AT32UC3B1256-AUTAlternatives & Equivalent Parts
About AT32UC3B1256-AUT
AT32UC3B1256-AUT 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 | AT32UC3B1256-AUTSource | DAC8820ICDB | MCR100JZHJ000 | VNHD7012AYTR | AT32UC3B164-AUT | AT32UC3B1128-AUT |
|---|---|---|---|---|---|---|
| Manufacturer | Microchip | Texas Instruments | ROHM Semiconductor | STMicroelectronics | Microchip | Microchip |
| Package Type | Quad Flat Packages | Small Outline Packages | Resistor Chip | Small Outline Packages | Quad Flat Packages | Quad Flat Packages |
| Pin Count | 48 | 28 | 2 | 37 | 48 | 48 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -55.0°C ~ 125.0°C | — | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $6.9000 | $13.4400 | $0.0056 | $2.1182 | $4.7300 | $5.3333 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | OBSOLETE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||||
| Pbfree Code | Yes | Yes | Yes | — | Yes | Yes |
| Manufacturer Package Code | TQFP-48 | — | — | — | TQFP-48 | TQFP-48 |
| Factory Lead Time | 15 Weeks | — | — | 26 Weeks | 15 Weeks | 15 Weeks |
| YTEOL | 14 | 15 | 0 | 8.4 | 19 | 19 |
| Has ADC | YES | — | — | — | YES | YES |
| Additional Feature | ALSO REQUIRES 3.3 V I/O SUPPLY | — | RATED CURRENT: 4A | — | ALSO REQUIRES 3.3 V I/O SUPPLY | ALSO REQUIRES 3.3 V I/O SUPPLY |
| Bit Size | 32 | — | — | — | 32 | 32 |
| Boundary Scan | NO | — | — | — | YES | YES |
| CPU Family | AVR RISC | — | — | — | AVR RISC | AVR RISC |
| Clock Frequency-Max | 50 MHz | — | — | — | 50 MHz | 50 MHz |
| DAC Channels | NO | — | — | — | NO | NO |
| DMA Channels | YES | — | — | — | YES | YES |
| Format | FLOATING-POINT | — | — | — | FLOATING-POINT | FLOATING-POINT |
| Integrated Cache | YES | — | — | — | YES | YES |
| JESD-30 Code | S-PQFP-G48 | R-PDSO-G28 | — | R-PDSO-G36 | S-PQFP-G48 | S-PQFP-G48 |
| JESD-609 Code | e3 | e4 | e3 | e3 | e3 | e3 |
| Low Power Mode | YES | — | — | — | YES | YES |
| Number of DMA Channels | 7 | — | — | — | 7 | 7 |
| Number of External Interrupts | 6 | — | — | — | 6 | 6 |
| Number of I/O Lines | 28 | — | — | — | 28 | 28 |
| Number of Serial I/Os | 28 | — | — | — | 28 | 28 |
| Number of Timers | 3 | — | — | — | 3 | 3 |
| On Chip Program ROM Width | 8 | — | — | — | 8 | 8 |
| PWM Channels | YES | — | — | — | YES | YES |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP48,.35SQ | SSOP28,.3 | — | SSOP36,.4,20 | TQFP48,.35SQ | TQFP48,.35SQ |
| Package Shape | SQUARE | RECTANGULAR | — | RECTANGULAR | SQUARE | SQUARE |
| Package Style | FLATPACK, THIN PROFILE, FINE PITCH | SMALL OUTLINE, SHRINK PITCH | SMT | SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH | FLATPACK, THIN PROFILE, FINE PITCH | FLATPACK, THIN PROFILE, FINE PITCH |
| Qualification Status | Not Qualified | Not Qualified | — | — | Not Qualified | Not Qualified |
| RAM (bytes) | 32768 | — | — | — | 16384 | 32768 |
| ROM (words) | 262144 | — | — | — | 65536 | 131072 |
| ROM Programmability | FLASH | — | — | — | FLASH | FLASH |
| Speed | 60 MHz | — | — | — | 60 MHz | 60 MHz |
| Supply Voltage-Max | 1.95 V | — | — | — | 1.95 V | 1.95 V |
| Supply Voltage-Min | 1.8 V | — | — | — | 1.8 V | 1.8 V |
| Supply Voltage-Nom | 1.8 V | 5 V | — | — | 1.8 V | 1.8 V |
| Surface Mount | YES | YES | YES | YES | YES | YES |
| Technology | CMOS | — | METAL GLAZE/THICK FILM | — | CMOS | CMOS |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | — | — | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) | Nickel/Palladium/Gold (Ni/Pd/Au) | Tin (Sn) - with Nickel (Ni) barrier | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | — | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 0.5 mm | 0.65 mm | — | 0.5 mm | 0.5 mm | 0.5 mm |
| Terminal Position | QUAD | DUAL | — | DUAL | QUAD | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | — | — | — | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC |
| ## AT32UC3B1256-AUT Alternates Showing results | Image | — | — | — | — | — |
| Converter Type | — | D/A CONVERTER | — | — | — | — |
| Input Bit Code | — | BINARY | — | — | — | — |
| Input Format | — | PARALLEL, WORD | — | — | — | — |
| Linearity Error-Max (EL) | — | 0.0015% | — | — | — | — |
| Number of Bits | — | 16 | — | — | — | — |
| Number of Functions | — | 1 | — | 1 | — | — |
| Peak Reflow Temperature (Cel) | — | 260 | — | 260 | — | — |
| Sample Rate | — | 2 MHz | — | — | — | — |
| Settling Time-Max | — | 0.5 µs | — | — | — | — |
| Settling Time-Nom (tstl) | — | 0.5 µs | — | — | — | — |
| Supply Current-Max | — | 0.005 mA | — | — | — | — |
| Time@Peak Reflow Temperature-Max (s) | — | 30 | — | — | — | — |
| ## DAC8820ICDB Alternates Showing results | — | Image | — | — | — | — |
| Reach Compliance Code | — | — | Compliant | — | — | — |
| Construction | — | — | Rectangular | — | — | — |
| Mounting Feature | — | — | SURFACE MOUNT | — | — | — |
| Package Height | — | — | 0.55 mm | — | — | — |
| Package Length | — | — | 6.3 mm | — | — | — |
| Package Width | — | — | 3.2 mm | — | — | — |
| Packing Method | — | — | TR, EMBOSSED, 7 INCH | — | — | — |
| Rated Power Dissipation (P) | — | — | 1 W | — | — | — |
| Rated Temperature | — | — | 70 °C | — | — | — |
| Resistor Type | — | — | JUMPER | — | — | — |
| Size Code | — | — | 2512 | — | — | — |
| Terminal Shape | — | — | WRAPAROUND | — | — | — |
| Date Of Intro | — | — | — | 2018-10-29 | — | — |
| Analog IC - Other Type | — | — | — | HALF BRIDGE BRUSH DC MOTOR CONTROLLER | — | — |
| Output Current-Max | — | — | — | 38 A | — | — |
| Screening Level | — | — | — | AEC-Q100 | — | — |
| Supply Current-Max (Isup) | — | — | — | 18 mA | — | — |
| Supply Voltage-Max (Vsup) | — | — | — | 28 V | — | — |
| Supply Voltage-Min (Vsup) | — | — | — | 4 V | — | — |
| Supply Voltage-Nom (Vsup) | — | — | — | 7 V | — | — |
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 5 alternatives for AT32UC3B1256-AUT — response within 24 hours.
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RISC Microcontroller, 32-Bit, FLASH, AVR RISC CPU, 60MHz, CMOS, PQFP48
RISC Microcontroller, 32-Bit, FLASH, AVR RISC CPU, 60MHz, CMOS, PQFP48
Why Look for Alternatives?
Finding alternatives for AT32UC3B1256-AUT 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 AT32UC3B1256-AUT 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 AT32UC3B1256-AUT?
Known equivalents for AT32UC3B1256-AUT include DAC8820ICDB, MCR100JZHJ000, VNHD7012AYTR. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of AT32UC3B1256-AUT?
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 AT32UC3B1256-AUT 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.