ATMEGA328-PUAlternatives & Equivalent Parts
About ATMEGA328-PU
ATMEGA328-PU is a Integrated Circuit component manufactured by Microchip. It comes in a Dual-In-Line 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 | ATMEGA328-PUSource | ATMEGA328P-PU | DS90CR285MTD | ATMEGA328P-PN | ATMEGA328P-20PU |
|---|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Texas Instruments | Microchip | Microchip |
| Package Type | Dual-In-Line Packages | Dual-In-Line Packages | — | Dual-In-Line Packages | Dual-In-Line Packages |
| Pin Count | 28 | 28 | — | 28 | 28 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | — | -40.0°C ~ 105.0°C | -40.0°C ~ 85.0°C |
| Price | $2.0110 | $2.1400 | $5.2300 | $2.2000 | — |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | NOT RECOMMENDED | ACTIVE | ACTIVE | OBSOLETE |
| Electrical Parameters | |||||
| Pbfree Code | Yes | Yes | — | Yes | — |
| Manufacturer Package Code | SPDIP-28 | SPDIP-28 | — | SPDIP-28 | — |
| Factory Lead Time | 6 Weeks | 6 Weeks | — | 6 Weeks | — |
| YTEOL | 14 | 3 | 0 | 3 | 0 |
| Has ADC | YES | YES | — | YES | YES |
| Additional Feature | IT ALSO OPERATES 1.8V AT 4 MHZ | IT ALSO OPERATES 1.8V AT 4 MHZ | — | IT ALSO OPERATES 1.8V AT 4 MHZ | IT ALSO OPERATES 2.7V AT 10 MHZ |
| Bit Size | 8 | 8 | — | 8 | 8 |
| Boundary Scan | NO | NO | — | NO | — |
| CPU Family | AVR RISC | AVR RISC | — | AVR RISC | — |
| Clock Frequency-Max | 20 MHz | 20 MHz | — | 20 MHz | 20 MHz |
| DAC Channels | YES | YES | — | YES | NO |
| DMA Channels | NO | NO | — | NO | NO |
| Format | FIXED POINT | FIXED POINT | — | FIXED POINT | — |
| Integrated Cache | NO | NO | — | NO | — |
| JESD-30 Code | R-PDIP-T28 | R-PDIP-T28 | R-PDSO-G56 | R-PDIP-T28 | R-PDIP-T28 |
| JESD-609 Code | e3 | e3 | e0 | e3 | — |
| Low Power Mode | YES | YES | — | YES | — |
| Number of External Interrupts | 2 | 2 | — | 2 | — |
| Number of I/O Lines | 23 | 23 | — | 23 | 23 |
| Number of Serial I/Os | 1 | 1 | — | 1 | — |
| Number of Timers | 3 | 3 | — | 3 | — |
| On Chip Data RAM Width | 8 | 8 | — | 8 | — |
| On Chip Program ROM Width | 16 | 16 | — | 16 | — |
| PWM Channels | YES | YES | — | YES | YES |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | DIP28,.3 | DIP28,.3 | TSSOP56,.3,20 | DIP28,.3 | — |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | IN-LINE | IN-LINE | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | IN-LINE | IN-LINE |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| RAM (bytes) | 2048 | 2048 | — | 2048 | — |
| RAM (words) | 2048 | 2048 | — | 2048 | — |
| ROM (words) | 16384 | 16384 | — | 16384 | — |
| ROM Programmability | FLASH | FLASH | — | FLASH | FLASH |
| Speed | 20 MHz | 20 MHz | — | 20 MHz | 20 MHz |
| Supply Current-Max | 12 mA | 2.7 mA | 55 mA | 2.7 mA | — |
| Supply Voltage-Max | 5.5 V | 5.5 V | 3.6 V | 5.5 V | 5.5 V |
| Supply Voltage-Min | 5 V | 5 V | 3 V | 5 V | 4.5 V |
| Supply Voltage-Nom | 5 V | 5 V | 3.3 V | 5 V | 5 V |
| Surface Mount | NO | NO | YES | NO | NO |
| Technology | CMOS | CMOS | CMOS | CMOS | CMOS |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | Tin/Lead (Sn/Pb) | Matte Tin (Sn) | — |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | GULL WING | THROUGH-HOLE | THROUGH-HOLE |
| Terminal Pitch | 2.54 mm | 2.54 mm | 0.5 mm | 2.54 mm | 2.54 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | — | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC |
| ## ATMEGA328P-PU Alternates Showing results | — | Image | — | — | — |
| Date Of Intro | — | — | 1997-06-01 | — | — |
| Differential Output | — | — | YES | — | — |
| Driver Number of Bits | — | — | 4 | — | — |
| High Level Input Current-Max | — | — | 0.00001 A | — | — |
| Input Characteristics | — | — | STANDARD | — | — |
| Interface IC Type | — | — | LINE DRIVER | — | — |
| Interface Standard | — | — | EIA-644; TIA-644 | — | — |
| Number of Functions | — | — | 4 | — | — |
| Out Swing-Min | — | — | 0.25 V | — | — |
| Output Characteristics | — | — | DIFFERENTIAL | — | — |
| Output Low Current-Max | — | — | 0.002 A | — | — |
| Output Polarity | — | — | COMPLEMENTARY | — | — |
| Peak Reflow Temperature (Cel) | — | — | 235 | — | — |
| Supply Voltage1-Max | — | — | 3.6 V | — | — |
| Supply Voltage1-Min | — | — | 3 V | — | — |
| Supply Voltage1-Nom | — | — | 3.3 V | — | — |
| Time@Peak Reflow Temperature-Max (s) | — | — | 20 | — | — |
| ## DS90CR285MTD Alternates Showing results | — | — | Image | — | — |
| ## ATMEGA328P-PN 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 4 alternatives for ATMEGA328-PU — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for ATMEGA328-PU 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 ATMEGA328-PU 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 ATMEGA328-PU?
Known equivalents for ATMEGA328-PU include ATMEGA328P-PU, DS90CR285MTD, ATMEGA328P-PN. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of ATMEGA328-PU?
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 ATMEGA328-PU 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.