Data Sheet

5. A-Star 32U4 Prime

A-Star 32U4 Prime LV microSD.

A-Star 32U4 Prime SV microSD.

5.1. A-Star 32U4 Prime configurations

The A-Star 32U4 Prime LV (blue solder mask, 2.7 V to 11.8 V operating voltage range) and SV (green solder mask,

5 V to 36 V operating voltage range) are each available in five different versions, allowing you to choose the right

amount of customizability and features for your application. (The pictures here show the LV board, but they also

reflect the corresponding SV configurations.)

A-Star 32U4 Prime LV (SMT Components Only)

A-Star 32U4 Prime SV (SMT Components Only)

This version comes with all surface-mount components soldered to the board

(including the USB connector, pushbuttons, and power switch), except for the

microSD card connector and level shifters, which are not populated. It comes with no

headers, DC barrel jack, or buzzer.

A-Star 32U4 Prime LV microSD (SMT Components Only)

A-Star 32U4 Prime SV microSD (SMT Components Only)

This version adds the microSD card connector and level shifters, but is otherwise

identical to the preceding version.

A-Star 32U4 Prime LV

A-Star 32U4 Prime SV

This version comes with all surface-mount components except for the microSD card

connector and level shifters. These through-hole parts are also soldered in:

• four standard Arduino female headers (one 1×6, two 1×8, one 1×10) on the

outermost pins, matching an Arduino Leonardo or Uno R3

• 6-pin ISP header (2×3 male)

• DC barrel jack

• buzzer

• 1×2 low-profile male header for buzzer jumper (shorting block included)

5. A-Star 32U4 Prime Page 18 of 47