Octal D-type Flip Flops with 3-state Outputs
ADE-205-113B(Z)3rd EditionDecember 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 theoutputs 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 thestate 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 timeoperation.
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 = 25°C)• High output current ±24 mA (@VCC = 3.0 V to 5.5 V)
HD74LVC374A
Function Table
Inputs
GHLLLH :L :X :Z :↑ :Q0 :
CKX↑↑L
DXLHX
Output QZLHQ0
High levelLow levelImmaterial
High impedance
Low to high transition
Level of Q before the indicated steady input conditions were established.
Pin Arrangement
G11Q21D32D42Q53Q63D74D84Q9GND10GQCKDGQCKD20VCC198Q188D177D167Q156Q146D135D125Q11CKCKDGQCKDGQGQCKDGQCKDCKDGQCKDGQ(Top view)Rev.3, Dec. 1996, page 2 of 10
HD74LVC374A
Absolute Maximum Ratings
Item
Supply voltageInput diode currentInput voltageOutput diode currentOutput voltageOutput currentVCC, GND current / pinStorage temperature
SymbolVCCIIKVIIOKVOIO
ICC or IGNDTstg
Ratings–0.5 to 6.0–50–0.5 to 6.0–5050
–0.5 to VCC +0.5–0.5 to 6.0±50100–65 to +150
UnitVmAVmAmAVVmAmA°C
VO = –0.5 VVO = VCC+0.5 VOutput \"H\" or \"L\"Output \"Z\" or VCC:OFFVI = –0.5 VConditions
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 voltageInput / output voltage
SymbolVCCVIVO
Operating temperatureOutput current
TaIOHIOL
Input rise / fall time *1
tr, tf
Ratings1.5 to 5.52.0 to 5.50 to 5.50 to VCC0 to 5.5–40 to 85–12–24*21224*210
UnitVVVVV°CmAmAmAmAns/V
VCC = 2.7 VVCC = 3.0 V to 5.5 VVCC = 2.7 VVCC = 3.0 V to 5.5 VConditionsData holdAt operationG, CK, DOutput \"H\" or \"L\"Output \"Z\" or VCC:OFF
Notes:1.This item guarantees maximum limit when one input switches.
Waveform : Refer to test circuit of switching characteristics.2.duty cycle ≤ 50%
Rev.3, Dec. 1996, page 3 of 10
HD74LVC374A
Electrical Characteristics
Ta = –40 to 85°C
ItemInput voltage
SymbolVCC (V)VIHVIL
Output voltage
VOH
2.7 to 3.64.5 to 5.52.7 to 3.64.5 to 5.52.7 to 5.52.73.03.04.5
VOL
2.7 to 5.52.73.04.5
Input current
Off state output currentOutput leak current
IINIOZIOFF
0 to 5.52.7 to 5.502.7 to 3.62.7 to 5.5
∆ICC
3.0 to 3.6
Min2.0——2.22.42.23.8——————————
Max—0.8
UnitTest ConditionsVVVVVVVVVVVVµAµAµAµAµAµA
VIN = 5.5 V or GNDVIN = VCC, GND
VOUT = 5.5 V or GNDVIN / VOUT = 5.5 VVIN / VOUT = 3.6 to 5.5 VVIN = VCC or GND
VIN = one input at(VCC–0.6)V,other inputs at VCC or GNDIOL = 100 µAIOL = 12 mAIOL = 24 mAIOH = –24 mAIOH = –100 µAIOH = –12 mA
VCC×0.7—
VCC×0.3V————0.20.40.550.55±5.0±5.020±1010500
VCC–0.2—
Quiescent supply currentICC
Rev.3, Dec. 1996, page 4 of 10
HD74LVC374A
Switching Characteristics
Ta = –40 to 85°C
Item
Maximum clockfrequency
SymbolVCC (V)fmax
2.73.3±0.35.0±0.5
Propagation delay time
tPLHtPHL
Output enable time
tZHtZL
Output disable time
tHZtLZ
Setup time
tsu
2.73.3±0.35.0±0.52.73.3±0.35.0±0.52.73.3±0.35.0±0.52.73.3±0.35.0±0.5
Hold time
th
2.73.3±0.35.0±0.5
Pulse width
tw
2.73.3±0.35.0±0.5
Between outputpins skew *1
tOSLHtOSHL
Input capacitanceOutput capacitanceNote:
CINCO
2.73.3±0.35.0±0.52.72.7
Min80.0
Typ—
Max—
UnitMHzMHzMHznsnsnsnsnsnsnsnsnsnsnsnsnsnsnsnsnsnsnsnsnspFpF
G
Q
G
Q
CK
Q
From (Input)To (Output)
100.0150.0—125.0——1.5——1.5——1.5—2.02.02.01.51.51.53.33.33.3—————
—————————————————————3.015.0
—9.58.57.09.58.57.08.57.56.5——————————1.01.0——
1.This parameter is characterized but not tested.tosLH = | tPLHm - tPLHn|, tosHL = | tPHLm - tPHLn|
Rev.3, Dec. 1996, page 5 of 10
HD74LVC374A
Test Circuit
VCCVCCOutputGInputPulse generatorΩZ = 50outInputPulse generatorΩZ = 50out1Q to 8Q500ΩS1450ΩC =L50 pF 50 ScopeΩ1D to 8DSymbolt / tPLHPHLCKt / t / tsuhwt / tZHHZt / tZLLZS1Vcc=2.7V,3.3±0.3VVcc=5.0±0.5V*1 See under tableOPENGNDSee Function TableOPENGND6 VOPENGND2×VccNote:1.CL includes probe and jig capacitance.Waveforms – 1
trInput CK10 %trInput D90 %10 %tPLHVref90 %90 %Vref10 %tf90 %10 %tPHLVrefVOLtfVIHVrefGNDVIHGNDVOHOutput QRev.3, Dec. 1996, page 6 of 10
HD74LVC374A
Waveforms – 2
trInput CK10 %tsuInput DVref90 %90 %VrefVreftwthVIHVrefGNDtfVIH10 %twVrefGNDWaveforms – 3
tfInput G90 %Vref10 %tZLWaveform - AtZHWaveform - BVrefVreftHZV – 0.3 VOHtrVref10 %90 %VIHGND≈VOH1V + 0.3 VOLVOLVOH≈VOL1TESTVIHVrefVOH1VOL1Vcc=2.7V,3.3±0.3VVcc=5.0±0.5VtLZ2.7 V1.5 V3 VGNDVcc50%VccVccGNDNotes:1.2.3.4.tr = 2.5 ns, tf = 2.5 nsInput waveform : PRR = 10 MHz, duty cycle 50%Waveform – A shows input conditions such that the output is \"L\" level when enable by theoutput control.Waveform – B shows input conditions such that the output is \"H\" level when enable by theoutput control.Rev.3, Dec. 1996, page 7 of 10
HD74LVC374A
Package Dimensions
Unit: mm12.6 13 Max 20111105.50.80 Max2.20 Max*0.22 ± 0.050.20 ± 0.047.80+ 0.20– 0.301.151.27*0.42 ± 0.080.40 ± 0.060.10 ± 0.100˚ – 8˚0.70 ± 0.200.150.12 M*Dimension including the plating thicknessBase material dimensionHitachi CodeJEDECEIAJMass (reference value)FP-20DA—Conforms0.31 gRev.3, Dec. 1996, page 8 of 10
HD74LVC374A
Unit: mm6.506.80 Max20111100.651.06.40 ± 0.200˚ – 8˚*0.22+0.08–0.070.20 ± 0.060.13M0.65 Max4.40*0.17 ± 0.050.15 ± 0.041.10 Max0.100.030.07+–0.040.50 ± 0.10*Dimension including the plating thicknessBase material dimensionHitachi CodeJEDECEIAJMass (reference value)TTP-20DA——0.07 gRev.3, Dec. 1996, page 9 of 10
HD74LVC374A
Disclaimer
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, includingintellectual 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 havereceived 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 highquality and reliability or where its failure or malfunction may directly threaten human life or cause riskof 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 particularlyfor maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when usedbeyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeablefailure 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 otherconsequential 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 withoutwritten approval from Hitachi.
7.Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductorproducts.
Sales Offices
Hitachi, Ltd.Semiconductor & Integrated Circuits.Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, JapanTel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109URLNorthAmerica : http://semiconductor.hitachi.com/Europe: http://www.hitachi-eu.com/hel/ecgAsia : http://sicapac.hitachi-asia.comJapan: http://www.hitachi.co.jp/Sicd/indx.htmFor further information write to:Hitachi Europe GmbHElectronic Components GroupDornacher Straße 3D-85622 Feldkirchen, MunichGermanyTel: <49> (89) 9 9180-0Fax: <49> (89) 9 29 30 00Hitachi Europe Ltd.Electronic Components Group.Whitebrook ParkLower Cookham RoadMaidenheadBerkshire SL6 8YA, United KingdomTel: <44> (1628) 585000Fax: <44> (1628) 585160Hitachi Asia Ltd. Hitachi Tower 16 Collyer Quay #20-00, Singapore 049318 Tel : <65>-538-6533/538-8577 Fax : <65>-538-6933/538-3877URL : http://www.hitachi.com.sgHitachi Asia Ltd. (Taipei Branch Office) 4/F, No. 167, Tun Hwa North Road, Hung-Kuo Building, Taipei (105), Taiwan Tel : <886>-(2)-2718-3666 Fax : <886>-(2)-2718-8180 Telex : 23222 HAS-TP URL : http://www.hitachi.com.tw 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 URL : http://www.hitachi.com.hkHitachi Semiconductor (America) Inc.179 East Tasman Drive,San Jose,CA 95134 Tel: <1> (408) 433-1990Fax: <1>(408) 433-0223Copyright Hitachi, Ltd., 2000. All rights reserved. Printed in Japan.Colophon 2.0Rev.3, Dec. 1996, page 10 of 10
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