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HD74LVC374A
Octal D-type Flip Flops with 3-state Outputs
ADE-205-113B(Z) 3rd Edition December 1996 Description
The HD74 LVC374A has eight edge trigger 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 clock input goes low, data at the D inputs will be retained at the outputs until clock input 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 storage elements. Low voltage and high speed operation is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation.
Features
* * * * * * VCC = 2.0 V to 5.5 V All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) All outputs VOUT (Max.) = 5.5 V (@VCC = 0 V or output off state) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25 C) Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25C) High output current 24 mA (@VCC = 3.0 V to 5.5 V)
HD74LVC374A
Function Table
Inputs G H L L L H: L: X: Z: : Q0 : CK X L D X L H X Output Q Z L H Q0
High level Low level Immaterial High impedance Low to high transition Level of Q before the indicated steady input conditions were established.
Pin Arrangement
G1 1Q 2 1D 3 2D 4 2Q 5 3Q 6 3D 7 4D 8 4Q 9 GND 10
GQ CK D GQ CK D
20 VCC 19 8Q 18 8D 17 7D 16 7Q 15 6Q 14 6D 13 5D 12 5Q 11 CK
CK D GQ
CK D GQ
GQ CK D
GQ CK D
CK D GQ
CK D GQ
(Top view)
2
HD74LVC374A
Absolute Maximum Ratings
Item Supply voltage Input diode current Input voltage Output diode current Symbol VCC I IK VI I OK Ratings -0.5 to 6.0 -50 -0.5 to 6.0 -50 50 Output voltage VO -0.5 to VCC +0.5 -0.5 to 6.0 Output current VCC, GND current / pin Storage temperature IO I CC or IGND Tstg 50 100 -65 to +150 Unit V mA V mA mA V V mA mA C VO = -0.5 V VO = VCC+0.5 V Output "H" or "L" Output "Z" or VCC:OFF VI = -0.5 V Conditions
Note: 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 Symbol VCC Ratings 1.5 to 5.5 2.0 to 5.5 Input / output voltage VI VO 0 to 5.5 0 to V CC 0 to 5.5 Operating temperature Output current Ta I OH -40 to 85 -12 -24 I OL
*1 *2
Unit V V V V V C mA mA mA mA ns/V
Conditions Data hold At operation G, CK, D Output "H" or "L" Output "Z" or VCC:OFF
VCC = 2.7 V VCC = 3.0 V to 5.5 V VCC = 2.7 V VCC = 3.0 V to 5.5 V
12 24
*2
Input rise / fall time
t r, t f
10
Notes: 1. This item guarantees maximum limit when one input switches. Waveform : Refer to test circuit of switching characteristics. 2. duty cycle 50%
3
HD74LVC374A
Electrical Characteristics
Ta = -40 to 85C Item Input voltage Symbol VCC (V) VIH 2.7 to 3.6 4.5 to 5.5 VIL 2.7 to 3.6 4.5 to 5.5 Output voltage VOH 2.7 to 5.5 2.7 3.0 3.0 4.5 VOL 2.7 to 5.5 2.7 3.0 4.5 Input current Off state output current Output leak current I IN I OZ I OFF 0 to 5.5 2.7 to 5.5 0 2.7 to 3.6 2.7 to 5.5 I CC 3.0 to 3.6 Min 2.0 VCCx0.7 -- -- VCC-0.2 2.2 2.4 2.2 3.8 -- -- -- -- -- -- -- -- -- -- Max -- -- 0.8 VCCx0.3 -- -- -- -- -- 0.2 0.4 0.55 0.55 5.0 5.0 20 10 10 500 Unit Test Conditions V V V V V V V V V V V V V A A A A A A VIN = 5.5 V or GND VIN = VCC, GND VOUT = 5.5 V or GND VIN / V OUT = 5.5 V VIN / V OUT = 3.6 to 5.5 V VIN = VCC or GND VIN = one input at(VCC-0.6)V, other inputs at V CC or GND I OL = 100 A I OL = 12 mA I OL = 24 mA I OH = -24 mA I OH = -100 A I OH = -12 mA
Quiescent supply current I CC
4
HD74LVC374A
Switching Characteristics
Ta = -40 to 85C Item Maximum clock frequency Symbol VCC (V) f max 2.7 3.30.3 5.00.5 Propagation delay time t PLH t PHL 2.7 3.30.3 5.00.5 Output enable time t ZH t ZL 2.7 3.30.3 5.00.5 Output disable time t HZ t LZ 2.7 3.30.3 5.00.5 Setup time t su 2.7 3.30.3 5.00.5 Hold time th 2.7 3.30.3 5.00.5 Pulse width tw 2.7 3.30.3 5.00.5 Between output pins skew *1 t OSLH t OSHL 2.7 3.30.3 5.00.5 Input capacitance Output capacitance Note: CIN CO 2.7 2.7 Min 80.0 Typ -- Max -- Unit MHz MHz MHz ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns pF pF G Q G Q CK Q From (Input) To (Output)
100.0 150.0 -- 125.0 -- -- 1.5 -- -- 1.5 -- -- 1.5 -- 2.0 2.0 2.0 1.5 1.5 1.5 3.3 3.3 3.3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 3.0 15.0 -- 9.5 8.5 7.0 9.5 8.5 7.0 8.5 7.5 6.5 -- -- -- -- -- -- -- -- -- -- 1.0 1.0 -- --
1. This parameter is characterized but not tested. tosLH = | tPLHm - tPLHn |, tosHL = | tPHLm - tPHLn|
5
HD74LVC374A
Test Circuit
VCC VCC Output G Input See Function Table Pulse generator Zout = 50 Input Pulse generator Zout = 50 CK 1Q to 8Q CL = 50 pF 1D to 8D Symbol t PLH / t PHL t su / t h / t w t ZH/ t HZ t ZL / t LZ S1
Vcc=2.7V, 3.30.3V Vcc=5.00.5V
500 S1 450 50 Scope
OPEN
*1 See under table
GND
OPEN GND 6V
OPEN GND 2xVcc
Note:
1.
CL includes probe and jig capacitance.
Waveforms - 1
tr Input CK 10 % tr 90 % Input D 10 % t PLH Output Q Vref 10 % t PHL Vref VOL GND VOH 90 % 90 % Vref 10 % tf 90 % tf VIH Vref GND VIH
6
HD74LVC374A
Waveforms - 2
tr Input CK 10 % tw tsu Vref th VIH Input D Vref GND 90 % 90 % Vref Vref 10 % tw tf VIH Vref GND
Waveforms - 3
tf Input G 90 % Vref 10 % t ZL Waveform - A t ZH Waveform - B Vref Vref t HZ VOH - 0.3 V tr 90 % Vref 10 % t LZ VIH GND V OH1 VOL + 0.3 V VOL VOH V OL1 TEST VIH Vref VOH1 VOL1 Notes: 1. 2. 3. 4.
Vcc=2.7V, 3.30.3V Vcc=5.00.5V
2.7 V 1.5 V 3V GND
Vcc 50%Vcc Vcc GND
t r = 2.5 ns, tf = 2.5 ns Input waveform : PRR = 10 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.
7
Unit: mm
6.50 6.80 Max 20 11 4.40 1 10 0.65 0.20 0.06 *0.22+0.08 -0.07 0.13 M 0.65 Max *0.17 0.05 0.15 0.04 1.10 Max 0.07 +0.03 -0.04 0 - 8 0.50 0.10 1.0 6.40 0.20 0.10
*Dimension including the plating thickness Base material dimension
Hitachi Code JEDEC EIAJ Weight (reference value)
TTP-20DA -- -- 0.07 g
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.

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