HD74ALVC162244 [HITACHI]

16-bit Buffer / Driver with 3-state Outputs; 16位缓冲器/驱动器与3态输出


型号：	HD74ALVC162244
厂家：	HITACHI SEMICONDUCTOR
描述：	16-bit Buffer / Driver with 3-state Outputs 16位缓冲器/驱动器与3态输出驱动器
文件：	总11页 (文件大小：54K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

HD74ALVC162244

16-bit Buffer / Driver with 3-state Outputs

ADE-205-204 (Z)

Preliminary

1st. Edition

January 1998

Description

The HD74ALVC162244 is designed specifically to improve both the performance and density of 3-state

memory address drivers, clock drivers, and bus oriented receivers and transmitters. The device can be used

as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. It provides true outputs and symmetrical OE

(active-low output-enable) inputs.

To ensure the high impedance state during power up or power down, OE should be tied to V_CCthrough a

pullup resistor; the minimum value of the resistor is determined by the current sinking capability of the

driver.

All outputs, which are designed to sink up to 12 mA, include equivalent 26 Ω resistors to reduce overshoot

and undreshoot.

Features

•

V_CC= 2.3 V to 3.6 V

Typical V_OLground bounce < 0.8 V (@V_CC= 3.3 V, Ta = 25°C)

Typical V_OHundershoot > 2.0 V (@V_CC= 3.3 V, Ta = 25°C)

High output current ±12 mA (@V_CC= 3.0 V)

All outputs have equivalent 26 Ω series resistors, so no external resistors are required

HD74ALVC162244

Function Table

Inputs

Output Y

H : High level

L : Low level

X : Immaterial

Z : High impedance

HD74ALVC162244

Pin Arrangement

2OE

1OE 1

1Y1 2

47 1A1

1A2

GND

1A3

1A4

1Y2

GND

1Y3

1Y4

V_CC

42 V_CC

41 2A1

2Y1 8

2Y2 9

2A2

GND

2A3

GND

2Y3

2Y4

3Y1

3Y2

GND

3Y3

3Y4

V_CC

4Y1

4Y2

GND

4Y3

4Y4

4OE

37 2A4

3A1

3A2

GND

33 3A3

3A4

V_CC

30 4A1

29 4A2

GND

4A3

4A4

3OE

(Top view)

HD74ALVC162244

Absolute Maximum Ratings

Item

Symbol

Ratings

–0.5 to 4.6

–0.5 to V_CC+0.5

–50

Unit

Conditions

Supply voltage

Input voltage ^*1

V_CC

V_I

Output voltage ^{*1, 2}

Input clamp current

Output clamp current

Continuous output current

V_CC, GND current / pin

V_O

I_IK

V_I< 0

I_OK

±50

V_O< 0 or V_O> V_CC

V_O= 0 to V_CC

I_O

±50

I_CCor I_GND

P_T

±100

Maximum power dissipation

0.85

TSSOP

at Ta = 55°C (in still air) ^*3

Storage temperature

T_stg

–65 to 150

°C

Notes:

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage

to the device. These are stress ratings only, and functional operation of the device at these or

any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute maximum rated conditions for extended periods may affect device

reliability.

1. The input and output negative voltage ratings may be exceeded if the input and output clamp

current ratings are observed.

2. This value is limited to 4.6 V maximum.

3. The maximum package power dissipation is calculated using a junction temperature of 150°C

and a board trace length of 750 mils.

Recommended Operating Conditions

Item

Symbol

V_CC

Min

2.3

Max

3.6

V_CC

–6

–8

–12

Unit

Conditions

Supply voltage

Input voltage

V_I

Output voltage

High level output current

V_O

I_OH

—

V_CC= 2.3 V

V_CC= 2.7 V

V_CC= 3.0 V

V_CC= 2.3 V

V_CC= 2.7 V

V_CC= 3.0 V

Low level output current

I_OL

Input transition rise or fall rate

Operating temperature

∆t / ∆v

ns / V

T_a

–40

°C

Note: Unused control inputs must be held high or low to prevent them from floating.

HD74ALVC162244

Logic Diagram

1OE

2OE

1A1

1Y1

1Y2

1Y3

1Y4

2A1

2Y1

1A2

2A2

2A3

2A4

2Y2

1A3

2Y3

1A4

2Y4

3OE

4OE

3A1

3Y1

3Y2

3Y3

3Y4

4A1

4Y1

3A2

4A2

4A3

4A4

4Y2

3A3

4Y3

3A4

4Y4

HD74ALVC162244

Electrical Characteristics (Ta = –40 to 85°C)

Item

Symbol V_CC(V)

Min

Max

—

Unit Test Conditions

Input voltage

V_IH

2.3 to 2.7 1.7

2.7 to 3.6 2.0

2.3 to 2.7 —

—

V_IL

0.7

0.8

—

2.7 to 3.6 —

Output voltage

V_OH

2.3 to 3.6 V_CC–0.2

I_OH= –100 µA

2.3

3.0

2.7

3.0

1.9

1.7

2.4

2.0

—

I_OH= –4 mA, V_IH= 1.7 V

I_OH= –6 mA, V_IH= 1.7 V

I_OH= –6 mA, V_IH= 2.0 V

I_OH= –8 mA, V_IH= 2.0 V

I_OH= –12 mA, V_IH= 2.0 V

I_OL= 100 µA

—

V_OL

2.3 to 3.6 —

0.2

0.4

0.55

0.6

0.8

±5

2.3

3.0

2.7

3.0

3.6

—

I_OL= 4 mA, V_IL= 0.7 V

I_OL= 6 mA, V_IL= 0.7 V

I_OL= 6 mA, V_IL= 0.8 V

I_OL= 8 mA, V_IL= 0.8 V

I_OL= 12 mA, V_IL= 0.8 V

V_IN= V_CCor GND

Input current

I_IN

µA

Off state output current

Quiescent supply current

I_OZ

±10

V_OUT= V_CCor GND

I_CC

∆I_CC

V_IN= V_CCor GND

3.0 to 3.6 —

750

V_IN= one input at (V_CC–0.6) V,

other inputs at V_CCor GND

HD74ALVC162244

Switching Characteristics (Ta = –40 to 85°C)

Item

Symbol V_CC(V) Min

Typ

Max

Unit FROM

(Input)

(Output)

Propagation delay time

t_PLH

t_PHL

2.5±0.2 1.0

2.7

—

3.0

6.0

7.0

4.9

4.7

4.2

6.8

6.7

5.6

6.3

5.7

5.5

—

3.3±0.3 1.0

2.5±0.2 1.0

Output enable time

Output disable time

t_ZH

t_ZL

2.7

—

3.3±0.3 1.0

2.5±0.2 1.0

t_HZ

t_LZ

2.7

—

3.3±0.3 1.0

Input capacitance

Output capacitance

C_IN

C_O

3.3

—

Control inputs

Data inputs

Outputs

—

HD74ALVC162244

Test Circuit

See under table

500 Ω

OPEN

GND

C_L= 50 pF

500 Ω

Load Circuit for Outputs

Vcc=2.7V,

Vcc=2.5±0.2V

OPEN

Symbol

3.3±0.3V

t_PLH/ t_PHL

t_ZH/ t_HZ

t_ZL/ t_LZ

OPEN

GND

6.0 V

2 × V_CC

Note:

1. C_Lincludes probe and jig capacitance.

HD74ALVC162244

Waveforms – 1

t_r

t_f

90 %

V_ref

90 %

V_ref

Input

Output

10 %

GND

t_PHL

t_PLH

V_OH

V_ref

V_OL

Waveforms – 2

t_f

t_r

90 %

V_ref

90 %

V_ref

Output

Control

10 %

t_ZL

10 %

GND

t_LZ

≈V_OH1

V_ref

Waveform - A

Waveform - B

ref1

V_OL

V_OH

t_ZH

t_HZ

ref2

V_ref

≈V_OL1

Vcc=2.7V,

Vcc=2.5±0.2V

TEST

V_IH

3.3±0.3V

V_CC

2.7 V

V_ref

1/2 V_CC

1.5 V

V_ref1

V_ref2

V_OH1

V_OL1

V_OL+0.15 V V_OL+0.3 V

V_OH–0.15 V V_OH–0.3 V

V_CC

3.0 V

GND

Notes:

1. All input pulses are supplied by generators having the following characteristics :

PRR ≤ 10 MHz, Zo = 50 Ω, t_r≤ 2.0 ns, t_f≤ 2.0 ns. (V_CC= 2.5±0.2 V)

PRR ≤ 10 MHz, Zo = 50 Ω, t_r≤ 2.5 ns, t_f≤ 2.5 ns. (V_CC= 2.7 V, 3.3±0.3 V)

2. Waveform – A is for an output with internal conditions such that the output is low except

when disabled by the output control.

3. Waveform – B is for an output with internal conditions such that the output is high except

when disabled by the output control.

4. The output are measured one at a time with one transition per measurement.

HD74ALVC162244

Package Dimensions

Unit : mm

+0.3

–0.1

12.50

0.50

0.08

+0.1

–0.05

0.20

8.10 ± 0.3

0.65 Max

10° Max

0.50 ± 0.1

0.10

Hitachi code

EIAJ code

JEDEC code

TTP-48DC

—

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

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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

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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

HD74ALVC162244 [HITACHI]

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