HD74AC123ARP [HITACHI]

Monostable Multivibrator, CMOS, PDSO16, FP-16DN;


型号：	HD74AC123ARP
厂家：	HITACHI SEMICONDUCTOR
描述：	Monostable Multivibrator, CMOS, PDSO16, FP-16DN 时钟光电二极管逻辑集成电路
文件：	总9页 (文件大小：47K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

HD74AC123A

Dual Retriggerable Resettable Multivibrator

Description

Each half of the HD74AC123A features retriggerable capability, complementary dc level triggering and

overriding Direct Clear. When a circuit is in the quasi-stable (delay) state, another trigger applied to the

inputs (per the Truth Table) will cause the delay period to start again, without disturbing the outputs. By

repeating this process, the output pulse period (Q High, Q Low) can be made as long as desired.

Alternatively, a delay period can be terminated at any time by a Low signal on C_D, which also inhibits

triggering. An internal connection from C_Dto the input gate makes it possible to trigger the circuit by a

positive-going signal on C_D, as shown in the Truth Table. For timing capacitor values greater than 1000

pF, the output pulse width is defined as follows.

Where t_wis in ns, R_Xis in k and C _Xis in pF.

t_w= R_XC_X

Feature

•

Outputs Source/Sink 24 mA

HD74AC123A

Pin Arrangement

A₁

B₁

16 V_CC

15 R_X1C_X1

14 C_X1

13 Q₁

C_D1

Q₁

Q₂

12 Q₂

C_X2

11 C_D2

10 B₂

R_X2C_X2

GND

A₂

(Top view)

Logic Symbol

(15) (14)

R_XC_X

C_X

5(13)

12(4)

9(1)

10(2)

C_D

(3)

_CC= Pin16

GND = Pin8

HD74AC123A

Pin Names

A₁, A₂

B₁, B₂

Trigger Inputs (Active Falling Edge)

Trigger Inputs (Active Rising Edge)

C_D1, C_D2Direct Clear Inputs (Active Low)

Q₁, Q₂

Positive Pulse Outputs

Q₁, Q₂

Negative Pulse Outputs

Triggering Truth Table

Inputs

C_D

Response

No trigger

Trigger

No trigger

Trigger

H :

High Voltage Level

Low Voltage Level

Immaterial

Low-to-High Transition

High-to-Low Transition

DC Characteristics (unless otherwise specified)

Item

Symbol Max

Unit

Condition

Maximum quiescent supply current

I_CC

µA

V_IN= V_CCor ground, V_CC= 5.5 V,

Ta = Worst case

Maximum quiescent supply current

I_CC

8.0

µA

V_IN= V_CCor ground, V_CC= 5.5 V,

Ta = 25°C

HD74AC123A

AC Characteristics: HD74AC123A

Ta = –40°C

to +85°C

C_L= 50 pF

Ta = +25°C

C_L= 50 pF

Item

Symbol V_CC(V)*¹Min

Typ

Max

19.0

15.0

19.0

15.0

12.0

15.0

12.0

Min

1.0

Max

Unit Condition

Propagation delay

A or B to Q

t_PLH

t_PHL

t_PLH

t_PHL

3.3

5.0

3.3

5.0

3.3

5.0

3.3

5.0

1.0

—

22.0

17.0

22.0

17.0

18.0

13.5

18.0

13.5

Cext = 0 pF

—

Rest = 5 kΩ

Propagation delay

A or B to Q

Propagation delay

_Dnto Q

Propagation delay

_Dnto Q

Note: 1. Voltage Range 3.3 is 3.3 V ± 0.3 V

Voltage Range 5.0 is 5.0 V ± 0.5 V

AC Operating Requirements: HD74AC123A

Ta = –40

Ta = +25°C

to +85°C

C_L= 50 pF

Item

Symbol V_CC(V)*¹Typ

Guaranteed Minimum

Unit Condition

Pulse width

A or B or C_Dn

Recovery time

t_w

3.3

5.0

3.3

5.0

—

5.0

4.5

2.0

7.0

5.0

2.0

Cext = 0 pF

Rext = 5 kΩ

t_rec

_Dnto A or B

Note: 1. Voltage Range 3.3 is 3.3 V ± 0.3 V

Voltage Range 5.0 is 5.0 V ± 0.5 V

HD74AC123A

Ta = –40°C

to +85°C

Ta = +25°C

C_L= 50 pF

Item

Output pulse width T_WQ

Symbol V_CC(V)*¹Min

Typ

Max

—

Min

—

Max

Unit Condition

3.3

5.0

3.3

5.0

—

Cext = 0.1 µF

Rext = 10 kΩ

Cext = 28 pF

Rext = 2 kΩ

0.90

190

160

—

1.10

350

300

0.85

170

140

1.15

380

330

Minimum output

pulse width

T_WQ(min)

Note: 1. Voltage Range 3.3 is 3.3 V ± 0.3 V

Voltage Range 5.0 is 5.0 V ± 0.5 V

Cext and Rext should be connected as close to the IC terminals as possible, in order to prevent malfunction.

Unit: mm

19.20

20.00 Max

1.3

1.11 Max

7.62

+ 0.13

– 0.05

0.25

2.54 ± 0.25

0.48 ± 0.10

0° – 15°

Hitachi Code

DP-16

JEDEC

EIAJ

Conforms

Weight (reference value) 1.07 g

Unit: mm

10.06

10.5 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

EIAJ

FP-16DA

—

Conforms

*Dimension including the plating thickness

Base material dimension

Weight (reference value) 0.24 g

Unit: mm

9.9

10.3 Max

1.27

+ 0.10

6.10

– 0.30

1.08

0.635 Max

0° – 8°

+ 0.67

0.60

– 0.20

*0.42 ± 0.08

0.40 ± 0.06

0.15

0.25

Hitachi Code

JEDEC

EIAJ

FP-16DN

Conforms

*Dimension including the plating thickness

Base material dimension

Weight (reference value) 0.15 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

HD74AC123ARP [HITACHI]

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