BK3254 Datasheet

v 0.5

© 2011 Beken Corporation

Proprietary and Confidential

Page 3 of 17

Contents

1.

 

General Description ................................................................................................................ 4

 

1.1.

 

Features .......................................................................................................................... 4

 

1.2.

 

Applications ................................................................................................................... 4

 

2.

 

Pin Information....................................................................................................................... 5

 

3.

 

Functional Description.......................................................................................................... 10

 

3.1.

 

GPIO ............................................................................................................................ 10

 

3.2.

 

PWM Timer and Watch Dog Timer............................................................................. 11

 

3.3.

 

Power Management...................................................................................................... 11

 

3.4.

 

MCU ............................................................................................................................ 11

 

3.5.

 

I2C and UART Interface.............................................................................................. 11

 

3.6.

 

FLASH Access Interface ............................................................................................. 11

 

3.7.

 

SPI................................................................................................................................ 11

 

3.8.

 

SAR ADC and LED..................................................................................................... 12

 

3.9.

 

Audio Peripheral .......................................................................................................... 12

 

3.10.

 

USB.............................................................................................................................. 12

 

3.11.

 

Bluetooth and FM ........................................................................................................ 12

 

4.

 

Electrical Characteristics ...................................................................................................... 12

 

4.1.

 

Absolute Maximum Ratings ........................................................................................ 12

 

4.2.

 

Recommended Operating Conditions .......................................................................... 12

 

4.3.

 

Typical Power Consumption........................................................................................ 13

 

4.4.

 

Bluetooth Characteristics ............................................................................................. 13

 

4.5.

 

Audio Characteristics ................................................................................................... 13

 

5.

 

Application Schematic.......................................................................................................... 13

 

6.

 

About the Qualification ........................................................................................................ 13

 

7.

 

Package Information ............................................................................................................. 14

 

7.1.

 

QFN48.......................................................................................................................... 14

 

7.2.

 

SSOP24 ........................................................................................................................ 15

 

7.3.

 

SSOP28 ........................................................................................................................ 16

 

8.

 

Ordering Information............................................................................................................ 17