ATMEGA328P-PUAlternatives & Equivalent Parts
About ATMEGA328P-PU
ATMEGA328P-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 | ATMEGA328P-PUSource | ATMEGA328P-PN | ATMEGA328-PU | ATMEGA328PB-MN | CAY16-151J4LF | CRA06S08322R0FTA | ATMEGA328P-ANR |
|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip | Microchip | Bourns | Vishay | Microchip |
| Package Type | Dual-In-Line Packages | Dual-In-Line Packages | Dual-In-Line Packages | Quad Flat No-Lead | Other | Other | Quad Flat Packages |
| Pin Count | 28 | 28 | 28 | 32 | 8 | 8 | 32 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 105.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 105.0°C | -55.0°C ~ 125.0°C | -55.0°C ~ 155.0°C | -40.0°C ~ 105.0°C |
| Price | $2.1400 | $2.2000 | $2.0110 | $1.1300 | $0.0120 | — | $0.9570 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | NOT RECOMMENDED | ACTIVE | ACTIVE | ACTIVE | ACTIVE | OBSOLETE | NOT RECOMMENDED |
| Electrical Parameters | |||||||
| Pbfree Code | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Manufacturer Package Code | SPDIP-28 | SPDIP-28 | SPDIP-28 | VQFN-32 | — | — | TQFP-32 |
| Factory Lead Time | 6 Weeks | 6 Weeks | 6 Weeks | 10 Weeks | 12 Weeks | — | 6 Weeks |
| YTEOL | 3 | 3 | 14 | 18 | 8 | 0 | 3 |
| Has ADC | YES | 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 | ALSO OPERATES AT 1.8V AT 4MHZ AND 2.7V AT 10 MHZ MINIMUM SUPPLY | — | — | IT ALSO OPERATES 1.8V AT 4 MHZ |
| Bit Size | 8 | 8 | 8 | 8 | — | — | 8 |
| Boundary Scan | NO | NO | NO | NO | — | — | NO |
| CPU Family | AVR RISC | AVR RISC | AVR RISC | AVR RISC | — | — | AVR RISC |
| Clock Frequency-Max | 20 MHz | 20 MHz | 20 MHz | 20 MHz | — | — | 20 MHz |
| DAC Channels | YES | YES | YES | NO | — | — | NO |
| DMA Channels | NO | NO | NO | NO | — | — | NO |
| Format | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT | — | — | FIXED POINT |
| Integrated Cache | NO | NO | NO | NO | — | — | NO |
| JESD-30 Code | R-PDIP-T28 | R-PDIP-T28 | R-PDIP-T28 | S-PQCC-N32 | — | — | S-PQFP-G32 |
| JESD-609 Code | e3 | e3 | e3 | e3 | e3 | e3 | e3 |
| Low Power Mode | YES | YES | YES | YES | — | — | YES |
| Number of External Interrupts | 2 | 2 | 2 | — | — | — | 2 |
| Number of I/O Lines | 23 | 23 | 23 | 27 | — | — | 23 |
| Number of Serial I/Os | 1 | 1 | 1 | 2 | — | — | 1 |
| Number of Timers | 3 | 3 | 3 | 5 | — | — | 3 |
| On Chip Data RAM Width | 8 | 8 | 8 | 8 | — | — | 8 |
| On Chip Program ROM Width | 16 | 16 | 16 | 16 | — | — | 16 |
| PWM Channels | YES | YES | YES | YES | — | — | YES |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | — | PLASTIC/EPOXY |
| Package Equivalence Code | DIP28,.3 | DIP28,.3 | DIP28,.3 | LCC32,.2SQ,20 | — | — | QFP32,.35SQ,32 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | SQUARE | RECTANGULAR PACKAGE | RECTANGULAR PACKAGE | SQUARE |
| Package Style | IN-LINE | IN-LINE | IN-LINE | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | SMT | SMT | FLATPACK, THIN PROFILE |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | — | — | — | Not Qualified |
| RAM (bytes) | 2048 | 2048 | 2048 | 2048 | — | — | 2048 |
| RAM (words) | 2048 | 2048 | 2048 | — | — | — | 2048 |
| ROM (words) | 16384 | 16384 | 16384 | 16384 | — | — | 16384 |
| ROM Programmability | FLASH | FLASH | FLASH | FLASH | — | — | FLASH |
| Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | — | — | 20 MHz |
| Supply Current-Max | 2.7 mA | 2.7 mA | 12 mA | 10 mA | — | — | 2.7 mA |
| Supply Voltage-Max | 5.5 V | 5.5 V | 5.5 V | 5.5 V | — | — | 5.5 V |
| Supply Voltage-Min | 5 V | 5 V | 5 V | 4.5 V | — | — | 5 V |
| Supply Voltage-Nom | 5 V | 5 V | 5 V | 5 V | — | — | 5 V |
| Surface Mount | NO | NO | NO | YES | YES | YES | YES |
| Technology | CMOS | CMOS | CMOS | CMOS | METAL GLAZE/THICK FILM | METAL GLAZE/THICK FILM | CMOS |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | — | — | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Tin (Sn) - with Nickel (Ni) barrier | Matte Tin (Sn) - with Nickel (Ni) barrier | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE | NO LEAD | — | — | GULL WING |
| Terminal Pitch | 2.54 mm | 2.54 mm | 2.54 mm | 0.5 mm | — | — | 0.8 mm |
| Terminal Position | DUAL | DUAL | DUAL | QUAD | — | — | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | — | — | MICROCONTROLLER, RISC |
| ## ATMEGA328P-PU Alternates Showing results | Image | — | — | — | — | — | — |
| ## ATMEGA328P-PN Alternates Showing results | — | Image | — | — | — | — | — |
| Peak Reflow Temperature (Cel) | — | — | — | 260 | — | — | 260 |
| Screening Level | — | — | — | TS 16949 | — | — | — |
| ## ATMEGA328PB-MN Alternates Showing results | — | — | — | Image | — | — | — |
| Reach Compliance Code | — | — | — | — | Compliant | Compliant | — |
| Construction | — | — | — | — | Rectangular | Chip | — |
| Element Power Dissipation | — | — | — | — | 0.0625 W | 0.063 W | — |
| First Element Resistance | — | — | — | — | 150 Ω | 22 Ω | — |
| Mounting Feature | — | — | — | — | SURFACE MOUNT | SURFACE MOUNT | — |
| Network Type | — | — | — | — | ISOLATED | ISOLATED | — |
| Number of Elements | — | — | — | — | 1 | 1 | — |
| Number of Functions | — | — | — | — | 4 | 4 | — |
| Package Height | — | — | — | — | 0.5 mm | 0.5 mm | — |
| Package Length | — | — | — | — | 3.2 mm | 3.2 mm | — |
| Package Width | — | — | — | — | 1.6 mm | 1.5 mm | — |
| Packing Method | — | — | — | — | TR, PAPER, 7 INCH | TR, PAPER, 7 INCH | — |
| Rated Power Dissipation (P) | — | — | — | — | 0.25 W | 0.063 W | — |
| Rated Temperature | — | — | — | — | 70 °C | 70 °C | — |
| Resistance | — | — | — | — | 150 Ω | 22 Ω | — |
| Resistor Type | — | — | — | — | ARRAY/NETWORK RESISTOR | ARRAY/NETWORK RESISTOR | — |
| Second/Last Element Resistance | — | — | — | — | 150 Ω | — | — |
| Size Code | — | — | — | — | 1206 | 0612 | — |
| Temperature Coefficient | — | — | — | — | 200 ppm/°C | 100 ppm/°C | — |
| Terminal Shape | — | — | — | — | WRAPAROUND | WRAPAROUND | — |
| Tolerance | — | — | — | — | 5% | 1% | — |
| Working Voltage | — | — | — | — | 50 V | 50 V | — |
| Subcategory | — | — | — | — | — | Array/Network Resistors | — |
| ## ATMEGA328P-ANR 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 6 alternatives for ATMEGA328P-PU — response within 24 hours.
Quick Links
Microchip Technology Inc 20 MHz, 105C, Green, PDIP
suggested
suggested
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suggested
RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PQFP32
Why Look for Alternatives?
Finding alternatives for ATMEGA328P-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 ATMEGA328P-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 ATMEGA328P-PU?
Known equivalents for ATMEGA328P-PU include ATMEGA328P-PN, ATMEGA328-PU, ATMEGA328PB-MN. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of ATMEGA328P-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 ATMEGA328P-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.