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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)

74HCT85DB

4-bit magnitude comparator

The 74HC85; 74HCT85 is a 4-bit magnitude comparator that can be expanded to almost any length. They perform comparison of two 4-bit binary, BCD or other monotonic codes and present the three possible magnitude results at the outputs (QA>B, QA=B and QA<B). The 4-bit inputs are weighted (A0 to A3 and B0 to B3), where A3 and B3 are the most significant bits. For proper compare operation the expander inputs (IA>B, IA=B and IA<B) to the least significant position must be connected as follows: IA<B = IA>B = LOW and IA=B = HIGH. For words greater than 4-bits, units can be cascaded by connecting outputs QA>B, QA=B and QA<B to the corresponding inputs of the significant comparator. 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 to 6.0 V

  • CMOS low power dissipation

  • High noise immunity

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

  • Input levels:

    • For 74HC85: CMOS level

    • For 74HCT85: TTL level

  • Complies with JEDEC standards:

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

  • 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

Applications

  • Process controllers

  • Servo-motor control

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
74HCT85DB 74HCT85DB,112
(935190310112)		 Obsolete no package information
74HCT85DB,118
(935190310118)		 Obsolete

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
74HCT85DB 74HCT85DB,112 74HCT85DB rohs rhf rhf
74HCT85DB 74HCT85DB,118 74HCT85DB rohs rhf rhf
品質及可靠性免責聲明

文檔 (3)

文件名稱 標題 類型 日期
74HC_HCT85 4-bit magnitude comparator Data sheet 2024-09-06
AN11044 Pin FMEA 74HC/74HCT family Application note 2019-01-09
HCT_USER_GUIDE HC/T User Guide User manual 1997-10-31

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.