ATMEGA48P-20AUR vs ATMEGA328P-AU Comparison

Detailed side-by-side comparison of ATMEGA48P-20AUR by Microchip Technology and ATMEGA328P-AU by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.

Microchip Technology
ATMEGA48P-20AUR ATMEGA48P-20AUR - 8-bit AVR MCU 4KB Flash 20MHz 32-TQFP | Microchip

ATMEGA48P-20AUR - 8-bit AVR MCU 4KB Flash 20MHz 32-TQFP | Microchip

ATMEGA48P-20AUR ✓ Active
Microchip Technology
ATMEGA328P-AU ATMEGA328P-AU - 8-bit AVR MCU 20MHz 32KB Flash TQFP-32 | Microchip

ATMEGA328P-AU - 8-bit AVR MCU 20MHz 32KB Flash TQFP-32 | Microchip

ATMEGA328P-AU ✓ Active

Specification Comparison

Parameter ATMEGA48P-20AUR ATMEGA328P-AU
Brand Microchip Technology Microchip Technology
Category Microcontrollers Microcontrollers
Lifecycle Status Active Active
Core Architecture 8-bit AVR RISC AVR 8-bit RISC
Maximum Clock Frequency 20 MHz —
Performance Up to 20 MIPS at 20 MHz —
Flash Memory 4 KB (2K x 16) 32 KB (16K x 16)
EEPROM 256 B 1 KB
SRAM 512 B 2 KB
Supply Voltage Range 4.5 V to 5.5 V —
General Purpose I/O 23 I/O lines —
Timers/Counters Three flexible timer/counters with compare modes —
ADC 10-bit, 6-channel 8-channel 10-bit
Serial Interfaces USART, SPI, 2-wire (I2C-compatible) USART, SPI, I2C (TWI)
Package 32-TQFP (7x7 mm) TQFP-32 (7x7 mm, 0.8 mm pitch)
Operating Temperature [DATA_NEEDED: operating temperature range] -40 C to +85 C
Life Cycle Stage ACTIVE —
Mounting Type Surface Mount Surface Mount
Programming In-System Programmable (ISP) Flash —
Power Technology picoPower low-power features with sleep modes —
CPU Speed — 20 MHz
Instruction Throughput — 20 MIPS
Operating Voltage — 1.8 V to 5.5 V
I/O Pins — 23
Timers — 2 x 8-bit, 1 x 16-bit
PWM Channels — 6
MSL Level — [DATA_NEEDED: MSL level]
RoHS Status — Compliant

Datasheets & Resources

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