Document Number: 001-55190 Rev. *L

Page 2 of 34

CYUSB302x

Contents

Functional Overview ........................................................ 3

USB Interface (U-Port) ................................................ 3

Mass-Storage Support (S-Port) ................................... 3

I2C Interface ................................................................ 3

UART Interface ............................................................ 3

I2S Interface ................................................................ 3

SPI Interface ................................................................ 3

Boot Options ................................................................ 4

Reset ........................................................................... 4

Clocking ....................................................................... 4

Power .......................................................................... 5

Configuration Fuse ...................................................... 7

Digital I/Os ................................................................... 7

EMI .............................................................................. 7

System Level ESD ...................................................... 7

Pinout for BGA .................................................................. 7

Pin Description for BGA .................................................. 8

Pinout for WLCSP ........................................................... 11

Pin Description for WLCSP ........................................... 12

AC Timing Parameters ................................................... 15

Storage Port Timing .................................................. 15

I2C Interface Timing .................................................. 18

Absolute Maximum Ratings .......................................... 23

Operating Conditions ..................................................... 23

DC Specifications ........................................................... 24

Reset Sequence .............................................................. 26

Package Diagrams .......................................................... 27

Ordering Information ...................................................... 28

Ordering Code Definitions ......................................... 28

Acronyms ........................................................................ 29

Document Conventions ................................................. 29

Units of Measure ....................................................... 29

Errata ............................................................................... 30

Document History Page ................................................. 32

Sales, Solutions, and Legal Information ...................... 34

Worldwide Sales and Design Support ....................... 34

Products .................................................................... 34

PSoC® Solutions ...................................................... 34

Cypress Developer Community ................................. 34

Technical Support ..................................................... 34