ATMEGA48-20AU vs ATMEGA48PB-AUR Comparison
Detailed side-by-side comparison of ATMEGA48-20AU by Microchip Technology and ATMEGA48PB-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
ATMEGA48PB-AUR - 8-bit AVR MCU 20MHz 4KB Flash TQFP-32 | Microchip
ATMEGA48PB-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA48-20AU | ATMEGA48PB-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC (enhanced) | — |
| Program Memory (Flash) | 4 KB (2K x 16) | — |
| EEPROM | 256 B | 256 B |
| SRAM | 512 B | 512 B |
| Maximum CPU Frequency | 20 MHz | — |
| Throughput | Up to 20 MIPS | — |
| Supply Voltage (Vcc) | 4.5 V to 5.5 V | — |
| I/O Pins | 23 | — |
| ADC | 6-channel, 10-bit | — |
| Timer/Counters | 3 (2x 8-bit, 1x 16-bit) | — |
| Communication Interfaces | USART, SPI, TWI (I2C) | USART with wake-up on start of transmission |
| Package | 32-pin TQFP (7x7 mm, 0.8 mm pitch) | 32-TQFP (7x7 mm) |
| 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 | — |
| RoHS Status | Compliant | Compliant (GRN / green package per Mouser) |
| Core Processor | — | AVR |
| Core Size | — | 8-bit |
| Speed | — | 20 MHz |
| Flash Memory | — | 4 KB (2K x 16) |
| General-Purpose I/O | — | 27 |
| Operating Voltage Range | — | 1.8 V to 5.5 V |
| Timers/Counters | — | 3 flexible timer/counters with compare modes |
| Working Registers | — | 32 general-purpose registers |
| Performance | — | Up to 1 MIPS/MHz (single-cycle RISC) |
| Low-Power Technology | — | picoPower |
| Mounting Type | — | Surface Mount |
| Packaging | — | Tape & Reel (AUR suffix) |
| Functional Safety | — | FuSa capable (per DigiKey listing) |