ATMEGA328P-AU vs ATMEGA168A-AU Comparison
Detailed side-by-side comparison of ATMEGA328P-AU by Microchip Technology and ATMEGA168A-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
ATMEGA328P-AU - 8-bit AVR MCU 20MHz 32KB Flash TQFP-32 | Microchip
ATMEGA328P-AU ✓ ActiveMicrochip Technology
ATMEGA168A-AU - 8-Bit AVR MCU 16KB Flash 20MHz | Microchip
ATMEGA168A-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328P-AU | ATMEGA168A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.74 | $1.42 |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| CPU Speed | 20 MHz | — |
| Instruction Throughput | 20 MIPS | — |
| Flash Memory | 32 KB (16K x 16) | — |
| SRAM | 2 KB | — |
| EEPROM | 1 KB | — |
| Operating Voltage | 1.8 V to 5.5 V | — |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C |
| I/O Pins | 23 | — |
| Timers | 2 x 8-bit, 1 x 16-bit | — |
| PWM Channels | 6 | — |
| ADC | 8-channel 10-bit | — |
| Serial Interfaces | USART, SPI, I2C (TWI) | USART, SPI, Two-Wire (I2C) |
| Package | TQFP-32 (7x7 mm, 0.8 mm pitch) | 32-TQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | [DATA_NEEDED: MSL level] | — |
| RoHS Status | Compliant | Compliant |
| Program Memory Size | — | 16 KB (8K x 16) Flash |
| Program Memory Type | — | Flash (ISP, read-while-write) |
| EEPROM Size | — | 512 B |
| SRAM Size | — | 1 KB |
| Maximum Clock Frequency | — | 20 MHz |
| Operating Voltage Range | — | 2.7 V to 5.5 V |
| Number of I/O Lines | — | 23 |
| General Purpose Registers | — | 32 |
| Instruction Set | — | 131 instructions, most single-cycle |
| Timers/Counters | — | 3 (two 8-bit, one 16-bit) with compare modes |
| ADC Resolution | — | 10-bit |
| Supply Current (Active) | — | [DATA_NEEDED: active supply current] |
| Sleep Modes | — | 6 (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby) |
| Lifecycle Stage | — | Active |