Microchip Technology ATMEGA161-8AI Microcontroller, Microprocessor, FPGA Modules
IC MCU 8BIT 16KB FLASH 44TQFP
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
ATMEGA161-8AI
Detailed Description
IC MCU 8BIT 16KB FLASH 44TQFP
Package
44-TQFP
Key Features
Package / Case: 44-TQFP; Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
ATMEGA161-8AI Datasheet
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Technical Specifications
Microchip Technology ATMEGA161-8AI Microcontroller, Microprocessor, FPGA Modules technical specifications.
General
RAM Size
1K x 8
RoHS
Yes
Package / Case
44-TQFP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
4V ~ 5.5V
Lifecycle Status
Obsolete
Peripherals
POR, PWM, WDT
Number of I/O
35
Speed
8MHz
Related Parts Comparison (ATMEGA161-8AI vs ATMEGA644A-AUR vs PIC24FJ64GA004T-I/PT vs PIC18C442-I/PT)
Side-by-side specifications of related catalog parts.
Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.
| This Part | Related Part | Related Part | Related Part | |
|---|---|---|---|---|
| Package / Case | 44-TQFP | 44-TQFP | 44-TQFP | 44-TQFP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supply Voltage | 4V ~ 5.5V | 1.8V ~ 5.5V | 2V ~ 3.6V | 4.2V ~ 5.5V |
| Core Processor | AVR | AVR | PIC | PIC |
| Core Size | 8-Bit | 8-Bit | 16-Bit | 8-Bit |
| RAM Size | 1K x 8 | 4K x 8 | 8K x 8 | 512 x 8 |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Obsolete | Active | Active | Active |
| Connectivity | SPI, UART/USART | I²C, SPI, UART/USART | I²C, PMP, SPI, UART/USART | I²C, SPI, UART/USART |
| Number of I/O | 35 | 32 | 35 | 33 |
| Oscillator Type | External | Internal | Internal | External |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
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IC MCU 8BIT 32KB FLASH 44QFP
MC908GR16CFAENXP SemiconductorsNXP
IC MCU 8BIT 16KB FLASH 48LQFP
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