ATMEGA48-20AU vs ATMEGA328P-AUR Comparison
Detailed side-by-side comparison of ATMEGA48-20AU by Microchip Technology and ATMEGA328P-AUR 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
ATMEGA48-20AU - 8-bit AVR MCU 20MHz 4KB Flash | Microchip
ATMEGA48-20AU ✓ ActiveMicrochip Technology
ATMEGA328P-AUR - 8-bit AVR MCU, 32KB Flash, 20MHz, TQFP-32 | Microchip
ATMEGA328P-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA48-20AU | ATMEGA328P-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.68 | $2.18 |
| Core Architecture | 8-bit AVR RISC (enhanced) | AVR 8-bit RISC |
| Program Memory (Flash) | 4 KB (2K x 16) | 32 KB |
| EEPROM | 256 B | 1 KB |
| SRAM | 512 B | 2 KB |
| Maximum CPU Frequency | 20 MHz | — |
| Throughput | Up to 20 MIPS | 20 MIPS at 20 MHz |
| Supply Voltage (Vcc) | 4.5 V to 5.5 V | — |
| I/O Pins | 23 | 23 programmable |
| ADC | 6-channel, 10-bit | 10-bit, up to 8 channels |
| Timer/Counters | 3 (2x 8-bit, 1x 16-bit) | — |
| Communication Interfaces | USART, SPI, TWI (I2C) | USART, SPI, I2C (TWI) |
| Package | 32-pin TQFP (7x7 mm, 0.8 mm pitch) | 32-pin TQFP, 7x7 mm, 0.8 mm pitch |
| Operating Temperature | -40C to +85C (industrial) | — |
| On-chip Debug | debugWIRE | — |
| In-System Programming | Yes (SPI) | — |
| Sleep Modes | 6 (Idle, ADC NR, Power-save, Power-down, Standby, Ext Standby) | — |
| Watchdog Timer | Programmable, with on-chip oscillator | Yes, with separate on-chip oscillator |
| RoHS Status | Compliant | Compliant |
| Maximum Clock Frequency | — | 20 MHz |
| Supply Voltage Range | — | 1.8 V to 5.5 V |
| Operating Temperature Range | — | -40 C to +85 C (Industrial) |
| PWM Channels | — | 6 |
| Timers | — | 2 x 8-bit, 1 x 16-bit |
| Mounting Type | — | Surface Mount |
| Instruction Set | — | 131 instructions, mostly single-cycle |
| Working Registers | — | 32 x 8-bit |
| Brown-out Detection | — | Yes |
| Power-Saving Modes | — | 6 software-selectable |
| MSL Level | — | 3 (168 hours) |