ATTINY45-20SUAlternatives & Equivalent Parts
About ATTINY45-20SU
ATTINY45-20SU is a Integrated Circuit component manufactured by Microchip. It comes in a Small Outline 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 | ATTINY45-20SUSource | ATTINY45-20SUR | ATTINY45-20PU | ATTINY45-20XU | ATTINY45V-10SHR | ATTINY45V-10SU | 570BAB001614DG | LM337SP | 1N4004 | M80-8500442 | ATTINY412-SSN | ATTINY412-SSNR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip | Microchip | Microchip | Microchip | Silicon Labs | STMicroelectronics | MULTICOMP | Harwin | Microchip | Microchip |
| Package Type | Small Outline Packages | Small Outline Packages | Dual-In-Line Packages | Small Outline Packages | Small Outline Packages | Small Outline Packages | Other | Transistor Outline, Vertical | Diodes, Axial Diameter Horizontal Mounting | Other | Small Outline Packages | Small Outline Packages |
| Pin Count | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 3 | 2 | 4 | 8 | 8 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | — | ~ 125.0°C | -55.0°C ~ 150.0°C | — | -40.0°C ~ 105.0°C | -40.0°C ~ 105.0°C |
| Price | $0.8920 | $0.8664 | $1.1000 | $1.0100 | — | $1.5666 | $36.3700 | $0.4892 | $0.0129 | $1.7800 | $0.1800 | $0.4512 |
| Stock | In 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 | ACTIVE | ACTIVE | ACTIVE | OBSOLETE | ACTIVE | — | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||||||||||
| Pbfree Code | Yes | Yes | Yes | Yes | Yes | Yes | — | — | — | Yes | — | — |
| Manufacturer Package Code | SOIJ-8 | SOIJ-8 | PDIP-8 | TSSOP-8 | — | SOIJ-8 | — | — | — | — | SOIC-8 | SOIC-8 |
| Factory Lead Time | 6 Weeks | 6 Weeks | 8 Weeks | — | — | 6 Weeks | — | 8 Weeks | — | — | 10 Weeks | 10 Weeks |
| YTEOL | 14 | 14 | 14 | 14 | 0 | 14 | — | 6.21 | 5.95 | 8 | 18 | 18 |
| Has ADC | YES | YES | YES | YES | YES | YES | — | — | — | — | YES | YES |
| Additional Feature | OPERATES AT 2.7 V MINIMUM SUPPLY AT 10 MHZ | OPERATES AT 2.7 V MINIMUM SUPPLY AT 10 MHZ | OPERATES AT 2.7 V MINIMUM SUPPLY AT 10 MHZ | OPERATES AT 2.7 V MINIMUM SUPPLY AT 10 MHZ | ALSO OPERATES AT 1.8V MINIMUM SUPPLY AT 4 MHZ | OPERATES AT 1.8 V MINIMUM SUPPLY AT 4 MHZ | — | — | — | POLARISED | ALSO OPERATES AT 1.8V MINIMUME SUPPLY AT 5MHZ AND 2.7V MINIMUM SUPPLY AT 10 MHZ | ALSO OPERATES AT 1.8V MINIMUME SUPPLY AT 5MHZ AND 2.7V MINIMUM SUPPLY AT 10 MHZ |
| Bit Size | 8 | 8 | 8 | 8 | 8 | 8 | — | — | — | — | 8 | 8 |
| Boundary Scan | NO | NO | NO | NO | — | NO | — | — | — | — | NO | NO |
| CPU Family | AVR RISC | AVR RISC | AVR RISC | AVR RISC | AVR RISC | AVR RISC | — | — | — | — | AVR RISC | AVR RISC |
| Clock Frequency-Max | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 10 MHz | 10 MHz | — | — | — | — | 20 MHz | 20 MHz |
| DAC Channels | NO | NO | NO | NO | NO | NO | — | — | — | — | YES | YES |
| DMA Channels | NO | NO | NO | NO | NO | NO | — | — | — | — | NO | NO |
| Format | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT | — | FIXED POINT | — | — | — | — | FIXED POINT | FIXED POINT |
| Integrated Cache | NO | NO | NO | NO | — | NO | — | — | — | — | NO | NO |
| JESD-30 Code | R-PDSO-G8 | R-PDSO-G8 | R-PDIP-T8 | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 | — | R-PSFM-T3 | O-PALF-W2 | — | R-PDSO-G8 | R-PDSO-G8 |
| JESD-609 Code | e3 | e3 | e3 | e3 | e4 | e3 | — | e3 | — | e3 | e3 | e3 |
| Low Power Mode | YES | YES | YES | YES | — | YES | — | — | — | — | YES | YES |
| Number of External Interrupts | 1 | 1 | 1 | 1 | — | 1 | — | — | — | — | 6 | 6 |
| Number of I/O Lines | 6 | 6 | 6 | 6 | 6 | 6 | — | — | — | — | 6 | 6 |
| Number of Timers | 2 | 2 | 2 | 2 | — | 2 | — | — | — | — | 3 | 3 |
| On Chip Data RAM Width | 8 | 8 | 8 | 8 | — | 8 | — | — | — | — | 8 | 8 |
| On Chip Program ROM Width | 8 | 8 | 8 | 8 | 8 | 8 | — | — | — | — | 16 | 16 |
| PWM Channels | YES | YES | YES | YES | YES | YES | — | — | — | — | YES | YES |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.3 | SOP8,.3 | DIP8,.3 | TSSOP8,.25 | SOP8,.3 | SOP8,.3 | — | SIP3,.1TB | — | — | SOP8,.23 | SOP8,.23 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | — | RECTANGULAR | ROUND | — | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | IN-LINE | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | SMALL OUTLINE | SMALL OUTLINE | — | FLANGE MOUNT | LONG FORM | — | SMALL OUTLINE | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 | 260 | — | 260 | — | 260 | — | NOT SPECIFIED | — | — | 260 | 260 |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | — | Not Qualified | — | — | — | — |
| RAM (bytes) | 256 | 256 | 256 | 256 | 256 | 256 | — | — | — | — | 256 | 256 |
| ROM (words) | 4096 | 4096 | 4096 | 4096 | 4096 | 4096 | — | — | — | — | 2048 | 2048 |
| ROM Programmability | FLASH | FLASH | FLASH | FLASH | FLASH | FLASH | — | — | — | — | FLASH | FLASH |
| Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 10 MHz | 10 MHz | — | — | — | — | 20 MHz | 20 MHz |
| Supply Current-Max | 8 mA | 8 mA | 8 mA | 8 mA | 8 mA | 8 mA | — | — | — | — | 200 mA | 200 mA |
| Supply Voltage-Max | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | — | — | — | — | 5.5 V | 5.5 V |
| Supply Voltage-Min | 5 V | 5 V | 5 V | 5 V | 3 V | 3 V | — | — | — | — | 5 V | 5 V |
| Supply Voltage-Nom | 5 V | 5 V | 5 V | 5 V | 3 V | 3 V | — | — | — | — | 5 V | 5 V |
| Surface Mount | YES | YES | NO | YES | YES | YES | — | NO | NO | — | YES | YES |
| Technology | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | — | BIPOLAR | — | — | CMOS | CMOS |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | — | — | — | — | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | NICKEL PALLADIUM GOLD | Matte Tin (Sn) | — | Matte Tin (Sn) - annealed | — | — | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | THROUGH-HOLE | GULL WING | GULL WING | GULL WING | — | THROUGH-HOLE | WIRE | — | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | 1.27 mm | 2.54 mm | 0.65 mm | 1.27 mm | 1.27 mm | — | 2.54 mm | — | 2 mm | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | — | SINGLE | AXIAL | — | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 | 40 | — | — | — | 40 | — | NOT SPECIFIED | — | — | — | — |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | — | — | — | — | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC |
| ## ATTINY45-20SUR Alternates Showing results | — | Image | — | — | — | — | — | — | — | — | — | — |
| ## ATTINY45-20PU Alternates Showing results | — | — | Image | — | — | — | — | — | — | — | — | — |
| ## ATTINY45V-10SU Alternates Showing results | — | — | — | — | — | Image | — | — | — | — | — | — |
| Adjustability | — | — | — | — | — | — | — | ADJUSTABLE | — | — | — | — |
| Dropout Voltage1-Nom | — | — | — | — | — | — | — | 3 V | — | — | — | — |
| Input-Output Voltage Differential-Max | — | — | — | — | — | — | — | 40 V | — | — | — | — |
| Input-Output Voltage Differential-Min | — | — | — | — | — | — | — | 3 V | — | — | — | — |
| Line Regulation-Max (%/V) | — | — | — | — | — | — | — | 0.07 | — | — | — | — |
| Load Regulation-Max(%) | — | — | — | — | — | — | — | 1.5% | — | — | — | — |
| Number of Functions | — | — | — | — | — | — | — | 1 | — | — | — | — |
| Number of Outputs | — | — | — | — | — | — | — | 1 | — | — | — | — |
| Operating Temperature TJ-Max | — | — | — | — | — | — | — | 125 °C | — | — | — | — |
| Output Current1-Max | — | — | — | — | — | — | — | 1.5 A | — | — | — | — |
| Output Voltage1-Max | — | — | — | — | — | — | — | 37 V | — | — | — | — |
| Output Voltage1-Min | — | — | — | — | — | — | — | 1.2 V | — | — | — | — |
| Packing Method | — | — | — | — | — | — | — | TUBE | — | — | — | — |
| Regulator Type | — | — | — | — | — | — | — | ADJUSTABLE NEGATIVE SINGLE OUTPUT STANDARD REGULATOR | — | — | — | — |
| ## LM337SP Alternates Showing results | — | — | — | — | — | — | — | Image | — | — | — | — |
| Application | — | — | — | — | — | — | — | — | GENERAL PURPOSE | — | — | — |
| Breakdown Voltage-Min | — | — | — | — | — | — | — | — | 400 V | — | — | — |
| Case Connection | — | — | — | — | — | — | — | — | ISOLATED | — | — | — |
| Configuration | — | — | — | — | — | — | — | — | SINGLE | — | — | — |
| Diode Element Material | — | — | — | — | — | — | — | — | SILICON | — | — | — |
| Diode Type | — | — | — | — | — | — | — | — | RECTIFIER DIODE | — | — | — |
| Forward Voltage-Max (VF) | — | — | — | — | — | — | — | — | 1 V | — | — | — |
| JEDEC-95 Code | — | — | — | — | — | — | — | — | DO-41 | — | — | — |
| Non-rep Pk Forward Current-Max | — | — | — | — | — | — | — | — | 30 A | — | — | — |
| Number of Elements | — | — | — | — | — | — | — | — | 1 | — | — | — |
| Number of Phases | — | — | — | — | — | — | — | — | 1 | — | — | — |
| Output Current-Max | — | — | — | — | — | — | — | — | 1 A | — | — | — |
| Reference Standard | — | — | — | — | — | — | — | — | MIL-STD-202; UL RECOGNIZED | — | — | — |
| Rep Pk Reverse Voltage-Max | — | — | — | — | — | — | — | — | 400 V | — | — | — |
| Reverse Current-Max | — | — | — | — | — | — | — | — | 5 µA | — | — | — |
| Reverse Test Voltage | — | — | — | — | — | — | — | — | 400 V | — | — | — |
| Body Breadth | — | — | — | — | — | — | — | — | — | 0.217 inch | — | — |
| Body Depth | — | — | — | — | — | — | — | — | — | 0.202 inch | — | — |
| Body Length | — | — | — | — | — | — | — | — | — | 0.406 inch | — | — |
| Body/Shell Style | — | — | — | — | — | — | — | — | — | SOCKET | — | — |
| Connector Type | — | — | — | — | — | — | — | — | — | BOARD CONNECTOR | — | — |
| Contact Finish Mating | — | — | — | — | — | — | — | — | — | NOT APPLICABLE | — | — |
| Contact Finish Termination | — | — | — | — | — | — | — | — | — | Tin (Sn) - with Nickel (Ni) barrier | — | — |
| Contact Gender | — | — | — | — | — | — | — | — | — | FEMALE | — | — |
| Contact Material | — | — | — | — | — | — | — | — | — | NOT SPECIFIED | — | — |
| Contact Pattern | — | — | — | — | — | — | — | — | — | RECTANGULAR | — | — |
| Contact Style | — | — | — | — | — | — | — | — | — | RND PIN-SKT | — | — |
| DIN Conformance | — | — | — | — | — | — | — | — | — | NO | — | — |
| Filter Feature | — | — | — | — | — | — | — | — | — | NO | — | — |
| IEC Conformance | — | — | — | — | — | — | — | — | — | NO | — | — |
| Insertion Force-Max | — | — | — | — | — | — | — | — | — | 2.78 N | — | — |
| Insulator Material | — | — | — | — | — | — | — | — | — | POLYAMIDE | — | — |
| MIL Conformance | — | — | — | — | — | — | — | — | — | NO | — | — |
| Mating Contact Pitch | — | — | — | — | — | — | — | — | — | 0.079 inch | — | — |
| Mating Contact Row Spacing | — | — | — | — | — | — | — | — | — | 0.079 inch | — | — |
| Mating Information | — | — | — | — | — | — | — | — | — | MULTIPLE MATING PARTS AVAILABLE | — | — |
| Mixed Contacts | — | — | — | — | — | — | — | — | — | NO | — | — |
| Mounting Option 1 | — | — | — | — | — | — | — | — | — | LOCKING | — | — |
| 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 | — | — | — | — | — | — | — | — | — | 2.0066 mm | — | — |
| Polarization Key | — | — | — | — | — | — | — | — | — | POLARIZED HOUSING | — | — |
| Terminal Length | — | — | — | — | — | — | — | — | — | 0.118 inch | — | — |
| Termination Type | — | — | — | — | — | — | — | — | — | SOLDER | — | — |
| Total Number of Contacts | — | — | — | — | — | — | — | — | — | 4 | — | — |
| UL Flammability Code | — | — | — | — | — | — | — | — | — | 94V-0 | — | — |
| Date Of Intro | — | — | — | — | — | — | — | — | — | — | 2019-07-03 | 2017-07-13 |
| Number of Serial I/Os | — | — | — | — | — | — | — | — | — | — | 1 | 1 |
| RAM (words) | — | — | — | — | — | — | — | — | — | — | 256 | 256 |
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 11 alternatives for ATTINY45-20SU — response within 24 hours.
Quick Links
ATTINY45-20SUR
Microchip Technology Inc 20MHZ, SOIC, IND TEMP, GREEN, 5V, T&R
ATTINY45-20PU
suggested
ATTINY45-20XU
suggested
ATTINY45V-10SHR
suggested
ATTINY45V-10SU
suggested
570BAB001614DG
suggested
M80-8500442
suggested
ATTINY412-SSNRby Microchip Technology Inc
RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PDSO8
Why Look for Alternatives?
Finding alternatives for ATTINY45-20SU 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.
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FAQ
What is equivalent to ATTINY45-20SU?
Known equivalents for ATTINY45-20SU include ATTINY45-20SUR, ATTINY45-20PU, ATTINY45-20XU. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of ATTINY45-20SU?
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 ATTINY45-20SU 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.