ATMEGA164PV-10MUR - 8-bit AVR MCU 16KB Flash 10MHz | Microchip
MPN: ATMEGA164PV-10MUR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.9 | $1.90 |
| 10 | $1.75 | $17.50 |
| 100 | $1.6 | $160.00 |
| 500 | $1.45 | $725.00 |
| 1,000 | $1.3 | $1,300.00 |
ATMEGA164PV-10MUR Overview
A microcontroller (MCU) is a complete computing system on a single chip, combining a processor core, program memory, data memory, and peripherals. The ATmega164PV belongs to the AVR family of 8-bit RISC microcontrollers, which sits within Microchip's broader portfolio of embedded processing ICs. AVR cores execute most instructions in a single clock cycle through their advanced RISC architecture, giving high code efficiency and deterministic real-time behavior that CISC architectures struggle to match.
Key features include the picoPower technology suite for ultra-low sleep-mode consumption, read-while-write flash for safe in-application firmware updates, a byte-oriented Two-Wire Interface (TWI/I2C) for peripheral expansion, an SPI serial port, and a real-time counter with separate oscillator. The 133-instruction set, mostly single-cycle, plus 32 general-purpose working registers directly connected to the ALU, enable throughput approaching 1 MIPS per MHz.
Architecturally, the ATmega164PV uses a Harvard structure with separate program and data buses. The 10-bit successive-approximation ADC supports up to 8 single-ended channels, while the JTAG interface provides on-chip debugging and boundary-scan capability. Brown-out detection and an internal RC oscillator reduce external component count.
Typical applications include industrial sensor nodes, battery-powered meters, HVAC and building automation controllers, and consumer appliance control boards where 2.7V-5.5V wide-voltage operation and low standby power are essential.
Design consideration: note that Microchip lists the pin-compatible ATMEGA164PA as the newer replacement device; new designs should evaluate the PA variant, which offers higher speed grades in the same 44-VQFN footprint while remaining firmware-compatible.
This page synthesizes distributor pricing, drop-in alternatives, pin-level cross-references, and practical design notes not found in the manufacturer datasheet, as of 2026-09-16.
Drop-in alternatives for ATMEGA164PV-10MUR β 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-10MUR (same form factor and footprint) β differing in Package, ADC, Instruction Set, Maximum Clock Frequency, Supply Voltage Range.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATMEGA164PA-MUR
β Drop-Inβ In Stock
$2.89 / Unit
View Datasheet βATMEGA164P-20MUR
β Drop-Inβ In Stock
$1.5 / Unit
View Datasheet βATMEGA164A-MU
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$3.01 / Unit
View Datasheet βATMEGA644PA-MUR
β Drop-Inπ Reference alternative (not in catalog)
ATMEGA644PV-10MUR
β Drop-Inπ Reference alternative (not in catalog)
ATMEGA164PV-10MUR Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit AVR RISC |
| Core Size | 8-bit |
| Maximum Clock Frequency | 10 MHz |
| Flash Memory | 16 KB (8K x 16) ISP, read-while-write |
| EEPROM | 512 B |
| SRAM | 1 KB |
| Supply Voltage Range | 2.7 V to 5.5 V |
| General Purpose I/O | 32 I/O lines |
| USART | 2 |
| ADC | 8-channel, 10-bit |
| Timers/Counters | 3, with compare modes and PWM |
| Serial Interfaces | TWI (I2C), SPI, 2x USART |
| Debug Interface | JTAG (boundary scan + on-chip debug) |
| Low Power Technology | picoPower |
| Package | 44-VQFN (7x7 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) |
| Packing | Tape & Reel (R suffix) |
ATMEGA164PV-10MUR 44-vqfn (7x7 mm) Pin Configuration Guide
Pin configuration for ATMEGA164PV-10MUR (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-10MUR.
Refer to the datasheet for full pin configuration.
Typical Applications
ATMEGA164PV-10MUR is suitable for 6 applications: Industrial Sensor Nodes, Battery-Powered Metering, HVAC and Building Automation Controllers, Appliance Control Boards, Access Control and Security Panels, Portable Instrumentation.
Industrial Sensor Nodes
The ATMEGA164PV-10MUR fits industrial sensor acquisition nodes because its 2.7V-5.5V supply range accepts both 3.3V and 5V rails, and its -40C to +85C industrial rating survives unconditioned factory environments. The 8-channel 10-bit ADC digitizes multiple analog sensors without an external converter, while 512B EEPROM stores calibration coefficients that survive power cycles. Two USARTs allow one channel for Modbus RTU field communication and another for a local display or debug. picoPower sleep modes cut average consumption in periodically-waking battery or energy-harvesting nodes; at a 10MHz clock, a single AVR core handles filtering and protocol tasks deterministically without an RTOS.
Recommended
Battery-Powered Metering
Utility and sub-metering products benefit from the ATMEGA164PV-10MUR's picoPower technology: deep sleep modes with the real-time counter running from a 32kHz crystal keep standby drain minimal between measurements, directly extending coin-cell or lithium-thionyl-chloride battery life. The 10-bit ADC samples current and voltage channels for energy calculation, and EEPROM retains billing registers through outages. Operation down to 2.7V lets the MCU run directly from a 3.6V Li-SOCl2 cell through most of its discharge curve, removing a regulator stage and its quiescent loss. The 16KB flash accommodates metrology firmware plus a UART-based communication stack for automatic meter reading.
Recommended
HVAC and Building Automation Controllers
Fan, damper, and zone controllers in HVAC equipment use the ATMEGA164PV-10MUR's three timer/counters with PWM to drive motor or heater control stages, while the 8-channel ADC reads thermistors and pressure sensors across multiple zones. The TWI (I2C) interface connects RTC and display peripherals, and two USARTs provide a BACnet/Modbus service port plus a room-unit link. The 2.7V-5.5V rating tolerates unregulated transformer-derived supplies after rectification, and industrial temperature qualification covers rooftop units. Read-while-write flash enables field firmware updates over the service UART without halting control loops, reducing truck rolls for installed-base maintenance.
Recommended
Appliance Control Boards
White-goods and small-appliance main control boards choose the ATmega164PV class for its cost-effective integration: one 44-VQFN chip provides the 10MHz core, 16KB flash for wash/dry state machines, two USARTs (one for the display board, one for service), and sufficient PWM channels for triac or motor drive timing. The internal RC oscillator removes the crystal cost in applications tolerant of Β±2% clock accuracy, and brown-out detection protects EEPROM contents during mains brownouts. JTAG boundary-scan supports production-board test. The -40C to +85C range covers unheated garage-installed appliances, and the QFN-44's exposed pad aids thermal dissipation in enclosed housings.
Recommended
Access Control and Security Panels
Door controllers and small alarm panels use the ATMEGA164PV-10MUR's 32 I/O lines to scan keypads and drive relays, while the two USARTs separate the reader bus from the host RS-485 link. 512B EEPROM stores credential tables and configuration that must persist across power loss, and the JTAG port supports secure production programming. picoPower modes keep the panel within standby budgets during quiescent periods, with pin-change interrupts waking the core on keypad or tamper events within microseconds. The 5.5V maximum supply allows direct operation from 5V backup-battery-backed rails common in security hardware, simplifying the power tree relative to 3.3V-only MCUs.
Recommended
Portable Instrumentation
Handheld test and measurement instruments leverage the ATMEGA164PV-10MUR's single-supply 2.7V operation, 10-bit ADC for measurement channels, and low sleep currents to meet multi-shift battery run-time targets. The 16KB flash holds acquisition routines, a character-LCD driver, and a serial logging stack; 1KB SRAM buffers sample windows. SPI connects fast external ADCs or SD-card storage when internal resolution is insufficient, and TWI adds an RTC for time-stamped logging. Deterministic single-cycle instruction execution keeps sampling loops jitter low without timers fighting an RTOS. Industrial temperature rating allows field calibration work in outdoor and plant-floor conditions from -40C to +85C.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA164PV-10MUR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA164PA-MUR | ATMEGA164P-20MUR | ATMEGA164A-MU | ATMEGA644PA-MUR | ATMEGA644PV-10MUR |
|---|---|---|---|---|---|---|
| Package | 44-VQFN (7x7 mm) | 44-VQFN (7x7 mm) - same | 44-VQFN (7x7 mm) - same | 44-VQFN (7x7 mm) - same | 44-VQFN (7x7 mm) - same | 44-VQFN (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Frequency | 10 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 10 MHz |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 64 KB | 64 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 2 KB | 2 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 4 KB | 4 KB |
| picoPower Low-Power Technology | Yes | Yes | Yes | No (standard ATmega164A) | Yes | Yes |
| Life Cycle Position | Active (prior generation) | Active - designated newer device | Active | Active | Active | Active (prior generation) |
Key Differentiators
- picoPower sleep technology (vs ATMEGA164A-MU)
- Wide-voltage 2.7V-5.5V grade at low unit cost (vs ATMEGA164P-20MUR)
- 16KB flash optimum cost per KB (vs ATMEGA644PA-MUR)
- Manufacturer-designated successor exists (vs ATMEGA164PA-MUR)
Design Notes
The ATMEGA164PV-10MUR accepts 2.7V-5.5V, but flash write operations (self-programming and EEPROM writes) have voltage-dependent timing; verify supply is stable and above 2.7V during EEPROM writes or use the BODEN fuse with a brown-out threshold of 2.7V to prevent corrupt data. When migrating to ATMEGA164PA-MUR, note the PA supports lower-voltage speed grades - re-check the fuse table rather than copying PV fuses. Decouple VCC/AVCC with 100nF per pin plus 10uF bulk near the exposed pad.
The 44-VQFN (7x7 mm) land pattern requires the center exposed pad soldered to a ground pour with an array of thermal vias - this pad is the primary ground and thermal path for the chip. Use no-clean flux carefully: QFN center-pad voiding causes intermittent ground faults that mimic software bugs. Follow IPC-7351 QFN44P50_700X700 land pattern guidance unless Microchip's reference layout is available. Keep the 16MHz-range crystal (if used below internal RC) within 10mm of XTAL1/XTAL2 with guard ground.
Migrating PV to PA silicon: Microchip documents electrical characteristic differences between the ATmega164PV and ATmega164PA revisions (e.g., BOD thresholds and sleep currents). Copying a PV project without reviewing the migration note and re-verifying fuses (CKDIV8, JTAGEN, BODLEVEL encoding) is a common cause of field failures. Also confirm the ISP programming clock is below CPU clock/4; a 10MHz PV programmed with leftover 20MHz settings will fail verification.
On the 44-QFN, PORTC pins double as the JTAG interface enabled by default (JTAGEN fuse programmed). If your application uses PC2-PC5 as GPIO, clear JTAGEN, or the pins stay under JTAG control and read floating. When JTAG debug is retained, add a 10k pull-down on TCK near the header and keep TDI/TDO traces short to avoid boundary-scan chain errors during production test.
Compliance Information
The part is described as GREEN in distributor listing text for the family, but explicit RoHS/REACH/lead-free declarations for ATMEGA164PV-10MUR were not present in the provided data and must be confirmed on the Microchip product page certificate.
