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雙極性晶體管

二極管

ESD保護、TVS、濾波和信號調節ESD保護

MOSFET

氮化鎵場效應晶體管(GaN FET)

絕緣柵雙極晶體管(IGBTs)

模擬和邏輯IC

汽車應用認證產品(AEC-Q100/Q101)

74HCT257DB

Quad 2-input multiplexer; 3-state

The 74HC257; 74HCT257 is a quad 2-input multiplexer with 3-state outputs. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

此產品已停產

Features and benefits

  • Wide supply voltage range from 2.0 V to 6.0 V

  • CMOS low power dissipation

  • High noise immunity

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

  • Complies with JEDEC standards:

    • JESD8C (2.7 V to 3.6 V)
    • JESD7A (2.0 V to 6.0 V)

  • Non-inverting data path

  • 3-state outputs interface directly with system bus

  • Input levels:

    • For 74HC257: CMOS level

    • For 74HCT257: TTL level

  • 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 +85 °C and from -40 °C to +125 °C

參數類型

型號 Package name
74HCT257DB SSOP16

PCB Symbol, Footprint and 3D Model

Model Name 描述

封裝

下表中的所有產品型號均已停產 。

型號 可訂購的器件編號，（訂購碼(12NC)） 狀態 標示 封裝 外形圖 回流焊/波峰焊 包裝
74HCT257DB 74HCT257DB,112
(935190960112)		 Obsolete HCT257 SOT338-1
SSOP16
(SOT338-1) 		SOT338-1 SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
暫無信息
74HCT257DB,118
(935190960118)		 Obsolete HCT257 暫無信息

環境信息

下表中的所有產品型號均已停產 。

型號 可訂購的器件編號 化學成分 RoHS RHF指示符
74HCT257DB 74HCT257DB,112 74HCT257DB rohs rhf rhf
74HCT257DB 74HCT257DB,118 74HCT257DB rohs rhf rhf
品質及可靠性免責聲明

文檔 (8)

文件名稱 標題 類型 日期
74HC_HCT257 Quad 2-input multiplexer; 3-state Data sheet 2024-03-22
AN11044 Pin FMEA 74HC/74HCT family Application note 2019-01-09
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
SSOP16_SOT338-1_mk plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body Marcom graphics 2017-01-28
SOT338-1 plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body Package information 2022-06-20
SSOP-TSSOP-VSO-REFLOW Footprint for reflow soldering Reflow soldering 2009-10-08
HCT_USER_GUIDE HC/T User Guide User manual 1997-10-31
SSOP-TSSOP-VSO-WAVE Footprint for wave soldering Wave soldering 2009-10-08

支持

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模型

No documents available

PCB Symbol, Footprint and 3D Model

Model Name 描述

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.