BK3254 Datasheet v 0.2
© 2011 Beken Corporation Proprietary and Confidential Page 3 of 15
Contents
1. General Description ................................................................................................................ 4
1.1. Features .......................................................................................................................... 4
1.2. Applications ................................................................................................................... 4
2. Pin Information ....................................................................................................................... 5
3. Functional Description ............................................................................................................ 7
3.1. GPIO .............................................................................................................................. 7
3.2. PWM Timer and Watch Dog Timer............................................................................... 8
3.3. Power Management ........................................................................................................ 8
3.4. MCU .............................................................................................................................. 8
3.5. I2C and UART Interface ................................................................................................ 9
3.6. FLASH Access Interface ............................................................................................... 9
3.7. SPI .................................................................................................................................. 9
3.8. SAR ADC and LED ....................................................................................................... 9
3.9. Audio Peripheral ............................................................................................................ 9
3.10. USB ................................................................................................................................ 9
3.11. Bluetooth and FM .......................................................................................................... 9
4. Electrical Characteristics ...................................................................................................... 10
4.1. Absolute Maximum Ratings ........................................................................................ 10
4.2. Recommended Operating Conditions .......................................................................... 10
4.3. Typical Power Consumption ........................................................................................ 10
4.4. Bluetooth Characteristics ............................................................................................. 10
4.5. Audio Characteristics ................................................................................................... 10
5. Application Schematic .......................................................................................................... 11
6. About the Qualification ........................................................................................................ 11
7. Package Information ............................................................................................................. 12
7.1. QFN32 .......................................................................................................................... 12
7.2. SSOP24 ........................................................................................................................ 13
7.3. SSOP28 ........................................................................................................................ 14
8. Ordering Information ............................................................................................................ 15