SN74HC244MDWREP

          
   
SCLS463A − JULY 2002 − REVISED JANUARY 2004 D Controlled Baseline D D D D D D DW OR PW PACKAGE (TOP VIEW) − One Assembly/Test Site, One Fabrication Site Extended Temperature Performance of Up To −55°C to 125°C Enhanced Diminishing Manufacturing Sources (DMS) Support Enhanced Product-Change Notification Qualification Pedigree† 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers High-Current Outputs Drive Up To 15 LSTTL Loads 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 † Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. description/ordering information This octal buffer and line driver is designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The SN74HC244 is organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low, the device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. ORDERING INFORMATION TA −40°C to 125°C −55°C to 125°C ORDERABLE PART NUMBER PACKAGE‡ TOP-SIDE MARKING SOP − DW Tape and reel SN74HC244QDWREP SHC244EP TSSOP − PW Tape and reel SN74HC244QPWREP SHC244EP SOP − DW Tape and reel SN74HC244MDWREP HC244MEP ‡ Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (each buffer/driver) INPUTS OE A OUTPUT Y L H H L L L H X Z Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Copyright  2004, Texas Instruments Incorporated     ! "#$ !  %#&'" ($) (#"! "  !%$""! %$ *$ $!  $+! !#$! !(( ,-) (#" %"$!!. ($!  $"$!!'- "'#($ $!.  '' %$$!) POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 
          
   
SCLS463A − JULY 2002 − REVISED JANUARY 2004 logic diagram (positive logic) 1OE 1A1 1A2 1A3 1A4 1 2OE 2 18 4 16 6 14 8 12 1Y1 2A1 1Y2 2A2 1Y3 2A3 1Y4 2A4 19 11 9 13 7 15 5 17 3 2Y1 2Y2 2Y3 2Y4 absolute maximum ratings over operating free-air temperature range† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±35 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±70 mA Package thermal impedance, θJA (see Note 2): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7. recommended operating conditions VCC VIH Supply voltage VCC = 2 V VCC = 4.5 V High-level input voltage VCC = 6 V VCC = 2 V VIL VI VO tt TA 2 VCC = 4.5 V VCC = 6 V Low-level input voltage Input voltage Operating free-air temperature POST OFFICE BOX 655303 NOM MAX 2 5 6 3.15 V V 4.2 0 0.5 0 1.35 0 1.8 0 0 VCC = 2 V VCC = 4.5 V 0 1000 0 500 VCC = 6 V Q-suffix device 0 400 −40 125 M-suffix device −55 125 • DALLAS, TEXAS 75265 UNIT 1.5 VCC VCC Output voltage Input transition (rise and fall) time MIN V V V ns °C 
          
   
SCLS463A − JULY 2002 − REVISED JANUARY 2004 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = −20 µA VOH VI = VIH or VIL IOH = −6 mA IOH = −7.8 mA IOL = 20 µA VOL VI = VIH or VIL IOL = 6 mA IOL = 7.8 mA II IOZ VI = VCC or 0 VO = VCC or 0, ICC Ci VI = VCC or 0, VI = VIH or VIL IO = 0 VCC MIN TA = 25°C TYP MAX MIN 2V 1.9 1.998 1.9 4.5 V 4.4 4.499 4.4 6V 5.9 5.999 5.9 4.5 V 3.98 4.3 3.7 6V 5.48 5.8 MAX UNIT V 5.2 2V 0.002 0.1 0.1 4.5 V 0.001 0.1 0.1 6V 0.001 0.1 0.1 4.5 V 0.17 0.26 0.4 6V 0.15 0.26 0.4 6V ±0.1 ±100 ±1000 nA 6V ±0.01 ±0.5 ±10 µA 8 160 µA 10 10 pF 6V 2 V to 6 V 3 V switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER tpd ten tdis tt FROM (INPUT) A OE OE TA = 25°C MIN TYP MAX TO (OUTPUT) VCC 2V 40 115 170 Y 4.5 V 13 23 34 6V 11 20 29 Y Y Y POST OFFICE BOX 655303 MIN MAX 2V 75 150 225 4.5 V 15 30 45 6V 13 26 38 2V 75 150 225 4.5 V 15 30 45 6V 13 26 38 2V 28 60 90 4.5 V 8 12 18 6V 6 10 15 • DALLAS, TEXAS 75265 UNIT ns ns ns ns 3 
          
   
SCLS463A − JULY 2002 − REVISED JANUARY 2004 switching characteristics over recommended operating free-air temperature range, CL = 150 pF (unless otherwise noted) (see Figure 1) TA = 25°C TYP MAX PARAMETER FROM (INPUT) TO (OUTPUT) VCC 2V 56 165 245 tpd A Y 4.5 V 18 33 49 6V 15 28 42 ten OE Y tt Y MIN MIN MAX 2V 100 200 300 4.5 V 20 40 60 6V 17 34 51 2V 45 210 315 4.5 V 17 42 63 6V 13 36 53 UNIT ns ns ns operating characteristics, TA = 25°C PARAMETER Cpd 4 TEST CONDITIONS Power dissipation capacitance per buffer/driver POST OFFICE BOX 655303 No load • DALLAS, TEXAS 75265 TYP 35 UNIT pF 
          
   
SCLS463A − JULY 2002 − REVISED JANUARY 2004 PARAMETER MEASUREMENT INFORMATION VCC PARAMETER Test Point From Output Under Test S1 tPZH ten RL CL (see Note A) 1 kΩ tPZL tPHZ tdis S2 RL 1 kΩ CL S1 S2 50 pF or 150 pF Open Closed Closed Open Open Closed Closed Open Open Open 50 pF tPLZ tpd or tt −− LOAD CIRCUIT 50 pF or 150 pF VCC Input 50% 50% 0V tPLH In-Phase Output 50% 10% tPHL 90% VOH 50% 10% V OL tf 90% tr tPHL Out-of-Phase Output 90% tPLH 50% 10% 50% 10% 90% VOH VOL tf tr VOLTAGE WAVEFORMS PROPAGATION DELAY AND OUTPUT TRANSITION TIMES Output Control (Low-Level Enabling) VCC 50% 50% 0V tPZL Output Waveform 1 (See Note B) tPLZ ≈VCC ≈VCC 50% 10% VOL tPZH Input 50% 10% 90% VCC 90% 50% 10% 0 V tr Output Waveform 2 (See Note B) 90% VOH ≈0 V tPHZ tf VOLTAGE WAVEFORM INPUT RISE AND FALL TIMES 50% VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES FOR 3-STATE OUTPUTS NOTES: A. CL includes probe and test-fixture capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns. D. The outputs are measured one at a time with one input transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPLH and tPHL are the same as tpd. Figure 1. Load Circuit and Voltage Waveforms POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) SN74HC244MDWREP ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC244MEP SN74HC244QDWREP ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 SHC244EP SN74HC244QPWREP ACTIVE TSSOP PW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 SHC244EP SN74HC244QPWREPG4 ACTIVE TSSOP PW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 SHC244EP V62/03607-01XE ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC244MEP V62/03607-02XE ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 SHC244EP V62/03607-02YE ACTIVE TSSOP PW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 SHC244EP (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of