Datasheet

TUSB9261
www.ti.com SLLSE67F –MARCH 2011–REVISED JULY 2013
Contents
1 MAIN FEATURES ................................................................................................................ 5
1.1 TUSB9261 Features ........................................................................................................ 5
1.2 Target Applications ......................................................................................................... 5
2 RELATED DOCUMENTS ....................................................................................................... 6
2.1 TUSB9261 Related Documentation ...................................................................................... 6
3 INTRODUCTION .................................................................................................................. 7
3.1 System Overview ........................................................................................................... 7
3.2 Device Block Diagram ...................................................................................................... 7
4 OPERATION ....................................................................................................................... 9
4.1 General Functionality ....................................................................................................... 9
4.2 Firmware Support ......................................................................................................... 10
4.3 GPIO/PWM LED Designations .......................................................................................... 10
4.4 Power Up and Reset Sequence ......................................................................................... 11
5 SIGNAL DESCRIPTIONS ..................................................................................................... 12
6 CLOCK CONNECTIONS ...................................................................................................... 17
6.1 Clock Source Requirements ............................................................................................. 17
6.2 Clock Source Selection Guide ........................................................................................... 17
6.3 Oscillator .................................................................................................................... 18
6.4 Crystal ...................................................................................................................... 18
7 ELECTRICAL SPECIFICATIONS .......................................................................................... 19
7.1 Absolute Maximum Ratings .............................................................................................. 19
7.2 Thermal Information ....................................................................................................... 19
7.3 Recommended Operating Conditions .................................................................................. 19
7.4 DC Electrical Characteristics for 3.3-V Digital I/O ..................................................................... 20
8 POWER CONSUMPTION ..................................................................................................... 21
2 Contents Copyright © 2011–2013, Texas Instruments Incorporated