ATMEGA328P-MMH vs ATMEGA168A-MMHR Comparison
Detailed side-by-side comparison of ATMEGA328P-MMH by Microchip Technology and ATMEGA168A-MMHR 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-MMH - 20MHz 32KB 8-Bit AVR MCU | Microchip Technology
ATMEGA328P-MMH ✓ ActiveMicrochip Technology
ATMEGA168A-MMHR - 8-Bit AVR MCU 16KB Flash 20MHz | Microchip
ATMEGA168A-MMHR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328P-MMH | ATMEGA168A-MMHR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Product Type | 8-bit AVR RISC microcontroller | — |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Flash Memory | 32 KB | — |
| Flash Organization | 16K x 16 bits | — |
| ISP Flash Read-While-Write | Supported | — |
| SRAM | 2 KB | 1 KB |
| EEPROM | 1024 bytes | 512 B |
| General-Purpose I/O Lines | 23 lines | — |
| General-Purpose Working Registers | 32 registers | — |
| Instruction Set | 131 powerful AVR instructions | 133 powerful instructions, most single-cycle |
| Single-Clock-Cycle Execution | Most instructions | — |
| Serial Interfaces | I2C, SPI, and UART/USART | — |
| Package | 28-VQFN, 4 x 4 mm | 28-VQFN (4x4 mm) with exposed pad |
| Package Pin Count | 28 pins | — |
| Mounting Type | Surface mount | Surface Mount |
| Operating Supply Voltage | 4.5 V to 5.5 V | — |
| Terminal Finish | NiPdAu | — |
| Green Compliance | Green | — |
| Core Architecture | — | 8-bit AVR RISC |
| Program Memory | — | 16 KB Flash (8K x 16) |
| Operating Voltage | — | 1.8 V to 5.5 V |
| Throughput | — | Up to 20 MIPS at 20 MHz |
| General Purpose I/O | — | 23 lines |
| General Purpose Registers | — | 32 (8-bit) |
| Timers | — | Two 8-bit, one 16-bit with PWM |
| ADC | — | 10-bit successive approximation |
| Communication Interfaces | — | USART, SPI, TWI (I2C) |
| Internal Oscillator | — | 8 MHz calibrated RC |
| Operating Temperature | — | -40 C to +85 C |
| RoHS Status | — | Compliant |