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A-Star 32U4 Mini SV

Pololu item #: 3145
Brand: Pololu supply outlook
Status: Active and Preferred 
RoHS 3 compliant


Price break Unit price (US$)
1 24.95
5 22.95
25 21.12
100 19.43


backorders allowed

The A-Star 32U4 Mini SV is a programmable module based on the ATmega32U4 from Microchip (formerly Atmel). Unlike competing products, it has an on-board switching step-down regulator that allows it to be powered efficiently from a 5 V to 40 V supply. This compact 1.9″ × 0.7″ board breaks out all 26 of the microcontroller’s I/O pins (of which 7 can be used as PWM outputs and 12 as analog inputs), and loading programs is made easier by a Micro-USB interface and a preloaded Arduino-compatible bootloader.

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

 Description Specs (16) Pictures (10) Resources (30) FAQs (0) On the blog (1) 

Dimensions

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 40 V (SV)
Minimum operating voltage: 5 V4
Maximum operating voltage: 40 V
Maximum output current: 800 mA5
Logic voltage: 5 V
Reverse voltage protection?: Y6
External programmer required?: N

Identifying markings

PCB dev codes: ac02f
Other PCB markings: 0J11184

Notes:

1
Without included optional headers. This measurement includes the USB Micro-B connector, which extends 0.05″ past the edge of the PCB.
2
Without included optional headers.
3
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.
4
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.
5
Available current depends on input voltage, current consumed by the board, ambient conditions, and regulator topology. See product documentation and performance graphs for details.
6
On Bat+ (LV, SV) or Bat- (ULV).

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