Microchip Technology AT32UC3B1256-AUR Microcontroller, Microprocessor, FPGA Modules
IC MCU 32BIT 256KB FLASH 48TQFP

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
AT32UC3B1256-AUR
Detailed Description
IC MCU 32BIT 256KB FLASH 48TQFP
Package
48-TQFP
Key Features
Package / Case: 48-TQFP; Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
AT32UC3B1256-AUR Datasheet
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Technical Specifications
Microchip Technology AT32UC3B1256-AUR Microcontroller, Microprocessor, FPGA Modules technical specifications.
General
RAM Size
32K x 8
Package / Case
48-TQFP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
1.65V ~ 3.6V
Lifecycle Status
Active
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O
28
Speed
60MHz
Core Processor
AVR
Alternate Parts Comparison (AT32UC3B1256-AUR vs AT32UC3B1128-AUT vs AT32UC3B164-AUT vs AVR64DA48T-I/PT)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 48-TQFP | 48-TQFP | 48-TQFP | 48-TQFP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supply Voltage | 1.65V ~ 3.6V | 1.65V ~ 3.6V | 1.65V ~ 3.6V | 1.8V ~ 5.5V |
| Core Processor | AVR | AVR | AVR | AVR |
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 8-Bit |
| RAM Size | 32K x 8 | 32K x 8 | 16K x 8 | 8K x 8 |
| Connectivity | I²C, IrDA, SPI, SSC, UART/USART, USB | I²C, IrDA, SPI, SSC, UART/USART, USB | I²C, IrDA, SPI, SSC, UART/USART, USB | I²C, SPI, UART/USART |
| Data Converters | A/D 6x10b | A/D 6x10b | A/D 6x10b | A/D 18x12b; D/A 1x10b |
| Number of I/O | 28 | 28 | 28 | 41 |
| Oscillator Type | Internal | Internal | Internal | Internal |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
This part is listed as a cross for
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