HD74HCT244FPEL中文资料

TEST CONDITIONS
Tamb (°C)
SYMBOL PARAMETER
OTHER
25
−40 to +85 −40 to +125 UNIT
VCC (V)
MIN. TYP. MAX. MIN. MAX. MIN. MAX.
VIH
HIGH-level input
voltage
2.0
1.5 −
−
For TSSOP packages: above 60 °C the value of PD derates linearly with 5.5 mW/K.
1999 Sep 28
5
元器件交易网
Philips Semiconductors
Octal buffer/line driver; 3-state

CO
output capacitance
4.0 4.0 pF
CPD
power dissipation CL = 50 pF;
10
12
pF
capacitance
f = 1 MHz;
notes 1 and 2
Notes 1. CPD is used to determine the dynamic power dissipation (PD in µW).
IO
DC output source or sink current −0.5 V < VO < VCC + 0.5 V
ICC
DC VCC or GND current
Tstg
storage temperature range
PD
power dissipation per package for temperature range: −40 to +125 °C; note 2

HD74AC244/HD74ACT244Octal Buffer/Line Driver with 3-State OutputDescriptionThe HD74AC244/HD74ACT244 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus-oriented transmitter/receive which provides improved PC board density.Features• 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers• Outputs Source/Sink 24 mA• HD74ACT244 has TTL-Compatible InputsPin ArrangementHD74AC244/HD74ACT2442Truth TablesInputs OE 1D Outputs (Pins 12, 14, 16, 18)L L L L H H H XZInputs OE 2D Outputs (Pins 3, 5, 7, 9)L L L L H H H XZH :High Voltage Level L :Low Voltage Level X :ImmaterialZ:High ImpedanceDC Characteristics (unless otherwise specified)ItemSymbol Max Unit ConditionMaximum quiescent supply current I CC 80µA V IN = V CC or ground, V CC = 5.5 V,Ta = Worst caseMaximum quiescent supply current I CC 8.0µA V IN = V CC or ground, V CC = 5.5 V,Ta = 25°CMaximum additional I CC /input (HD74ACT244)I CCT1.5mAV IN = V CC – 2.1 V, V CC = 5.5 V,Ta = Worst caseHD74AC244/HD74ACT2443AC Characteristics: HD74AC244Ta = +25°C C L = 50 pFTa = –40°C to +85°C C L = 50 pF ItemSymbol V CC (V)*1Min Typ Max Min Max Unit Propagation delay t PLH3.3 1.0 6.59.0 1.010.0nsData to output 5.0 1.0 5.07.0 1.07.5Propagation delay t PHL 3.3 1.0 6.59.0 1.010.0ns Data to output 5.0 1.0 5.07.0 1.07.5Output enable time t PZH 3.3 1.0 6.010.5 1.011.0ns 5.0 1.0 5.07.0 1.08.0Output enable time t PZL 3.3 1.07.510.0 1.011.0ns 5.0 1.0 5.58.0 1.08.5Output disable time t PHZ 3.3 1.07.010.0 1.010.5ns 5.0 1.0 6.59.0 1.09.5Output disable time t PLZ 3.3 1.07.510.5 1.011.5ns 5.01.06.59.01.09.5Note:1.Voltage Range 3.3 is 3.3 V ± 0.3 VVoltage Range 5.0 is 5.0 V ± 0.5 VAC Characteristics: HD74ACT244Ta = +25°C C L = 50 pFTa = –40°C to +85°C C L = 50 pF ItemSymbol V CC (V)*1Min Typ Max Min Max Unit Propagation delay Data to output t PLH 5.0 1.0 6.59.0 1.010.0ns Propagation delay Data to output t PHL 5.0 1.07.09.0 1.010.0ns Output enable time t PZH 5.0 1.0 6.08.5 1.09.5ns Output enable time t PZL 5.0 1.07.09.5 1.010.5ns Output disable time t PHZ 5.0 1.07.09.5 1.010.5ns Output disable time t PLZ5.01.07.510.01.010.5nsNote:1.Voltage Range 5.0 is 5.0 V ± 0.5 VHD74AC244/HD74ACT2444CapacitanceItemSymbol Typ Unit Condition Input capacitanceC IN 4.5pF V CC = 5.5 V Power dissipation capacitanceC PD45.0pFV CC = 5.0 VHitachi Code JEDEC EIAJWeight (reference value)DP-20N —Conforms 1.26 gUnit: mm元器件交易网Hitachi Code JEDEC EIAJWeight (reference value)TTP-20DA ——0.07 gUnit: mm*Dimension including the plating thicknessBase material dimension元器件交易网Cautions1.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 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, installationconditions 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) 3270-5109Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.Hitachi Asia Pte. Ltd.16 Collyer Quay #20-00Hitachi TowerSingapore 049318Tel: 535-2100Fax: 535-1533URLNorthAmerica : http:/Europe : /hel/ecg Asia (Singapore): .sg/grp3/sicd/index.htm Asia (Taiwan): /E/Product/SICD_Frame.htm Asia (HongKong): /eng/bo/grp3/index.htm Japan : http://www.hitachi.co.jp/Sicd/indx.htmHitachi Asia Ltd.Taipei Branch Office3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105)Tel: <886> (2) 2718-3666Fax: <886> (2) 2718-8180Hitachi 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 9218Fax: <852> (2) 730 0281 Telex: 40815 HITEC HXHitachi Europe Ltd.Electronic Components Group.Whitebrook ParkLower Cookham Road MaidenheadBerkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000Fax: <44> (1628) 778322Hitachi Europe GmbHElectronic components Group Dornacher Stra§e 3D-85622 Feldkirchen, Munich GermanyTel: <49> (89) 9 9180-0Fax: <49> (89) 9 29 30 00Hitachi Semiconductor (America) Inc.179 East Tasman Drive,San Jose,CA 95134 Tel: <1> (408) 433-1990Fax: <1>(408) 433-0223For further information write to:。

HD74HC240Octal Buffers/Line Drivers/Line Receivers(with inverted 3-state outputs)REJ03D0594–0200(Previous ADE-205-471)Rev.2.00Jan 31, 2006 DescriptionThe HD74HC240 is an inverting buffer and has two active low enables (1G and 2G). Each enable independently controls 4 buffers. This device does not have schmitt trigger inputs.Features• High Speed Operation: t pd = 10 ns typ (C L = 50 pF)• High Output Current: Fanout of 15 LSTTL Loads• Wide Operating Voltage: V CC = 2 to 6 V• Low Input Current: 1 µA max• Low Quiescent Supply Current: I CC (static) = 4 µA max (Ta = 25°C)• Ordering InformationPart Name Package TypePackage Code(Previous Code)PackageAbbreviationTaping Abbreviation(Quantity)HD74HC240P DILP-20pin PRDP0020AC-B(DP-20NEV)P —HD74HC240FPEL SOP-20 pin (JEITA) PRSP0020DD-B(FP-20DAV)FP EL (2,000 pcs/reel)HD74HC240RPEL SOP-20 pin (JEDEC) PRSP0020DC-A(FP-20DBV)RP EL (1,000 pcs/reel)HD74HC240TELL TSSOP-20pin PTSP0020JB-A(TTP-20DAV)T ELL (2,000 pcs/reel)Note: Please consult the sales office for the above package availability.Function TableInputs OutputG A YH X ZL H LL L HH : high levelL : low levelX : irrelevantZ : off (high-impedance) state of a 3-state outputPin ArrangementLogic DiagramAbsolute Maximum RatingsItem Symbol Ratings UnitSupply voltage range V CC –0.5 to 7.0 V Input / Output voltage V IN , V OUT –0.5 to V CC +0.5 V Input / Output diode current I IK , I OK ±20 mA Output current I O ±35 mA V CC , GND current I CC or I GND ±75 mA Power dissipation P T 500 mW Storage temperature Tstg –65 to +150 °C Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two ofwhich may be realized at the same time.Recommended Operating ConditionsItem Symbol Ratings Unit ConditionsSupply voltage V CC 2 to 6 V Input / Output voltage V IN , V OUT 0 to V CC V Operating temperature Ta –40 to 85 °C 0 to 1000 V CC = 2.0 V0 to 500 V CC = 4.5 V Input rise / fall time *1 t r , t f 0 to 400 ns V CC = 6.0 V Notes: 1. This item guarantees maximum limit when one input switches.Waveform: Refer to test circuit of switching characteristics.Electrical CharacteristicsTa = 25°C Ta = –40 to+85°CItem Symbol V CC (V)Min Typ Max Min MaxUnitTest Conditions2.0 1.5 — — 1.5— 4.5 3.15 — — 3.15 — V IH6.0 4.2 — — 4.2 —V 2.0 — — 0.5 — 0.5 4.5 — — 1.35 — 1.35Input voltageV IL6.0 — — 1.8 — 1.8V 2.0 1.9 2.0 — 1.9 — 4.5 4.4 4.5 — 4.4 — 6.0 5.9 6.0 — 5.9 — I OH = –20 µA 4.5 4.18 — — 4.13 — I OH = –6 mA V OH6.0 5.68 — — 5.63— V Vin = V IH or V IL I OH = –7.8 mA2.0 — 0.0 0.1 —0.1 4.5 — 0.0 0.1 — 0.1 6.0 — 0.0 0.1 — 0.1 I OL = 20 µA 4.5 — — 0.26 — 0.33 I OL = 6 mA Output voltage V OL6.0 — — 0.26 —0.33 V Vin = V IH or V IL I OL = 7.8 mA Off-state output currentI OZ 6.0— — ±0.5 — ±5.0 µA Vin = V IH or V IL ,Vout = V CC or GNDInput current Iin 6.0 — — ±0.1 — ±1.0 µA Vin = V CC or GNDQuiescent supply current I CC 6.0— — 4.0 — 40 µA Vin = V CC or GND, Iout = 0 µASwitching Characteristics(C L = 50 pF, Input t r = t f = 6 ns)Ta = 25°C Ta = –40 to +85°CItem Symbol V CC (V)Min Typ Max Min MaxUnitTest Conditions2.0 — — 90 — 115 4.5 — 10 18 — 23 t PHL6.0 — — 15 — 20 ns 2.0 — — 90 — 115 4.5 — 10 18 — 23 Propagation delaytimet PLH6.0 — — 15 — 20 ns 2.0 — — 150 — 190 4.5 — 11 30 — 38 t ZL6.0 — — 26 — 33 ns 2.0 — — 150 — 190 4.5 — 12 30 — 38 Output enable time t ZH6.0 — — 26 — 33 ns 2.0 — — 150 — 190 4.5 — 16 30 — 38 t LZ6.0 — — 26 — 33 ns 2.0 — — 150 — 190 4.5 — 19 30 — 38 Output disabletimet HZ6.0 — — 26 —33 ns 2.0 — — 60 —75 4.5 — 4 12 — 15 Output rise/fall timet TLH t THL 6.0 — — 10 — 13 ns Input capacitance Cin— — 5 10—10 pFTest CircuitWaveformsPackage Dimensions RENESAS SALES OFFICESRefer to "/en/network" for the latest and detailed information.Renesas Technology America, Inc.450 Holger Way, San Jose, CA 95134-1368, U.S.ATel: <1> (408) 382-7500, Fax: <1> (408) 382-7501Renesas Technology Europe LimitedDukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K.Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900Renesas Technology (Shanghai) Co., Ltd.Unit 205, AZIA Center, No.133 Yincheng Rd (n), Pudong District, Shanghai 200120, ChinaTel: <86> (21) 5877-1818, Fax: <86> (21) 6887-7898Renesas Technology Hong Kong Ltd.7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong KongTel: <852> 2265-6688, Fax: <852> 2730-6071Renesas Technology Taiwan Co., Ltd.10th Floor, No.99, Fushing North Road, Taipei, TaiwanTel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999Renesas Technology Singapore Pte. Ltd.1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632Tel: <65> 6213-0200, Fax: <65> 6278-8001Renesas Technology Korea Co., Ltd.Kukje Center Bldg. 18th Fl., 191, 2-ka, Hangang-ro, Yongsan-ku, Seoul 140-702, KoreaTel: <82> (2) 796-3115, Fax: <82> (2) 796-2145Renesas Technology Malaysia Sdn. BhdUnit 906, Block B, Menara Amcorp, Amcorp Trade Centre, No.18, Jalan Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, MalaysiaTel: <603> 7955-9390, Fax: <603> 7955-9510© 2006. Renesas Technology Corp., All rights reserved. Printed in Japan.。

O CTAL 3-S TATE N ONINVERTINGB UFFER/L INE D RIVER/L INE R ECEIVERHigh-Speed Silicon-Gate CMOS The IN74ACT244 is identical in pinout to the LS/ALS244, HC/HCT244. The IN74ACT244 may be used as a level converterfor interfacing TTL or NMOS outputs to High Speed CMOSinputs.designed to be used with 3-state memory address drivers, clocknoninverting outputs and two active-low output enables.•TTL/NMOS Compatible Input Levels•Outputs Directly Interface to CMOS, NMOS, and TTL•Operating Voltage Range: 4.5 to 5.5 V •Low Input Current: 1.0 µA; 0.1 µA @ 25°C •Outputs Source/Sink 24 mAORDERING INFORMATIONIN74ACT244N PlasticIN74ACT244DW SOICT A = -40° to 85° C for allpackagesFUNCTION TABLEInputs Outputs Enable A,Enable BA,B YA,YBL L LL H HH X ZX=don’t careZ = high impedanceLOGIC DIAGRAMPIN 20=V CCPIN 10 = GNDPIN ASSIGNMENTMAXIMUM RATINGS*Symbol Parameter ValueUnit V CC DC Supply Voltage (Referenced to GND) -0.5 to +7.0 VV IN DC Input Voltage (Referenced to GND) -0.5 to V CC +0.5 VV OUT DC Output Voltage (Referenced to GND) -0.5 to V CC +0.5 VI IN DC Input Current, per Pin ±20 mAI OUT DC Output Sink/Source Current, per Pin ±50 mAI CC DC Supply Current, V CC and GND Pins ±50 mAP D Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ 750500mWTstg Storage Temperature -65 to +150 °CT L Lead Temperature, 1 mm from Case for 10Seconds(Plastic DIP or SOIC Package)260 °C*Maximum Ratings are those values beyond which damage to the device may occur.Functional operation should be restricted to the Recommended Operating Conditions.+Derating - Plastic DIP: - 10 mW/°C from 65° to 125°CSOIC Package: - 7 mW/°C from 65° to 125°CRECOMMENDED OPERATING CONDITIONSSymbol Parameter MinMaxUnit V CC DC Supply Voltage (Referenced to GND) 4.5 5.5 VV IN, V OUT DC Input Voltage, Output Voltage (Referenced toGND)0 V CC VT J Junction Temperature (PDIP) 140 °CT A Operating Temperature, All Package Types -40 +85 °CI OH Output Current - High -24 mAI OL Output Current - Low 24 mAt r, t f Input Rise and Fall Time * (except Schmitt Inputs) V CC=4.5 VV CC =5.5 V108.0ns/V* VINfrom 0.8 V to 2.0 VThis device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, V IN and V OUT should be constrained to the range GND≤(V IN or V OUT)≤V CC.Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V CC). Unused outputs must be left open.DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)V CC Guaranteed LimitsSymbol Parameter Test Conditions V 25 °C -40°C to85°CUnit V IH Minimum High-Level Input VoltageV OUT = V CC -0.1 V 4.5 5.5 2.0 2.0 2.0 2.0 VV IL Maximum Low -Level Input VoltageV OUT =0.1 V 4.5 5.5 0.8 0.8 0.8 0.8 VV OH Minimum High-Level Output VoltageI OUT ≤ -50 µA 4.5 5.5 4.4 5.4 4.4 5.4 V*V IN =V IHI OH =-24 mAI OH =-24 mA4.55.5 3.86 4.86 3.76 4.76 V OL Maximum Low-Level Output VoltageI OUT ≤ 50 µA 4.5 5.5 0.1 0.1 0.1 0.1 V*V IN =V ILI OL =24 mAI OL =24 mA4.55.5 0.36 0.36 0.44 0.44 I IN Maximum Input Leakage CurrentV IN =V CC or GND 5.5 ±0.1 ±1.0 µAI OZ Maximum Three-State Leakage Current V IN (OE)=V IL or V IH V IN =V CC or GND V OUT =V CC or GND5.5 ±0.5 ±5.0 µA∆I CCT Additional MaxI CC /InputV IN =V CC - 2.1 V 5.5 1.5 mA I OLD +Minimum Dynamic Output CurrentV OLD =1.65 V Max 5.5 75 mAI OHD +Minimum Dynamic Output CurrentV OHD =3.85 V Min 5.5 -75 mAI CC Maximum Quiescent Supply Current(per Package)V IN =V CC or GND 5.5 8.0 80 µAAll outputs loaded; thresholds on input associated with output under test. +Maximum test duration 2.0 ms, one output loaded at a time.AC ELECTRICAL CHARACTERISTICS(V CC=5.0 V ± 10%, C L=50pF,Input t r=t f=3.0 ns)LimitsGuaranteedUnitSymbol Parameter 25 °C -40°C to85°CMax MinMaxMin t PLH Propagation Delay, A to YA or B to YB2.0 9.0 1.5 10.0 ns(Figure 1)2.0 9.0 1.5 10.0 nst PHL Propagation Delay, A to YA or B to YB(Figure 1)1.5 8.5 1.0 9.5 nst PZH Propagation Delay, Output Enable to YAor YB (Figure 2)t PZL Propagation Delay, Output Enable to YA2.0 9.5 1.5 10.5 nsor YB (Figure 2)2.0 9.5 1.5 10.5 nst PHZ Propagation Delay, Output Enable to YAor YB (Figure 2)2.5 10.0 2.0 10.5 nst PLZ Propagation Delay, Output Enable to YAor YB (Figure 2)C IN Maximum Input Capacitance 4.5 4.5 pFTypical @25°C,V CC=5.0VC PD Power Dissipation Capacitance 45 pFFigure 1. Switching Waveforms Figure 2. Switching Waveforms。