Microchip Technology ATMEGA168A-PU Microcontrollers
IC MCU 8BIT 16KB FLASH 28DIP
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
ATMEGA168A-PU
Base Model
Detailed Description
IC MCU 8BIT 16KB FLASH 28DIP
Package
28-DIP (0.300", 7.62mm)
Lifecycle Status
Active
Datasheet
ATMEGA168A-PU Datasheet
Quick Jump:
Technical Specifications
Microchip Technology ATMEGA168A-PU Microcontrollers technical specifications.
General
Series
ATmega168A
RAM Size
1K x 8
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
RoHS
Yes
Package / Case
28-DIP
Mounting Type
Through Hole
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
1.8V ~ 5.5V
Lifecycle Status
Active
Alternate Parts Comparison (ATMEGA168A-PU vs ATMEGA168A-MMH vs ATMEGA168A-AUR vs ATMEGA168A-AU)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 28-DIP | 28-VFQFN Exposed Pad | 32-TQFP | 32-TQFP |
| Mounting Type | Through Hole | 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 | 1.8V ~ 5.5V | 1.8V ~ 5.5V | 1.8V ~ 5.5V | 1.8V ~ 5.5V |
| Core Processor | AVR | AVR | AVR | AVR |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| RAM Size | 1K x 8 | 1K x 8 | 1K x 8 | 1K x 8 |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active | Active |
| Connectivity | I²C, SPI, UART/USART | I²C, SPI, UART/USART | I²C, SPI, UART/USART | I²C, SPI, UART/USART |
| Data Converters | A/D 6x10b | A/D 8x10b | A/D 8x10b | A/D 8x10b |
| EEPROM Size | 512 x 8 | 512 x 8 | 512 x 8 | 512 x 8 |
| 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
NXP
IC MCU 8BIT 32KB FLASH 44QFP
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Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.