74LVC257AD集成電路（IC）的信號開關(guān)多路復用器解碼器規(guī)格書PDF中文資料

廠商型號	74LVC257AD
參數(shù)屬性	74LVC257AD 封裝/外殼為16-SOIC（0.154"，3.90mm 寬）；包裝為管件；類別為集成電路（IC）的信號開關(guān)多路復用器解碼器；產(chǎn)品描述：IC MULTIPLEXER 4 X 2:1 16SO
功能描述	Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state
封裝外殼	16-SOIC（0.154"，3.90mm 寬）
文件大小	262.21 Kbytes
頁面數(shù)量	14 頁
生產(chǎn)廠商	Nexperia B.V. All rights reserved
企業(yè)簡稱	NEXPERIA【安世】
中文名稱	安世半導體(中國)有限公司官網(wǎng)
原廠標識
數(shù)據(jù)手冊	下載地址一下載地址二到原廠下載
更新時間	2025-1-15 9:22:00

1. General description

The 74LVC257A is a quad 2-input multiplexer; 3-state. Inputs can be driven from either 3.3 V or

5 V devices. This feature allows the use of these devices as translators in mixed 3.3 V and 5 V

environments.

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.

This device is fully specified for partial power down applications using IOFF. The IOFF circuitry

disables the output, preventing the potentially damaging backflow current through the device when

it is powered down.

2. Features and benefits

? Overvoltage tolerant inputs to 5.5 V

? 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

? IOFF circuitry provides partial Power-down mode operation

? 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