Datasheet > TC74AC257P_07

TC74AC257P_07

更新时间： 2024-11-22 05:04:11

品牌	Logo	应用领域
东芝 - TOSHIBA		/
页数	文件大小	规格书
9页	356K
描述
CMOS Digital Integrated Circuit Silicon Monolithic

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中文翻译

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数据手册

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TC74AC257P_07 数据手册

TC74AC257,258P/F/FN

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74AC257P,TC74AC257F,TC74AC257FN

TC74AC258P,TC74AC258F,TC74AC258FN

TC74AC257P/F/FN 2-Channel Multiplexer (3-state)

TC74AC258P/F/FN 2-Channel Multiplexer (3-state,

inverting)

Note: xxxFN (JEDEC SOP) is not available in

Japan.

TC74AC257P, TC74AC258P

TC74AC257F, TC74AC258F

TC74AC257FN, TC74AC258FN

The TC74AC257 and TC74AC258 are advanced high speed

CMOS MULTIPLEXERs fabricated with silicon gate and

double-layer metal wiring C²MOS technology.

They achieve the high speed operation similar to equivalent

Bipolar Schottky TTL while maintaining the CMOS low power

dissipation.

Each is composed of four independent 2-channel multiplexers

with common SELECT and OUTPUT ENABLE ( OE ).

The TC74AC257 is a non-inverting multiplexer, while the

TC74AC258 is an inverting.

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 or transient excess voltage.

Features

•

High speed: t = 3.6 ns (typ.) at V

= 5 V

Low power dissipation: I

= 8 μA (max) at Ta = 25°C

High noise immunity: V

= V

= 28% V

(min)

NIH

NIL

Symmetrical output impedance: |I | = I

= 24 mA (min)

Capability of driving 50 Ω

transmission lines.

∼

−

pHL

(opr) = 2~5.5 V

•

Balanced propagation delays: t

pLH

Wide operating voltage range: V

Weight

Pin and function compatible with 74F257/258

DIP16-P-300-2.54A

SOP16-P-300-1.27A

SOL16-P-150-1.27

: 1.00 g (typ.)

: 0.18 g (typ.)

: 0.13 g (typ.)

2007-10-01

12 3 4 5 6 7...9

中文翻译

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