ATMEGA168PV-10AUR - 8-Bit AVR MCU 16KB 10MHz TQFP-32 | Microchip
MPN: ATMEGA168PV-10AUR ⚠ Last Time Buy| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.63 | $1.63 |
| 10 | $1.55 | $15.50 |
| 100 | $1.42 | $142.00 |
| 500 | $1.3 | $650.00 |
| 1,000 | $1.19 | $1,190.00 |
ATMEGA168PV-10AUR Overview
An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle, positioning it within the power-management hierarchy as a complete embedded system-on-chip combining CPU, program memory, data memory, timers, ADC and communication peripherals. The AVR ATmega family is the direct ancestor of the MCU used on classic Arduino boards, making it one of the most widely documented controller families in embedded design.
Key features include 23 programmable I/O lines, three flexible timer/counters, a 10-bit ADC, and Microchip picoPower technology that minimizes consumption in sleep modes. Read-while-write flash support allows in-system programming without halting execution. The 1.8V minimum supply distinguishes the V-grade P-variant from standard ATmega168 parts, enabling battery-powered designs running directly from two alkaline cells.
The AVR core uses 32 general-purpose working registers directly connected to the ALU, giving single-cycle execution of most instructions and deterministic timing attractive for bit-banged protocols and motor control loops. Peripherals include SPI, I2C-compatible TWI and USART serial interfaces plus an analog comparator.
Typical applications include battery-powered sensor nodes, industrial control panels, HVAC controllers, hobbyist and educational embedded platforms, and simple motor control. The wide 1.8V to 5.5V operating range lets one design span alkaline, lithium and regulated 5V supplies.
For design, reserve the hardware debug/programming pins (MOSI, MISO, SCK, RESET) as header access to allow ISP flash updates in production.
This page synthesizes distributor pricing, drop-in alternatives within the ATmega168 family, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for ATMEGA168PV-10AUR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATMEGA168PV-10AUR (same form factor and footprint) — differing in Communication Interfaces, Timer/Counters, RoHS Status, Working Registers, Instructions.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATMEGA168PA-AUR
✅ Drop-In📋 Reference alternative (not in catalog)
ATMEGA168PB-AUR
✅ Drop-In✓ In Stock
$1.58 / Unit
View Datasheet →ATMEGA168PA-ANR
✅ Drop-In✓ In Stock
$1.44 / Unit
View Datasheet →ATMEGA168A-AUR
✅ Drop-In✓ In Stock
$1.45 / Unit
View Datasheet →ATMEGA168P-20AU
✅ Drop-In✓ In Stock
$2.91 / Unit
View Datasheet →ATMEGA168-20AUR
✅ Drop-In✓ In Stock
$2.76 / Unit
View Datasheet →ATMEGA168PV-10AUR Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit AVR RISC |
| Maximum Clock Frequency | 10 MHz |
| Flash Memory | 16 KB (8K x 16) |
| EEPROM | 512 B |
| SRAM | 1 KB (1K x 8) |
| Supply Voltage Range | 1.8 V to 5.5 V |
| General Purpose I/O | 23 lines |
| Timer/Counters | 3 flexible timer/counters |
| ADC Resolution | 10-bit |
| Communication Interfaces | USART, SPI, TWI (I2C-compatible) |
| Package | 32-TQFP (7x7 mm) |
| Mounting Type | Surface Mount |
| Temperature Grade | Industrial (-40C to +85C) |
| Technology Feature | picoPower low-power technology |
| Programming | ISP flash with read-while-write |
| Working Registers | 32 x 8-bit general purpose |
| Packaging | Tape & Reel (R suffix) |
ATMEGA168PV-10AUR Pin Configuration
| Pin 1 | PD3 (PCINT19/OC2B/INT1) — Port D, bit 3 / pin change interrupt / Timer2 output compare B / external interrupt 1 |
| Pin 2 | PD4 (PCINT20/XCK/T0) — Port D, bit 4 / pin change interrupt / USART external clock / Timer0 clock input |
| Pin 3 | GND — Ground |
| Pin 4 | VCC — Digital supply voltage |
| Pin 5 | GND — Ground |
| Pin 6 | VCC — Digital supply voltage |
| Pin 7 | PB6 (PCINT6/XTAL1/TOSC1) — Port B, bit 6 / crystal oscillator pin 1 / timer oscillator |
| Pin 8 | PB7 (PCINT7/XTAL2/TOSC2) — Port B, bit 7 / crystal oscillator pin 2 |
| Pin 9 | PD5 (PCINT21/OC0B/T1) — Port D, bit 5 / Timer0 output compare B / Timer1 clock input |
| Pin 10 | PD6 (PCINT22/OC0A/AIN0) — Port D, bit 6 / Timer0 output compare A / analog comparator positive input |
| Pin 11 | PD7 (PCINT23/AIN1) — Port D, bit 7 / analog comparator negative input |
| Pin 12 | PB0 (PCINT0/CLKO/ICP1) — Port B, bit 0 / clock output / Timer1 input capture |
| Pin 13 | PB1 (PCINT1/OC1A) — Port B, bit 1 / Timer1 output compare A (PWM) |
| Pin 14 | PB2 (PCINT2/SS/OC1B) — Port B, bit 2 / SPI slave select / Timer1 output compare B (PWM) |
| Pin 15 | PB3 (PCINT3/OC2A/MOSI) — Port B, bit 3 / Timer2 output compare A / SPI master output |
| Pin 16 | PB4 (PCINT4/MISO) — Port B, bit 4 / SPI master input |
| Pin 17 | PB5 (PCINT5/SCK) — Port B, bit 5 / SPI clock, used for ISP programming |
| Pin 18 | AVCC — ADC supply voltage |
| Pin 19 | ADC6 — Analog input channel 6 |
| Pin 20 | AREF — ADC analog reference voltage |
| Pin 21 | GND — Ground |
| Pin 22 | ADC7 — Analog input channel 7 |
| Pin 23 | PC0 (PCINT8/ADC8) — Port C, bit 0 / ADC channel 8 |
| Pin 24 | PC1 (PCINT9/ADC9) — Port C, bit 1 / ADC channel 9 |
| Pin 25 | PC2 (PCINT10/ADC10) — Port C, bit 2 / ADC channel 10 |
| Pin 26 | PC3 (PCINT11/ADC11) — Port C, bit 3 / ADC channel 11 |
| Pin 27 | PC4 (PCINT12/ADC12/SDA) — Port C, bit 4 / ADC channel 12 / TWI data line |
| Pin 28 | PC5 (PCINT13/ADC13/SCL) — Port C, bit 5 / ADC channel 13 / TWI clock line |
| Pin 29 | PC6 (PCINT14/RESET) — Reset input, active low; also used for ISP programming |
| Pin 30 | PD0 (PCINT16/RXD) — Port D, bit 0 / USART receive |
| Pin 31 | PD1 (PCINT17/TXD) — Port D, bit 1 / USART transmit |
| Pin 32 | PD2 (PCINT18/INT0) — Port D, bit 2 / external interrupt 0 |
Typical Applications
ATMEGA168PV-10AUR is suitable for 6 applications: Battery-Powered Sensor Nodes, Industrial Control Panels, Hobbyist and Educational Embedded Platforms, HVAC and Appliance Controllers, Motor Control and Actuator Drivers, IoT Edge Nodes and Gateways (Front-End).
Battery-Powered Sensor Nodes
The ATMEGA168PV-10AUR's picoPower technology and 1.8V minimum supply make it a natural fit for battery-operated wireless and wired sensor nodes. Running directly from two alkaline cells (1.8V to 3.0V) eliminates a boost converter, reducing BOM cost and quiescent loss. The 10-bit ADC digitizes sensor outputs such as temperature, humidity and light levels, while pin-change interrupts wake the MCU from power-down sleep for event-driven sampling. Because AVR dynamic current scales with clock frequency, firmware can run at 1MHz or lower between samples to extend battery life into multi-year territory, then burst to 10MHz for radio or computation. Recommended companions include low-power voltage references and serial EEPROMs for calibration data.
Recommended
Industrial Control Panels
In industrial control panels, the ATMEGA168PV-10AUR's industrial temperature rating (-40C to +85C) and 5V-tolerant I/O structure suit relay-driven, noisy environments. The 23 GPIO lines drive status indicators, keypads and small relay matrices, while the 10-bit ADC reads potentiometer setpoints and analog transducers across the 1.8V to 5.5V supply range. The three flexible timer/counters generate PWM for actuator positioning or measured pulse inputs from flow and encoder sensors. Its 16KB flash accommodates protocol handling and self-diagnostics without external memory, and the 512B EEPROM preserves configuration across power cycles. The TQFP-32 footprint also allows drop-in migration to faster ATMEGA168P-20AU parts when control loop demands grow.
Recommended
Hobbyist and Educational Embedded Platforms
The ATMEGA168PV-10AUR belongs to the same ATmega168 family used in classic Arduino boards, giving it the largest tutorial, library and toolchain ecosystem of any 8-bit MCU class. Engineers and educators can develop with avr-gcc, Microchip Studio, or Arduino IDE, and program via low-cost ISP programmers using the standard six-pin header on MOSI/MISO/SCK/RESET. The read-while-write flash permits bootloader-based USB or serial reprogramming, ideal for classroom settings where students repeatedly flash code. Its 16KB flash and 1KB SRAM comfortably host beginner-to-intermediate projects such as robotics, displays and data acquisition, while the pin-compatible ATMEGA168PB-AUR provides a clear upgrade path on identical hardware.
Recommended
HVAC and Appliance Controllers
HVAC dampers, fan controls and small appliance boards benefit from the ATMEGA168PV-10AUR's combination of ADC inputs, hardware PWM and robust industrial temperature rating. Timer/counter PWM outputs drive fan and bliver speed control through MOSFETs, while the 10-bit ADC monitors NTC thermistors for closed-loop temperature regulation across the 1.8V to 5.5V range, allowing direct operation from transformer-derived or battery-backed supplies. The TWI interface reads remote temperature sensors and communicates with display drivers, and the USART provides service diagnostics. The 512B EEPROM stores user setpoints and fault logs, surviving power outages without battery backup, a key advantage over RAM-based settings storage in appliance designs.
Recommended
Motor Control and Actuator Drivers
Small DC and stepper motor applications exploit the ATMEGA168PV-10AUR's three timer/counters for complementary PWM generation and its deterministic single-cycle AVR core for tight commutation loops. At 10MHz, interrupt latency remains predictable, which matters for hall-sensor commutation and current-limit interrupts. The 10-bit ADC samples shunt-resistor current feedback for closed-loop torque control, and SPI connects external gate drivers or motor-driver ICs. Running from a 5V industrial rail keeps logic levels compatible with common driver ICs, while the picoPower die keeps standby consumption low when actuators idle. Firmware can be updated in the field through the USART bootloader thanks to read-while-write flash support.
Recommended
IoT Edge Nodes and Gateways (Front-End)
As a low-power front-end MCU in IoT nodes, the ATMEGA168PV-10AUR aggregates sensor data and manages a radio module over SPI or UART, sleeping between transmissions to conserve battery. The 1.8V operation matches modern coin-cell and Li-SOCl2 chemistries directly, and picoPower sleep modes keep average draw in the microamp range. With 16KB flash, compact protocol stacks (MQTT-SN over a serial radio, LoRa module AT command handling) fit without external memory. The 10-bit ADC handles analog sensors while TWI serves digital ones. Designers should budget SRAM carefully at 1KB, or move to the pin-compatible 2KB-SRAM ATMEGA168PB-AUR if buffers grow, without any PCB change.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA168PV-10AUR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA168PA-AUR | ATMEGA168PB-AUR | ATMEGA168A-AUR | ATMEGA168P-20AU |
|---|---|---|---|---|---|
| Package | 32-TQFP (7x7) | 32-TQFP (7x7) - same | 32-TQFP (7x7) - same | 32-TQFP (7x7) - same | 32-TQFP (7x7) - same |
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| SRAM | 1 KB | 1 KB | 2 KB | 1 KB | 1 KB |
| Max Clock Frequency | 10 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.0 V to 5.5 V (frequency dependent) | 1.8 V to 5.5 V |
| Power Technology | picoPower (P die) | picoPower (PA die, lowest current) | picoPower+ (PB die) | Standard (A die, higher current) | picoPower (P die) |
| Lifecycle Status | Transition (newer device available) | Active (recommended successor) | Active | Active | Active |
Key Differentiators
- Lowest supply floor in the family (vs ATMEGA168A-AUR)
- Lower active current than the recommended successor (vs ATMEGA168PA-AUR)
- Cost-optimized speed grade (vs ATMEGA168P-20AU)
Design Notes
Provide a 2x3 ISP programming header wired to PB3 (MOSI, pin 15), PB4 (MISO, pin 16), PB5 (SCK, pin 17), PC6 (RESET, pin 29), VCC and GND. Add a 10k pull-up on RESET to VCC for production reliability. Keep ISP traces short and avoid routing them under crystals. This header costs almost nothing and preserves in-field firmware updates via AVR ISP mkII or Atmel-ICE throughout the product life.
Decouple both VCC pins (4 and 6) and AVCC (pin 18) with 100nF ceramic capacitors placed within 5 mm of each pin, plus one 10uF bulk capacitor per supply rail. AVCC must be connected to VCC through a low-pass RC network (10 ohm/100nF) when ADC accuracy matters; per the datasheet family reference, AVCC should not differ from VCC by more than 0.3V. Connect AREF to a clean reference (internal bandgap or external reference) with its own 100nF capacitor, never directly to a supply rail.
When migrating to the ATMEGA168PA or ATMEGA168PB successors, review fuse settings and register names: the PB variant reassigns several timer/PWM pin mappings versus the P die, so recompiled firmware must be functionally validated, not just re-built. Also note the PV die caps out at 10MHz; designs overclocked from the 20MHz ATMEGA168 family will not run correctly on this speed grade. Verify clock fuses (CKDIV8 default on fresh parts) before first programming to avoid a seemingly dead board.
Compliance Information
FindIC listing identifies the ATMEGA168PV-10AUR as GREEN (RoHS/halogen-forward) with lead-free TQFP packaging; full REACH and conflict-minerals status should be confirmed from the Microchip product compliance portal.
