ATMEGA161L-4PI vs ATMEGA161L-4AI Comparison
Detailed side-by-side comparison of ATMEGA161L-4PI by Microchip Technology and ATMEGA161L-4AI 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
ATMEGA161L-4PI - 8-bit AVR MCU 4MHz 16KB Flash | Microchip
ATMEGA161L-4PI ✗ End of LifeMicrochip Technology
ATMEGA161L-4AI - 16KB AVR MCU 4MHz TQFP-44 | Microchip
ATMEGA161L-4AI ✗ End of LifeSpecification Comparison
| Parameter | ATMEGA161L-4PI | ATMEGA161L-4AI |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | End of Life | End of Life |
| Core Architecture | 8-bit AVR RISC | — |
| Core Series | AVR ATmega (ATmega161) | — |
| Maximum Clock Frequency | 4 MHz | — |
| Program Memory Size | 16 KB (8K x 16) Flash | 16KB (8K x 16) |
| SRAM Size | 1 KB (1K x 8) | — |
| EEPROM Size | 512 B | — |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| Number of I/O | 35 | 35 |
| Oscillator Type | External | External |
| Package / Case | 40-PDIP (0.600 in, 15.24 mm) | 44-TQFP (10x10 mm) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C |
| Instruction Set | 130 instructions, most single-cycle | — |
| Packaging | Tray | Tray |
| Mounting Type | Through Hole | Surface Mount |
| RoHS Status | ROHS (per LCSC listing) | [DATA_NEEDED: RoHS status] |
| Program Memory Type | FLASH | FLASH |
| Interfaces | Dual UART, SPI (port B) | — |
| Core Processor | — | AVR 8-bit RISC |
| Core Size | — | 8-bit |
| Speed | — | 4MHz |
| RAM Size | — | 1K x 8 |
| Connectivity | — | SPI, UART/USART |
| Voltage Supply Range | — | 2.7V to 5.5V (L grade) |
| Series | — | AVR ATmega161 |
| Architecture | — | Harvard RISC, 130 instructions |