Microchip ATMEGA328-AU, 8bit AVR Microcontroller, ATmega, 20MHz, 32 kB Flash, 32-Pin TQFP
- RS Stock No.:
- 738-0432
- Mfr. Part No.:
- ATMEGA328-AU
- Brand:
- Microchip
Discontinued product
- RS Stock No.:
- 738-0432
- Mfr. Part No.:
- ATMEGA328-AU
- Brand:
- Microchip
ATmega328 8-Bit megaAVR Microcontrollers
The Atmel ATmega328 Microcontroller is an 8-bit megaAVR device based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle the ATmega328 achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and speed.
Microcontroller Features
20 MHz Max. Operating Frequency
Up to 20 MIPS at 20 MHz
32 KB Flash
1024 B EEPROM
2 KB SRAM
131 Instructions – Most single clock cycle execution
32 General Purpose Registers
23 GPIO
Power-on Reset and Programmable Brown-out Detection
Internal Calibrated Oscillator
External and Internal Interrupt Sources
Five Power-Saving Sleep Modes
Internal and External Interrupts
Fully Static Operation
Up to 20 MIPS at 20 MHz
32 KB Flash
1024 B EEPROM
2 KB SRAM
131 Instructions – Most single clock cycle execution
32 General Purpose Registers
23 GPIO
Power-on Reset and Programmable Brown-out Detection
Internal Calibrated Oscillator
External and Internal Interrupt Sources
Five Power-Saving Sleep Modes
Internal and External Interrupts
Fully Static Operation
Peripheral Features
10-bit 15 ksps Analogue-to-Digital Converter (ADC) – 8 or 6 channels
Capacitive Touch Sense – 16 channels
Temperature Sensor
Two 8-bit Timers
One 16-bit Timer
Output Compare Module – 6 channels
Six PWM Channels
Programmable Serial USART
Master/Slave SPI Serial Interface
Byte-oriented 2-wire Serial Interface – I2C compatible
Programmable Watchdog Timer with Separate Oscillator
Analogue Comparator
Interrupt and Wake-up on Pin Change
Capacitive Touch Sense – 16 channels
Temperature Sensor
Two 8-bit Timers
One 16-bit Timer
Output Compare Module – 6 channels
Six PWM Channels
Programmable Serial USART
Master/Slave SPI Serial Interface
Byte-oriented 2-wire Serial Interface – I2C compatible
Programmable Watchdog Timer with Separate Oscillator
Analogue Comparator
Interrupt and Wake-up on Pin Change
Attribute | Value |
|---|---|
| Family Name | ATmega |
| Package Type | TQFP |
| Mounting Type | Surface Mount |
| Pin Count | 32 |
| Device Core | AVR |
| Data Bus Width | 8bit |
| Program Memory Size | 32 kB |
| Maximum Frequency | 20MHz |
| RAM Size | 1 kB, 2 kB |
| Number of PWM Units | 1 |
| Number of SPI Channels | 1 |
| Number of CAN Channels | 0 |
| Number of I2C Channels | 1 |
| Number of UART Channels | 0 |
| Number of USART Channels | 1 |
| Typical Operating Supply Voltage | 1.8 → 5.5 V |
| Dimensions | 7.1 x 7.1 x 1.2mm |
| Number of LIN Channels | 0 |
| Height | 1.2mm |
| Minimum Operating Temperature | -40 °C |
| Maximum Number of Ethernet Channels | 0 |
| Number of PCI Channels | 0 |
| Instruction Set Architecture | RISC |
| Pulse Width Modulation | 1(6 Channel) |
| Width | 7.1mm |
| ADCs | 8 x 10 bit |
| Priced to Clear | Yes |
| Length | 7.1mm |
| Maximum Operating Temperature | +85 °C |
| Number of ADC Units | 1 |
| Number of Ethernet Channels | 0 |
| Program Memory Type | Flash |