View HD74BC541A_145886.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

HD74BC541A
Octal Buffers/Line Drivers With 3 State Outputs
ADE-205-023 (Z) Rev. 0 June 1993 Description
The HD74BC541A 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 inverter drivers with three state outputs in a 20 pin package. When G1 and G2 is low level, this drivers set up output is enable.
Features
* * * * Input/Output are at high impedance state when power supply is off. Built in input pull up circuit can make input pins be open, when not used. Input is TTL level. Wide operating temperature range Ta = -40 to +85C
Function Table
Inputs G1 L L H X H L X Z : : : : High level Low level Immaterial High impedance G2 L L X H A L H X X Output Y L H Z Z
HD74BC541A
Pin Arrangement
G1 A1 A2 A3 A4 A5 A6 A7 A8 GND
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC G2 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8
(Top view)
Absolute Maximum Ratings
Item Supply voltage Input diode current Input voltage Output voltage Off state output voltage Storage temperature Note: Symbol VCC I IK VIN VOUT VOUT(off) Tstg Rating -0.5 to +7.0 30 -0.5 to +7.5 -0.5 to +7.5 -0.5 to +5.5 -65 to +150 Unit V mA V V V C
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.
2
HD74BC541A
Recommended Operating Conditions
Item Supply voltage Input voltage Ouput voltage Operating temperature Input rise/fall time* Note:
1
Symbol VCC VIN VOUT Topr t r , tf
Min 4.5 0 0 -40 0
Typ 5.0 -- -- -- --
Max 5.5 VCC VCC 85 8
Unit V V V C ns/V
1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics.
Logic Diagram
G1 G2 A1 A2 A3 A4 A5 A6 A7 A8 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8
3
HD74BC541A
Electrical Characteristics (Ta = -40 to +85C)
Item Input voltage Symbol VIH V Output voltage
IL
VCC(V)
Min 2.0 --
Max -- 0.8 -- -- 0.5 0.55 -1.2 -250 1.0 100 -225 50 -50 29.5 0.5 2.5 1.5
Unit V V V V V V V A A A mA A A mA mA mA mA
Test Conditions
VOH
4.5 4.5
2.4 2.0 -- -- -- -- -- -- -100 -- -- -- -- -- --
I OH = -3 mA I OH = -15 mA I OL = 48 mA I OL = 64 mA I IN = -18 mA VIN = 0 V VIN = 5.5 V VIN = 7.0 V VIN = 0 or 5.5 V VO = 2.7 V VO = 0.5 V VIN = VCC or GND All outputs is "L" VIN = VCC or GND All outputs is "H" VIN = VCC or GND All outputs is "Z" VIN = 3.4V or 0.5V
VOL
4.5 4.5
Input diode voltage Input current
VIK II
4.5 5.5 5.5 5.5
Short circuit output current* Off state output current
1
I OS I OZH I OZL
5.5 5.5 5.5 5.5 5.5 5.5 5.5
Supply current
I CCL I CCH I CCZ I CCT*2
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 CC increase at per one input pin.
4
HD74BC541A
Switching Characteristics (CL = 50 pF)
Ta = 25C VCC = 5.0 V Item Propagation delay time Symbol t PLH t PHL Output enable time t ZH t ZL Output disable time t HZ t LZ Input capacitance Output capacitance CIN CO Min 3.0 3.0 3.0 3.0 3.0 3.0 3.0 (Typ) 15.0 (Typ) Max 6.0 6.0 9.0 9.0 8.0 8.0 Ta = -40 to +85C VCC = 5.0 V 10% Min 3.0 3.0 3.0 3.0 3.0 3.0 -- -- Max 7.0 7.0 11.0 11.0 10.0 10.0 pF pF VIN = VCC or GND VO = VCC or GND ns ns Unit ns Test Conditions See under figure
Test circuit
VCC VCC
G1 Input See Function Table Output
*3
Pulse Generator Zout = 50
A1
Y1 CL = 50 pF
500 450 50 Scope
OPEN 7V
G2
Notes:
1. 2. 3.
CL includes probe and jig capacitance. A2-Y2 to A8-Y8 are identical to above load circuit. Open: tPLH, t PHL , t ZH , t HZ 7V: tZL, t LZ
5
HD74BC541A
Waveforms-1
tr Input A 90 % 1.5 V 10 % t PLH 1.5 V 90 % 1.5 V 10 % t PHL VOH Output Y 1.5 V VOL tf 3V 0V
Waveforms-2
tf Input G 90 % 1.5 V 10 % t ZL Waveform - A 1.5 V t ZH Waveform - B Notes: 1. 2. 3. 4. 1.5 V t HZ VOH - 0.3 V tr 90 % 1.5 V 10 % t LZ 3V
0V 3.5 V VOL + 0.3 V VOL VOH 0V
t r = 2.5 ns, tf = 2.5 ns Input waveforms: PRR = 1 MHz, duty cycle 50% Waveform-A shows input conditions such that the output is "L" level when enable by the output control. Waveform-B shows input conditions such that the output is "H" level when enable by the output control.
6
HD74BC541A
Package Dimensions
Unit: mm
7
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi's or any third party's patent, copyright, trademark, or other intellectual property rights for information contained in this document. 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 failsafes, 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 : http:semiconductor.hitachi.com/ Europe : http://www.hitachi-eu.com/hel/ecg Asia (Singapore) : http://www.has.hitachi.com.sg/grp3/sicd/index.htm Asia (Taiwan) : 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. 179 East Tasman Drive, San Jose,CA 95134 Tel: <1> (408) 433-1990 Fax: <1>(408) 433-0223 Hitachi Europe GmbH Electronic components Group Dornacher Strae 3 D-85622 Feldkirchen, Munich Germany Tel: <49> (89) 9 9180-0 Fax: <49> (89) 9 29 30 00 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 Hitachi Asia Pte. Ltd. 16 Collyer Quay #20-00 Hitachi Tower Singapore 049318 Tel: 535-2100 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 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 Telex: 40815 HITEC HX
Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.

▲Up To Search▲

Price & Availability of HD74BC541A

	To Download HD74BC541A Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .