MC74HC244A Octal 3-State Noninverting Buffer/Line Driver/ Line Receiver High−Performance Silicon−Gate CMOS http://onsemi.com The MC74HC244A is identical in pinout to the LS244. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This octal noninverting buffer/line driver/line receiver is designed to be used with 3−state memory address drivers, clock drivers, and other bus−oriented systems. The device has noninverting outputs and two active−low output enables. The HC244A is similar in function to the HC240A. SOIC−20 DW SUFFIX CASE 751D PIN ASSIGNMENT Features • • • • • • • • • ENABLE A Output Drive Capability: 15 LSTTL Loads Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 2.0 to 6.0 V Low Input Current: 1 mA High Noise Immunity Characteristic of CMOS Devices In Compliance with the Requirements Defined by JEDEC Standard No. 7 A Chip Complexity: 136 FETs or 34 Equivalent Gates NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant 2 18 1 2 3 20 19 18 VCC A1 YB4 B4 A2 4 17 5 16 YA2 A3 6 15 B3 YB2 7 14 YA3 A4 8 13 B2 9 10 12 11 YA4 B1 MARKING DIAGRAMS 20 20 HC 244A ALYWG G HC244A AWLYYWWG 1 YA1 1 SOIC−20 A2 A3 A4 DATA INPUTS B1 4 16 6 14 8 12 11 9 13 7 15 5 17 3 A WL, L YY, Y WW, W G or G YA2 YA3 YA4 YB1 TSSOP−20 = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package (*Note: Microdot may be in either location) NONINVERTING OUTPUTS FUNCTION TABLE Inputs B2 B3 B4 OUTPUT ENABLES 1 ENABLE A 19 ENABLE B © Semiconductor Components Industries, LLC, 2014 August, 2014 − Rev. 15 ENABLE B YA1 YB3 YB1 GND LOGIC DIAGRAM A1 TSSOP−20 DT SUFFIX CASE 948E Enable A, Enable B YB2 Outputs A, B L L L H H X Z = high impedance YB3 YB4 YA, YB L H Z ORDERING INFORMATION PIN 20 = VCC PIN 10 = GND See detailed ordering and shipping information in the package dimensions section on page 5 of this data sheet. 1 Publication Order Number: MC74HC244A/D MC74HC244A MAXIMUM RATINGS Symbol Parameter Value Unit –0.5 to +7.0 V DC Input Voltage (Referenced to GND) –0.5 to VCC + 0.5 V DC Output Voltage (Referenced to GND) –0.5 to VCC + 0.5 V VCC DC Supply Voltage (Referenced to GND) Vin Vout Iin DC Input Current, per Pin ±20 mA Iout DC Output Current, per Pin ±35 mA ICC DC Supply Current, VCC and GND Pins ±75 mA IIK Input Clamp Current (VI < 0 or VI > VCC) ±20 mA IOK Output Clamp Current (VO < 0 or VO > VCC) ±20 mA PD Power Dissipation in Still Air, SOIC Package† TSSOP Package† 500 450 mW Tstg Storage Temperature –65 to +150 _C TL Lead Temperature, 1 mm from Case for 10 Seconds (SOIC, SSOP or TSSOP Package) This 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, Vin and Vout should be constrained to the range GND v (Vin or Vout) v VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open. _C 260 Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. †Derating: SOIC Package: –7 mW/_C from 65_ to 125_C TSSOP Package: −6.1 mW/_C from 65_ to 125_C RECOMMENDED OPERATING CONDITIONS Symbol VCC Vin, Vout Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage, Output Voltage (Referenced to GND) TA Operating Temperature, All Package Types tr, tf Input Rise and Fall Time (Figure 1) VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V Min Max Unit 2.0 6.0 V 0 VCC V –55 +125 _C 0 0 0 1000 500 400 ns Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. http://onsemi.com 2 MC74HC244A DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) Guaranteed Limit VCC V –55 to 25_C v 85_C v 125_C Unit Vout = VCC – 0.1 V |Iout| v 20 mA 2.0 3.0 4.5 6.0 1.5 2.1 3.15 4.2 1.5 2.1 3.15 4.2 1.5 2.1 3.15 4.2 V Maximum Low−Level Input Voltage Vout = 0.1 V |Iout| v 20 mA 2.0 3.0 4.5 6.0 0.5 0.9 1.35 1.8 0.5 0.9 1.35 1.8 0.5 0.9 1.35 1.8 V Minimum High−Level Output Voltage Vin = VIH |Iout| v 20 mA 2.0 4.5 6.0 1.9 4.4 5.9 1.9 4.4 5.9 1.9 4.4 5.9 V Vin = VIH |Iout| v 2.4 mA |Iout| v 6.0 mA |Iout| v 7.8 mA 3.0 4.5 6.0 2.48 3.98 5.48 2.34 3.84 5.34 2.2 3.7 5.2 Vin = VIL |Iout| v 20 mA 2.0 4.5 6.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Vin = VIL |Iout| v 2.4 mA |Iout| v 6.0 mA |Iout| v 7.8 mA 3.0 4.5 6.0 0.26 0.26 0.26 0.33 0.33 0.33 0.4 0.4 0.4 Symbol Parameter VIH Minimum High−Level Input Voltage VIL VOH VOL Test Conditions Maximum Low−Level Output Voltage V Iin Maximum Input Leakage Current Vin = VCC or GND 6.0 ±0.1 ±1.0 ±1.0 mA IOZ Maximum Three−State Leakage Current Output in High−Impedance State Vin = VIL or VIH Vout = VCC or GND 6.0 ±0.5 ±5.0 ±10 mA ICC Maximum Quiescent Supply Current (per Package) Vin = VCC or GND Iout = 0 mA 6.0 4.0 40 160 mA AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns) Guaranteed Limit Symbol Parameter VCC V –55 to 25_C v85_C v125_C Unit tPLH, tPHL Maximum Propagation Delay, A to YA or B to YB (Figures 1 and 3) 2.0 3.0 4.5 6.0 96 50 18 15 115 60 23 20 135 70 27 23 ns tPLZ, tPHZ Maximum Propagation Delay, Output Enable to YA or YB (Figures 2 and 4) 2.0 3.0 4.5 6.0 110 60 22 19 140 70 28 24 165 80 33 28 ns tPZL, tPZH Maximum Propagation Delay, Output Enable to YA or YB (Figures 2 and 4) 2.0 3.0 4.5 6.0 110 60 22 19 140 70 28 24 165 80 33 28 ns tTLH, tTHL Maximum Output Transition Time, Any Output (Figures 1 and 3) 2.0 3.0 4.5 6.0 60 23 12 10 75 27 15 13 90 32 18 15 ns Cin Maximum Input Capacitance − 10 10 10 pF Cout Maximum Three−State Output Capacitance (Output in High−Impedance State) − 15 15 15 pF Typical @ 25°C, VCC = 5.0 V CPD 34 Power Dissipation Capacitance (Per Buffer)* * Used to determine the no−load dynamic power consumption: P D = CPD VCC2 f + ICC VCC . http://onsemi.com 3 pF MC74HC244A SWITCHING WAVEFORMS tf tr DATA INPUT A OR B VCC VCC 90% 50% 10% ENABLE A OR B GND tPLH 50% GND tPHL 90% 50% 10% OUTPUT YA OR YB tPLZ tPZL OUTPUT Y tPZH tTLH tTHL HIGH IMPEDANCE 50% OUTPUT Y tPHZ 10% VOL 90% VOH 50% Figure 1. HIGH IMPEDANCE Figure 2. TEST CIRCUITS TEST POINT TEST POINT OUTPUT DEVICE UNDER TEST OUTPUT DEVICE UNDER TEST CL* *Includes all probe and jig capacitance 1 kW CL* CONNECT TO VCC WHEN TESTING tPLZ AND tPZL. CONNECT TO GND WHEN TESTING tPHZ AND tPZH. *Includes all probe and jig capacitance Figure 3. Test Circuit Figure 4. Test Circuit PIN DESCRIPTIONS INPUTS function as noninverting buffers. When a high level is applied, the outputs assume the high impedance state. A1, A2, A3, A4, B1, B2, B3, B4 (Pins 2, 4, 6, 8, 11, 13, 15, 17) OUTPUTS Data input pins. Data on these pins appear in noninverted form on the corresponding Y outputs, when the outputs are enabled. YA1, YA2, YA3, YA4, YB1, YB2, YB3, YB4 (Pins 18, 16, 14, 12, 9, 7, 5, 3) Device outputs. Depending upon the state of the output−enable pins, these outputs are either noninverting outputs or high−impedance outputs. CONTROLS Enable A, Enable B (Pins 1, 19) Output enables (active−low). When a low level is applied to these pins, the outputs are enabled and the devices http://onsemi.com 4 MC74HC244A LOGIC DETAIL TO THREE OTHER A OR B INVERTERS ONE OF 8 INVERTERS VCC DATA INPUT A OR B YA OR YB ENABLE A OR ENABLE B ORDERING INFORMATION Package Shipping† MC74HC244ADWG SOIC−20 WIDE (Pb−Free) 38 Units / Rail MC74HC244ADWR2G SOIC−20 WIDE (Pb−Free) 1000 / Tape & Reel MC74HC244ADTG TSSOP−20 (Pb−Free) 75 Units / Rail MC74HC244ADTR2G TSSOP−20 (Pb−Free) 2500 / Tape & Reel NLV74HC244ADWR2G* SOIC−20 WIDE (Pb−Free) 1000 / Tape & Reel NLV74HC244ADTR2G* TSSOP−20 (Pb−Free) 2500 / Tape & Reel Device †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable http://onsemi.com 5 MC74HC244A PACKAGE DIMENSIONS TSSOP−20 DT SUFFIX CASE 948E−02 ISSUE C 20X 0.15 (0.006) T U 2X K REF 0.10 (0.004) S L/2 20 M T U S V ÍÍÍÍ ÍÍÍÍ ÍÍÍÍ K K1 S J J1 11 B −U− L PIN 1 IDENT SECTION N−N 0.25 (0.010) N 1 10 M 0.15 (0.006) T U S N A −V− NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 (0.010) PER SIDE. 5. DIMENSION K DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE K DIMENSION AT MAXIMUM MATERIAL CONDITION. 6. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 7. DIMENSION A AND B ARE TO BE DETERMINED AT DATUM PLANE −W−. F DETAIL E −W− C G D H DETAIL E 0.100 (0.004) −T− SEATING PLANE SOLDERING FOOTPRINT DIM A B C D F G H J J1 K K1 L M 7.06 1 0.65 PITCH 16X 0.36 16X 1.26 DIMENSIONS: MILLIMETERS *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. http://onsemi.com 6 MILLIMETERS MIN MAX 6.40 6.60 4.30 4.50 1.20 --0.05 0.15 0.50 0.75 0.65 BSC 0.27 0.37 0.09 0.20 0.09 0.16 0.19 0.30 0.19 0.25 6.40 BSC 0_ 8_ INCHES MIN MAX 0.252 0.260 0.169 0.177 0.047 --0.002 0.006 0.020 0.030 0.026 BSC 0.011 0.015 0.004 0.008 0.004 0.006 0.007 0.012 0.007 0.010 0.252 BSC 0_ 8_ MC74HC244A PACKAGE DIMENSIONS SOIC−20 DW SUFFIX CASE 751D−05 ISSUE G 20 11 X 45 _ h H M E 0.25 10X NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE PROTRUSION SHALL BE 0.13 TOTAL IN EXCESS OF B DIMENSION AT MAXIMUM MATERIAL CONDITION. q A B M D 1 10 20X B B 0.25 M T A S B S L A 18X e A1 DIM A A1 B C D E e H h L q MILLIMETERS MIN MAX 2.35 2.65 0.10 0.25 0.35 0.49 0.23 0.32 12.65 12.95 7.40 7.60 1.27 BSC 10.05 10.55 0.25 0.75 0.50 0.90 0_ 7_ SEATING PLANE C T ON Semiconductor and the are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries. SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. 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