ATMEGA88PA-PN

Overview

The ATMEGA88PA-PN is an 8-bit AVR microcontroller featuring 8 KB of in-system programmable Flash memory, 512 bytes of EEPROM, and 1 KB of SRAM. It operates with a maximum clock frequency of 20 MHz and supports a supply voltage range of 1.8 V to 5.5 V. The device includes 23 general-purpose I/O lines, an 8-channel 10-bit ADC, and standard communication interfaces such as SPI, USART, and I2C. It is housed in a 28-pin PDIP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• High-performance 8-bit AVR architecture with single-cycle instruction execution
• Non-volatile memory with system-in-programmable Flash and EEPROM
• Integrated analog-to-digital converter with multiple input channels
• Multiple low-power sleep modes for energy efficiency

Applications

• Industrial control systems requiring robust 8-bit processing
• Consumer electronics utilizing low-voltage operation
• Embedded applications needing serial communication interfaces
• Battery-powered devices leveraging power-saving features

Procurement Notes

Verify the specific suffix PN indicates the 28-pin PDIP package configuration before ordering. Confirm that the PA variant meets the required low-power specifications for the target application. Check current availability status as manufacturing statuses may change. Ensure compatibility with existing PCB footprints designed for standard DIP-28 components.

Selection Notes

Select this component when a balance of moderate program memory and low-cost packaging is required. The PDIP format facilitates prototyping and through-hole assembly. Consider the 20 MHz speed limit against higher-frequency alternatives if real-time performance is critical. Evaluate the 1.8 V minimum voltage requirement against the system power rail stability.

Part Context

This part belongs to the ATmega88PA family, which extends the standard ATmega88 series with improved power consumption characteristics. The PA designation typically signifies optimized low-power operation compared to non-PA variants. It shares architectural similarities with the ATmega48 and ATmega168 families, offering scalable memory options within the same ecosystem.

Replacement Considerations

ATMEGA88A-PN serves as a direct functional substitute with identical pinout and specifications but without the PA low-power optimizations. Verify that the reduced power efficiency of the A variant does not impact battery life or thermal requirements in the final design.