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ManufacturerMicrochip
SeriesSY89845U

Datasheets

  • Download » Datasheet, PDF, 628 Kb, 11-10-2016
    SY89845U Data Sheet
    Docket ↓
    NOT RECOMMENDED FOR NEW DESIGNS SY89845U
    Precision CML Runt Pulse Eliminator 2:1 MUX
    with 1:2 Fanout and Internal Termination General Description
    The SY89845U is a low jitter CML, 2:1 differential
    input multiplexer (MUX) optimized for redundant
    source switchover applications. Unlike standard
    multiplexers, the SY89845U unique 2:1 Runt Pulse
    Eliminator (RPE) MUX prevents any short cycles or
    “runt” pulses during switchover. In addition, a unique
    Fail-Safe Input protection prevents metastable
    conditions when the selected input clock fails to a
    DC voltage (voltage between the pins of the
    differential input drops below 100mV).
    The differential input includes Micrel’s unique, 3-pin
    input termination architecture that allows customers
    to interface to any differential signal (AC-or DCcoupled) as small as 100mV (200mVPP) without any
    level shifting or termination resistor networks in the
    signal path. The outputs are 400mV CML with fast
    rise/fall times guaranteed to be less than 80ps.
    The SY89845U operates from a 2.5V ±5% or 3.3V
    ±10% supply and is guaranteed over the full
    industrial temperature range of –40°C to +85°C. The
    SY89845U is part of Micrel’s high-speed, Precision ...

Prices

Status

SY89845UMG
Lifecycle StatusNot Recommended for new designs

Packaging

SY89845UMG
PackageVQFN
Pins24

Parametrics

SY89845UMG
Description2:02
Fail-Safe Input, FSIYes
Input TypeANY
Operating Temperature Range, °C-40 to +85
Output Frequency, Max2
Output TypeCML
Propagation Delay, Max840
Runt Pulse Eliminator, RPEYes
Supply Voltage, V2.5/3.3V
Within Device Skew, Max20

Eco Plan

SY89845UMG
RoHSCompliant

Moldel Line

Series: SY89845U (1)

Manufacturer's Classification

  • Clock and Timing > Clock and Data Distribution > Multiplexers

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