A2639B Overview
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A2639B Key Features
- 3 PIN ASSIGNMENT
- 3 PIN DESCRIPTION
- 4 FUNCTION DEFINITION
- 4 5.1 USB & PS/2 PLUG AND PLAY FUNCTION
- 4 5.1.1. Power-On-Reset function
- 4 5.1.2. Power-down-set function
- 4 5.2 DE-BOUNCE CIRCUITS
- 4 5.3 BUILT-IN REGULATORS
- 5 5.4 NO CRYSTAL FUNCTION
- 6 5.5 EXTERNAL OPTION FOR USB-ONLY OR USB/PS2 IN A2639B