ATSAMD21E18A-AFTAlternatives & Equivalent Parts
About ATSAMD21E18A-AFT
ATSAMD21E18A-AFT 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 | ATSAMD21E18A-AFTSource | ATSAMD21E18A-AF | ATSAMD21E17L-AFT | ATSAMD21E18A-AU |
|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip | Microchip |
| Package Type | Quad Flat Packages | Quad Flat Packages | Quad Flat Packages | Quad Flat Packages |
| Pin Count | 32 | 32 | 32 | 32 |
| Temperature Range | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 85.0°C |
| Price | $3.2100 | $3.1400 | $2.2900 | $1.3500 |
| Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||
| Pbfree Code | Yes | Yes | — | Yes |
| Manufacturer Package Code | TQFP-32 | TQFP-32 | TQFP-32 | TQFP-32 |
| Factory Lead Time | 7 Weeks | 4 Weeks | 8 Weeks | 7 Weeks |
| YTEOL | 19 | 13 | 19 | 14 |
| Has ADC | YES | YES | YES | YES |
| Bit Size | 32 | 32 | 32 | 32 |
| Boundary Scan | YES | 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 | YES |
| Format | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT |
| Integrated Cache | YES | YES | YES | YES |
| JESD-30 Code | S-PQFP-G32 | S-PQFP-G32 | S-PQFP-G32 | S-PQFP-G32 |
| JESD-609 Code | e3 | — | e3 | e3 |
| Low Power Mode | YES | YES | YES | YES |
| Number of DMA Channels | 12 | 12 | 12 | 12 |
| Number of External Interrupts | 16 | 16 | 16 | 16 |
| Number of I/O Lines | 26 | 26 | 26 | 26 |
| Number of Serial I/Os | 6 | 4 | 4 | 6 |
| Number of Timers | 6 | 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 |
| Package Equivalence Code | TQFP32,.35SQ,32 | TQFP32,.35SQ,32 | TQFP32,.35SQ,32 | TQFP32,.35SQ,32 |
| Package Shape | SQUARE | SQUARE | SQUARE | SQUARE |
| Package Style | FLATPACK, THIN PROFILE | FLATPACK, THIN PROFILE | FLATPACK, THIN PROFILE | FLATPACK, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 | NOT SPECIFIED | 260 | 260 |
| RAM (bytes) | 32768 | 32768 | 16384 | 32768 |
| RAM (words) | 32768 | 32768 | 16384 | 32768 |
| ROM (words) | 262144 | 262144 | 131072 | 262144 |
| ROM Programmability | FLASH | FLASH | FLASH | FLASH |
| Screening Level | TS 16949 | TS 16949 | TS 16949 | TS 16949 |
| Speed | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Supply Current-Max | 7 mA | 92 mA | 4.7 mA | 7 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 | 1.62 V |
| Supply Voltage-Nom | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Surface Mount | YES | YES | YES | YES |
| Technology | CMOS | CMOS | CMOS | CMOS |
| Temperature Grade | AUTOMOTIVE | AUTOMOTIVE | AUTOMOTIVE | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) | — | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 0.8 mm | 0.8 mm | 0.8 mm | 0.8 mm |
| Terminal Position | QUAD | QUAD | QUAD | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 | NOT SPECIFIED | 30 | 30 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC |
| Qualification Status | — | — | — | Not Qualified |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Quick Links
RISC Microcontroller, 32-Bit, FLASH, Cortex-M0+ CPU, 48MHz, CMOS, PQFP32
Why Look for Alternatives?
Finding alternatives for ATSAMD21E18A-AFT 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 ATSAMD21E18A-AFT 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 ATSAMD21E18A-AFT?
Known equivalents for ATSAMD21E18A-AFT include ATSAMD21E18A-AF, ATSAMD21E17L-AFT, ATSAMD21E18A-AU. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of ATSAMD21E18A-AFT?
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 ATSAMD21E18A-AFT 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.