ATMEGA324PV-10AU
ATMEGA324PV-10AU - 8-bit AVR MCU, 32KB Flash, 10MHz, 44-TQFP | Microchip
The Microchip Technology ATMEGA324PV-10AU is a high-performance, low-power picoPower 8-bit AVR RISC-based microcontroller integrating 32KB of in-system programmable Flash with read-while-write capability, 1KB EEPROM, 2KB SRAM, 32 general-purpose I/O lines, and 32 general-purpose working registers. The device executes most instructions in a single clock cycle, achieving throughputs approaching 1 MIPS per MHz, with a maximum operating frequency of 10 MHz at a 1.8V to 5.5V supply range. It is housed in a 44-pin TQFP (10x10 mm) package with 0.80 mm pitch.
An 8-bit AVR microcontroller (MCU) is a single-chip computer built on a modified Harvard RISC architecture developed by Atmel (now Microchip). It combines a CPU core, non-volatile Flash program memory, SRAM data memory, EEPROM, and a rich set of peripherals including timers, ADC, USART, SPI, I2C/TWI, and GPIO on one die. The AVR family is widely used in hobbyist (Arduino), industrial control, sensor interface, and low-power embedded applications because of its deterministic instruction timing, simple C-friendly toolchain (AVR-GCC), and on-chip debug support.
The ATmega324PV specifically targets the picoPower family, with advanced power-saving features including six sleep modes (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby), a real-time counter running from an internal oscillator, and the ability to wake on external interrupts. Peripherals of engineering note include two USARTs, a byte-oriented TWI (I2C) interface, a master/slave SPI, an 8-channel 10-bit ADC with optional differential channels, three flexible timer/counters with compare and PWM modes, a programmable watchdog timer with separate on-chip oscillator, and an on-chip analog comparator.
Architecture-wise, the ATmega324PV uses a two-stage pipelined RISC core with 131 powerful instructions, hardware multiplier, and JTAG/OCD debug interface. The 10 MHz speed grade is the lower-power variant in the family, with the 20 MHz ATmega324P-20AU offering higher throughput at the cost of higher current consumption. The 'V' suffix denotes the picoPower process with extended voltage range down to 1.8V, ideal for battery-powered designs.
Typical applications include industrial sensor nodes, smart metering, battery-powered data loggers, home automation controllers, USB-to-UART bridges, and Arduino-compatible custom boards. For designs requiring higher computational headroom, the ATmega324P-20AU (20 MHz) or ATmega644P (64KB Flash) are drop-in compatible variants. For designs requiring an enhanced peripheral set, the ATmega324PB adds more USART, SPI and PWM channels in the same TQFP-44 footprint.
USD $4.30
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