A-Star 32U4 Mini SV (ac02c)

Pololu item #: 3104
Brand: Pololu
Status: Discontinued 

This product has been discontinued.

This original version (ac02c) of the A-Star 32U4 Mini SV has been replaced by a newer version (ac02f) with an improved 5 V regulator that can deliver more current (up to 800 mA instead of 500 mA) and operates to 40 V instead of 36 V.

This original ac02c version of the A-Star 32U4 Mini SV is a programmable module based on the ATmega32U4 from Microchip (formerly Atmel) and featuring an on-board switching step-down regulator that allows it to be powered efficiently from a 5 V to 36 V supply. This product has been replaced by a newer ac02f version with an improved regulator that operates up to 40 V and can deliver more current.

Alternatives available with variations in these parameter(s): input voltage range Select variant…

 Description Specs (14) Pictures (11) Resources (24) FAQs (0) On the blog (6) 


Size: 0.7″ × 1.95″ × 0.23″1
Weight: 3.4 g2

General specifications

Processor: ATmega32U4 @ 16 MHz
RAM size: 2560 bytes
Program memory size: 32 Kbytes3
Motor channels: 0
User I/O lines: 26
Input voltage range: 5 V to 36 V (SV)
Minimum operating voltage: 5 V4
Maximum operating voltage: 36 V
Maximum output current: 500 mA5
Logic voltage: 5 V
Reverse voltage protection?: Y6
External programmer required?: N


Without included optional headers. This measurement includes the USB Micro-B connector, which extends 0.05″ past the edge of the PCB.
Without included optional headers.
Note that 4 KB of the MCU's 32 KB of flash memory is used by the pre-installed USB bootloader. All 32 KB is available when programming via the ISP header rather than the bootloader.
For light loads. The regulator's dropout voltage increases approximately linearly with the load, from a few millivolts at no load up to around 0.6 V at 500 mA.
Available current depends on input voltage, current consumed by the board, ambient conditions, and regulator topology. See product documentation and performance graphs for details.
On Bat+ (LV, SV) or Bat- (ULV).

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