HD74BC645ARP-EL [RENESAS]

BCT/FBT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, FP-20DB;


型号：	HD74BC645ARP-EL
厂家：	RENESAS TECHNOLOGY CORP
描述：	BCT/FBT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, FP-20DB 光电二极管输出元件
文件：	总10页 (文件大小：64K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

HD74BC645A

Octal Bus Transceivers With 3 State Outputs

ADE-205-027 (Z)

Rev.0

Feb. 1994

Description

The HD74BC645A provides high drivability and operation equal to or better than high speed bipolar

standard logic IC by using Bi-CMOS process. The device features low power dissipation that is about 1/5

of high speed bipolar logic IC. When the frequency is 10 MHz. The device has eight bus transceivers with

three state outputs in a 20 pin package. Each device has an active low enable input (G) and a direction

control input, DiR. When DiR is high, data flows from the A inputs to the B outputs. When DiR is high,

data flows from the B inputs to the A outputs. When enable inputs (G) is high, disables both A and B ports

by placing then in a high impedance.

Features

•

Input/Output are at high impedance state when power supply is off.

Input pins can be open, when not used, owing to built in input pull up circuit.

Input is TTL level.

Wide operating temperature range

Ta = –40 to +85°C.

Function Table

Control Inputs

DIR

Operation

B data to A bus

A data to B bus

H :

High level

Low level

Immaterial

High impedance

HD74BC645A

Pin Arrangement

V_CC

DiR

GND

(Top view)

Absolute Maximum Ratings

Item

Symbol

V_CC

Rating

Unit

Supply voltage

Input diode current

Input voltage

–0.5 to +7.0

±30

I_IK

V_IN

–0.5 to +7.5

–0.5 to +5.5

–65 to +150

Output voltage

Off state output voltage

Storage temperature

V_OUT

V_OUT(off)

Tstg

°C

Note: 1. The absolute maximum ratings are values which must not individually be exceeded, and

furthermore, no two of which may be realized at the same time.

HD74BC645A

Recommended Operating Conditions

Item

Symbol

V_CC

Min

4.5

Typ

5.0

—

Max

5.5

V_CC

Unit

Supply voltage

Input voltage

V_IN

Ouput voltage

Operating temperature

Input rise/fall time*¹

V_OUT

Topr

t_r, t_f

—

–40

—

°C

ns/V

—

Note: 1. This item guarantees maximum limit when one input switches.

Waveform: Refer to test circuit of switching characteristics.

Logic Diagram

DiR

HD74BC645A

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

Item

Symbol

V_IH

V_CC(V)

Min

2.0

—

Max

—

Unit

Test Conditions

Input voltage

V_IL

0.8

Output voltage

V_OH

4.5

5.5

2.4

2.0

—

I_OH= –3 mA

—

I_OH= –15 mA

V_OL

0.5

I_OL= 48 mA

—

0.55

–1.2

–250

100

1.0

I_OL= 64 mA

Input diode voltage

Input current

V_IK

I_I

—

I_IN= –18 mA

—

µA

V_IN= 0 V

—

An or Bn, V_IN= 5.5 V

DiR or G, V_IN= 5.5 V

DiR or G, V_IN= 7 V

V_O= 0 V, V_IN= 0 or 5.5 V

V_O= 2.7 V

—

100

–225

–100

–250

31.5

Output short circuit current*¹

Off state output current

I_OS

–100

—

I_OZH

I_OZL

I_CCL

—

V_O= 0.5 V

Supply current

—

V_IN= 0 or 5.5 V

All outputs is “L”

I_CCH

5.5

—

0.5

4.5

1.5

V_IN= 0 or 5.5 V

All outputs is “H”

I_CCZ

V_IN= 0 or 5.5 V

All outputs is “Z”

I_CCT

V_IN= 3.4 or 0.5 V

Notes: 1. Not more than one output should be shorted at a time and duration of the short circuit should not

exceed one second.

2. When input by the TTL level, it shows I_CCincrease at per one input pin.

HD74BC645A

Switching Characteristics (C_L= 50 pF)

Ta = 25°C

Ta = –40 to +85°C

V_CC= 5.0 V ±10%

_CC= 5.0 V

Item

Symbol Min

Max

6.0

9.0

8.0

Min

3.0

—

Max

7.0

Unit Test Conditions

Propagation delay time

t_PLH

t_PHL

t_PLH

t_PHL

t_ZH

3.0

An to Bn

Bn to An

G to Bn

G to An

G to Bn

G to An

3.0

7.0

3.0

7.0

3.0

7.0

Output enable time

Output disable time

3.0

11.0

10.0

t_ZL

3.0

t_ZH

3.0

t_ZL

3.0

t_HZ

3.0

t_LZ

3.0

t_HZ

3.0

t_LZ

3.0

Input capacitance

Output capacitance

C_IN

C_I/O

3.0 (Typ)

15.0 (Typ)

V_IN= V_CCor GND

V_I/O= V_CCor GND

—

HD74BC645A

Test Circuit

V_CC

Output

Input

OPEN ^*4

500 Ω

450 Ω

Pulse

Generator

Z_out= 50 Ω

C_L=

50 Ω

Scope

50 pF

DIR

Notes:

1. C_Lincludes probe and jig capacitance.

2. A2-B2 to A8-B8 are identical to above load circuit.

3. S1: Input-Output change switch.

4. Open: t_PLH, t_PHL, t_ZHt_HZ

7 V: t_ZL, t_LZ

Waveforms-1

t_r

t_f

3 V

0 V

90 %

1.5 V

90 %

1.5 V

Input

10 %

t_PHL

t_PLH

V_OH

1.5 V

Output

V_OL

HD74BC645A

Waveforms-2

t_f

t_r

3 V

90 %

1.5 V

10 %

90 %

1.5 V

10 %

0 V

t_ZL

t_LZ

3.5 V

Waveform – A

1.5 V

t_ZH

V_OL+ 0.3 V

V_OL

V_OH

t_HZ

V_OH– 0.3 V

1.5 V

Waveform – B

0 V

Notes: 1. t_r= 2.5 ns, t_f= 2.5 ns

2. Input waveforms: PRR = 1 MHz, duty cycle 50%

3. Waveform-A shows input conditions such that the output is “L” level when enable by the output

control.

4. Waveform-B shows input conditions such that the output is “H” level when enable by the output

control.

HD74BC645A

Package Dimensions

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

1.26 g

Mass (reference value)

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

Hitachi Code

JEDEC

FP-20DA

—

EIAJ

Conforms

0.31 g

*Dimension including the plating thickness

Base material dimension

Mass (reference value)

HD74BC645A

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

Mass (reference value)

0.52 g

Unit: mm

6.50

6.80 Max

0.65

1.0

+0.08

*0.22

0.20 ± 0.06

–0.07

0.13

6.40 ± 0.20

0.65 Max

0° – 8°

0.50 ± 0.10

0.10

Hitachi Code

JEDEC

TTP-20DA

—

EIAJ

—

0.07 g

*Dimension including the plating thickness

Base material dimension

Mass (reference value)

HD74BC645A

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

HD74BC645ARP-EL [RENESAS]

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