ATMEGA48-20AUAlternatives & Equivalent Parts
About ATMEGA48-20AU
ATMEGA48-20AU is a Integrated Circuit component manufactured by Microchip. It comes in a Quad Flat Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | ATMEGA48-20AUSource | SN74HCS32DR | ATMEGA48P-20AU | ATMEGA48A-AU | ATMEGA48PA-AU |
|---|---|---|---|---|---|
| Manufacturer | Microchip | Texas Instruments | Microchip | Microchip | Microchip |
| Package Type | Quad Flat Packages | Small Outline Packages | Quad Flat Packages | Quad Flat Packages | Quad Flat Packages |
| Pin Count | 32 | 14 | 32 | 32 | 32 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $1.7400 | $0.1602 | $1.8300 | $1.4600 | $0.9110 |
| Electrical Parameters | |||||
| Pbfree Code | Yes | Yes | Yes | Yes | Yes |
| Manufacturer Package Code | TQFP-32 | — | TQFP-32 | TQFP-32 | TQFP-32 |
| Factory Lead Time | 7 Weeks | — | 8 Weeks | 6 Weeks | 7 Weeks |
| YTEOL | 14 | 15 | 14 | 14 | 14 |
| Has ADC | YES | — | YES | YES | YES |
| 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 | 20 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 | S-PQFP-G32 | R-PDSO-G14 | S-PQFP-G32 | S-PQFP-G32 | S-PQFP-G32 |
| JESD-609 Code | e3 | e3 | e3 | e3 | e3 |
| Low Power Mode | YES | — | YES | YES | YES |
| Number of External Interrupts | 2 | — | 2 | 2 | 2 |
| Number of I/O Lines | 23 | — | 23 | 23 | 23 |
| Number of Serial I/Os | 1 | — | 1 | 1 | 1 |
| Number of Timers | 3 | — | 3 | 3 | 3 |
| 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 | TQFP32,.35SQ,32 | SOP14,.24 | TQFP32,.35SQ,32 | TQFP32,.35SQ,32 | QFP32,.35SQ,32 |
| Package Shape | SQUARE | RECTANGULAR | SQUARE | SQUARE | SQUARE |
| Package Style | FLATPACK, THIN PROFILE | SMALL OUTLINE | FLATPACK, THIN PROFILE | FLATPACK, THIN PROFILE | FLATPACK, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | — | — |
| Qualification Status | Not Qualified | — | Not Qualified | Not Qualified | Not Qualified |
| RAM (bytes) | 512 | — | 512 | 512 | 512 |
| RAM (words) | 512 | — | — | 512 | 512 |
| ROM (words) | 4096 | — | 4096 | 4096 | 4096 |
| ROM Programmability | FLASH | — | FLASH | FLASH | FLASH |
| Speed | 20 MHz | — | 20 MHz | 20 MHz | 20 MHz |
| Supply Current-Max | 12 mA | — | 9 mA | 12 mA | 2.7 mA |
| Supply Voltage-Max | 5.5 V | — | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage-Min | 3 V | — | 4.5 V | 5 V | 5 V |
| Supply Voltage-Nom | 3 V | — | 5 V | 5 V | 5 V |
| Surface Mount | YES | YES | YES | YES | YES |
| Technology | CMOS | CMOS | CMOS | CMOS | CMOS |
| Temperature Grade | INDUSTRIAL | AUTOMOTIVE | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 0.8 mm | 1.27 mm | 0.8 mm | 0.8 mm | 0.8 mm |
| Terminal Position | QUAD | DUAL | QUAD | QUAD | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 | 30 | 40 | — | — |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | — | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC |
| ## ATMEGA48-20AU Alternates Showing results | Image | — | — | — | — |
| Date Of Intro | — | 2020-05-22 | — | — | — |
| Family | — | HC/UH | — | — | — |
| Load Capacitance (CL) | — | 50 pF | — | — | — |
| Logic IC Type | — | OR GATE | — | — | — |
| Max I(ol) | — | 0.0078 A | — | — | — |
| Number of Functions | — | 4 | — | — | — |
| Number of Inputs | — | 2 | — | — | — |
| Packing Method | — | TR | — | — | — |
| Power Supply Current-Max (ICC) | — | 0.002 mA | — | — | — |
| Propagation Delay (tpd) | — | 36 ns | — | — | — |
| Schmitt Trigger | — | YES | — | — | — |
| Supply Voltage-Max (Vsup) | — | 6 V | — | — | — |
| Supply Voltage-Min (Vsup) | — | 2 V | — | — | — |
| Supply Voltage-Nom (Vsup) | — | 5 V | — | — | — |
| ## SN74HCS32DR Alternates Showing results | — | Image | — | — | — |
| Additional Feature | — | — | OPERATES AT 2.7 V MINIMUM SUPPLY AT 10 MHZ | IT ALSO OPERATES 1.8V AT 4 MHZ | IT ALSO OPERATES 1.8V AT 4 MHZ |
| Screening Level | — | — | TS 16949 | — | — |
| ## ATMEGA48PA-AU Alternates Showing results | — | — | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
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RISC Microcontroller, 8-Bit, FLASH, AVR RISC CPU, 20MHz, CMOS, PQFP32
Why Look for Alternatives?
Finding alternatives for ATMEGA48-20AU 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 ATMEGA48-20AU 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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What is equivalent to ATMEGA48-20AU?
Known equivalents for ATMEGA48-20AU include SN74HCS32DR, ATMEGA48P-20AU, ATMEGA48A-AU. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of ATMEGA48-20AU?
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 ATMEGA48-20AU 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.