Datasheet > TC74LCX257FT_12

TC74LCX257FT_12

更新时间： 2024-11-19 12:22:59

品牌	Logo	应用领域
东芝 - TOSHIBA		复用器
页数	文件大小	规格书
10页	223K
描述
Low-Voltage Quad 2-Channel Multiplexer (3-state) with 5-V Tolerant Inputs and Outputs

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数据手册

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TC74LCX257FT_12 数据手册

TC74LCX257F/FT/FK

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74LCX257F,TC74LCX257FT,TC74LCX257FK

Low-Voltage Quad 2-Channel Multiplexer (3-state) with 5-V Tolerant Inputs and Outputs

The TC74LCX257 is a high-performance CMOS multiplexer.

Designed for use in 3.3-V systems, it achieves high-speed

TC74LCX257F

operation while maintaining the CMOS low-power dissipation.

The device is designed for low-voltage (3.3 V) V

applications,

but it could be used to interface to 5-V supply environment for

inputs.

It is composed of four independent 2-channel multiplexers with

common select and OE .

If OE is set low, the outputs are held in a high-impedance

state. When SELECT is set low, “A” data inputs are enabled.

Conversely, when SELECT is high, “B” data inputs are enabled.

All inputs are equipped with protection circuits against static

discharge.

TC74LCX257FT

Features

•

Low-voltage operation: V

= 2.0 to 3.6 V

High-speed operation: t = 6.0 ns (max) (V

= 3.0 to 3.6 V)

Output current: |I |/I

= 24 mA (min) (V

= 3.0 V)

OH OL

Latch-up performance: −500 mA

TC74LCX257FK

Available in JEITA SOP, TSSOP and VSSOP(US)

Power-down protection provided on all inputs and outputs

Pin and function compatible with the 74 series

(74AC/VHC/HC/F/ALS/LS etc.) 257 type

Weight

SOP16-P-300-1.27A

TSSOP16-P-0044-0.65A

VSSOP16-P-0030-0.50

: 0.18 g (typ.)

: 0.06 g (typ.)

: 0.02 g (typ.)

2012-02-29

12 3 4 5 6 7...10

中文翻译

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