| Flash (Kbytes) | 32 |
| EEPROM (Kbytes) | 1 |
| SRAM (Bytes) | 2048 |
| Max I/O Pins | 23 |
| F.max (MHz) | 20 |
| Vcc (V) | 1.8-5.5 |
| 10-bit A/D Channels | 8 |
| Analog Comparator | Yes |
| 16-bit Timers | 1 |
| 8-bit Timer | 2 |
| Brown Out Detector | Yes |
| Ext Interrupts | 26 |
| Hardware Multiplier | Yes |
| Interrupts | 26 |
| ISP | Yes |
| On Chip Oscillator | Yes |
| PWM Channels | 6 |
| RTC | Yes |
| Self Program Memory | Yes |
| SPI | 1+USART |
| TWI | Yes |
| UART | 1 |
| Watchdog | Yes |
| Pb-Free Packages | MLF (VQFN) 32 PDIP 28 TQFP 32 |
32K Byte self-programming Flash Program Memory, 1K Byte SRAM, 512 Bytes EEPROM, 8 Channel 10-bit A/D-converter(TQFP/MLF). debugWIRE On-chip Debug System. Up to 20 MIPS throughput at 20 MHz.
The ATmega48P/88P/168P/328P is a low-power CMOS 8-bit microcontroller based on the AVR
enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the
ATmega48P/88P/168P/328P achieves throughputs approaching 1 MIPS per MHz allowing the
system designer to optimize power consumption versus processing speed.
o High Performance, Low Power AVR(R) 8-Bit Microcontroller
o Advanced RISC Architecture
– 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 2-cycle Multiplier
o High Endurance Non-volatile Memory Segments
– 4/8/16/32K Bytes of In-System Self-Programmable Flash progam memory
(ATmega48P/88P/168P/328P)
– 256/512/512/1K Bytes EEPROM (ATmega48P/88P/168P/328P)
– 512/1K/1K/2K Bytes Internal SRAM (ATmega48P/88P/168P/328P)
– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
– Data retention: 20 years at 85°C/100 years at 25°C(1)
– Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
True Read-While-Write Operation
– Programming Lock for Software Security
o Peripheral Features
– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
– One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture
Mode
– Real Time Counter with Separate Oscillator
– Six PWM Channels
– 8-channel 10-bit ADC in TQFP and QFN/MLF package
Temperature Measurement
– 6-channel 10-bit ADC in PDIP Package
Temperature Measurement
– Programmable Serial USART
– Master/Slave SPI Serial Interface
– Byte-oriented 2-wire Serial Interface (Philips I2C compatible)
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Analog Comparator
– Interrupt and Wake-up on Pin Change
o Special Microcontroller Features
– Power-on Reset and Programmable Brown-out Detection
– Internal Calibrated Oscillator
– External and Internal Interrupt Sources
– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby,
and Extended Standby
o I/O and Packages
– 23 Programmable I/O Lines
– 28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF
o Operating Voltage:
– 1.8 - 5.5V for ATmega48P/88P/168PV
– 2.7 - 5.5V for ATmega48P/88P/168P
– 1.8 - 5.5V for ATmega328P
o Temperature Range:
– -40°C to 85°C
o Speed Grade:
– ATmega48P/88P/168PV: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V
– ATmega48P/88P/168P: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V
– ATmega328P: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V
o Low Power Consumption at 1 MHz, 1.8V, 25°C for ATmega48P/88P/168P:
– Active Mode: 0.3 mA
– Power-down Mode: 0.1 μA
– Power-save Mode: 0.8 μA (Including 32 kHz RTC)
| 速度 (MHz) | 所需电源 | 产品号 | 封装 | 工作范围 |
| 20 | 1.8 - 5.5V | ATmega328P-20AU ATmega328P-20MU ATmega328P-20PU |
32A 32M1-A 28P3 |
Industrial(-40°C － 85°C) |