NCA9544 Description
!P:I i'i!.i f~ Et!~ NCA9544 4-channel PC-bus multiplexer with interrupt logic Datasheet (EN) 1.0 Product Overview The NCA9544 is a 1-of-4 bidirectional translating multiplexer controlled via the 12C bus. The SCL/SDA upstream pair fans out to one of the four downstream pairs, or channels. Only one SCn/SDn channel is selected at a time, determined by the contents of the programmable control register.
NCA9544 Key Features
- 1-of-4 Bidirectional Translating multiplexer
- 12C Bus and SM Bus patible
- Four Active-Low Interrupt Inputs
- Active-Low Interrupt Output
- Three Address Terminals, Allowing up to eight Devices
- Channel Selection via 12C Bus
- Power-Up with All Switch Channels Deselected
- Low RON Switches
- Allows Voltage-Level Translation Between 1.8-V, 2.5-V
- No Glitch on Power-Up