SN74AVCH8T245PWR by Texas Instruments | Bus Driver/Transceiver | Avnet ASIA

Dear Customers, We will be closed from 14th to 20th Feb 2018 for Chinese New Year holidays.
The Online Help (OnlineSupportAsia@avnet.com ) shall resume on 21st Feb 2018. Thank you for your attention.

Close
Close
Close
TOOL TIP
printPRINT image Bookmark Share
Send a link to this page
Please enter a valid Email id
Link
Sender
Send to
jsmith@baa.com
sjohnson@baa.com
Add another address
Add another address
Add another address
Subject
Message

SN74AVCH8T245PWR

Texas Instruments

Bus XCVR Single 8-CH 3-ST 24-Pin TSSOP T/R

Manufacturer Part #: SN74AVCH8T245PWR

Alternate Part #: SN74AVCH8T245PWR


legend RoHS Compliant

Descriptions

Documents

Subs/Alternatives

Information

This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVCH8T245 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVCH8T245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the outputs so the buses are effectively isolated.

The SN74AVCH8T245 is designed so the control pins (DIR and OE) are supplied by VCCA.

The SN74AVCH8T245 solution is compatible with a single-supply system and can be replaced later with a '245 function, with minimal printed circuit board redesign.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The VCC isolation feature ensures that if either VCC input is at GND, both outputs are in the high-impedance state. The bus-hold circuitry on the powered-up side always stays active.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

To ensure the high-impedance state during power up or power down, OE shall be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Key Features

  • Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
  • VCC Isolation Feature — If Either VCC Input Is at GND, All I/O Ports Are in the High-Impedance State
  • Ioff Supports Partial-Power-Down Mode Operation
  • Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range
  • I/Os Are 4.6-V Tolerant
  • Max Data Rates:
    • 320 Mbps (VCCA ≤ 1.8 V and VCCB ≤ 1.8 V)
    • 170 Mbps (VCCA ≥ 1.8 V or VCCB ≥ 1.8 V)
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 8000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • Technical Attributes

    Description
    Value
    Find similar Parts
    Supplier Package
    TSSOP
    Product Dimensions
    7.9 x 4.5 x 1.05 mm
    Maximum Propagation Delay Time @ Maximum CL
    6.8@1.5V@3.3V ns
    Number of Direction Control Inputs
    1 Low/High
    Data Flow Direction
    Bi-Directional
    Maximum Quiescent Current
    16 uA
    Logic Function
    Bus Transceiver with Voltage Translation
    Bus Hold
    Yes
    Maximum Low Level Output Current
    12 mA
    Fabrication Technology
    CMOS
    Maximum Operating Supply Voltage
    3.6 V
    Number of Output Enables per Element
    1 Low
    Minimum Operating Supply Voltage
    1.2 V
    Propagation Delay Test Condition
    15 pF
    Operating Temperature
    -40 to 85 °C
    MSL Level
    1
    Max Processing Temp
    260
    Typical Operating Supply Voltage
    1.8|2.5|3.3 V
    Polarity
    Non-Inverting
    Number of Elements per Chip
    1
    Lead Finish
    Gold
    Pin Count
    24
    Number of Channels per Chip
    8
    Output Type
    3-State
    Output Level
    CMOS
    Maximum High Level Output Current
    -12 mA
    Tolerant I/Os
    4.6 V
    Input Level
    CMOS
    Mounting
    Surface Mount

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    SCHEDULE B:
    8542310000"
    UNSPSC:
    32101654
    UNSPSC VERSION:
    V15.1101

    Documents

    Subs/Alternatives
    Related Parts
    Products
    Pricing
    Availability
    Qty
    {{#catalogEntryView}}
    {{{shortDescription}}}
    {{#compareCheck}} {{/compareCheck}} {{^compareCheck}} {{/compareCheck}} {{#compareCountCheck}} Added to Compare (Compare Products) {{/compareCountCheck}} {{^compareCountCheck}} Compare {{/compareCountCheck}}
    {{#displayTier}}
    {{#tierPrice}} {{#tierWithinRange}} {{#firstTier}}
    {{tierQuantity}}+
    {{{formattedItemPrice}}}
    {{/firstTier}} {{^firstTier}}
    {{tierQuantity}}+
    {{{formattedItemPrice}}}
    {{/firstTier}} {{/tierWithinRange}} {{/tierPrice}}
    {{/displayTier}}
    {{#displayTier}}
    {{#tierPrice}} {{#showAllTier}} {{#firstTier}}
    {{tierQuantity}}+
    {{{formattedItemPrice}}}
    {{/firstTier}} {{^firstTier}}
    {{tierQuantity}}+
    {{{formattedItemPrice}}}
    {{/firstTier}} {{/showAllTier}} {{/tierPrice}}
    {{/displayTier}}
    {{#collapsedPriceTier}}
    More
    {{/collapsedPriceTier}} {{#quoteItem}}
    {{#newProductFlagNotNPI}}

    Requires Quote

    REQUEST QUOTE  

    {{/newProductFlagNotNPI}}
    {{/quoteItem}} {{#iQuoteItem}} {{#newProductFlagNotNPI}}

    Requires Quote

    REQUEST QUOTE  

    {{/newProductFlagNotNPI}} {{/iQuoteItem}} {{#webQuoteItem}}

    Requires Quote

    REQUEST QUOTE  

    {{/webQuoteItem}} {{#productQuoteItem}} {{#notCpi_notNpi}} {{^hidePrice}}
    {{/hidePrice}} {{#hidePrice}}
    REQUEST QUOTE  

    {{/hidePrice}} {{/notCpi_notNpi}} {{/productQuoteItem}}
    {{#onlyShowMoreStock}}
    {{/onlyShowMoreStock}} {{^onlyShowMoreStock}}
    {{/onlyShowMoreStock}} {{^redTag}} {{#downloadableSoftware}}

    In Stock downloadable

    {{/downloadableSoftware}} {{^.downloadableSoftware}} {{#stockReady}}

    In Stock: {{displayQty}}

    {{/stockReady}} {{/.downloadableSoftware}} {{/redTag}} {{#factoryStockAvailable}}

    Ship From MFR: {{factoryStockDisplay}}

    {{/factoryStockAvailable}} {{#validLeadTime}} {{^obsolete}} {{#displayLeadTime}}

    Additional Stock Lead Time: {{displayLeadTime}}

    {{/displayLeadTime}} {{/obsolete}} {{/validLeadTime}} {{#canBuildInv}}

    Can Build {{canBuildInv}} {{#displayCanBuildLeadTime}} in {{displayCanBuildLeadTime}} {{/displayCanBuildLeadTime}}

    {{/canBuildInv}} {{#showMoreStockLink}}

    Check additional stock and lead time

    {{/showMoreStockLink}}
    {{#isAddCartAllowed}} {{/isAddCartAllowed}}
    {{^hideMinMult}} Min: {{xcatField1}} Mult: {{multQuantity}} {{/hideMinMult}}
    {{/catalogEntryView}}
    {{#showMore}} {{/showMore}}

    Chinese New Year Promotion