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HD74BC574A
Octal D Type Flip Flops With 3 State Outputs
ADE-205-042 (Z) Rev. 0 June 1993 Description
The HD74BC574A 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 edge triger D type flip flops with three state outputs in a 20 pin package. Data at the D inputs meeting set up requirements, are transferred to the Q outputs on positive going transitions of the clock input. When the latch enable goes low, data at the D inputs will be retained at the outputs until latch enable returns high again. When a high logic level is applied to the output control input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the strage elements.
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. TTL level input Wide operating temperature range Ta = -40 to + 85C
HD74BC574A
Function Table
Inputs Output Control L L L H H L X Z : : : : : Q0 : High level Low level Immaterial High impedance Low to high transition Level of Q before the indicated steady state input conditions were established. L X CK D H L X X Output Q H L Q0 Z
Pin Arrangement
Output Control 1D 2D 3D 4D 5D 6D 7D 8D GND
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q CK
(Top view)
2
HD74BC574A
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.
Recommended Operating Conditions
Item Supply voltage Input voltage Output voltage Operating temperature Input rise/fall time* Note:
1
Symbol VCC VIN VOUT Topr t r, t f
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.
3
HD74BC574A
Logic Diagram
Output Control 1D DQ CK 1Q
2D
DQ CK
2Q
3D
DQ CK
3Q
4D
DQ CK
4Q
8D CK
DQ CK
8Q
4
HD74BC574A
Electrical Characteristics (Ta = -40C to +85C)
Item Input voltage Symbol VIH VIL Output voltage VOH 4.5 4.5 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
VCC (V)
Min 2.0 -- 2.4 2.0 -- -- -- -- -- -- -100 -- -- -- -- -- --
Max -- 0.8 -- -- 0.4 0.5 -1.2 -250 1.0 100 -225 50 -50 29.5 2.5 2.5 1.5
Unit V V V V V V V A A A mA A A mA mA mA mA
Test Conditions
I OH = -3 mA I OH = -15 mA I OL = 24 mA I OL = 48 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 = 0 or 5.5 V All outputs is "L" VIN = 0 or 5.5 V All outputs is "H" VIN = 0 or 5.5 V All outputs is "Z" VIN = 3.4 or 0.5 V
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.
5
HD74BC574A
Switching Test Method (CL = 50 pF)
Ta = 25C VCC = 5.0 V Item Propagation delay time Output enable time Symbol CK Q t PLH t PHL t ZH t ZL Output disable time t HZ t LZ Setup time t s (H) t s (L) Hold time t h(H) t h(L) Pulse width t W (H) t W (L) Input capacitance Output capacitance CIN CO Min 3.0 3.0 3.0 3.0 3.0 3.0 2.0 2.0 2.0 2.0 6.0 6.0 Max 8.0 8.0 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 2.0 2.0 2.0 2.0 6.0 6.0 -- -- Max 10.0 10.0 11.0 11.0 10.0 10.0 -- -- -- -- -- -- pF pF VIN = VCC or GND VO = VCC or GND ns ns ns ns ns Unit ns Test conditions See under figure
3.0 (Typ) -- 15.0 (Typ)
Test Circuit
VCC Output Input Pulse Generator Zout = 50 Pulse Generator Zout = 50 See Function Table OC 1Q to 8Q 1D to 8D CL = 50 pF 450 50 Scope 500 *2 OPEN 7V
VCC
Input
CK
Notes:
1. 2.
CL includes probe and jig capacitance. OPEN: t PLH , t PHL , t ZH , t HZ ,th, t s tw 7 V: t ZL, t LZ
6
HD74BC574A
Waveforms-1
tr 90% 1.5 V 10% tr 90% Input D 10% t PLH 90% 10% t PHL VOH Output Q 1.5 V 1.5 V VOL 90% 1.5 V 10% tf 3V tf 3V 1.5 V 0V
Input CK
0V
Waveforms-2
tr 90% 1.5 V 10% ts tw th 3V Input D 1.5 V 1.5 V 0V 90% 1.5 V 10%
tf 3V
Input CK
0V
7
HD74BC574A
Waveforms-3
tf 90% 1.5 V 10% t ZL
tr 90% 1.5 V 10% t LZ 3.5 V 3V
Output Control
0V
Waveform-A t ZH
1.5 V VOL + 0.3 V t HZ VOH VOL
VOH - 0.3 V Waveform-B 1.5 V
0V
Notes: 1. tr = 2.5 ns, tf = 2.5 ns 2. Input waveform: 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.
8
HD74BC574A
Package Dimensions
Unit: mm
9
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
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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.

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