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Microchip Technology ATMEGA64RZAV-10AU
- Part No.:
- ATMEGA64RZAV-10AU
- Manufacturer:
- Microchip Technology
- Category:
- RF Transceiver ICs
- Package:
- 44-TQFP
- Datasheet:
-
ATMEGA64RZAV-10AU.pdf
- Description:
- IC RF TXRX+MCU 802.15.4 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:114
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Product details
Overview
ATMEGA64RZAV-10AU from Microchip Technology (formerly Atmel) is a low-power 8-bit AVR RISC microcontroller with 64 KB in-system programmable Flash, 4 KB SRAM, 2 KB EEPROM, 32 I/O lines, and integrated peripherals including dual USARTs, 8-channel 10-bit ADC, three timer/counters (two 8-bit, one 16-bit), six PWM channels, JTAG debug interface, and six sleep modes. It operates up to 10 MHz at 2.7–5.5 V and targets embedded control in industrial sensors, motor drives, and smart home nodes.
For engineers reviewing the ATMEGA64RZAV-10AU datasheet, ATMEGA64RZAV-10AU pinout, ATMEGA64RZAV-10AU application, or ATMEGA64RZAV-10AU equivalent, key selection considerations include its 44-pin TQFP package, 10 MHz speed grade, internal calibrated RC oscillator, true read-while-write Flash, and JTAG-based on-chip debugging support for rapid firmware iteration.
Technical Context
The ATMEGA64RZAV-10AU implements an enhanced Harvard architecture with 32 general-purpose registers directly connected to the ALU, enabling single-cycle instruction execution for 131 instructions. Its core supports 20 MIPS throughput at 20 MHz but is rated for 10 MHz operation under 2.7–5.5 V supply - matching the '-10' speed suffix.
Peripheral integration includes a 16-bit Timer/Counter1 with input capture, two 8-bit timers (T/C0 and T/C2), Real Time Counter with separate oscillator, byte-oriented Two-wire Interface (I²C-compatible), SPI master/slave, and programmable watchdog timer with independent RC oscillator - all accessible via memory-mapped I/O registers and configurable through dedicated control bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | AVR 8-bit RISC with 32 general-purpose registers and single-cycle ALU execution |
| Max Operating Frequency | 10 MHz at 2.7–5.5 V - defines maximum instruction throughput and peripheral clocking limits |
| Flash Memory | 64 KB In-System Self-Programmable Flash with Read-While-Write capability for seamless firmware updates |
| SRAM / EEPROM | 4 KB internal SRAM for runtime variables; 2 KB EEPROM with 100,000 write/erase cycles for nonvolatile configuration storage |
| Analog-to-Digital Converter | 8-channel, 10-bit successive-approximation ADC with differential mode and selectable gain (1x/10x/200x) for precision sensor interfacing |
| Timer/Counter Resources | Three independent timers: two 8-bit (T/C0, T/C2) and one 16-bit (T/C1) with compare, capture, and PWM output capabilities |
| Debug & Programming Interface | IEEE 1149.1-compliant JTAG interface supporting boundary-scan, on-chip debug, and full memory/fuse programming |
Pinout & Package
ATMEGA64RZAV-10AU is housed in a 44-lead Thin Quad Flat Package (TQFP) with 0.8 mm lead pitch and exposed thermal pad (soldered to ground). Pin functions are fully defined across four 8-bit bidirectional I/O ports (PA–PD), plus dedicated signals for reset, crystal oscillator (XTAL1/XTAL2), power (VCC/GND/AVCC/AREF), and JTAG (TCK/TMS/TDO/TDI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PA0–PA7 | Analog Input / Digital I/O | Port A pins serve as ADC input channels (ADC0–ADC7) and general-purpose bi-directional I/O with internal pull-ups |
| PB0–PB7 | Digital I/O / Peripheral Signals | Support UART (XCK0/T0/T1), SPI (MOSI/MISO/SCK), and PWM (OC0A/OC0B) functions; all pins have symmetrical drive strength |
| PC0–PC7 | JTAG / Digital I/O | Double-function pins: SCL/SDA (TWI), TCK/TMS/TDO/TDI (JTAG), and general-purpose I/O with pull-up enable |
| PD0–PD7 | Digital I/O / UART / Timer Outputs | Provide RXD0/TXD0 (USART0), INT0/INT1, OC1A/OC1B, OC2A/OC2B/ICP, and PCINT24–PCINT31 for pin-change interrupts |
| RESET | Active-Low Reset Input | Asynchronous reset signal; low pulse > 1.5 µs (min.) forces hardware reset regardless of clock state |
| XTAL1 / XTAL2 | Crystal Oscillator Inputs | Connect external quartz crystal or ceramic resonator (1–10 MHz typical); internal oscillator circuit provides clock source |
| AVCC / AREF | Analog Power / Reference | AVCC supplies ADC and Port F; AREF sets ADC reference voltage - must be decoupled and stable for accurate conversions |
Key Features
| Feature | Design Value |
|---|---|
| True Read-While-Write Flash | Enables concurrent code execution and firmware update without halting system operation - critical for field-upgradable devices |
| Independent Boot Section | Separate lock bits protect boot loader code from accidental overwrite while allowing application section reprogramming |
| Six Software-Selectable Sleep Modes | Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby - reduce current draw from 240 µA to 0.1 µA at 1.8 V |
| Differential ADC with Programmable Gain | Supports high-resolution measurement of low-level analog signals (e.g., thermocouples, bridge sensors) without external amplification |
| JTAG Boundary-Scan & Debug | Provides full visibility into internal register states, real-time variable inspection, and non-intrusive breakpointing during development |
Applications
| Industrial Sensor Node | Smart Home Thermostat |
|---|---|
Use Scenario: Remote environmental monitoring using temperature, humidity, and CO₂ sensors with wireless telemetry. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, data preprocessing, UART-to-RF bridge, and low-power scheduling. Use Value: Integrated 10-bit ADC with differential gain eliminates external op-amps; 0.1 µA power-down mode extends battery life to multi-year intervals. | Use Scenario: Local HVAC control with display, keypad, and relay drivers in residential climate systems. IC Role / Device Role / Timing Role: System-on-chip managing user interface, PID loop timing, relay actuation, and communication with central hub. Use Value: Six PWM channels drive multiple LED indicators and fan speed control; built-in watchdog ensures fail-safe recovery from software hangs. |
| Motor Control Module | Embedded Data Logger |
Use Scenario: Brushless DC motor commutation and current sensing in small appliances or robotics. IC Role / Device Role / Timing Role: Real-time motion controller synchronizing 16-bit Timer1 capture events with Hall-effect feedback and generating complementary PWM outputs. Use Value: Input capture capability enables precise rotor position detection; OC1A/OC1B outputs support dead-time insertion for half-bridge gate driving. | Use Scenario: Standalone environmental logging with SD card interface, RTC timestamping, and periodic wake-up from deep sleep. IC Role / Device Role / Timing Role: Host processor handling FAT32 file writes, RTC timekeeping via asynchronous timer, and interrupt-driven sensor sampling. Use Value: Power-save mode maintains RTC operation while CPU sleeps; 2 KB EEPROM stores calibration constants and last-known state across resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATMEGA644PV-10PU | Same core, Flash, RAM, and peripherals; differs in package (40-pin PDIP vs. 44-pin TQFP) and max junction temperature (85°C vs. 105°C) | Preferred for through-hole prototyping or legacy board compatibility; lacks QFN option and has lower thermal rating | Select when manual soldering or socket-based testing is required; verify PCB footprint and thermal margin for continuous operation |
| ATMEGA64M1-AU | Integrated high-side/low-side MOSFET drivers; reduced Flash (64 KB) and no JTAG - replaced by debugWIRE; different pinout and peripheral mapping | Targeted specifically for 3-phase motor control; not drop-in compatible due to driver integration and missing JTAG | Choose only for new motor-driver designs requiring integrated gate driving; not suitable as direct replacement for general-purpose control |
Compared with ATMEGA644PV-10PU and ATMEGA64M1-AU, the ATMEGA64RZAV-10AU offers superior debug visibility via JTAG, broader package options including thermally enhanced TQFP, and guaranteed 105°C operation - making it optimal for compact, production-ready industrial controllers where debug access and thermal reliability are critical.
Availability
ATMEGA64RZAV-10AU is available at Aetrix Electronics and suitable for industrial automation, smart building controls, and embedded data acquisition systems requiring stable component supply, long-term manufacturability, and qualified automotive-grade temperature performance.
Supply support for ATMEGA64RZAV-10AU includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a global semiconductor company delivering microcontrollers, analog, FPGA, and connectivity solutions for industrial, automotive, consumer, and communications markets.
The ATMEGA64RZAV-10AU belongs to the AVR megaAVR® family, designed for cost-sensitive, low-power embedded control applications demanding high code efficiency, robust peripheral integration, and mature toolchain support.
FAQ
What is the maximum operating frequency of the ATMEGA64RZAV-10AU?
The ATMEGA64RZAV-10AU is rated for operation up to 10 MHz across its specified voltage range of 2.7–5.5 V. This speed grade is indicated by the "-10" suffix in the part number and is validated per the device's electrical characteristics table. While the underlying AVR core can achieve 20 MIPS at 20 MHz, the ATMEGA64RZAV-10AU's internal timing margins and qualification ensure reliable 10 MHz operation under worst-case conditions including temperature and voltage variation.
Does the ATMEGA64RZAV-10AU support in-system programming (ISP)?
Yes, the ATMEGA64RZAV-10AU supports in-system programming via its SPI interface, enabling field firmware updates without removing the device from the PCB. It also supports programming and debugging through the IEEE 1149.1-compliant JTAG interface, which allows full memory access, fuse configuration, and on-chip debug functionality - all without requiring a bootloader.
What sleep modes are available on the ATMEGA64RZAV-10AU and how do they differ?
The ATMEGA64RZAV-10AU offers six software-selectable sleep modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby. Each disables progressively more circuitry to minimize current draw - from 240 µA in Active mode down to 0.1 µA in Power-down mode at 1.8 V. Standby mode keeps the crystal oscillator running for fast wake-up, while Power-save preserves asynchronous timer operation for RTC functionality.
Can the ATMEGA64RZAV-10AU's ADC perform differential measurements with programmable gain?
Yes, the ATMEGA64RZAV-10AU's 10-bit ADC supports differential input mode with selectable gains of 1x, 10x, or 200x - implemented using internal programmable gain amplifier (PGA) stages. This allows high-resolution measurement of small differential signals (e.g., from load cells or thermopiles) without external amplification, reducing BOM cost and board space.
Is the ATMEGA64RZAV-10AU pin-compatible with other ATmega64 variants like the ATMEGA644PV?
No, the ATMEGA64RZAV-10AU is not pin-compatible with the ATMEGA644PV-10PU. Although both share identical core functionality and peripheral sets, the ATMEGA64RZAV-10AU uses a 44-pin TQFP package with JTAG pins mapped to Port C, whereas the ATMEGA644PV-10PU uses a 40-pin PDIP package and repurposes those pins for general I/O. Physical layout and signal routing must be redesigned for interchangeability.
ATMEGA64RZAV-10AU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 44-TQFP
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- 802.15.4
- Protocol:
- 6LoWPAN, Zigbee®
- Modulation:
- O-QPSK
- Frequency:
- 2.4GHz
- Data Rate (Max):
- 250kbps
- Power - Output:
- 3dBm
- Sensitivity:
- -101dBm
- Memory Size:
- 64kB Flash, 2kB EEPROM, 4kB SRAM
- Serial Interfaces:
- JTAG, SPI, USART
- GPIO:
- 32
- Voltage - Supply:
- 1.8V ~ 3.6V
- Current - Receiving:
- 15.5mA
- Current - Transmitting:
- 9.5mA ~ 16.5mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 44-TQFP (10x10)
ATMEGA64RZAV-10AU FAQ
1.How can I place an order for ATMEGA64RZAV-10AU through Aetrix?
Please submit a Request for Quotation (RFQ) for ATMEGA64RZAV-10AU on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ATMEGA64RZAV-10AU reliable?
The price and inventory of ATMEGA64RZAV-10AU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATMEGA64RZAV-10AU is usually 5 days.
3.What payment methods are accepted for ATMEGA64RZAV-10AU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATMEGA64RZAV-10AU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATMEGA64RZAV-10AU?
ATMEGA64RZAV-10AU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATMEGA64RZAV-10AU order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ATMEGA64RZAV-10AU?
For technical support, including ATMEGA64RZAV-10AU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATMEGA64RZAV-10AU requirements.
6.How does Aetrix verify that ATMEGA64RZAV-10AU is sourced from the original manufacturer or authorized distributors?
All ATMEGA64RZAV-10AU products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ATMEGA64RZAV-10AU meets industry standards.
7.What is the process for return or replacement of ATMEGA64RZAV-10AU?
All ATMEGA64RZAV-10AU units undergo pre-shipment inspection (PSI). If there is an issue with ATMEGA64RZAV-10AU, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ATMEGA64RZAV-10AU part is unused and in its original packaging.
Return procedure for ATMEGA64RZAV-10AU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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