MC74HCT244A Octal 3-State Noninverting Buffer/Line Driver/ Line Receiver with LSTTL-Compatible Inputs High−Performance Silicon−Gate CMOS http://onsemi.com The MC74HCT244A is identical in pinout to the LS244. This device may be used as a level converter for interfacing TTL or NMOS outputs to High−Speed CMOS inputs. The HCT244A is an octal noninverting buffer line driver line receiver designed to be used with 3−state memory address drivers, clock drivers, and other bus−oriented systems. The device has non−inverted outputs and two active−low output enables. The HCT244A is the non−inverting version of the HCT240. See also HCT241. SOIC−20W DW SUFFIX CASE 751D PIN ASSIGNMENT ENABLE A • • • Output Drive Capability: 15 LSTTL Loads 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 mA In Compliance with the Requirements Defined by JEDEC Standard No. 7 A Chip Complexity: 112 FETs or 28 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 and are RoHS Compliant A1 A2 A3 A4 DATA INPUTS B1 B2 B3 B4 2 18 4 16 6 14 8 12 11 9 13 7 15 5 17 3 1 OUTPUT ENABLE A ENABLES ENABLE B 19 YA1 A2 YB3 A3 YB2 6 7 8 A4 9 YB1 GND 10 YA3 YA4 YB1 NONINVERTING OUTPUTS 20 VCC 19 18 ENABLE B YA1 17 B4 16 15 14 YA2 B3 YA3 13 B2 12 11 YA4 B1 MARKING DIAGRAMS 20 20 HCT 244A ALYWG G HCT244A AWLYYWWG 1 SOIC−20W YA2 A WL, L YY, Y WW, W G or G TSSOP−20 = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package (Note: Microdot may be in either location) FUNCTION TABLE YB2 Inputs Outputs YB3 Enable A, Enable B A, B YA, YB YB4 L L H L H X L H Z Z = high impedance, X = don’t care ORDERING INFORMATION See detailed ordering and shipping information on page 5 of this data sheet. Figure 1. Logic Diagram September, 2014 − Rev. 14 3 4 5 1 PIN 20 = VCC PIN 10 = GND © Semiconductor Components Industries, LLC, 2014 1 2 A1 YB4 Features • • • • • • TSSOP−20 DT SUFFIX CASE 948E 1 Publication Order Number: MC74HCT244A/D MC74HCT244A MAXIMUM RATINGS Symbol Parameter Value Unit –0.5 to +7 V VCC DC Supply Voltage (Referenced to GND) Vin DC Input Voltage (Referenced to GND) –0.5 to VCC + 0.5 V Vout DC Output Voltage (Referenced to GND) –0.5 to VCC + 0.5 V 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 PD Power Dissipation in Still Air, 500 450 mW Tstg Storage Temperature –65 to +150 _C TL Lead Temperature, 1 mm from Case for 10 Seconds (SOIC or TSSOP Package) SOIC Package† 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 Min Max Unit 4.5 5.5 V 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 2) 0 VCC V –55 +125 _C 0 500 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. DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) Guaranteed Limit Test Conditions VCC V –55 to 25_C ≤ 85_C ≤ 125_C Unit Minimum High−Level Input Voltage Vout = 0.1 V or VCC – 0.1 V |Iout| ≤ 20 mA 4.5 5.5 2 2 2 2 2 2 V VIL Maximum Low−Level Input Voltage Vout = 0.1 V or VCC – 0.1 V |Iout| ≤ 20 mA 4.5 5.5 0.8 0.8 0.8 0.8 0.8 0.8 V VOH Minimum High−Level Output Voltage Vin = VIH or VIL |Iout| ≤ 20 mA 4.5 5.5 4.4 5.4 4.4 5.4 4.4 5.4 V Vin = VIH or VIL |Iout| ≤ 6 mA 4.5 3.98 3.84 3.7 Vin = VIH or VIL |Iout| ≤ 20 mA 4.5 5.5 0.1 0.1 0.1 0.1 0.1 0.1 Vin = VIH or VIL |Iout| ≤ 6 mA 4.5 0.26 0.33 0.4 Symbol Parameter VIH VOL Maximum Low−Level Output Voltage V Iin Maximum Input Leakage Current Vin = VCC or GND 5.5 ±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 5.5 ±0.5 ±5.0 ±10 mA 5.5 ICC Maximum Quiescent Supply Current (per Package) Vin = VCC or GND Iout = 0 mA DICC Additional Quiescent Supply Current Vin = 2.4 V, Any One Input Vin = VCC or GND, Other Inputs lout = 0 mA mA ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ 1. Total Supply Current = ICC + ΣDICC. http://onsemi.com 2 5.5 4 40 160 ≥ −55_C 25_C to 125_C 2.9 2.4 mA MC74HCT244A AC ELECTRICAL CHARACTERISTICS (VCC = 5.0 V ±10%, CL = 50 pF, Input tr = tf = 6 ns) Guaranteed Limit Parameter Symbol –55 to 25_C ≤ 85_C ≤ 125_C Unit tPLH, tPHL Maximum Propagation Delay, A to YA or B to YB (Figures 2 and 4) 20 25 30 ns tPLZ, tPHZ Maximum Propagation Delay, Output Enable to YA or YB (Figures 3 and 5) 26 33 39 ns tPZL, tPZH Maximum Propagation Delay, Output Enable to YA or YB (Figures 3 and 5) 22 28 33 ns tTLH, tTHL Maximum Output Transition Time, Any Output (Figures 2 and 4) 12 15 18 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 55 Power Dissipation Capacitance (Per Enabled Output)* * Used to determine the no−load dynamic power consumption: P D = CPD VCC2 f + ICC VCC . SWITCHING WAVEFORMS tr tf INPUT A OR B 3V 2.7 V 1.3 V 0.3 V GND tPLH tPHL 90% 1.3 V 10% OUTPUT YA OR YB tTHL tTLH Figure 2. 3V ENABLE A OR B 1.3 V GND tPZL OUTPUT Y HIGH IMPEDANCE 1.3 V tPZH OUTPUT Y tPLZ tPHZ 1.3 V 10% VOL 90% VOH HIGH IMPEDANCE Figure 3. http://onsemi.com 3 pF MC74HCT244A TEST CIRCUITS TEST POINT OUTPUT DEVICE UNDER TEST CL* *Includes all probe and jig capacitance Figure 4. TEST POINT OUTPUT DEVICE UNDER TEST CONNECT TO VCC WHEN TESTING tPLZ AND tPZL. CONNECT TO GND WHEN TESTING tPHZ AND tPZH. 1 kW CL* *Includes all probe and jig capacitance Figure 5. LOGIC DETAIL TO THREE OTHER A OR B INVERTERS ONE OF 8 BUFFERS VCC DATA INPUT A OR B YA OR YB ENABLE A OR ENABLE B http://onsemi.com 4 MC74HCT244A ORDERING INFORMATION Package Shipping† MC74HCT244ADWG SOIC−20 (Pb−Free) 38 Units / Rail MC74HCT244ADWR2G SOIC−20 (Pb−Free) 1000 / Tape & Reel MC74HCT244ADTR2G TSSOP−20 (Pb−Free) 2500 / Tape & Reel NLVHCT244ADTR2G* 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 MC74HCT244A 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 K K1 ÍÍÍÍ ÍÍÍÍ ÍÍÍÍ 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 DIM A B C D F G H J J1 K K1 L M SOLDERING FOOTPRINT* 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_ MC74HCT244A PACKAGE DIMENSIONS SOIC−20W 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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