ATMEGA48-20AU vs ATMEGA168-20AU Comparison
Detailed side-by-side comparison of ATMEGA48-20AU by Microchip Technology and ATMEGA168-20AU 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
ATMEGA168-20AU - 8-Bit AVR MCU 16KB Flash 20MHz | Microchip
ATMEGA168-20AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA48-20AU | ATMEGA168-20AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC (enhanced) | 8-bit AVR RISC |
| Program Memory (Flash) | 4 KB (2K x 16) | — |
| EEPROM | 256 B | 512 B |
| SRAM | 512 B | 1 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 | — |
| ADC | 6-channel, 10-bit | 8-channel, 10-bit successive approximation |
| Timer/Counters | 3 (2x 8-bit, 1x 16-bit) | — |
| Communication Interfaces | USART, SPI, TWI (I2C) | — |
| Package | 32-pin TQFP (7x7 mm, 0.8 mm pitch) | 32-TQFP (7x7 mm) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C |
| 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 |
| Program Memory | — | 16 KB In-System Programmable Flash |
| Maximum Clock Frequency | — | 20 MHz |
| Supply Voltage Range | — | 2.7 V to 5.5 V |
| General Purpose I/O Lines | — | 23 |
| General Purpose Working Registers | — | 32 x 8-bit |
| Timers | — | 2 x 8-bit, 1 x 16-bit with PWM |
| Serial Interfaces | — | USART, SPI, TWI (I2C) |
| On-Chip Debug | — | debugWIRE |
| Mounting Type | — | Surface Mount |
| Instruction Set | — | 131 powerful instructions, most single clock cycle |