ATMEGA164PV-10MU - 8-Bit AVR MCU, 10MHz, 16KB Flash | Microchip
MPN: ATMEGA164PV-10MU ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.36 | $2.36 |
| 10 | $2.15 | $21.50 |
| 100 | $1.92 | $192.00 |
| 500 | $1.74 | $870.00 |
| 1,000 | $1.58 | $1,580.00 |
ATMEGA164PV-10MU Overview
An 8-bit AVR ATmega microcontroller is a self-contained processor core, memory, and peripheral system on a single chip, sitting within the wider hierarchy of microcontroller units (MCUs) -> embedded processors -> semiconductors. The AVR architecture uses a Harvard design with 32 general-purpose working registers directly connected to the ALU, allowing most of the 133 instructions to execute in a single clock cycle.
Key features include the picoPower technology suite (idle, power-down, power-save, standby, and extended-standby sleep modes) for battery applications, read-while-write flash for safe self-programming, two USARTs for multi-channel serial communication, and an 8-channel 10-bit ADC. The wide 1.8V to 5.5V supply range directly enables coin-cell and single-cell Li-ion designs without a dedicated regulator.
Technically, the device integrates three flexible timer/counters with compare modes and PWM, a byte-oriented two-wire interface (TWI/I2C), an SPI serial port, a real-time counter, programmable watchdog timer, on-chip debug via JTAG, and four power-saving sleep modes. In-system programmability over SPI allows firmware updates without removal from the PCB.
Typical applications include battery-powered sensor nodes, industrial control panels, HVAC and metering systems, and embedded peripherals that need two independent UART links at very low sleep current.
Design consideration: the 10MHz speed grade (V suffix) is rated across the full 1.8V to 5.5V range; if your design runs above 10MHz you must select the 20MHz A-variant instead. BOD (brown-out detection) configuration in the fuses strongly affects power-down current.
This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for ATMEGA164PV-10MU — 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 ATMEGA164PV-10MU (same form factor and footprint) — differing in Package, ADC, Instruction Set, EEPROM, SRAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATMEGA164PA-MUR
✅ Drop-In✓ In Stock
$2.89 / Unit
View Datasheet →ATMEGA164P-20MUR
✅ Drop-In✓ In Stock
$1.5 / Unit
View Datasheet →ATMEGA164A-MU
✅ Drop-In✓ In Stock
$3.01 / Unit
View Datasheet →ATMEGA324PA-MU
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
ATMEGA644-20MU
✅ Drop-In📋 Reference alternative (not in catalog)
ATMEGA1284P-MUR
✅ Drop-In ⚠️ 参数待验证✓ In Stock
Contact for price
View Datasheet →ATMEGA164PV-10MU Maximum Ratings & Electrical Characteristics
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 10 MHz |
| Flash Memory | 16 KB (8K x 16) ISP |
| SRAM | 1 KB |
| EEPROM | 512 B |
| Supply Voltage Range | 1.8 V to 5.5 V |
| General Purpose I/O | 32 I/O lines |
| Timers/Counters | 3 (with compare modes and PWM) |
| USART | 2 |
| ADC | 8-channel, 10-bit |
| Connectivity | I2C (TWI), SPI, UART/USART |
| Low Power Technology | picoPower |
| On-Chip Debug | JTAG |
| Package | 44-VQFN (7x7 mm) |
| Mounting Type | Surface Mount |
| Lifecycle Status | Active |
ATMEGA164PV-10MU 44-vqfn (7x7 mm) Pin Configuration Guide
Pin configuration for ATMEGA164PV-10MU (44-vqfn (7x7 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for ATMEGA164PV-10MU.
Refer to the datasheet for full pin configuration.
Typical Applications
ATMEGA164PV-10MU is suitable for 6 applications: Battery-Powered Sensor Nodes, Industrial Control Panels, HVAC and Smart Metering Systems, Embedded Serial Communication Bridges, Consumer Appliance Control, Data Acquisition and Test Fixtures.
Battery-Powered Sensor Nodes
The ATMEGA164PV-10MU fits battery-powered sensor nodes because its picoPower technology provides power-down, power-save, and extended-standby sleep modes, and its 1.8V minimum supply allows direct operation from two alkaline cells without a boost regulator. In a typical wireless sensor node the MCU sleeps in power-save mode with the real-time counter active, wakes on an RTC interrupt, reads an analog sensor through the 8-channel 10-bit ADC, and transmits over one USART. The second USART can remain dedicated to a debug or secondary radio interface. Designers should disable the BOD or set it appropriately in fuses, since brown-out detection dominates power-down current. The 10MHz speed grade is ample for periodic sampling tasks, trading compute headroom for voltage-range safety at low cell voltage.
Recommended
Industrial Control Panels
Industrial control panels benefit from the ATMEGA164PV-10MU because it runs directly from a 5V industrial rail, offers 32 GPIO lines for relay and button interfacing, and provides two independent USARTs for separate fieldbus and HMI links. The three flexible timer/counters with compare modes generate PWM outputs for actuator control, while the byte-oriented TWI interface reads configuration EEPROMs or expansion IO expanders on the same board. The watchdog timer supports autonomous fault recovery required in unattended installations, and JTAG on-chip debug enables in-field diagnostics without firmware instrumentation. Because the part is rated across the full 1.8V to 5.5V range, the same PCB design can serve both 3.3V and 5V panel variants, simplifying procurement and reducing board-level qualification effort across product families.
Recommended
HVAC and Smart Metering Systems
HVAC controllers and smart meters use the ATMEGA164PV-10MU where metering accuracy and standby efficiency must coexist. The 10-bit ADC samples temperature, pressure, or current-sense channels across eight multiplexed inputs, while the 512B EEPROM stores calibration coefficients and consumption registers that survive power loss. The two USARTs allow simultaneous communication with an energy-metering front end and a maintenance/telemetry port. PicoPower sleep modes keep average current low during long idle intervals between metering polls, and the real-time counter maintains timekeeping in power-save mode for tariff scheduling. Read-while-write flash allows the firmware to log events into its own program memory space safely, supporting audit trails mandated in utility metering installations.
Recommended
Embedded Serial Communication Bridges
The dual USARTs of the ATMEGA164PV-10MU make it a natural fit for protocol-conversion and serial-bridge applications, translating between two independent UART domains such as a legacy device bus and a modern telemetry link. Its AVR core executes most of the 133 instructions in a single clock cycle, so software UART framing and CRC checking at 10MHz comfortably sustain mid-range baud rates with margin. SPI and TWI interfaces let the bridge additionally service SPI-flash buffers or I2C peripheral expansion. Because the flash supports read-while-write, the device can reflash its own protocol stack in the field over either serial channel, an important feature for deployed communication equipment. The 44-pin VQFN keeps the footprint compact for dense interface cards.
Recommended
Consumer Appliance Control
Appliance control boards - from coffee machines to small white goods - deploy the ATMEGA164PV-10MU for its combination of low cost, five-volt noise immunity, and adequate peripheral integration. Four 8-bit GPIO ports drive displays, relays, and read user-interface buttons with internal pull-ups, while timer PWM controls heater or motor power levels without external controllers. The 10-bit ADC reads NTC thermistors on up to eight channels for multi-zone temperature supervision. PicoPower standby modes let appliances meet aggressive off-mode standby-power regulations, since the MCU can wake from power-down on level changes or RTC events. The VQFN (7x7 mm) package suits cost-driven single-sided layouts while remaining hand-serviceable with rework equipment on the factory line.
Recommended
Data Acquisition and Test Fixtures
Bench test fixtures and small data-acquisition modules use the ATMEGA164PV-10MU for its 8-channel, 10-bit ADC combined with dual USART streaming. One UART feeds acquired samples to a host PC while the second manages fixture-side instrument control, and the SPI port interfaces external precision ADCs or digital potentiometers where the internal converter resolution is insufficient. JTAG on-chip debugging permits single-stepping through fixture sequencer firmware during bring-up, reducing development iteration time. The wide 1.8V to 5.5V supply range lets one fixture design service both 3.3V and 5V devices under test by simply changing the MCU supply and ADC reference. Timer capture inputs timestamp external events, enabling simple frequency and interval measurement without dedicated counter ICs.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA164PV-10MU — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA164PA-MUR | ATMEGA164P-20MUR | ATMEGA164A-MU | ATMEGA644-20MU |
|---|---|---|---|---|---|
| Package | 44-VQFN (7x7) | 44-VQFN (7x7) - same | 44-VQFN (7x7) - same | 44-VQFN (7x7) - same | 44-VQFN (7x7) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 64 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 4 KB |
| Maximum Clock Speed | 10 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| picoPower Low-Power Technology | Yes | Yes | Yes | No | No |
| USART Count | 2 | 2 | 2 | 2 | 2 |
| Lifecycle Status | Active | Active (designated newer device) | Active | Active | Active |
Key Differentiators
- picoPower sleep modes for battery designs (vs ATMEGA164A-MU)
- Widest voltage range in the 16KB family (vs ATMEGA164A-MU)
- Dual USARTs in a 16KB flash device (vs ATMEGA644-20MU)
- Designated successor available with more clock headroom (vs ATMEGA164PA-MUR)
Design Notes
Sleep current in power-down mode depends heavily on fuse configuration: disable the brown-out detector (or set the lowest valid threshold), disable the watchdog if unused, and configure unused pins as inputs with pull-ups or outputs driven low to prevent floating-pin leakage. Estimated: at 3V from two AA cells, a 1uA sleep budget yields roughly 6-9 months of standby for 2000 mAh cells, so measure your actual power-down current on real silicon rather than trusting typical figures. The 1.8V floor allows end-of-discharge operation below most 2.7V-minimum ATmega variants.
The 44-VQFN (7x7) exposed pad and fine pitch require a reflow process; for hand rework use drag soldering with flux and verify shorts under magnification or X-ray. Place 100 nF ceramic decoupling capacitors within 2-3 mm of each VCC/GND pair, plus a 10 uF bulk capacitor near the supply entry. The exposed die pad should be connected to ground for thermal and EMC performance; a via array under the pad also aids inspection. Keep the ISP header (MOSI, MISO, SCK, RESET) routed and accessible for field firmware updates.
The most frequent migration error is ignoring the speed-versus-voltage derating: this V-graded part must not be clocked above 10MHz, while PA and non-V variants support 20MHz only within their specified voltage ranges. Second, JTAG pins (shared with port C) are JTAG-enabled by default in fuses; if you need PC2-PC5 as GPIO, disable JTAG in the fuse bits or software. Third, EEPROM wear during power glitches corrupts calibration data - use a validated BOD level and gate EEPROM writes behind a supply-good check. Always verify fuse settings after switching between PV, PA, and A variants.
Compliance Information
RoHS/lead-free status per Microchip standard ATmega VQFN product listings; REACH, halogen-free, and conflict-minerals status not stated in provided data.
