ATMEGA328P-20PU Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
• High Performance, Low Power AVR® 8-Bit Microcontroller • Advanced RISC Architecture – 131 Powerful Instructions – Most Single Clock Cycle Execution – 32 x 8 General Purpose Working Registers – Fully Static Operation – Up to 20 MIPS Throughput at 20 MHz
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- ATMEGA328P-20PU Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ATMEGA328P-20PU?
- Integrated Circuit from Microchip identified by manufacturer part number ATMEGA328P-20PU
- Documented technical context includes 8-Bit for engineering comparison
- Package or mechanical reference recorded as Dual-In-Line Packages for footprint checks
- Suitable for BOM sourcing, alternate review, repair stocking, and production procurement workflows
- Datasheet-backed context should be matched against voltage, current, timing, package, and lifecycle requirements before approval
What is ATMEGA328P-20PU used for?
ATMEGA328P-20PU is typically sourced for embedded electronics, industrial controls, communications equipment, and production BOM maintenance where buyers need a manufacturer-traceable integrated circuit with verifiable datasheet context. It is suitable for engineering replacement reviews, prototype builds, and production purchasing workflows that must confirm package fit, lifecycle risk, and key ratings such as 8-Bit.
What are the specifications of ATMEGA328P-20PU?
| YTEOL | 0 |
| Has ADC | YES |
| Additional Feature | IT ALSO OPERATES 2.7V AT 10 MHZ |
| Bit Size | 8 |
| Clock Frequency-Max | 20MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| JESD-30 Code | R-PDIP-T28 |
| Number of I/O Lines | 23 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| ROM Programmability | FLASH |
| Speed | 20MHz |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.31.00.15 |
Where can I find the ATMEGA328P-20PU datasheet?
ATMEGA328P-20PU Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for ATMEGA328P-20PU?
Compatible alternatives and drop-in replacements for ATMEGA328P-20PU:
suggested
suggested
RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PDIP28
RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PDIP28
Frequently Asked Questions
Does ATMEGA328P-20PU fit designs that require 8-Bit?
It can be considered when the target circuit needs a integrated circuit and the engineering review confirms 8-Bit against the official datasheet. Buyers should also verify package fit, lifecycle status, and manufacturer traceability before release.
How should buyers verify 8-Bit before approving ATMEGA328P-20PU?
Compare 8-Bit with the schematic requirement, qualified alternates, and procurement documentation before purchasing. The value should be checked together with package information, application temperature needs, and supplier lot traceability.
Which package and sourcing checks matter for ATMEGA328P-20PU from Microchip?
The recorded package reference is Dual-In-Line Packages, so purchasing and engineering teams should confirm footprint compatibility, assembly handling, and approved-source documentation. Keep 8-Bit in the review notes so substitutes are screened against the same requirement.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit