Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)
NCA9547APW-Q100

NCA9547APW-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.
  • Product details
  • Documentation
  • Support
  • Ordering
  • Interactive datasheet

Product details

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

Register once, drag and drop ECAD models into your CAD tool and speed up your design.

More information

Quality and reliability disclaimer

Support

Please contact us if you have any questions. If you are in need of design support, please fill in the technical support form, we will get back to you shortly.

Please visit our engineer exchange forum or contact us for further support.

Longevity

The Nexperia Longevity Program is aimed to provide our customers information from time to time about the expected time that our products can be ordered. The NLP is reviewed and updated regularly by our Executive Management Team. View our longevity program here.

Sample

As a Nexperia customer you can order samples via our sales organization.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.

Interactive datasheet

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.

Interactive datasheet