双极性晶体管

二极管

ESD保护、TVS、滤波和信号调节ESD保护

MOSFET

氮化镓场效应晶体管(GaN FET)

绝缘栅双极晶体管(IGBTs)

模拟和逻辑IC

汽车应用认证产品(AEC-Q100/Q101)

74LVT244B; 74LVTH244B

3.3 V octal buffer/line driver; 3-state

The 74LVT244B; 74LVTH244B is an 8-bit buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Bus hold data inputs eliminate the need for external pull-up resistors to define unused inputs.

Features and benefits

  • Octal bus interface

  • 3-state buffers

  • Speed upgrade of 74LVT244A

  • Wide supply voltage range from 2.7 to 3.6 V

  • BiCMOS high speed and output drive

  • Output capability: +64 mA and -32 mA

  • Direct interface with TTL levels

  • Overvoltage tolerant inputs to 5.5 V

  • Input and output interface capability to systems at 5 V supply

  • Bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs

  • No bus current loading when output is tied to 5 V bus

  • Power-up 3-state

  • Live insertion and extraction permitted

  • IOFF circuitry provides partial Power-down mode operation

  • Latch-up performance exceeds 500 mA per JESD 78 Class II Level B

  • Complies with JEDEC standards

    • JESD8C (2.7 V to 3.6 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

参数类型

型号 VCC (V) Logic switching levels Output drive capability (mA) fmax (MHz) Nr of bits Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Ψth(j-top) (K/W) Rth(j-c) (K/W) Package name
74LVT244BD 2.7 - 3.6 TTL -32 / +64 150 8 medium -40~85 84 25.8 60 SO20
74LVT244BPW 2.7 - 3.6 TTL -32 / +64 150 8 medium -40~85 100 4.3 44 TSSOP20
74LVTH244BD 2.7 - 3.6 TTL -32 / +64 150 8 medium -40~85 84 25.8 60 SO20
74LVTH244BPW 2.7 - 3.6 TTL -32 / +64 150 8 medium -40~85 100 4.3 44 TSSOP20

封装

型号 可订购的器件编号，（订购码(12NC)） 状态 标示 封装 外形图 回流焊/波峰焊 包装
74LVT244BD 74LVT244BD,118
(935262791118)		 Active 74LVT244BD SOT163-1
SO20
(SOT163-1) 		SOT163-1 WAVE_BG-BD-1
SOT163-1_118
74LVT244BPW 74LVT244BPW,118
(935262793118)		 Active LVT244B SOT360-1
TSSOP20
(SOT360-1) 		SOT360-1 SSOP-TSSOP-VSO-WAVE
SOT360-1_118
74LVTH244BD 74LVTH244BD,118
(935281741118)		 Active 74LVTH244BD SOT163-1
SO20
(SOT163-1) 		SOT163-1 WAVE_BG-BD-1
SOT163-1_118
74LVTH244BPW 74LVTH244BPW,118
(935281743118)		 Active VTH244B SOT360-1
TSSOP20
(SOT360-1) 		SOT360-1 SSOP-TSSOP-VSO-WAVE
SOT360-1_118

环境信息

型号 可订购的器件编号 化学成分 RoHS RHF指示符
74LVT244BD 74LVT244BD,118 74LVT244BD rohs rhf rhf
74LVT244BPW 74LVT244BPW,118 74LVT244BPW rohs rhf rhf
74LVTH244BD 74LVTH244BD,118 74LVTH244BD rohs rhf rhf
74LVTH244BPW 74LVTH244BPW,118 74LVTH244BPW rohs rhf rhf
品质及可靠性免责声明

文档 (13)

文件名称 标题 类型 日期
74LVT_LVTH244B 3.3 V octal buffer/line driver; 3-state Data sheet 2024-07-08
AN90063 Questions about package outline drawings Application note 2025-06-13
001aae463 Block diagram: 74LVT244BD, 74LVT244BDB, 74LVT244BPW, 74LVTH244BD, 74LVTH244BDB, 74LVTH244BPW Block diagram 2009-11-04
mna825 Block diagram: 74LVT244BD, 74LVT244BDB, 74LVT244BPW, 74LVTH244BD, 74LVTH244BDB, 74LVTH244BPW, 74LVT244AD, 74LVT244ADB, 74LVT244APW, 74LVTH244AD, 74LVTH244ADB, 74LVTH244APW Block diagram 2009-11-04
SOT163-1 3D model for products with SOT163-1 package Design support 2020-01-22
SOT360-1 3D model for products with SOT360-1 package Design support 2020-01-22
lvt244b lvt244b IBIS model IBIS model 2013-04-09
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
TSSOP20_SOT360-1_mk plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body Marcom graphics 2017-01-28
SOT163-1 plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm body Package information 2024-11-15
SOT360-1 plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.2 mm body Package information 2024-11-15
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08
SSOP-TSSOP-VSO-WAVE Footprint for wave soldering Wave soldering 2009-10-08

支持

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模型

文件名称 标题 类型 日期
SOT163-1 3D model for products with SOT163-1 package Design support 2020-01-22
SOT360-1 3D model for products with SOT360-1 package Design support 2020-01-22
lvt244b lvt244b IBIS model IBIS model 2013-04-09

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