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74LVC257ADB

Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state

The 74LVC257A is a quad 2-input multiplexer with 3-state outputs, which select 4 bits of data from two sources and are controlled by a common data select input (pin S). The data inputs from source 0 (pins 1I0 to 4I0) are selected when pin S is LOW and the data inputs from source 1 (pins 1I1 to 4I1) are selected when pin S is HIGH. Data appears at the outputs (pins 1Y to 4Y) in true (non-inverting) form from the selected inputs. The device is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to pin S. The outputs are forced to a high-impedance OFF-state when pin OE is HIGH.

Inputs can be driven from either 3.3 V or 5.0 V devices. When disabled, up to 5.5 V can be applied to the outputs. These features allow the use of these devices as translators in mixed 3.3 V and 5 V applications.

不建议用在新设计中(NRND)。

可订购部件

型号 可订购的器件编号 订购代码(12NC) 封装 从经销商处购买
74LVC257ADB 74LVC257ADB,118 935260679118 SOT338-1 订单产品
74LVC257ADB 74LVC257ADB,112 935260679112 SOT338-1 订单产品

特性

  • 5 V tolerant inputs/outputs, for interfacing with 5 V logic
  • Wide supply voltage range from 1.2 V to 3.6 V
  • CMOS low-power consumption
  • Direct interface with TTL levels
  • Output drive capability 50 Ω transmission lines at 85 °C
  • Complies with JEDEC standard:
    • JESD8-7A (1.65 V to 1.95 V)
    • JESD8-5A (2.3 V to 2.7 V)
    • JESD8-C/JESD36 (2.7 V to 3.6 V)
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115B exceeds 200 V
    • CDM JESD22-C101E exceeds 1000 V
  • Specified from -40 °C to +85 °C and -40 °C to +125 °C

目标应用

参数类型

型号Product statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Package name
74LVC257ADB
NRND
Not for design in1.2 - 3.6CMOS/LVTTL+/- 242.4low-40~12514842.0SSOP16

Package

型号可订购的器件编号,(订购码(12NC))状态标示封装尺寸版本回流焊/波峰焊包装
74LVC257ADB
NRND
74LVC257ADB,118
( 9352 606 79118 )
ActiveVC257A
SSOP16
(SOT338-1)
SOT338-1SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1
74LVC257ADB,112
( 9352 606 79112 )
ActiveVC257ABulk Pack

品质、可靠性及化学成分

型号可订购的器件编号化学成分RoHS / RHFMSLMSL无铅
74LVC257ADB
NRND
74LVC257ADB,11874LVC257ADB11
74LVC257ADB
NRND
74LVC257ADB,11274LVC257ADB11
品质及可靠性免责声明

文档 (6)

文件名称标题类型日期
74LVC257AQuad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-stateData sheet2020-06-26
AN11009Pin FMEA for LVC familyApplication note2019-01-09
lvc257alvc257a IBIS modelIBIS model2013-04-07
lvclvc Spice modelSPICE model2013-05-06
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SSOP-TSSOP-VSO-REFLOWFootprint for reflow solderingReflow soldering2009-10-08

支持

如果您需要设计/技术支持,请告知我们并填写 应答表, 我们会尽快回复您。

模型

文件名称标题类型日期
lvc257alvc257a IBIS modelIBIS model2013-04-07
lvclvc Spice modelSPICE model2013-05-06

订购、定价与供货

型号Orderable part numberOrdering code (12NC)包装在线购买
74LVC257ADB74LVC257ADB,118935260679118Reel 13" Q1/T1订单产品
74LVC257ADB74LVC257ADB,112935260679112Bulk Pack订单产品

样品

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样品订单通常需要2-4天寄送时间。

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