ATSAMD21G18A-AUAlternatives & Equivalent Parts
About ATSAMD21G18A-AU
ATSAMD21G18A-AU 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.
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Specification Comparison
| Parameter | ATSAMD21G18A-AUSource | ATSAMD21G18A-AUT | ATSAMD21G18A-AFT | B0540WS-7 | ADS124S08IPBS | ATECC508A-SSHDA-B | BQ24195LRGET | SN74AVC4T774PWR | ATSAMD20G16A-AU |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip | Diodes Inc. | Texas Instruments | Microchip | Texas Instruments | Texas Instruments | Microchip |
| Package Type | Quad Flat Packages | Quad Flat Packages | Quad Flat Packages | Small Outline Diode | — | Small Outline Packages | Quad Flat No-Lead | — | Quad Flat Packages |
| Pin Count | 48 | 48 | 48 | 2 | — | 8 | 25 | — | 48 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | — | — | -40.0°C ~ 85.0°C | — | -40.0°C ~ 85.0°C |
| Price | $1.3000 | $1.5900 | $3.8300 | $0.0630 | $4.5795 | $0.7799 | $2.0200 | $0.2925 | $1.8700 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | — | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | |||||||||
| Pbfree Code | Yes | Yes | Yes | Yes | — | Yes | Yes | — | Yes |
| Manufacturer Package Code | TQFP-48 | TQFP-48 | TQFP-48 | — | — | SOIC-8 | — | — | TQFP-48 |
| Factory Lead Time | 4 Weeks | 4 Weeks | 6 Weeks | — | — | 6 Weeks | — | — | 7 Weeks |
| YTEOL | 14 | 14 | 19 | 6.08 | — | 3 | 15 | — | 14 |
| Has ADC | YES | YES | YES | — | — | — | — | — | YES |
| Bit Size | 32 | 32 | 32 | — | — | — | — | — | 32 |
| Boundary Scan | NO | NO | YES | — | — | — | — | — | YES |
| CPU Family | Cortex-M0+ | Cortex-M0+ | Cortex-M0+ | — | — | — | — | — | CORTEX-M0 |
| Clock Frequency-Max | 32 MHz | 32 MHz | 32 MHz | — | — | — | — | — | 32 MHz |
| DAC Channels | YES | YES | YES | — | — | — | — | — | YES |
| DMA Channels | YES | YES | YES | — | — | — | — | — | NO |
| Format | FIXED POINT | FIXED POINT | FIXED POINT | — | — | — | — | — | FIXED POINT |
| Integrated Cache | YES | YES | YES | — | — | — | — | — | YES |
| JESD-30 Code | S-PQFP-G48 | S-PQFP-G48 | S-PQFP-G48 | R-PDSO-G2 | — | — | S-PQCC-N24 | — | S-PQFP-G48 |
| JESD-609 Code | e3 | e3 | e3 | e3 | — | — | e4 | — | e3 |
| Low Power Mode | YES | YES | YES | — | — | — | — | — | YES |
| Number of DMA Channels | 12 | 12 | 12 | — | — | — | — | — | — |
| Number of External Interrupts | 16 | 16 | 16 | — | — | — | — | — | 16 |
| Number of I/O Lines | 38 | 38 | 38 | — | — | — | — | — | 38 |
| Number of Serial I/Os | 6 | 6 | 8 | — | — | — | — | — | — |
| Number of Timers | 8 | 8 | 6 | — | — | — | — | — | 6 |
| 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 | — | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP48,.35SQ | TQFP48,.35SQ | TQFP48,.35SQ | — | — | — | LCC24,.16SQ,20 | — | TQFP48,.35SQ |
| Package Shape | SQUARE | SQUARE | SQUARE | RECTANGULAR | — | — | SQUARE | — | SQUARE |
| Package Style | FLATPACK, THIN PROFILE, FINE PITCH | FLATPACK, THIN PROFILE, FINE PITCH | FLATPACK, THIN PROFILE, FINE PITCH | SMALL OUTLINE | — | — | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | — | FLATPACK, THIN PROFILE, FINE PITCH |
| Qualification Status | Not Qualified | Not Qualified | — | Not Qualified | — | — | Not Qualified | — | Not Qualified |
| RAM (bytes) | 32768 | 32768 | 32768 | — | — | — | — | — | 8192 |
| RAM (words) | 32768 | 32768 | 32768 | — | — | — | — | — | 8192 |
| ROM (words) | 262144 | 262144 | 262144 | — | — | — | — | — | 65536 |
| ROM Programmability | FLASH | FLASH | FLASH | — | — | — | — | — | FLASH |
| Screening Level | TS 16949 | TS 16949 | TS 16949 | — | — | — | — | — | — |
| Speed | 48 MHz | 48 MHz | 48 MHz | — | — | — | — | — | 48 MHz |
| Supply Current-Max | 92 mA | 92 mA | 7 mA | — | — | — | — | — | 92 mA |
| Supply Voltage-Max | 3.63 V | 3.63 V | 3.63 V | — | — | — | — | — | 3.63 V |
| Supply Voltage-Min | 1.62 V | 1.62 V | 1.62 V | — | — | — | — | — | 3.3 V |
| Supply Voltage-Nom | 3.3 V | 3.3 V | 3.3 V | — | — | — | — | — | 3.3 V |
| Surface Mount | YES | YES | YES | YES | — | — | YES | — | YES |
| Technology | CMOS | CMOS | CMOS | SCHOTTKY | — | — | — | — | CMOS |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | AUTOMOTIVE | — | — | — | INDUSTRIAL | — | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | MATTE TIN | — | — | Nickel/Palladium/Gold (Ni/Pd/Au) | — | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING | — | — | NO LEAD | — | GULL WING |
| Terminal Pitch | 0.5 mm | 0.5 mm | 0.5 mm | — | — | — | 0.5 mm | — | 0.5 mm |
| Terminal Position | QUAD | QUAD | QUAD | DUAL | — | — | QUAD | — | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | — | — | — | — | — | MICROCONTROLLER, RISC |
| ## ATSAMD21G18A-AU Alternates Showing results | Image | — | — | — | — | — | — | — | — |
| ## ATSAMD21G18A-AUT Alternates Showing results | — | Image | — | — | — | — | — | — | — |
| ## ATSAMD21G18A-AFT Alternates Showing results | — | — | Image | — | — | — | — | — | — |
| Additional Feature | — | — | — | UL RECOGNIZED | — | — | — | — | — |
| Application | — | — | — | GENERAL PURPOSE | — | — | — | — | — |
| Configuration | — | — | — | SINGLE | — | — | — | — | — |
| Diode Element Material | — | — | — | SILICON | — | — | — | — | — |
| Diode Type | — | — | — | RECTIFIER DIODE | — | — | — | — | — |
| Forward Voltage-Max (VF) | — | — | — | 0.3 V | — | — | — | — | — |
| Non-rep Pk Forward Current-Max | — | — | — | 3 A | — | — | — | — | — |
| Number of Elements | — | — | — | 1 | — | — | — | — | — |
| Number of Phases | — | — | — | 1 | — | — | — | — | — |
| Output Current-Max | — | — | — | 0.5 A | — | — | — | — | — |
| Peak Reflow Temperature (Cel) | — | — | — | 260 | — | — | 260 | — | 260 |
| Power Dissipation-Max | — | — | — | 0.235 W | — | — | — | — | — |
| Reference Standard | — | — | — | UL RECOGNIZED | — | — | — | — | — |
| Rep Pk Reverse Voltage-Max | — | — | — | 40 V | — | — | — | — | — |
| Time@Peak Reflow Temperature-Max (s) | — | — | — | 30 | — | — | 30 | — | 30 |
| ## ATECC508A-SSHDA-B Alternates Showing results | — | — | — | — | — | Image | — | — | — |
| Adjustable Threshold | — | — | — | — | — | — | NO | — | — |
| Analog IC - Other Type | — | — | — | — | — | — | LINEAR BATTERY CHARGER | — | — |
| Input Voltage-Max | — | — | — | — | — | — | 17 V | — | — |
| Input Voltage-Min | — | — | — | — | — | — | 3.9 V | — | — |
| Number of Channels | — | — | — | — | — | — | 1 | — | — |
| Number of Functions | — | — | — | — | — | — | 1 | — | — |
| Supply Current-Max (Isup) | — | — | — | — | — | — | 2.5 mA | — | — |
| Supply Voltage-Max (Vsup) | — | — | — | — | — | — | 17 V | — | — |
| Supply Voltage-Min (Vsup) | — | — | — | — | — | — | 3.9 V | — | — |
| Switcher Configuration | — | — | — | — | — | — | BUCK | — | — |
| Threshold Voltage-Nom | — | — | — | — | — | — | +18V | — | — |
| ## BQ24195LRGET 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 8 alternatives for ATSAMD21G18A-AU — response within 24 hours.
Quick Links
Microchip Technology Inc 48TQFP IND TEMP, GREEN,1.6-3.6V,48MHz
Microchip Technology Inc 48TQFP 125C, GREEN,1.6-3.6V,48MHz
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Why Look for Alternatives?
Finding alternatives for ATSAMD21G18A-AU 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 ATSAMD21G18A-AU 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 ATSAMD21G18A-AU?
Known equivalents for ATSAMD21G18A-AU include ATSAMD21G18A-AUT, ATSAMD21G18A-AFT, B0540WS-7. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of ATSAMD21G18A-AU?
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 ATSAMD21G18A-AU 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.