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)

74LV244

Octal buffer/line driver; 3-state

The 74LV244 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. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess VCC.

Features and benefits

  • Wide supply voltage range from 1.0 V to 5.5 V

  • CMOS low power dissipation

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

  • Optimized for low voltage applications: 1.0 V to 3.6 V

  • Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V

  • Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V; Tamb = 25 °C

  • Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V; Tamb = 25 °C

  • Complies with JEDEC standards:

    • JESD8-7 (1.65 V to 1.95 V)
    • JESD8-5 (2.3 V to 2.7 V)
    • JESD8C (2.7 V to 3.6 V)
    • JESD36 (4.5 V to 5.5 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

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
74LV244APW 2.0 - 5.5 CMOS ± 16 60 8 low -40~125 101 4.7 45 TSSOP20
74LV244ATPW 4.5 - 5.5 TTL ± 16 60 8 low -40~125 101 4.7 45 TSSOP20
74LV244D 1.0 - 5.5 CMOS ± 16 30 8 low -40~125 76 18.2 52 SO20
74LV244PW 1.0 - 5.5 CMOS ± 16 30 8 low -40~125 94 2.9 38.3 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
74LV244APW 74LV244APWJ
(935308259118)		 Active LV244A SOT360-1
TSSOP20
(SOT360-1) 		SOT360-1 SSOP-TSSOP-VSO-WAVE
SOT360-1_118
74LV244ATPW 74LV244ATPWJ
(935308261118)		 Active LV244AT SOT360-1
TSSOP20
(SOT360-1) 		SOT360-1 SSOP-TSSOP-VSO-WAVE
SOT360-1_118
74LV244D 74LV244D,118
(935056370118)		 Active 74LV244D SOT163-1
SO20
(SOT163-1) 		SOT163-1 WAVE_BG-BD-1
SOT163-1_118
74LV244PW 74LV244PW,118
(935174650118)		 Active LV244 SOT360-1
TSSOP20
(SOT360-1) 		SOT360-1 SSOP-TSSOP-VSO-WAVE
SOT360-1_118

下表中的所有产品型号均已停产 。

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
74LV244DB 74LV244DB,112
(935073680112)		 Obsolete LV244 SOT339-1
SSOP20
(SOT339-1) 		SOT339-1 SSOP-TSSOP-VSO-WAVE
暂无信息
74LV244DB,118
(935073680118)		 Obsolete LV244 SOT339-1_118
74LV244PW 74LV244PW,112
(935174650112)		 Withdrawn / End-of-life LV244 SOT360-1
TSSOP20
(SOT360-1) 		SOT360-1 SSOP-TSSOP-VSO-WAVE
暂无信息

环境信息

型号 可订购的器件编号 化学成分 RoHS RHF指示符
74LV244APW 74LV244APWJ 74LV244APW rohs rhf rhf
74LV244ATPW 74LV244ATPWJ 74LV244ATPW rohs rhf rhf
74LV244D 74LV244D,118 74LV244D rohs rhf rhf
74LV244PW 74LV244PW,118 74LV244PW rohs rhf rhf

下表中的所有产品型号均已停产 。

型号 可订购的器件编号 化学成分 RoHS RHF指示符
74LV244DB 74LV244DB,112 74LV244DB rohs rhf rhf
74LV244DB 74LV244DB,118 74LV244DB rohs rhf rhf
74LV244PW 74LV244PW,112 74LV244PW rohs rhf rhf
品质及可靠性免责声明

文档 (15)

文件名称 标题 类型 日期
74LV244 Octal buffer/line driver; 3-state Data sheet 2024-07-04
AN263 Power considerations when using CMOS and BiCMOS logic devices Application note 2023-02-07
AN90063 Questions about package outline drawings Application note 2025-10-22
sv00363 Block diagram: 74LV244D, 74LV244DB, 74LV244N, 74LV244PW, 74LV244U Block diagram 2009-11-03
SOT360-1 3D model for products with SOT360-1 package Design support 2020-01-22
SOT163-1 3D model for products with SOT163-1 package Design support 2020-01-22
lv244 74LV244 IBIS model IBIS model 2019-01-09
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
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
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
SOT339-1 plastic, shrink small outline package; 20 leads; 0.65 mm pitch; 7.2 mm x 5.3 mm x 2 mm body Package information 2020-04-21
lv lv Spice model SPICE model 2013-05-07
SSOP-TSSOP-VSO-WAVE Footprint for wave soldering Wave soldering 2009-10-08
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08

支持

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模型

文件名称 标题 类型 日期
SOT360-1 3D model for products with SOT360-1 package Design support 2020-01-22
SOT163-1 3D model for products with SOT163-1 package Design support 2020-01-22
lv244 74LV244 IBIS model IBIS model 2019-01-09
lv lv Spice model SPICE model 2013-05-07

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