATmega168/328 family), the ATMEGA168V-10AI remains popular in teaching labs and prototypes. The AVR supports self-programming via an onboard bootloader, so USB-serial programmers can reflash in the field; 16 KB Flash accommodates Arduino-class sketches. The 1.8 V rating lets students explore low-voltage and power-management concepts unavailable on fixed-5V parts. debugWIRE plus the ISP header give two distinct programming/debug paths on the same board. Toolchain support (AVR-GCC, Microchip Studio, avrdude) is mature and free, reducing adoption cost for education.
추천
추천 제품 요약
엔지니어링 참조 데이터: ATMEGA168V-10AI — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ATMEGA168PV-10AUR | ATMEGA168PB-AUR | ATMEGA328P-AUR | ATMEGA88PA-AUR | ATMEGA48PA-AUR |
|---|---|---|---|---|---|---|
| Package | TQFP-32 | TQFP-32 - same | TQFP-32 - same | TQFP-32 - same | TQFP-32 - same | TQFP-32 - same |
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 16 KB | 32 KB | 8 KB | 4 KB |
| SRAM | 1 KB | 1 KB | 2 KB | 2 KB | 1 KB | 256 B |
| EEPROM | 512 B | 512 B | 512 B | 1 KB | 512 B | 256 B |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Max Clock Frequency | 10 MHz | 10 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Timers | 3 | 3 | 5 | 3 | 3 | 3 |
| Power Technology | Standard (pre-picoPower) | picoPower | picoPower | picoPower | picoPower | picoPower |
| Temperature Range | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
주요 차별점
- Guaranteed 1.8 V operation at 10 MHz (vs ATMEGA168-20AI)
- Register-for-register identical picoPower upgrade exists (vs ATMEGA168PV-10AUR)
- Lower cost than 32 KB pin-compatible alternative (vs ATMEGA328P-AUR)
설계 노트
Validate the safe operating point between supply voltage and clock frequency: the ATMEGA168V-10AI is qualified at 10 MHz only within its full 1.8 V to 5.5 V range, but oscillators chosen near the maximum must be rechecked against the frequency-vs-VCC curve in the Microchip datasheet when the rail dips below 2.7 V. Add a 100 nF ceramic decoupling capacitor at both VCC pins (pins 4 and 6) and at AVCC (pin 18), each placed within a few millimeters of the pin with a solid ground return to pin 3, 5 or 21. Estimated: a 10 mA active core at 3.3 V draws roughly 33 mW, well within package limits.
AVCC must be connected to VCC even if the ADC is unused, per the datasheet; never leave it floating. Route AREF with a dedicated 100 nF capacitor to ground and keep the analog ground return separate until it meets the digital ground at a single star point. If ADC6/ADC7 are used as dedicated analog inputs, keep their traces short and away from the crystal (PB6/PB7) nets to prevent crosstalk into conversions. TQFP-32 land pattern should follow the manufacturer package drawing dimensions rather than generic footprints to avoid solder bridging on the 0.8 mm pitch.
The most common ATmega168 integration errors: (1) leaving RESET (pin 29) unconnected - it must be pulled high via 10k resistor or wired to an ISP/debugWIRE programmer; disabling the JTAG-style reset via fuse locks out ISP recovery, so keep external access. (2) Selecting a 16 MHz crystal - the V speed grade tops out at 10 MHz. (3) Ignoring the CKDIV8 factory fuse, which starts the internal 8 MHz RC at 1 MHz - many first-boot firmware failures stem from this. (4) Replacing with ATMEGA168PB without reviewing the PB migration note, since Timer register addresses differ slightly.
When driving relays or solenoids from Timer1 PWM outputs, add series resistors (estimated 100-330 ohm, chosen from driver input capacitance) and local ground fills to keep switching noise out of the ADC front-end. The internal RC oscillator spreads harmonics more than a crystal, which can actually ease conducted-emissions compliance in cost-sensitive appliance designs. Keep the USART routing away from motor driver edges, or use differential RS-485 for runs longer than a few centimeters.
규정 준수 정보
Industrial-grade 'AI' suffix TQFP-32 part. RoHS and lead-free status per Microchip product page; REACH and halogen-free status not stated in provided data - verify with Microchip compliance documentation.
