ホーム スイッチ/マルチプレクサ デジタル マルチプレクサ / エンコーダ
ホーム
スイッチ/マルチプレクサ
デジタル マルチプレクサ / エンコーダ

CY74FCT2257T

アクティブ

3 ステート出力、直列ダンピング抵抗搭載、クワッド、2:1、データ セレクタ / マルチプレクサ

ご注文はこちら
データシート
ユーザー ガイド

CY74FCT2257T

アクティブ
データシート ご注文はこちら

製品詳細

Technology family FCT Function Digital Multiplexer Configuration 2:1 Number of channels 4 Operating temperature range (°C) -40 to 85 Rating Catalog
Technology family FCT Function Digital Multiplexer Configuration 2:1 Number of channels 4 Operating temperature range (°C) -40 to 85 Rating Catalog
SSOP (DBQ) 16 29.4 mm² (4.9 mm × 6 mm)
  • Function and Pinout Compatible With FCT and F Logic
  • 25- Output Series Resistors to Reduce Transmission-Line Reflection Noise
  • TTL Output Level Versions of Equivalent FCT Functions
  • Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
  • Ioff Supports Partial-Power-Down Mode Operation
  • Fully Compatible With TTL Input and Output Logic Levels
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • 12-mA Output Sink Current
    15-mA Output Source Current
  • 3-State Outputs
  • Function and Pinout Compatible With FCT and F Logic
  • 25- Output Series Resistors to Reduce Transmission-Line Reflection Noise
  • TTL Output Level Versions of Equivalent FCT Functions
  • Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
  • Ioff Supports Partial-Power-Down Mode Operation
  • Fully Compatible With TTL Input and Output Logic Levels
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • 12-mA Output Sink Current
    15-mA Output Source Current
  • 3-State Outputs

The CY74FCT2257T has four identical two-input multiplexers that select four bits of data from two sources under the control of a common data-select (S) input. The I0 inputs are selected when S is low, and the I1 inputs are selected when S is high. Data appears at the output in noninverted form for the CY74FCT2257T. On-chip termination resistors at the outputs reduce system noise caused by reflections. The CY74FCT2257T can replace the FCT257T to reduce noise in an existing design.

The CY74FCT2257T is a logic implementation of a four-pole, two-position switch, in which the position of the switch is determined by the logic levels supplied to S. Outputs are forced to the high-impedance off state when the output-enable (OE\) input is high.

All but one device must be in the high-impedance state to prevent currents from exceeding the maximum ratings if outputs are tied together. Design of the OE\ signals must ensure that there is no overlap when outputs of 3-state devices are tied together.

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 CY74FCT2257T has four identical two-input multiplexers that select four bits of data from two sources under the control of a common data-select (S) input. The I0 inputs are selected when S is low, and the I1 inputs are selected when S is high. Data appears at the output in noninverted form for the CY74FCT2257T. On-chip termination resistors at the outputs reduce system noise caused by reflections. The CY74FCT2257T can replace the FCT257T to reduce noise in an existing design.

The CY74FCT2257T is a logic implementation of a four-pole, two-position switch, in which the position of the switch is determined by the logic levels supplied to S. Outputs are forced to the high-impedance off state when the output-enable (OE\) input is high.

All but one device must be in the high-impedance state to prevent currents from exceeding the maximum ratings if outputs are tied together. Design of the OE\ signals must ensure that there is no overlap when outputs of 3-state devices are tied together.

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.
filter その他の デジタル マルチプレクサ / エンコーダ を検索
ダウンロード 字幕付きのビデオを表示 ビデオ

技術資料

結果が見つかりませんでした。検索条件をクリアしてから、再度検索を試してください。
2 をすべて表示
上位の文書 タイプ タイトル フォーマットオプション 最新の英語版をダウンロード 日付
* データシート Quad 2-Input Multiplexer With 3-State Outputs データシート (Rev. B) 2001/06/19
* ユーザー・ガイド CYFCT Parameter Measurement Information 2001/04/02

設計と開発

その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。

パッケージ ピン数 CAD シンボル、フットプリント、および 3D モデル
SSOP (DBQ) 16 Ultra Librarian
TI の評価基板に関する標準契約約款が適用されます。

購入と品質

サポートとトレーニング

TI E2E™ フォーラムでは、TI のエンジニアからの技術サポートを提供

投稿されたすべてのフォーラムトピック (英語) を表示

コンテンツは、TI 投稿者やコミュニティ投稿者によって「現状のまま」提供されるもので、TI による仕様の追加を意図するものではありません。使用条件をご確認ください。

TI 製品の品質、パッケージ、ご注文に関するお問い合わせは、TI サポートをご覧ください。​​​​​​​​​​​​​​

ビデオ