tc74hc251af TOSHIBA Semiconductor CORPORATION, tc74hc251af Datasheet

tc74hc251af

Manufacturer Part Number

tc74hc251af

Description

8-channel Multiplexer

Manufacturer

TOSHIBA Semiconductor CORPORATION

Datasheet

1.TC74HC251AF.pdf (9 pages)

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8-Channel Multiplexer (3-state)

MULTIPLEXER fabricated with silicon gate C

LSTTL while maintaining the CMOS low power dissipation.

of the address input (A, B, C). The selected data appears on two

outputs; non-inverting (Y) and inverting (W). When the strobe

input is held high, both outputs are in the high-impedance state.

discharge or transient excess voltage.

Features

•

Pin Assignment

The TC74HC251A is a high speed CMOS 8-CHANNEL

It achieves the high speed operation similar to equivalent

One of eight date input signals (D0-D7) is selected by decoding

All inputs are equipped with protection circuits against static

High speed: t

Low power dissipation: I

High noise immunity: V

Output drive capability: 10 LSTTL loads

Symmetrical output impedance: |I

Balanced propagation delays: t

Wide operating voltage range: V

Pin and function compatible with 74LS251

TC74HC251AP

= 15 ns (typ.) at V

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

NIH

= 4 μA (max) at Ta = 25°C

= V

pLH

NIL

∼ − t

(opr) = 2~6 V

= 28% V

= 5 V

| = I

pHL

MOS technology.

= 4 mA (min)

(min)

TC74HC251AF

Weight

DIP16-P-300-2.54A

SOP16-P-300-1.27A

TC74HC251AP

TC74HC251AF

TC74HC251AP/AF

: 1.00 g (typ.)

: 0.18 g (typ.)

2007-10-01

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tc74hc251af Summary of contents

Page 1

... Wide operating voltage range: V • Pin and function compatible with 74LS251 Pin Assignment TC74HC251AF , MOS technology 28% V (min) NIL (min ∼ − t pLH pHL (opr TC74HC251AP/AF TC74HC251AP TC74HC251AF Weight DIP16-P-300-2.54A : 1.00 g (typ.) SOP16-P-300-1.27A : 0.18 g (typ.) 2007-10-01 ...

Page 2

IEC Logic Symbol Truth Table Inputs Select Strobe ...

Page 3

System Diagram TC74HC251AP/AF 3 2007-10-01 ...

Page 4

Absolute Maximum Ratings (Note 1) Characteristics Supply voltage range DC input voltage DC output voltage Input diode current Output diode current DC output current DC V /ground current CC Power dissipation Storage temperature Note 1: Exceeding any of the absolute ...

Page 5

Electrical Characteristics DC Characteristics Characteristics Symbol High-level input V IH voltage Low-level input V IL voltage High-level output V OH voltage Low-level output V OL voltage 3-state off leak I OZ current Input leakage I IN current Quiescent supply I ...

Page 6

AC Characteristics = 50 pF, input Characteristics Symbol t TLH Output transition time t THL Propagation delay t pLH time t pHL (D-Y) Propagation delay t pLH time t pHL (D-W) Propagation delay t pLH time t ...

Page 7

Package Dimensions Weight: 1.00 g (typ.) TC74HC251AP/AF 7 2007-10-01 ...

Page 8

Package Dimensions Weight: 0.18 g (typ.) TC74HC251AP/AF 8 2007-10-01 ...

Page 9

RESTRICTIONS ON PRODUCT USE • The information contained herein is subject to change without notice. • TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to ...

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