ATMEGA324PB-MU More Semiconductors - ICs by Microchip Technology

Status: Active
Series: ATmega324PB
RoHS: Compliant
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The high-performance Microchip 8-bit AVR® RISC-based picoPower® microcontroller combines 32 KB ISP Flash memory with read-while-write capabilities, 1 KB EEPROM, 2 KB SRAM, 39 general purpose I/O lines, 32 general purpose working registers, five flexible timer/counters with compare modes, internal and external interrupts, three USARTs with wake-up on start of transmission, two byte-oriented Two-Wire serial interface, two SPI serial ports, one 8-channel 10-bit ADC with optional differential input stage with programmable gain, programmable watchdog timer with internal oscillator, a JTAG (IEEE® 1149.1 compliant) test interface for on-chip debugging and programming, and six software selectable power saving modes. The device operates between 1.8-5.5 volts.

The ATmega324PB features the successful QTouch® Peripheral Touch Controller (PTC). The PTC acquires signals to detect touch on capacitive sensors and supports both self- and mutual-capacitance sensors. The ATmega324PB PTC is supported by the Microchip QTouch Composer development tool (QTouch Library project builder and QTouch Analyzer). It provides a faster and less complex capacitive touch implementation in any application.

The ATmega324PB supports 32 buttons in self-capacitance mode or up to 256 buttons in mutual-capacitance mode. Mix-and-match mutual-and self-capacitance sensors are possible. Only one pin is required per electrode, and no external components are required, delivering savings on the BOM cost compared to competing solutions.

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching one MIPS per MHz, balancing power consumption and processing speed.

Prices starting from US$1.57


Distributor Starting From Stock
Logo for Microchip Technology Microchip Technology US$1.57
15,189
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Logo for Newark Electronics Newark Electronics US$1.86
1,043
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Logo for element14 element14 US$1.90
1,043
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Logo for Future Electronics Future Electronics US$1.90
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Logo for Avnet America Avnet America US$2.16
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Features

131 Powerful Instructions
Most Single Clock Cycle Execution
32 x 8 General Purpose Working Registers
Fully Static Operation
Up to 20 MIPS Throughput at 20 MHz
On-Chip Two-Cycle Multiplier
32 KB of In-System Self-Programmable Flash program memory
1 KB EEPROM
2 KB Internal SRAM
Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
Data retention: 20 years at 85°C
In-System Programming by On-chip Boot Program
True Read-While-Write Operation
Programming Lock for Software Security
Capacitive Touch Buttons, Sliders and Wheels
24 Self-Cap Channels and 144 Mutual Cap Channels
Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
Three 16-bit Timer/Counters with Separate Prescaler, Compare Mode, and Capture Mode
Real Time Counter with Separate Oscillator
Ten PWM Channels
8-channel 10-bit ADC in TQFP and QFN/MLF package
ThreeProgrammable Serial USARTs
Two Master/Slave SPI Serial Interfaces
Two Byte-Oriented Two-Wire Serial Interfaces (Philips I2C Compatible)
Programmable Watchdog Timer with Separate On-chip Oscillator
On-Chip Analog Comparator
Interrupt and Wake-Up on Pin Change
Power-On Reset and Programmable Brown-Out Detection
Internal 8 MHz Calibrated Oscillator
External and Internal Interrupt Sources
Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby
Clock Failure Detection Mechanism and Switch to Internal 8 MHz RC Oscillator in case of Failure
Individual Serial Number to Represent a Unique ID
39 Programmable I/O Lines
44-pin TQFP and 44-pin QFN/MLF
1.8-5.5V
-40°C to 105°C
0-4 MHz @ 1.8 - 5.5V
0-10 MHz @ 2.7 - 5.5.V
0-20 MHz @ 4.5 - 5.5V
Active Mode: 0.24 mA
Power-Down Mode: 0.2 µA
Power-Save Mode: 1.3 µA (Including 32 kHz RTC)

Specifications

Program Memory Type Flash
Program Memory Size (KB) 32
CPU Speed (MIPS/DMIPS) 20
Data EEPROM (bytes) 1024
Capture/Compare/PWM (CCP) 3
Max 8 Bit Digital Timers 2
Number of ADCs 0
ADC Channels 8
Max ADC Resolution (bits) 10
Number of Comparators 1
Temp. Range Min. -40
Temp. Range Max. 105
Operation Voltage Max.(V) 5.5
Operation Voltage Min.(V) 1.8
Pin Count 44
Low Power Yes
Pins | Packaging 44 | VQFN
Temp Range -40C to +85C
Packing Media Tray (360)

Resources


Application Notes
AN_2585 - AVR151: Setup and use of the SPI on tinyAVR and megaAVR devices
AN_8456 - AVR127: Understanding ADC parameters
AN_1497 - AVR035: Efficient C Coding for 8-bit AVR microcontrollers
AN_1619 - AVR040: EMC Design Considerations
AN_1493 - AVR072: Accessing 16-bit I/O Registers
AN_8468 - AVR1200: Using External Interrupts for megaAVR Devices
AN_2566 - AVR465: Single-Phase Power/Energy Meter with Tamper Detection
AN_2563 - AVR054: Run-time calibration of the internal RC oscillator via the UART
AN_2505 - AVR130: Using the timers on tinyAVR and megaAVR devices
AN_42769 - AVR42769: Differences Between ATmega324 and ATmega324PB
AN_8103 - AVR340: Direct Driving of LCD Using General Purpose IO using tinyAVR and megaAVR devices
AN_7760 - AVR181: Automotive Grade0 - PCB and Assembly Recommendations
Low-Power Touch Design
AN_2508 - AVR182: Zero Cross Detector
AN_1143 - AVR236: CRC check of Program Memory on tinyAVR and megaAVR devices with LPM instruction
AN_1232 - AVR240: 4x4 Keypad-Wake Up on Keypress on tinyAVR and megaAVR devices
AN_8020 - AVR136: Low-jitter Multi-channel Software PWM
AN_8017 - AVR446: Linear speed control of stepper motor on tinyAVR and megaAVR devices
AN3320 - AVR318: Dallas 1-Wire Master on tinyAVR and megaAVR
AN2665 - Interfacing AVR Microcontrollers with Serial memories
AN_8002 - AVR055: Using a 32kHz XTAL for run-time calibration of the internal RC
AN_8016 - AVR323: Interfacing GSM Modems
AN_0932 - AVR100: Accessing the EEPROM on tinyAVR and megaAVR devices
AN_8053 - AVR351: Runtime calibration and compensation of RC oscillators
AN_2568 - AVR911: AVR Open-source Programmer
AN_2577 - AVR317: Using the USART on the ATmega48/88/168 as a SPI master
AN_2558 - AVR221: Discrete PID Controller on tinyAVR and megaAVR Devices
AN_1644 - AVR109: Using Self Programming on tinyAVR and megaAVR devices
AN_0934 - AVR128: Setup and Use of the AVR Analog Comparator
AN_1259 - AVR134: Real Time Clock (RTC) Using the Asynchronous Timer
AN_1631 - AVR201: Using the 8-bit AVR Hardware Multiplier
AN_42055 - AT1886: Mixing Assembly and C with AVRGCC
AN_1981 - AVR155: Accessing an I2C LCD Display using the AVR 2-Wire Serial Interface
AN_2557 - AVR303: SPI-UART Gateway on tinyAVR and megaAVR devices
AN2462 - AVR231: AES Bootloader
AN_1231 - AVR242: Multiplexing LED Drive & a 4x4 Keypad on tinyAVR and megaAVR devices
AN_2569 - AVR241: Direct driving of LCD display using general I/O on tinyAVR and megaAVR devices
AN_2555 - AVR053: Calibration of the internal RC oscillator
AN_1451 - AVR306: Using the AVR UART in C on tinyAVR and megaAVR devices
AN2519 - AVR Microcontroller Hardware Design Considerations
AN_2540 - AVR104: Buffered Interrupt Controlled EEPROM Writes
AN_2546 - AVR105: Power efficient high endurance parameter storage in tinyAVR and megaAVR devices Flash memory
AN_8003 - AVR121: Enhancing ADC resolution by oversampling
AN_8014 - AVR135: Using Timer Capture to Measure PWM Duty Cycle on tinyAVR and megaAVR devices
AN_2583 - AVR316: SMBus Slave Using the TWI Module on tinyAVR and megaAVR devices
AN_8091 - AVR341: Four and five-wire Touch screen Controller using tinyAVR and megaAVR devices
AN_1472 - AVR350: Xmodem CRC Receive Utility for AVR
AN_8108 - AVR122: Calibration of the AVR`s Internal Temperature Reference
AN_8128 - AVR186: Best practices for the PCB layout of Oscillators
AN_0943 - AVR910: In-System Programming
AN_1015 - AVR604: Understanding the AVR ICEPRO I/O Registers
AN_1268 - AVR133: Long Delay Generation Using the AVR Microcontroller
AN_7653 - AVR140: ATmega48/88/168 family run-time calibration of the Internal RC oscillator
AN_2551 - AVR132: Using the Enhanced Watchdog Timer
AN_2559 - AVR120: Characterization and Calibration of the ADC on an AVR
AN_2565 - AVR311: Using the TWI module as I2C slave on tinyAVR and megaAVR devices
AN2480 - AVR315: Using the TWI Module as I2C Master
AN_2575 - AVR106: C Functions for Reading and Writing to Flash Memory
AN_8453 - AVR4027: Tips and Tricks to Optimize Your C Code for 8-bit AVR Microcontrollers
AN_7546 - AVR495: AC Induction Motor Control Using the Constant V/f Principle and a Space-vector PWM Algorithm
AN2538 - AVR126: ADC of megaAVR in Single-Ended Mode
AN_8365 - AVR205: Frequency measurement made easy with tinyAVR and megaAVR
AN_32194 - AVR116: Wear Leveling on DataFlash
AN_8184 - AVR232: Authentication Using SHA-256
AN_2532 - AVR243: Matrix Keyboard Decoder on tinyAVR and megaAVR devices
AN2648 - Selecting and Testing 32 KHz Crystal Oscillators for AVR Microcontrollers
AN_8349 - AVR4013: picoPower Basics
AN2468 - Production Programming of Microchip AVR and SAM Microcontrollers
AN_42787 - AVR42787: AVR Software User Guide
AN_42785 - AVR42785: I/O Multiplexing Introduction with ATmega328PB
AN_2527 - AVR223: Digital Filters on tinyAVR and megaAVR devices
AN_2526 - AVR101: High Endurance EEPROM Storage
AN_42783 - AVR42783: Using USART to Wake Up ATmega328PB from Sleep Mode
AN_42784 - AVR284: Software Library for AES-128 Encryption and Decryption on megaAVR
AN2447 - Measure VCC/Battery Voltage Without Using I/O Pin on tinyAVR and megaAVR
AN2466 - Using Atmel-ICE for AVR Programming In Mass Production

Board Design Files
ATmega324PB IBIS Model



Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.1379
Shipping Weight (kg) 0.627778
Lead Count 44
Package Type VQFN
Package Width or Size 7x7x1mm
Soldering Composition Matte Tin

Alternative Descriptions

20MHZ, QFN/MFL, IND TEMP, GREEN 5 V | Microchip Technology
Mcu, 8Bit, Avr, 20Mhz, Tqfp-44 | Newark Electronics
MCU, 8BIT, AVR, 20MHZ, TQFP-44 | element14
ATmega Series 32 KB Flash 2 KB SRAM 20 MHz 8-Bit Microcontroller - VQFN-44 | Future Electronics
MCU 8-Bit ATMEGA324PB AVR RISC 32KB Flash 1.8V to 5.5V 44-Pin VQFN Tray | Avnet America


Frequently Asked Questions

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Is the ATMEGA324PB-MU RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

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