ATMEGA328P-AUAlternatives & Equivalent Parts
About ATMEGA328P-AU
ATMEGA328P-AU is a Integrated Circuit component manufactured by Microchip. It comes in a Quad Flat Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | ATMEGA328P-AUSource | ATMEGA328P-AUR | ATMEGA328P-ANR | ATMEGA328P-AN | TPS92641PWP/NOPB | SK6812MINI-E | CSD17303Q5 | ECPU1C104MA5 | SSQ-109-01-G-D | ATMEGA328-AU | ATMEGA328-AUR |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip | Microchip | Texas Instruments | Yellow Stone Corp. | Texas Instruments | Panasonic | SAMTEC | Microchip | Microchip |
| Package Type | Quad Flat Packages | Quad Flat Packages | Quad Flat Packages | Quad Flat Packages | Small Outline Packages | Other | — | Other | Other | Quad Flat Packages | Quad Flat Packages |
| Pin Count | 32 | 32 | 32 | 32 | 17 | 4 | — | 2 | 18 | 32 | 32 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 105.0°C | -40.0°C ~ 105.0°C | -40.0°C ~ 125.0°C | — | — | -40.0°C ~ 85.0°C | -55.0°C ~ 125.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $1.9300 | $2.3000 | $0.9570 | $2.0200 | $2.0800 | — | $0.7307 | $0.5030 | $2.1320 | $1.7700 | $1.5980 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | NOT RECOMMENDED | NOT RECOMMENDED | ACTIVE | ACTIVE | ACTIVE | — | OBSOLETE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | |||||||||||
| Pbfree Code | Yes | Yes | Yes | Yes | Yes | — | — | — | Yes | Yes | Yes |
| Manufacturer Package Code | TQFP-32 | TQFP-32 | TQFP-32 | TQFP-32 | — | — | — | — | — | TQFP-32 | TQFP-32 |
| Factory Lead Time | 6 Weeks | 7 Weeks | 6 Weeks | 6 Weeks | — | — | — | — | 1 Week | 6 Weeks | 6 Weeks |
| YTEOL | 3 | 3 | 3 | 3 | 15 | — | — | 0 | 9.1 | 14 | 14 |
| Has ADC | YES | YES | YES | YES | — | — | — | — | — | YES | YES |
| Additional Feature | ALSO OPERATES AT 1.8V AT 4MHZ AND 2.7V AT 10 MHZ MINIMUM SUPPLY | IT ALSO OPERATES 1.8V AT 4 MHZ | IT ALSO OPERATES 1.8V AT 4 MHZ | IT ALSO OPERATES 1.8V AT 4 MHZ | — | — | — | — | TIGER BUY CONTACT | IT ALSO OPERATES 1.8V AT 4 MHZ | IT ALSO OPERATES 1.8V AT 4 MHZ |
| Bit Size | 8 | 8 | 8 | 8 | — | — | — | — | — | 8 | 8 |
| Boundary Scan | NO | NO | NO | NO | — | — | — | — | — | NO | NO |
| CPU Family | AVR RISC | AVR RISC | AVR RISC | AVR RISC | — | — | — | — | — | AVR RISC | AVR RISC |
| Clock Frequency-Max | 20 MHz | 20 MHz | 20 MHz | 20 MHz | — | — | — | — | — | 20 MHz | 20 MHz |
| DAC Channels | NO | NO | NO | NO | — | — | — | — | — | NO | NO |
| DMA Channels | NO | NO | NO | NO | — | — | — | — | — | NO | NO |
| Format | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT | — | — | — | — | — | FIXED POINT | FIXED POINT |
| Integrated Cache | NO | NO | NO | NO | — | — | — | — | — | NO | NO |
| JESD-30 Code | S-PQFP-G32 | S-PQFP-G32 | S-PQFP-G32 | S-PQFP-G32 | R-PDSO-G16 | — | — | — | — | S-PQFP-G32 | S-PQFP-G32 |
| JESD-609 Code | e3 | e3 | e3 | e3 | e3 | — | — | e1 | e4 | e3 | e3 |
| Low Power Mode | YES | YES | YES | YES | — | — | — | — | — | YES | YES |
| Number of External Interrupts | 2 | 2 | 2 | 2 | — | — | — | — | — | 2 | 2 |
| Number of I/O Lines | 23 | 23 | 23 | 23 | — | — | — | — | — | 23 | 23 |
| Number of Serial I/Os | 1 | 1 | 1 | 1 | — | — | — | — | — | 1 | 1 |
| Number of Timers | 3 | 3 | 3 | 3 | — | — | — | — | — | 3 | 3 |
| On Chip Data RAM Width | 8 | 8 | 8 | 8 | — | — | — | — | — | 8 | 8 |
| On Chip Program ROM Width | 16 | 16 | 16 | 16 | — | — | — | — | — | 16 | 16 |
| PWM Channels | YES | YES | YES | YES | — | — | — | — | — | YES | YES |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | — | — | — | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP32,.35SQ,32 | QFP32,.35SQ,32 | QFP32,.35SQ,32 | QFP32,.35SQ,32 | TSSOP16,.25 | — | — | — | — | TQFP32,.35SQ,32 | TQFP32,.35SQ,32 |
| Package Shape | SQUARE | SQUARE | SQUARE | SQUARE | RECTANGULAR | — | — | RECTANGULAR PACKAGE | — | SQUARE | SQUARE |
| Package Style | FLATPACK, THIN PROFILE | FLATPACK, THIN PROFILE | FLATPACK, THIN PROFILE | FLATPACK, THIN PROFILE | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH | — | — | SMT | — | FLATPACK, THIN PROFILE | FLATPACK, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | 260 | 260 | — | — | — | — | 260 | 260 |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | — | — | — | — | Not Qualified | Not Qualified |
| RAM (bytes) | 2048 | 2048 | 2048 | 2048 | — | — | — | — | — | 2048 | 2048 |
| RAM (words) | 2048 | 2048 | 2048 | 2048 | — | — | — | — | — | 2048 | 2048 |
| ROM (words) | 16384 | 16384 | 16384 | 16384 | — | — | — | — | — | 16384 | 16384 |
| ROM Programmability | FLASH | FLASH | FLASH | FLASH | — | — | — | — | — | FLASH | FLASH |
| Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | — | — | — | — | — | 20 MHz | 20 MHz |
| Supply Current-Max | 9 mA | 2.7 mA | 2.7 mA | 2.7 mA | 3 mA | — | — | — | — | 12 mA | 12 mA |
| Supply Voltage-Max | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 85 V | — | — | — | — | 5.5 V | 5.5 V |
| Supply Voltage-Min | 5 V | 5 V | 5 V | 5 V | 7 V | — | — | — | — | 5 V | 5 V |
| Supply Voltage-Nom | 5 V | 5 V | 5 V | 5 V | 24 V | — | — | — | — | 5 V | 5 V |
| Surface Mount | YES | YES | YES | YES | YES | — | — | YES | — | YES | YES |
| Technology | CMOS | CMOS | CMOS | CMOS | — | — | — | — | — | CMOS | CMOS |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | AUTOMOTIVE | — | — | — | — | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | — | — | Tin/Silver/Copper (Sn/Ag/Cu) - hot dipped | — | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING | — | — | — | — | GULL WING | GULL WING |
| Terminal Pitch | 0.8 mm | 0.8 mm | 0.8 mm | 0.8 mm | 0.65 mm | — | — | — | 2.54 mm | 0.8 mm | 0.8 mm |
| Terminal Position | QUAD | QUAD | QUAD | QUAD | DUAL | — | — | — | — | QUAD | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | — | — | — | — | — | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC |
| ## ATMEGA328P-AU Alternates Showing results | Image | — | — | — | — | — | — | — | — | — | — |
| ## ATMEGA328P-AUR Alternates Showing results | — | Image | — | — | — | — | — | — | — | — | — |
| ## ATMEGA328P-ANR Alternates Showing results | — | — | Image | — | — | — | — | — | — | — | — |
| ## ATMEGA328P-AN Alternates Showing results | — | — | — | Image | — | — | — | — | — | — | — |
| Input Characteristics | — | — | — | — | STANDARD | — | — | — | — | — | — |
| Interface IC Type | — | — | — | — | LED DISPLAY DRIVER | — | — | — | — | — | — |
| Number of Channels | — | — | — | — | 1 | — | — | — | — | — | — |
| Number of Functions | — | — | — | — | 1 | — | — | — | — | — | — |
| Number of Segments | — | — | — | — | 2 | — | — | — | — | — | — |
| Output Characteristics | — | — | — | — | CONSTANT-CURRENT | — | — | — | — | — | — |
| Time@Peak Reflow Temperature-Max (s) | — | — | — | — | 30 | — | — | — | — | — | — |
| Reach Compliance Code | — | — | — | — | — | — | — | Compliant | — | — | — |
| Capacitance | — | — | — | — | — | — | — | 0.1 µF | — | — | — |
| Capacitor Type | — | — | — | — | — | — | — | FILM CAPACITOR | — | — | — |
| Dielectric Material | — | — | — | — | — | — | — | ACRYLIC RESIN | — | — | — |
| Height | — | — | — | — | — | — | — | 1 mm | — | — | — |
| Mounting Feature | — | — | — | — | — | — | — | SURFACE MOUNT | — | — | — |
| Negative Tolerance | — | — | — | — | — | — | — | 20% | — | — | — |
| Packing Method | — | — | — | — | — | — | — | TR, EMBOSSED, 7 INCH | — | — | — |
| Positive Tolerance | — | — | — | — | — | — | — | 20% | — | — | — |
| Rated (DC) Voltage (URdc) | — | — | — | — | — | — | — | 16 V | — | — | — |
| Size Code | — | — | — | — | — | — | — | 0805 | — | — | — |
| Terminal Shape | — | — | — | — | — | — | — | WRAPAROUND | — | — | — |
| Body Breadth | — | — | — | — | — | — | — | — | 0.195 inch | — | — |
| Body Depth | — | — | — | — | — | — | — | — | 0.335 inch | — | — |
| Body Length | — | — | — | — | — | — | — | — | 0.92 inch | — | — |
| Body/Shell Style | — | — | — | — | — | — | — | — | SOCKET | — | — |
| Connector Type | — | — | — | — | — | — | — | — | BOARD CONNECTOR | — | — |
| Contact Finish Mating | — | — | — | — | — | — | — | — | GOLD (20) OVER NICKEL (50) | — | — |
| Contact Finish Termination | — | — | — | — | — | — | — | — | Gold (Au) - with Nickel (Ni) barrier | — | — |
| Contact Gender | — | — | — | — | — | — | — | — | FEMALE | — | — |
| Contact Material | — | — | — | — | — | — | — | — | PHOSPHOR BRONZE | — | — |
| Contact Pattern | — | — | — | — | — | — | — | — | RECTANGULAR | — | — |
| Contact Resistance | — | — | — | — | — | — | — | — | 10 mΩ | — | — |
| Contact Style | — | — | — | — | — | — | — | — | SQ PIN-SKT | — | — |
| DIN Conformance | — | — | — | — | — | — | — | — | NO | — | — |
| Filter Feature | — | — | — | — | — | — | — | — | NO | — | — |
| IEC Conformance | — | — | — | — | — | — | — | — | NO | — | — |
| Insulator Color | — | — | — | — | — | — | — | — | BLACK | — | — |
| Insulator Material | — | — | — | — | — | — | — | — | LIQUID CRYSTAL POLYMER | — | — |
| MIL Conformance | — | — | — | — | — | — | — | — | NO | — | — |
| Mating Contact Pitch | — | — | — | — | — | — | — | — | 0.1 inch | — | — |
| Mating Contact Row Spacing | — | — | — | — | — | — | — | — | 0.1 inch | — | — |
| Mating Information | — | — | — | — | — | — | — | — | MULTIPLE MATING PARTS AVAILABLE | — | — |
| Mixed Contacts | — | — | — | — | — | — | — | — | NO | — | — |
| Mounting Style | — | — | — | — | — | — | — | — | STRAIGHT | — | — |
| Mounting Type | — | — | — | — | — | — | — | — | BOARD | — | — |
| Number Of Connectors | — | — | — | — | — | — | — | — | ONE | — | — |
| Number Of PCB Rows | — | — | — | — | — | — | — | — | 2 | — | — |
| Number of Rows Loaded | — | — | — | — | — | — | — | — | 2 | — | — |
| Option | — | — | — | — | — | — | — | — | GENERAL PURPOSE | — | — |
| PCB Contact Pattern | — | — | — | — | — | — | — | — | RECTANGULAR | — | — |
| PCB Contact Row Spacing | — | — | — | — | — | — | — | — | 2.54 mm | — | — |
| Plating Thickness | — | — | — | — | — | — | — | — | 20u inch | — | — |
| Rated Current (Signal) | — | — | — | — | — | — | — | — | 3 A | — | — |
| Reference Standard | — | — | — | — | — | — | — | — | UL, CSA | — | — |
| Terminal Length | — | — | — | — | — | — | — | — | 0.1 inch | — | — |
| Termination Type | — | — | — | — | — | — | — | — | SOLDER | — | — |
| Total Number of Contacts | — | — | — | — | — | — | — | — | 18 | — | — |
| ## ATMEGA328-AU Alternates Showing results | — | — | — | — | — | — | — | — | — | Image | — |
| ## ATMEGA328-AUR Alternates Showing results | — | — | — | — | — | — | — | — | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 10 alternatives for ATMEGA328P-AU — response within 24 hours.
Quick Links
RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PQFP32
RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PQFP32
RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PQFP32
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RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PQFP32
Why Look for Alternatives?
Finding alternatives for ATMEGA328P-AU is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating ATMEGA328P-AU replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to ATMEGA328P-AU?
Known equivalents for ATMEGA328P-AU include ATMEGA328P-AUR, ATMEGA328P-ANR, ATMEGA328P-AN. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of ATMEGA328P-AU?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify ATMEGA328P-AU alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.