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Microchip Technology ATMEGA64RZAV-10MU
- Part No.:
- ATMEGA64RZAV-10MU
- Manufacturer:
- Microchip Technology
- Category:
- RF Transceiver ICs
- Package:
- 44-VFQFN Exposed Pad
- Datasheet:
-
ATMEGA64RZAV-10MU.pdf
- Description:
- IC RF TXRX+MCU 802.15.4 44VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:132
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Product details
Overview
ATMEGA64RZAV-10MU from Microchip Technology (formerly Atmel) is an 8-bit AVR RISC microcontroller designed for low-power embedded control. It integrates 64 KB ISP Flash, 4 KB SRAM, 2 KB EEPROM, a 10-bit 8-channel ADC with differential gain options (1x/10x/200x), three timer/counters (including one 16-bit with capture), and JTAG debug interface - enabling real-time motor control in battery-powered industrial sensors.
For engineers reviewing the ATMEGA64RZAV-10MU datasheet, ATMEGA64RZAV-10MU pinout, ATMEGA64RZAV-10MU application, or ATMEGA64RZAV-10MU equivalent, key selection criteria include its 10 MHz max operating frequency at 2.7–5.5 V, six sleep modes (including Power-down at 0.1 µA @ 1.8 V), and QFN44 package with exposed thermal pad requiring PCB grounding.
Technical Context
The ATMEGA64RZAV-10MU implements the enhanced AVR RISC architecture with 131 single-cycle instructions and 32 general-purpose registers directly connected to the ALU. Its instruction throughput reaches up to 10 MIPS at 10 MHz, supported by fully static operation and internal calibrated RC oscillator.
It features IEEE 1149.1-compliant JTAG for boundary-scan testing and on-chip debug, alongside true Read-While-Write Flash programming via SPI or bootloader. Peripheral integration includes two USARTs, TWI, SPI, programmable watchdog timer, analog comparator, and interrupt-on-pin-change capability across all I/O ports.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | AVR 8-bit RISC with 131 single-cycle instructions and 32 general-purpose registers |
| Max Operating Frequency | 10 MHz at 2.7–5.5 V supply - defines real-time response ceiling for time-critical ISR execution |
| Memory | 64 KB Flash (self-programmable), 4 KB SRAM, 2 KB EEPROM - supports field firmware updates and data logging without external storage |
| ADC | 10-bit, 8-channel with differential mode and selectable gain (1x/10x/200x) - enables precision sensor signal conditioning for thermocouples or strain gauges |
| Timers | Three independent timers: two 8-bit (T0/T2), one 16-bit (T1) with input capture - suitable for PWM motor control and pulse-width measurement |
| Power Modes | Six software-selectable sleep modes including Power-down (0.1 µA @ 1.8 V) - extends battery life in wireless sensor nodes |
| JTAG Interface | IEEE 1149.1 compliant with boundary-scan and full on-chip debug - enables non-intrusive hardware validation and flash programming |
Pinout & Package
ATMEGA64RZAV-10MU uses a 44-pad QFN/MLF package with 0.5 mm pitch and exposed thermal pad (GND). The pad must be soldered to PCB ground for mechanical stability and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PA0–PA7 | Analog Input / Digital I/O | ADC0–ADC7 inputs; also serve as 8-bit bi-directional port with internal pull-ups - used for analog sensor interfacing or digital control signals |
| PB0–PB7 | Digital I/O / Peripheral Functions | Support XCK0/T0, CLKO/T1, INT2/AIN0, OC0A/AIN1, SS/OC0B, MOSI, MISO, SCK - essential for SPI master/slave and timer-based PWM generation |
| PC0–PC7 | Digital I/O / JTAG Interface | Host TDI/TDO/TMS/TCK for JTAG debugging and programming; also support TWI (SCL/SDA) - enables in-system debug without dedicated debug header |
| PD0–PD7 | Digital I/O / USART / Timer Outputs | RXD0/TXD0, INT0/INT1, OC1B/OC1A, OC2B/ICP, OC2A - provides UART communication and high-resolution PWM outputs for motor drivers |
| RESET | Active-Low Reset Input | Minimum pulse width defined in datasheet; triggers power-on reset and brown-out detection - ensures deterministic startup after power recovery |
| XTAL1/XTAL2 | Crystal Oscillator Inputs | Support external crystal/resonator up to 10 MHz; internal RC oscillator available for clock source redundancy |
| AVCC/AREF | Analog Power / Reference Voltage | AVCC supplies ADC and Port A; AREF sets ADC reference - requires low-pass filtering when using external reference for noise-sensitive measurements |
Key Features
| Feature | Design Value |
|---|---|
| True Read-While-Write Flash | Enables background firmware update during active application execution - critical for fail-safe OTA updates in remote devices |
| Differential ADC with Programmable Gain | 10-bit resolution with 200x gain allows direct interface to low-output mV-range sensors (e.g., load cells) without external op-amps |
| Real-Time Counter (RTC) | Independent 32.768 kHz oscillator input supports accurate timekeeping and wake-up scheduling - reduces host CPU load in time-triggered systems |
| On-chip Analog Comparator | Compares AIN0/AIN1 with internal or external reference - enables zero-crossing detection or threshold-triggered interrupts without ADC overhead |
| Interrupt-on-Change for All I/O Pins | Each port supports pin-change interrupt masking per bit - simplifies keypad scanning and GPIO event handling with minimal firmware latency |
| Boot Code Section with Lock Bits | Separate flash section for bootloader with independent write protection - prevents accidental overwriting of boot code during application updates |
Applications
| Industrial Sensor Node | Smart Metering Interface |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity node transmitting data via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, RTC wake-up, SPI flash logging, and UART-to-LoRa module interface. Use Value: Power-down mode (0.1 µA) and RTC-triggered wake-up minimize average current, extending 2xAA battery life beyond 5 years. |
Use Scenario: Electricity meter with tamper detection, pulse counting, and secure data logging. IC Role / Device Role / Timing Role: System manager coordinating metrology IC interface (SPI), EEPROM data storage, and optical/IR communication port. Use Value: Differential ADC with 200x gain reads shunt voltage directly; JTAG enables post-deployment calibration verification. |
| Programmable Logic Controller (PLC) I/O Module | Motor Control Subsystem |
|
Use Scenario: DIN-rail mounted 8-channel digital input module with LED status and isolation. IC Role / Device Role / Timing Role: Isolated input conditioner, debounce logic, and RS-485 communication handler. Use Value: Six sleep modes allow dynamic power scaling; interrupt-on-change pins detect edge transitions without polling. |
Use Scenario: Brushless DC motor driver with hall-effect feedback and closed-loop speed control. IC Role / Device Role / Timing Role: PWM generator (OC1A/OC1B/OC2A), ADC for current sensing, and commutation logic executor. Use Value: 16-bit Timer1 with input capture synchronizes commutation timing to rotor position; 10-bit ADC resolves current ripple <1% FSR. |
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 | 40-pin PDIP package; identical core, memory, and peripheral specs; lacks QFN thermal pad and MLF footprint compatibility | Preferred for through-hole prototyping and legacy board reuse; not suitable for space-constrained or thermally demanding layouts | Select when manual assembly, breadboarding, or socket-based testing is required - no PCB redesign needed for functional validation. |
| ATMEGA644RFR2-ZUR | Integrated 2.4 GHz IEEE 802.15.4 transceiver; same AVR core but RF PHY replaces one USART; different power sequencing requirements | Used in Zigbee/Thread end-node designs where wireless connectivity is mandatory - eliminates external RF IC and associated layout complexity | Choose only when wireless mesh networking is required; incompatible with wired UART/SPI-only architectures due to pin and resource reassignment. |
Compared with ATMEGA644PV-10PU and ATMEGA644RFR2-ZUR, the ATMEGA64RZAV-10MU offers optimal thermal performance and compactness in QFN44 for industrial control, while retaining full peripheral compatibility without RF overhead or through-hole constraints.
Availability
ATMEGA64RZAV-10MU is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering interfaces, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ATMEGA64RZAV-10MU 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 acquired Atmel in 2016 and maintains full support for the AVR microcontroller portfolio, delivering high-reliability silicon for industrial, automotive, and consumer applications.
The ATMEGA64RZAV-10MU belongs to the ATmega644 family, engineered for cost-sensitive, low-power embedded control tasks requiring rich peripheral integration, robust debug capability, and field-upgradable firmware in space-constrained environments.
FAQ
What is the maximum operating frequency of the ATMEGA64RZAV-10MU?
The ATMEGA64RZAV-10MU is rated for up to 10 MHz operation across its full voltage range of 2.7–5.5 V. This speed grade is confirmed in the official datasheet's "Speed Grades" section and applies specifically to the -10MU suffix variant. Exceeding this frequency may result in timing violations or unstable operation, especially under temperature extremes or marginal supply conditions. The ATMEGA64RZAV-10MU achieves up to 10 MIPS throughput at this clock rate.
Does the ATMEGA64RZAV-10MU support in-system programming (ISP)?
Yes, the ATMEGA64RZAV-10MU supports In-System Programming via its SPI interface using the standard AVR ISP protocol. It also supports JTAG-based programming for Flash, EEPROM, fuses, and lock bits. The device includes a boot loader section with independent lock bits, enabling true Read-While-Write operation - allowing application code to run while updating firmware. This capability is integral to the ATMEGA64RZAV-10MU's design for field-upgradable embedded systems.
What are the key differences between ATMEGA64RZAV-10MU and ATMEGA644PV-10PU?
The ATMEGA64RZAV-10MU and ATMEGA644PV-10PU share identical core architecture, memory sizes (64 KB Flash, 4 KB SRAM, 2 KB EEPROM), peripherals, and electrical specifications. Their primary difference is packaging: ATMEGA64RZAV-10MU uses a 44-pad QFN/MLF with exposed thermal pad, while ATMEGA644PV-10PU uses a 40-pin PDIP. The QFN package enables better thermal dissipation and smaller PCB area, making the ATMEGA64RZAV-10MU preferable for compact, thermally demanding applications.
How does the ADC differential mode with programmable gain work on the ATMEGA64RZAV-10MU?
The ATMEGA64RZAV-10MU's 10-bit ADC supports differential input mode using AIN0 and AIN1 as inputs, with selectable gains of 1x, 10x, or 200x. This is configured via the ADMUX and ADCSRB registers. The 200x gain allows resolution of sub-millivolt signals - ideal for direct interface with low-output sensors like strain gauges or thermopiles. Gain selection is implemented entirely in hardware, eliminating need for external instrumentation amplifiers and reducing BOM cost and board space in the ATMEGA64RZAV-10MU-based design.
Is JTAG debugging supported on the ATMEGA64RZAV-10MU?
Yes, the ATMEGA64RZAV-10MU fully supports IEEE 1149.1-compliant JTAG interface for boundary-scan testing, on-chip debugging, and programming. Pins PC0–PC3 (TCK/TMS/TDO/TDI) implement the JTAG chain, enabling real-time register inspection, breakpoint setting, and flash/EEPROM programming without halting system operation. This JTAG capability is a standard feature across the ATMEGA64RZAV-10MU's pinout and is documented in the "Pin Descriptions" section of its datasheet.
ATMEGA64RZAV-10MU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 44-VFQFN Exposed Pad
- 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-VQFN (7x7)
ATMEGA64RZAV-10MU FAQ
1.How can I place an order for ATMEGA64RZAV-10MU through Aetrix?
Please submit a Request for Quotation (RFQ) for ATMEGA64RZAV-10MU 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-10MU reliable?
The price and inventory of ATMEGA64RZAV-10MU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATMEGA64RZAV-10MU is usually 5 days.
3.What payment methods are accepted for ATMEGA64RZAV-10MU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATMEGA64RZAV-10MU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATMEGA64RZAV-10MU?
ATMEGA64RZAV-10MU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATMEGA64RZAV-10MU 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-10MU?
For technical support, including ATMEGA64RZAV-10MU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATMEGA64RZAV-10MU requirements.
6.How does Aetrix verify that ATMEGA64RZAV-10MU is sourced from the original manufacturer or authorized distributors?
All ATMEGA64RZAV-10MU 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-10MU meets industry standards.
7.What is the process for return or replacement of ATMEGA64RZAV-10MU?
All ATMEGA64RZAV-10MU units undergo pre-shipment inspection (PSI). If there is an issue with ATMEGA64RZAV-10MU, 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-10MU part is unused and in its original packaging.
Return procedure for ATMEGA64RZAV-10MU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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