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  • SN7447AN

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SN7447AN

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SRAM Nonvolatile Controller IC for 1 SRAM Bank 8-SOIC 0 to 70,Encoders,Decoders,Multiplexers & Demultiplexers BCD-To-Seven-Segment Decoder/Driver

Manufacturer : TI
Package/Case : PDIP-16
Product Categories : Encoders,Decoders,Multiplexers & Demultiplexers
Datasheet: SN7447AN Datasheet (PDF)
RoHs Status: Lead free/RoHS Compliant
Marking Code: SN7447AN
In-stock: 0

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SN7447AN Product Details

The '46A, '47A, and 'LS47 feature active-low outputs designed for driving, common-anode LEDs or incandescent indicators directly. The '48, 'LS48, and 'LS49 feature active-high outputs for driving lamp buffers or common-cathode LEDs. All of the circuits except 'LS49 have full ripple-blanking input/output controls and a lamp test input. The 'LS49 circuit incorporates a direct blanking input. Segment identification and resultant displays are shown below. Display patterns for BCD input counts above 9 are unique symbols to authenticate input conditions.

The '46A, '47A, '48, 'LS47, and 'LS48 circuits incorporate automatic leading and/or trailing-edge zero-blanking control (RBI\ and RBO\). Lamp test (LT\) of these types may be performed at any time when the BI\/RBO\ node is at a high level. All types (including the '49 and 'LS49) contain an overriding blanking input (BI\), which can be used to control the lamp intensity by pulsing or to inhibit the outputs. Inputs and outputs are entirely compatible for use with TTL logic outputs.

The SN54246/SN74246 and '247 and the SN54LS247/SN74LS247 and 'LS248 compose the 6 and the 9 with tails and were designed to offer the designer a choice between two indicator fonts.

SN7447AN

Feature

  • '46A, '47A, 'LS47 feature
    • Open-Collector Outputs Drive Indicators Directly
    • Lamp-Test Provision
    • Leading/Trailing Zero Suppression
  • '48, 'LS48 feature
    • Internal Pull-Ups Eliminate Need for External Resistors
    • Lamp-Test Provision
    • Leading/Trailing Zero Suppression
  • 'LS49 feature
    • Open-Collector Outputs
    • Blanking Input
  • All Circuit Types Feature Lamp Intensity Modulation Capability
Description

The '46A, '47A, and 'LS47 feature active-low outputs designed for driving, common-anode LEDs or incandescent indicators directly. The '48, 'LS48, and 'LS49 feature active-high outputs for driving lamp buffers or common-cathode LEDs. All of the circuits except 'LS49 have full ripple-blanking input/output controls and a lamp test input. The 'LS49 circuit incorporates a direct blanking input. Segment identification and resultant displays are shown below. Display patterns for BCD input counts above 9 are unique symbols to authenticate input conditions.

The '46A, '47A, '48, 'LS47, and 'LS48 circuits incorporate automatic leading and/or trailing-edge zero-blanking control (RBI\ and RBO\). Lamp test (LT\) of these types may be performed at any time when the BI\/RBO\ node is at a high level. All types (including the '49 and 'LS49) contain an overriding blanking input (BI\), which can be used to control the lamp intensity by pulsing or to inhibit the outputs. Inputs and outputs are entirely compatible for use with TTL logic outputs.

The SN54246/SN74246 and '247 and the SN54LS247/SN74LS247 and 'LS248 compose the 6 and the 9 with tails and were designed to offer the designer a choice between two indicator fonts.

Technical Parameters

  • Mounting Style
  • Through Hole
  • Package / Case
  • PDIP-16
  • Operating Supply Voltage
  • 4.75 V to 5.25 V
  • Maximum Operating Temperature
  • + 70 C
  • Minimum Operating Temperature
  • 0 C
  • Packaging
  • Tube
  • High Level Output Current
  • - 0.2 mA
  • Logic Family
  • TTL
  • Low Level Output Current
  • 8 mA
  • Factory Pack Quantity
  • 25

SN7447AN Equivalent Parts

For the SN7447AN component, you may consider these replacement and alternative parts.

Models Manufacturer Package/Case Description
MC7447AN
NTE7447 NTE DIP IC-TTL DECODER/DRIVER
DM7447AN ON DIP-16 Encoders, Decoders, Multiplexers & Demultiplexers BCD-to-7 Seg Dec/Drv

SN7447AN Related Products

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  • **aul ***
    2020-03-28

    Alles TOP !! Danke !

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