HD74HC443 [HITACHI]

Quad. Tridirectional Bus Transceiver(with noninverted/inverted 3-state outputs); 四。 Tridirectional总线收发器（与同相/反转3态输出）


型号：	HD74HC443
厂家：	HITACHI SEMICONDUCTOR
描述：	Quad. Tridirectional Bus Transceiver(with noninverted/inverted 3-state outputs) 四。 Tridirectional总线收发器（与同相/反转3态输出）总线收发器
文件：	总12页 (文件大小：84K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

HD74HC442/HD74HC443/HC74HC444

Quad. Tridirectional Bus Transceiver

(with noninverted 3-state outputs)

Quad. Tridirectional Bus Transceiver

(with inverted 3-state outputs)

Quad Tridirectional Bus Transceiver

(with noninverted/inverted 3-state outputs)

Description

These bus transceivers are designed for a synchronous three-way communication between four-line data

buses. They give the designer a choice of selecting inverting, noninverting or a combination of inverting

and noninverting data paths with 3-state outputs.

The S₀and S₁inputs select the bus from which data are to be transferred. The G inputs enable the bus or

buses to which data are to be transferred. The port for any bus selected for input and any other bus not

enabled for output will be at high impedance.

Features

•

High Speed Operation

High Output Current: Fanout of 15 LSTTL Loads

Wide Operating Voltage: V_CC= 2 to 6 V

Low Input Current: 1 µA max

Low Quiescent Supply Current: I_CC(static) = 4 µA max (Ta = 25°C)

HD74HC442/HD74HC443HD74HC444

Function Table

Inputs

Transfers Between Buses

S₁

S₀

HD74HC442

None

HD74HC443

None

HD74HC444

None

A → B, A → C

B → C, B → A

C → A, C → B

A → B

A → B, A → C

B → C, B → A

C → A, C → B

A → B

A → B, A → C

B → C, B → A

C → A, C → B

A → B

B → C

C → A

A → C

B → A

C → B

HD74HC442/HD74HC443/HD74HC444

Pin Arrangement

20 VCC

19 GC

17 GA

16 A1

13 A4

11 S0

GND

(Top view)

Absolute Maximum Ratings

Item

Symbol

Rating

Unit

Supply voltage range

Input voltage

V_CC

V_IN

–0.5 to +7.0

–0.5 to V_CC+ 0.5

±35

Output voltage

V_OUT

I_OUT

I_CC, I_GND

I_IK

Output current

°C

DC current drain per V_CCGND

DC input diode current

DC output diode current

Power Dissipation per package

Storage temperature

±75

±20

I_OK

±20

P_T

500

Tstg

–65 to +150

HD74HC442/HD74HC443HD74HC444

Logic Diagram

HD74HC442

S0 S1

GA GH GC CS

HD74HC442/HD74HC443/HD74HC444

HD74HC443

S0 S1

GA GH GC CS

HD74HC442/HD74HC443HD74HC444

HD74HC444

S0 S1

GA GH GC CS

HD74HC442/HD74HC443/HD74HC444

DC Characteristics

Ta = –40 to

Ta = 25°C

+85°C

Item

Symbol V_CC(V) Min Typ Max Min Max Unit Test Conditions

Input voltage

V_IH

2.0

4.5

6.0

2.0

4.5

6.0

2.0

4.5

6.0

4.5

6.0

2.0

4.5

6.0

4.5

6.0

1.5

—

0.5

1.5

3.15

4.2

—

3.15 —

—

4.2

—

V_IL

0.5

1.35

1.8

—

1.35 —

1.8

—

Output voltage

V_OH

1.9 2.0

4.4 4.5

5.9 6.0

4.18 —

5.68 —

1.9

4.4

5.9

4.13

5.63

—

Vin = V_IHor V_ILI_OH= –20 µA

—

I_OH= –6 mA

I_OH= –7.8 mA

—

V_OL

—

0.0 0.1

0.1

0.33

Vin = V_IHor V_ILI_OL= 20 µA

—

0.26 —

I_OL= 6 mA

I_OL= 7.8 mA

Off-state output

current

I_OZ

Iin

±0.5 —

±5.0 µA

Vin = V_IHor V_IL,

Vout = V_CCor GND

Input current

6.0

—

±0.1 —

±1.0 µA

Vin = V_CCor GND

Quiescent supply I_CC

current

4.0

—

µA

Vin = V_CCor GND, Iout = 0 µA

HD74HC442/HD74HC443HD74HC444

AC Characteristics (C_L= 50 pF, Input t_r= t_f= 6 ns)

Ta = –40 to

+85°C

Ta = 25°C

Symbol V_CC(V) Min Typ Max Min Max Unit Test Conditions

Item

Propagation delay t_PLH

2.0

4.5

6.0

2.0

4.5

6.0

2.0

4.5

6.0

2.0

4.5

6.0

—

200 —

250 ns

time

t_PHL

—

Output enable

time

t_ZH

t_ZL

150 —

190 ns

—

Output disable

time

t_HZ

t_LZ

150 —

190 ns

—

Output rise/fall

time

t_TLH

t_THL

Input capacitance Cin

Unit: mm

24.50

25.40 Max

1.30

0.89

7.62

1.27 Max

+ 0.11

– 0.05

0.25

2.54 ± 0.25

0.48 ± 0.10

0° – 15°

Hitachi Code

JEDEC

EIAJ

DP-20N

—

Conforms

Weight (reference value) 1.26 g

Unit: mm

12.6

13 Max

+ 0.20

7.80

– 0.30

0.80 Max

1.15

0° – 8°

1.27

0.70 ± 0.20

*0.42 ± 0.08

0.40 ± 0.06

0.15

0.12 M

Hitachi Code

JEDEC

FP-20DA

—

EIAJ

Conforms

*Dimension including the plating thickness

Base material dimension

Weight (reference value) 0.31 g

Unit: mm

12.8

13.2 Max

+ 0.25

– 0.40

10.40

0.935 Max

1.45

0° – 8°

+ 0.57

– 0.30

1.27

0.70

*0.42 ± 0.08

0.40 ± 0.06

0.15

0.12

Hitachi Code

JEDEC

EIAJ

FP-20DB

Conforms

—

*Dimension including the plating thickness

Base material dimension

Weight (reference value) 0.52 g

Cautions

1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,

Hitachi bears no responsibility for problems that may arise with third party’s rights, including

intellectual property rights, in connection with use of the information contained in this document.

2. Products and product specifications may be subject to change without notice. Confirm that you have

received the latest product standards or specifications before final design, purchase or use.

3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,

contact Hitachi’s sales office before using the product in an application that demands especially high

quality and reliability or where its failure or malfunction may directly threaten human life or cause risk

of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,

traffic, safety equipment or medical equipment for life support.

4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly

for maximum rating, operating supply voltage range, heat radiation characteristics, installation

conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used

beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable

failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-

safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other

consequential damage due to operation of the Hitachi product.

5. This product is not designed to be radiation resistant.

6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without

written approval from Hitachi.

7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor

products.

Hitachi, Ltd.

Semiconductor & Integrated Circuits.

Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan

Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109

URL

NorthAmerica

Europe

: http:semiconductor.hitachi.com/

: http://www.hitachi-eu.com/hel/ecg

Asia (Singapore)

Asia (Taiwan)

: http://www.has.hitachi.com.sg/grp3/sicd/index.htm

: http://www.hitachi.com.tw/E/Product/SICD_Frame.htm

Asia (HongKong) : http://www.hitachi.com.hk/eng/bo/grp3/index.htm

Japan

: http://www.hitachi.co.jp/Sicd/indx.htm

For further information write to:

Hitachi Semiconductor

(America) Inc.

Hitachi Europe GmbH

Hitachi Asia (Hong Kong) Ltd.

Group III (Electronic Components)

7/F., North Tower, World Finance Centre,

Harbour City, Canton Road, Tsim Sha Tsui,

Kowloon, Hong Kong

Tel: <852> (2) 735 9218

Fax: <852> (2) 730 0281

Hitachi Asia Pte. Ltd.

16 Collyer Quay #20-00

Hitachi Tower

Singapore 049318

Tel: 535-2100

Electronic components Group

Dornacher Stra§e 3

D-85622 Feldkirchen, Munich

Germany

Tel: <49> (89) 9 9180-0

Fax: <49> (89) 9 29 30 00

179 East Tasman Drive,

San Jose,CA 95134

Tel: <1> (408) 433-1990

Fax: <1>(408) 433-0223

Fax: 535-1533

Hitachi Asia Ltd.

Taipei Branch Office

3F, Hung Kuo Building. No.167,

Tun-Hwa North Road, Taipei (105)

Tel: <886> (2) 2718-3666

Fax: <886> (2) 2718-8180

Telex: 40815 HITEC HX

Hitachi Europe Ltd.

Electronic Components Group.

Whitebrook Park

Lower Cookham Road

Maidenhead

Berkshire SL6 8YA, United Kingdom

Tel: <44> (1628) 585000

Fax: <44> (1628) 778322

HD74HC443 [HITACHI]

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