IC MCU 8BIT 32KB FLASH 44VQFN
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ATMEGA324PB-MN Competitive Prices
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The high-performance Microchip picoPower 8-bit AVR RISC-basedmicrocontroller combines 32kB ISP flash memory with read-while-writecapabilities, 1kB EEPROM, 2kB SRAM, 39 general purpose I/O lines, 32general purpose working registers, five flexible timer/counters withcompare modes, internal and external interrupts, three USARTs withwake-up on start of transmission, two byte-oriented 2-wire serialinterface, two SPI serial ports, one 8-channel 10-bit ADC with optionaldifferential input stage with programmable gain, programmable watchdogtimer with internal oscillator, a JTAG (IEEE 1149.1 compliant) testinterface for on-chip debugging and programming, and six softwareselectable power saving modes. The device operates between 1.8-5.5volts.
The ATmega324PB features the successful QTouch PeripheralTouch Controller (PTC). The PTC acquires signals in order to detecttouch on capacitive sensors, and supports both self- andmutual-capacitance sensors. The ATmega324PB PTC is supported by theMicrochip QTouch Composer development tool (QTouch Library projectbuilder and QTouch Analyzer). It provides a faster and less complexcapacitive touch implementation in any application.
It supports 32buttons in self-capacitance mode, or up to 256 buttons inmutual-capacitance mode. Mix-and-match mutual-and self-capacitancesensors is possible, and only one pin is required per electrode ??? noexternal components are required, giving savings on the BOM costcompared to competing solutions.
By executing powerfulinstructions in a single clock cycle, the device achieves throughputsapproaching 1 MIPS per MHz, balancing power consumption and processingspeed.
Core Processor AVR
Speed 20MHz
Operating Temperature -40℃ ~ 105℃ (TA)
Program Memory Type FLASH
RAM Size 2K x 8
Number of I/O 39
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Mounting Type Surface Mount
Oscillator Type Internal
Supplier Device Package 44-VQFN (7x7)
EEPROM Size 1K x 8
Package / Case 44-VFQFN Exposed Pad
Core Size 8-Bit
Connectivity I2C, SPI, UART/USART
Program Memory Size 32KB (16K x 16)
Data Converters A/D 8x10b
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Manufacturer: STMicroelectronics
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