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SM3257EN Write protected USB flash drive USB2.0

Overview

introduce

Note: Flash verification has not been posted yet (mainly due to laziness)

Verify disk recognition and master control

IMG_1420(20210913-224559).JPG

USB2.0 U disk based on SM3257 main control chip, with write protection switch

Supports up to 1CH8CE, with CE jumper, VCCQ supports 3.3V and 1.8V

Design Files

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Update:2025-06-23 06:15:04

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