ATMEGA168A-AU vs ATMEGA168-20AI Comparison
Detailed side-by-side comparison of ATMEGA168A-AU by Microchip Technology and ATMEGA168-20AI 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
ATMEGA168A-AU
ATMEGA168A-AU - 8-Bit AVR MCU 16KB Flash 20MHz | Microchip
ATMEGA168A-AU β ActiveMicrochip Technology
ATMEGA168-20AI
ATMEGA168-20AI - 8-bit AVR MCU 20MHz 16KB Flash | Microchip
ATMEGA168-20AI β ActiveSpecification Comparison
| Parameter | ATMEGA168A-AU | ATMEGA168-20AI |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.42 | $1.85 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Program Memory Size | 16 KB (8K x 16) Flash | β |
| Program Memory Type | Flash (ISP, read-while-write) | β |
| EEPROM Size | 512 B | β |
| SRAM Size | 1 KB | β |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Operating Voltage Range | 2.7 V to 5.5 V | β |
| Number of I/O Lines | 23 | β |
| General Purpose Registers | 32 | β |
| Instruction Set | 131 instructions, most single-cycle | β |
| Timers/Counters | 3 (two 8-bit, one 16-bit) with compare modes | 2 x 8-bit, 1 x 16-bit |
| Serial Interfaces | USART, SPI, Two-Wire (I2C) | β |
| ADC Resolution | 10-bit | 10-bit |
| Package | 32-TQFP (7x7 mm) | 32-TQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40 C to +85 C | -40C to +85C (industrial) |
| Supply Current (Active) | [DATA_NEEDED: active supply current] | β |
| Sleep Modes | 6 (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby) | β |
| RoHS Status | Compliant | β |
| Lifecycle Stage | Active | β |
| Flash Memory | β | 16 KB (8K x 16) |
| SRAM | β | 1 KB |
| EEPROM | β | 512 B |
| Supply Voltage Range | β | 2.7 V to 5.5 V |
| I/O Lines | β | 23 |
| ADC Channels | β | 8 |
| Communication Interfaces | β | USART, SPI, 2-wire (I2C-compatible) |
| Throughput | β | Up to 20 MIPS at 20 MHz |
| Instructions | β | 131 instructions, most single-cycle |
| On-chip Debug | β | debugWIRE |
| Programming | β | ISP (In-System Programming), self-programming Flash |