Datasheet > TC74VHC238FK_12

TC74VHC238FK_12

更新时间： 2024-11-05 01:18:27

品牌	Logo	应用领域
东芝 - TOSHIBA		/
页数	文件大小	规格书
9页	225K
描述
3-to-8 Line Decoder

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数据手册

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TC74VHC238FK_12 数据手册

TC74VHC238F/FT/FK

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74VHC238F,TC74VHC238FT,TC74VHC238FK

3-to-8 Line Decoder

TC74VHC238F

TC74VHC238FT

TC74VHC238FK

The TC74VHC238 is an advanced high speed CMOS 3-to-8

DECODER fabricated with silicon gate C²MOS technology.

It achieves the high speed operation similar to equivalent

Bipolar Schottky TTL while maintaining the CMOS low power

dissipation.

When the device is enabled, 3 Binary Select inputs (A, B and C)

determine which one of the outputs (Y0-Y7) will go High.

When enable input G1 is held low or either G2A or G2B is

held high, decoding function is inhibited and all outputs go Low.

G1 G2A , and G2B inputs are provided to ease cascade

connection and for use as an address decoder for memory

systems.

An input protection circuit ensures that 0 to 5.5 V can be

applied to the input pins without regard to the supply voltage.

This device can be used to interface 5 to 3 V systems and two

supply systems such as battery back up. This circuit prevents

device destruction due to mismatched supply and input voltages.

Features

•

High speed: t = 5.5 ns (typ.) at V

= 5 V

Low power dissipation: I

= 4 μA (max) at Ta = 25°C

High noise immunity: V

= V

= 28% V

(min)

NIH

NIL

Power down protection is provided on all inputs.

∼

−

Balanced propagation delays: t

pHL

pLH

Wide operating voltage range: V

= 2 to 5.5 V

CC (opr)

Pin and function compatible with 74ALS238

Weight

SOP16-P-300-1.27A

: 0.18 g (typ.)

TSSOP16-P-0044-0.65A : 0.06 g (typ.)

VSSOP16-P-0030-0.50

: 0.02 g (typ.)

2012-02-29

12 3 4 5 6 7...9

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