双极性晶体管

二极管

ESD保护、TVS、滤波和信号调节ESD保护

MOSFET

氮化镓场效应晶体管(GaN FET)

绝缘栅双极晶体管(IGBTs)

模拟和逻辑IC

汽车应用认证产品(AEC-Q100/Q101)
NCA9547ABY-Q100

NCA9547ABY-Q100 Production

8-channel I²C-bus multiplexer with reset

The NCA9547-Q100 is an octal bidirectional translating multiplexer controlled by the I²C-bus. The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Only one SCn/SDn channel can be selected at a time, determined by the contents of the programmable control register. The device powers up with Channel 0 connected, allowing immediate communication between the controller and downstream devices (targets) on that channel.

An active LOW reset input allows the NCA9547-Q100 to recover from a situation where one of the downstream I²C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets the I²C-bus state machine causing all the channels to be deselected, except Channel 0 so that the controller can regain control of the bus.

The pass gates of the multiplexers are constructed such that the VCC pin can be used to limit the maximum high voltage which will be passed by the NCA9547-Q100. This allows the use of different bus voltages on each pair, so that 1.8 V, 2.5 V, or 3.3 V parts can communicate with 5 V parts without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 6 V tolerant.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.
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产品细节

Features and benefits

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)

    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

  • 1-of-8 bidirectional translating multiplexers

  • I²C-bus interface logic; compatible with SMBus standards

  • Active LOW reset input

  • Three address pins allowing up to eight devices on the I²C-bus

  • Channel selection via I²C-bus, one channel at a time

  • Power-up with all channels deselected, except channel 0 which is connected

  • Low Ron multiplexers

  • Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses

  • No glitch on power-up

  • Supports hot insertion

  • Low standby current

  • Operating power supply voltage range of 1.65 V to 5.5 V

  • 6 V tolerant inputs

  • 0 Hz to 400 kHz clock frequency

  • Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA

  • Two packages offered: TSSOP24, and HWQFN24

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2 kV

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1 kV

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交互式数据手册

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

交互式数据手册