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NCA9306DC

2-bit bidirectional multi-voltage level translator; open-drain; push-pull

The NCA9306 is a 2 channel bidirectional I²C and SMBus multi-voltage level translator with an enable (EN) pin input. It allows voltage translation between 0.95 V and 5 V without the use of a direction pin. It supports up to 100 MHz up translation and >100 MHz down translation at ≤ 30 pF capacitive load. There is no need for a direction pin which minimizes the system effort. The NCA9306 supports 5 V tolerant I/O pins to support mixed mode signal operation. The ability to set up different voltage translation levels on each channel makes the device very flexible and suitable for a lot of different applications.

The low ON-state resistance RON of the switch allows connections to be made with minimal propagation delay. When EN is HIGH, the translator switch is on, and the SCLA and SDAA I/O are connected to the SCLB and SDAB I/O respectively, allowing bidirectional data flow between ports. When EN is LOW, the translator switch is off, and a high-impedance state exists between ports. As with the standard I²C bus-system, pull-up resistors are required to provide the logic HIGH levels on the translators bus. The NCA9306 has a standard open-drain configuration of the I²C-bus. The size of these pull-up resistors depend on the system. Each side of the translator must have a pull-up resistors. NCA9306 is designed to work with Standard-mode, Fast-mode and Fast-mode plus I²C bus devices in addition to the SMBus devices.

When the SDAA or SDAB pin is LOW, the clamp is in the ON-state and a low resistance connections exists between the SDAA and SDAB ports. Assuming the higher voltage is on the SDAB port when the SDAB port is HIGH, the voltage on the SDAA port is limited to the voltage set by refA. When the SDAA port is HIGH, the SDAB port is pulled to the refB supply voltage by the pull-up resistors. The SCLA or SCLB pins also follows the same behavior as described for SDAA or SDAB pins.

Alternatives

Features and benefits

  • 2-channel bidirectional voltage translator for SDA and SCL lines in mixed mode I²C bus applications

  • Open-drain I²C-bus I/O ports (SCLA, SDAA, SCLB and SDAB)

  • Provides bidirectional voltage translation with no direction pin

  • High-impedance SCLA, SDAA, SCLB and SDAB for EN = LOW

  • Up translation

    • < 100 MHz; CL = 30 pF

    • < 40 MHz; CL = 50 pF

  • Down translation

    • > 100 MHz; CL = 30 pF

    • < 40 MHz; CL = 50 pF

  • Hot insertion

  • Bidirectional voltage level translation between:

    • 0.95 V and 1.8 V, 2.5 V, 3.3 V and 5.0 V

    • 1.2 V and 1.8 V, 2.5 V, 3.3 V and 5.0 V

    • 1.8 V and 2.5 V, 3.3 V and 5.0 V

    • 2.5 V and 3.3 V and 5.0 V

    • 3.3 V and 5.0 V

  • Low standby current

  • 5 V tolerant I²C-bus I/O pins to support mixed mode signal operation

  • Low RON provides less signal distortion

  • Latch-up performance exceeds 100 mA per JESD78 class II level A

  • ESD protection:

    • HBM ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

  • Specified from -40 °C to +125 °C

Applications

  • GPIO, MDIO, PMBus, SMBus, SDIO, UART, I²C, and other interfaces in Telecom infrastructure

  • Industrial

  • Personal computing

  • Router and Industrial Automation

Parametrics

Type number VCC(A) (V) VCC(B) (V) Logic switching levels Output drive capability (mA) tpd (ns) Nr of bits Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Ψth(j-top) (K/W) Rth(j-c) (K/W) Package name Category
NCA9306DC 0.95 - 5.0 0.95 - 5.0 CMOS + 64 0.4 2 low -40~125 206 36.1 117 VSSOP8 Application specific

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
NCA9306DC NCA9306DCH
(935691026125)		 Active h9 SOT765-1
VSSOP8
(SOT765-1) 		SOT765-1 SOT765-1_125

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
NCA9306DC NCA9306DCH NCA9306DC rohs rhf rhf
Quality and reliability disclaimer

Series

Documentation (10)

File name Title Type Date
NCA9306 2-bit bidirectional multi-voltage level translator; open-drain; push-pull Data sheet 2024-08-05
AN90033 Bidirectional multi-voltage level translator applications using Nexperia's LSF010x auto-sense devices Application note 2022-09-02
Nexperia_document_guide_MiniLogic_PicoGate_201901 PicoGate leaded logic portfolio guide Brochure 2019-01-07
SOT765-1 3D model for products with SOT765-1 package Design support 2020-01-22
nca9306 NCA9306 IBIS model IBIS model 2020-09-23
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
VSSOP8_SOT765-1_mk plastic, very thin shrink small outline package; 8 leads; 0.5 mm pitch; 2 mm x 2.3 mm x 1 mm body Marcom graphics 2017-01-28
SOT765-1 plastic, very thin shrink small outline package; 8 leads; 0.5 mm pitch; 2 mm x 2.3 mm x 1 mm body Package information 2022-06-03
SOT765-1_125 VSSOP8; Reel pack for SMD, 7''; Q3/T4 product orientation Packing information 2020-04-21
NCA9306DC_Nexperia_Product_Reliability NCA9306DC Nexperia Product Reliability Quality document 2024-06-16

Support

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Models

File name Title Type Date
nca9306 NCA9306 IBIS model IBIS model 2020-09-23
SOT765-1 3D model for products with SOT765-1 package Design support 2020-01-22

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
NCA9306DC NCA9306DCH 935691026125 Active SOT765-1_125 3,000 Order product

Sample

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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

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
NCA9306DC NCA9306DCH 935691026125 SOT765-1 Order product