HD74HC652P [HITACHI]

Registered Bus Transceiver, HC/UH Series, 1-Func, 8-Bit, True Output, CMOS, PDIP24, DP-24;


型号：	HD74HC652P
厂家：	HITACHI SEMICONDUCTOR
描述：	Registered Bus Transceiver, HC/UH Series, 1-Func, 8-Bit, True Output, CMOS, PDIP24, DP-24 光电二极管逻辑集成电路触发器
文件：	总9页 (文件大小：53K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

HD74HC651/HD74HC652

Octal Bus Transceivers/Registers (with inverted 3-state outputs)

Octal Bus Transceivers/Registers (with 3-state outputs)

ADE-205-519 (Z)

1st. Edition

Sep. 2000

Description

This device consists of bus transceiver circuits, D-type flip-flops, and control circuitry arranged for

multiplexed transmission of data directly from the data bus or from the internal storage registers. Enable

GAB and GBA are provided to cotrol the transceiver functions. Select AB and Select BA control pins are

provided to select whether real-time or stored data is transferred. A low input level selects real-time data,

and a high selects stored data. The following examples demonstrate the four fundamental bus-management

functions that can be performed with the HD74HC651 and HD74HC652.

Data on the A or B data bus, or both, can be stored in the internal D flip-flops by low-to high transition at

the appropriate clock pins (Clock AB or Clock BA) regardless of the select or enable control pins. When

Select AB and Select BA are in the real-time transfer mode, it is also possible to store data without using

the internal D-type flip-flops by simultaneously enabling Enable GAB and GBA. In this configuration

each output reinforces its input. Thus, when all other data sources to the two sets of bus lines are at high

impedance, each set of bus lines will remain at its last state.

Features

•

High Speed Operation: t_pd(Bus to Bus) = 16 ns typ (C_L= 50 pF)

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)

HD74HC651/HD74HC652

Function Table

Real-Time Transfer Real-Time Transfer

Transfer Stored

Bus B to Bus A

Bus A to Bus B

Storage

Data to A and/or B

Clock AB

L or H

Select AB

Enable GAB

Clock BA

L or H

Select BA

Enable GBA

Real-time transfer

Bus A to Bus B

Real-time transfer

Bus B to Bus A

HD74HC651/HD74HC652

Transfer stored data

to A and/or B

Storage

Pin Arrangement

Clock AB

24 V_CC

23 Clock BA

22 Select BA

21 Enable GBA

20 B₁

Select AB

Enable GAB

A₁

A₂

A₃

A₄

A₅

A₆

19 B₂

18 B₃

17 B₄

16 B₅

A₇10

A₈11

15 B₆

14 B₇

GND 12

13 B₈

(Top view)

HD74HC651/HD74HC652

Absolute Maximum Ratings

Item

Symbol

V_CC

Rating

Unit

Supply voltage range

Input voltage

–0.5 to +7.0

–0.5 to V_CC+ 0.5

±35

V_IN

Output voltage

V_OUT

I_OUT

I_CC, I_GND

I_IK

Output current

°C

DC current drain per V_CC, GND

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

Logic Diagram

HD74HC651

x 7

V_CC

CBA

V_CC

CAB

SBA

GBA

CBA

SAB

GAB

HD74HC651/HD74HC652

HD74HC652

x 7

V_CC

CBA

V_CC

CAB

CBA

SAB

GAB

SBA

GBA

HD74HC651/HD74HC652

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

HD74HC651/HD74HC652

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

2.0

4.5

6.0

2.0

4.5

6.0

2.0

4.5

6.0

2.0

4.5

6.0

2.0

4.5

6.0

—

170 —

215 ns

Clock to Bus

time

t_PHL

19 34

—

135 —

170 ns

Bus to Bus

16 27

—

190 —

240 ns

Select to Bus

18 38

—

Output enable

time

t_ZL

t_ZH

150 —

190 ns

14 30

—

Output disable

time

t_LZ

t_HZ

150 —

190 ns

18 30

—

100

125

—

Pulse width

Setup time

Hold time

t_w

t_su

t_h

—

100 —

—

–1

—

Output rise/fall

time

t_TLH

t_THL

—

Input capacitance Cin

HD74HC651/HD74HC652

Package Dimensions

Unit: mm

30.4

31.75 Max

1.3

0.88

7.62

1.90 Max

+ 0.11

– 0.05

0.25

2.54 ± 0.25

0.48 ± 0.10

0° – 15°

Hitachi Code

JEDEC

DP-24N

—

EIAJ

Conforms

1.84 g

Mass (reference value)

HD74HC651/HD74HC652

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

Asia

: http://semiconductor.hitachi.com/

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

: http://sicapac.hitachi-asia.com

Japan

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

For further information write to:

Hitachi Semiconductor

(America) Inc.

179 East Tasman Drive, Dornacher Straβe 3

Hitachi Europe GmbH

Electronic Components Group

Hitachi Asia Ltd.

Hitachi Tower

16 Collyer Quay #20-00,

Singapore 049318

Hitachi Asia (Hong Kong) Ltd.

Group III (Electronic Components)

7/F., North Tower,

San Jose,CA 95134

D-85622 Feldkirchen, Munich

World Finance Centre,

Tel: <1> (408) 433-1990 Germany

Fax: <1>(408) 433-0223 Tel: <49> (89) 9 9180-0

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

Tel : <65>-538-6533/538-8577

Fax : <65>-538-6933/538-3877

URL : http://www.hitachi.com.sg

Harbour City, Canton Road

Tsim Sha Tsui, Kowloon,

Hong Kong

Tel : <852>-(2)-735-9218

Fax : <852>-(2)-730-0281

URL : http://www.hitachi.com.hk

Hitachi Europe Ltd.

Electronic Components Group.

Whitebrook Park

Lower Cookham Road

Maidenhead

Hitachi Asia Ltd.

(Taipei Branch Office)

4/F, No. 167, Tun Hwa North Road,

Hung-Kuo Building,

Taipei (105), Taiwan

Berkshire SL6 8YA, United Kingdom

Tel: <44> (1628) 585000

Fax: <44> (1628) 585160

Tel : <886>-(2)-2718-3666

Fax : <886>-(2)-2718-8180

Telex : 23222 HAS-TP

URL : http://www.hitachi.com.tw

Colophon 2.0

HD74HC652P [HITACHI]

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