The high-performance, low-power 32-bit AVR RISC-based microcontroller combines 64KB flash memory, 32KB SRAM, full-speed (12 Mbps) USB Mini-host + device, and I2S. The MCU achieves 83 Dhrystone MIPS (DMIPS) at 60MHz and consumes only 23mA at 3.3 volts.

The microcontroller's Memory Protection Unit (MPU) and fast, flexible interrupt controller support the latest real-time operating systems. The Peripheral Direct Memory Access (PDMA) controller transfers data between peripherals and memories without processor involvement, drastically reducing processing overhead with large continuous data streams between MCU modules.

The power manager improves design flexibility and security: the on-chip brown-out detector monitors the power supply, the CPU is run by the on-chip RC oscillator or one of external oscillator sources, and the Real-Time Clock (RTC) and its associated timer track time.

Key Parameters

Parameter
Value

Flash (Kbytes):

128 Kbytes

Pin Count:

48

Max. Operating Frequency:

60 MHz

CPU:

32-bit AVR

# of Touch Channels:

32

Hardware QTouch Acquisition:

No

Max I/O Pins:

28

Ext Interrupts:

28

USB Transceiver:

1

USB Speed:

Full Speed

 

Ordering Codes

Ordering Code Package Speed Power Supply Operational Range Comment Samples
AT32UC3B1128-AUT TQFP MC 48 Industrial (A) (-40°C to 85°C) Request
AT32UC3B1128-Z1UR VQFN (Punched) PL 48 Industrial (A) (-40°C to 85°C) Request
AT32UC3B1128-Z1UT VQFN (Punched) PL 48 Industrial (A) (-40°C to 85°C) Request
AT32UC3B1128-AUR TQFP MC 48 Industrial (A) (-40°C to 85°C) Request