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.

Specification Comparison

ParameterAT32UC3B1256-AUTSourceDAC8820ICDBAT32UC3B164-AUTAT32UC3B1128-AUT
ManufacturerMicrochipTexas InstrumentsMicrochipMicrochip
Package TypeQuad Flat PackagesSmall Outline PackagesQuad Flat PackagesQuad Flat Packages
Pin Count48284848
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
Price$6.9000$13.4400$4.7300$5.3333
Electrical Parameters
Pbfree CodeYesYesYesYes
Manufacturer Package CodeTQFP-48TQFP-48TQFP-48
Factory Lead Time15 Weeks15 Weeks15 Weeks
YTEOL14151919
Has ADCYESYESYES
Additional FeatureALSO REQUIRES 3.3 V I/O SUPPLYALSO REQUIRES 3.3 V I/O SUPPLYALSO REQUIRES 3.3 V I/O SUPPLY
Bit Size323232
Boundary ScanNOYESYES
CPU FamilyAVR RISCAVR RISCAVR RISC
Clock Frequency-Max50 MHz50 MHz50 MHz
DAC ChannelsNONONO
DMA ChannelsYESYESYES
FormatFLOATING-POINTFLOATING-POINTFLOATING-POINT
Integrated CacheYESYESYES
JESD-30 CodeS-PQFP-G48R-PDSO-G28S-PQFP-G48S-PQFP-G48
JESD-609 Codee3e4e3e3
Low Power ModeYESYESYES
Number of DMA Channels777
Number of External Interrupts666
Number of I/O Lines282828
Number of Serial I/Os282828
Number of Timers333
On Chip Program ROM Width888
PWM ChannelsYESYESYES
Package Body MaterialPLASTIC/EPOXYPLASTIC/EPOXYPLASTIC/EPOXYPLASTIC/EPOXY
Package Equivalence CodeTQFP48,.35SQSSOP28,.3TQFP48,.35SQTQFP48,.35SQ
Package ShapeSQUARERECTANGULARSQUARESQUARE
Package StyleFLATPACK, THIN PROFILE, FINE PITCHSMALL OUTLINE, SHRINK PITCHFLATPACK, THIN PROFILE, FINE PITCHFLATPACK, THIN PROFILE, FINE PITCH
Qualification StatusNot QualifiedNot QualifiedNot QualifiedNot Qualified
RAM (bytes)327681638432768
ROM (words)26214465536131072
ROM ProgrammabilityFLASHFLASHFLASH
Speed60 MHz60 MHz60 MHz
Supply Voltage-Max1.95 V1.95 V1.95 V
Supply Voltage-Min1.8 V1.8 V1.8 V
Supply Voltage-Nom1.8 V5 V1.8 V1.8 V
Surface MountYESYESYESYES
TechnologyCMOSCMOSCMOS
Temperature GradeINDUSTRIALINDUSTRIALINDUSTRIALINDUSTRIAL
Terminal FinishMatte Tin (Sn)Nickel/Palladium/Gold (Ni/Pd/Au)Matte Tin (Sn)Matte Tin (Sn)
Terminal FormGULL WINGGULL WINGGULL WINGGULL WING
Terminal Pitch0.5 mm0.65 mm0.5 mm0.5 mm
Terminal PositionQUADDUALQUADQUAD
uPs/uCs/Peripheral ICs TypeMICROCONTROLLER, RISCMICROCONTROLLER, RISCMICROCONTROLLER, RISC
## AT32UC3B1256-AUT Alternates Showing resultsImage
Converter TypeD/A CONVERTER
Input Bit CodeBINARY
Input FormatPARALLEL, WORD
Linearity Error-Max (EL)0.0015%
Number of Bits16
Number of Functions1
Peak Reflow Temperature (Cel)260
Sample Rate2 MHz
Settling Time-Max0.5 µs
Settling Time-Nom (tstl)0.5 µs
Supply Current-Max0.005 mA
Time@Peak Reflow Temperature-Max (s)30
## DAC8820ICDB Alternates Showing resultsImage

Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.

Quick Links

AT32UC3B164-AUTby Microchip Technology Inc

RISC Microcontroller, 32-Bit, FLASH, AVR RISC CPU, 60MHz, CMOS, PQFP48

AT32UC3B1128-AUTby Microchip Technology Inc

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, AT32UC3B164-AUT, AT32UC3B1128-AUT. 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.