ATTINY45-20PUAlternatives & Equivalent Parts
About ATTINY45-20PU
ATTINY45-20PU 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.
Specification Comparison
| Parameter | ATTINY45-20PUSource | ATTINY45-20SU | ATTINY45V-10SU | ATTINY45-20SU | LM337SP |
|---|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip | Microchip | STMicroelectronics |
| Package Type | Dual-In-Line Packages | Small Outline Packages | Small Outline Packages | Small Outline Packages | Transistor Outline, Vertical |
| Pin Count | 8 | 8 | 8 | 8 | 3 |
| 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 | ~ 125.0°C |
| Price | $1.1000 | $0.8920 | $1.5666 | $0.8920 | $0.4892 |
| Electrical Parameters | |||||
| Pbfree Code | Yes | Yes | Yes | Yes | — |
| Manufacturer Package Code | PDIP-8 | SOIJ-8 | SOIJ-8 | SOIJ-8 | — |
| Factory Lead Time | 8 Weeks | 6 Weeks | 6 Weeks | 6 Weeks | 8 Weeks |
| YTEOL | 14 | 14 | 14 | 14 | 6.21 |
| Has ADC | 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 1.8 V MINIMUM SUPPLY AT 4 MHZ | OPERATES AT 2.7 V MINIMUM SUPPLY AT 10 MHZ | — |
| Bit Size | 8 | 8 | 8 | 8 | — |
| Boundary Scan | NO | NO | NO | NO | — |
| CPU Family | AVR RISC | AVR RISC | AVR RISC | AVR RISC | — |
| Clock Frequency-Max | 20 MHz | 20 MHz | 10 MHz | 20 MHz | — |
| DAC Channels | NO | NO | NO | NO | — |
| DMA Channels | NO | NO | NO | NO | — |
| Format | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT | — |
| Integrated Cache | NO | NO | NO | NO | — |
| JESD-30 Code | R-PDIP-T8 | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 | R-PSFM-T3 |
| JESD-609 Code | e3 | e3 | e3 | e3 | e3 |
| Low Power Mode | YES | YES | YES | YES | — |
| Number of External Interrupts | 1 | 1 | 1 | 1 | — |
| Number of I/O Lines | 6 | 6 | 6 | 6 | — |
| Number of Timers | 2 | 2 | 2 | 2 | — |
| On Chip Data RAM Width | 8 | 8 | 8 | 8 | — |
| On Chip Program ROM Width | 8 | 8 | 8 | 8 | — |
| PWM Channels | YES | YES | YES | YES | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 | SOP8,.3 | SOP8,.3 | SOP8,.3 | SIP3,.1TB |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | IN-LINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | FLANGE MOUNT |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| RAM (bytes) | 256 | 256 | 256 | 256 | — |
| ROM (words) | 4096 | 4096 | 4096 | 4096 | — |
| ROM Programmability | FLASH | FLASH | FLASH | FLASH | — |
| Speed | 20 MHz | 20 MHz | 10 MHz | 20 MHz | — |
| Supply Current-Max | 8 mA | 8 mA | 8 mA | 8 mA | — |
| Supply Voltage-Max | 5.5 V | 5.5 V | 5.5 V | 5.5 V | — |
| Supply Voltage-Min | 5 V | 5 V | 3 V | 5 V | — |
| Supply Voltage-Nom | 5 V | 5 V | 3 V | 5 V | — |
| Surface Mount | NO | YES | YES | YES | NO |
| Technology | CMOS | CMOS | CMOS | CMOS | BIPOLAR |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | — |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) - annealed |
| Terminal Form | THROUGH-HOLE | GULL WING | GULL WING | GULL WING | THROUGH-HOLE |
| Terminal Pitch | 2.54 mm | 1.27 mm | 1.27 mm | 1.27 mm | 2.54 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL | SINGLE |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | — |
| ## ATTINY45-20PU Alternates Showing results | Image | — | — | — | — |
| Peak Reflow Temperature (Cel) | — | 260 | 260 | 260 | NOT SPECIFIED |
| Time@Peak Reflow Temperature-Max (s) | — | 40 | 40 | 40 | NOT SPECIFIED |
| ## 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 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Why Look for Alternatives?
Finding alternatives for ATTINY45-20PU 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 ATTINY45-20PU 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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Request Alternatives for ATTINY45-20PUFAQ
What is equivalent to ATTINY45-20PU?
Known equivalents for ATTINY45-20PU include ATTINY45-20SU, ATTINY45V-10SU, ATtiny45-20SU. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of ATTINY45-20PU?
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 ATTINY45-20PU 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.