MC74AC244, MC74ACT244 Octal Buffer/Line Driver with 3−State Outputs The MC74AC244/74ACT244 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus oriented transmitter/receiver which provides improved PC board density. http://onsemi.com Features • 3−State Outputs Drive Bus Lines or Buffer Memory Address • • • Registers Outputs Source/Sink 24 mA ′ACT244 Has TTL Compatible Inputs Pb−Free Packages are Available* VCC OE2 20 19 18 17 16 15 14 PDIP−20 N SUFFIX CASE 738 1 13 12 SOIC−20W DW SUFFIX CASE 751D 11 1 1 2 3 4 5 6 OE1 7 8 9 TSSOP−20 DT SUFFIX CASE 948E 10 GND 1 Pinout: 20−Lead Packages Conductors (Top View) SOEIAJ−20 M SUFFIX CASE 967 TRUTH TABLE Inputs Outputs OE1 D (Pins 12, 14, 16, 18) L L H L H X L H Z NOTE: 1 ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 5 of this data sheet. H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance DEVICE MARKING INFORMATION TRUTH TABLE Inputs Outputs OE2 D (Pins 3, 5, 7, 9) L L H L H X L H Z NOTE: See general marking information in the device marking section on page 6 of this data sheet. H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. © Semiconductor Components Industries, LLC, 2006 September, 2006 − Rev. 7 1 Publication Order Number: MC74AC244/D MC74AC244, MC74ACT244 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 DC Input Current, per Pin ±20 mA IOUT DC Output Sink/Source Current, per Pin ±50 mA ICC DC VCC or GND Current per Output Pin ±50 mA Tstg Storage Temperature −65 to +150 °C VCC DC Supply Voltage (Referenced to GND) VIN VOUT IIN Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. RECOMMENDED OPERATING CONDITIONS Symbol VCC VIN, VOUT tr, tf Parameter Supply Voltage Min Typ Max ′AC 2.0 5.0 6.0 ′ACT 4.5 5.0 5.5 0 − VCC VCC @ 3.0 V − 150 − VCC @ 4.5 V − 40 − VCC @ 5.5 V − 25 − VCC @ 4.5 V − 10 − VCC @ 5.5 V − 8.0 − − − 140 °C −40 25 85 °C DC Input Voltage, Output Voltage (Ref. to GND) Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs Unit V V ns/V tr, tf Input Rise and Fall Time (Note 2) ′ACT Devices except Schmitt Inputs TJ Junction Temperature (PDIP) TA Operating Ambient Temperature Range IOH Output Current − High − − −24 mA IOL Output Current − Low − − 24 mA 1. VIN from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times. 2. VIN from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times. http://onsemi.com 2 ns/V MC74AC244, MC74ACT244 DC CHARACTERISTICS Symbol VCC (V) Parameter 74AC 74AC TA = +25°C TA = −40°C to +85°C Typ Unit Conditions Guaranteed Limits VIH Minimum High Level Input Voltage 3.0 4.5 5.5 1.5 2.25 2.75 2.1 3.15 3.85 2.1 3.15 3.85 V VOUT = 0.1 V or VCC − 0.1 V VIL Maximum Low Level Input Voltage 3.0 4.5 5.5 1.5 2.25 2.75 0.9 1.35 1.65 0.9 1.35 1.65 V VOUT = 0.1 V or VCC − 0.1 V VOH Minimum High Level Output Voltage 3.0 4.5 5.5 2.99 4.49 5.49 2.9 4.4 5.4 2.9 4.4 5.4 V IOUT = −50 mA 3.0 4.5 5.5 − − − 2.56 3.86 4.86 2.46 3.76 4.76 V *VIN = VIL or VIH −12 mA IOH −24 mA −24 mA 3.0 4.5 5.5 0.002 0.001 0.001 0.1 0.1 0.1 0.1 0.1 0.1 V IOUT = 50 mA 3.0 4.5 5.5 − − − 0.36 0.36 0.36 0.44 0.44 0.44 V *VIN = VIL or VIH 12 mA IOL 24 mA 24 mA VOL Maximum Low Level Output Voltage IIN Maximum Input Leakage Current 5.5 − ±0.1 ±1.0 mA VI = VCC, GND IOZ Maximum 3−State Current 5.5 − ±0.5 ±5.0 mA VI (OE) = VIL, VIH VI = VCC, GND VO = VCC, GND IOLD †Minimum Dynamic Output Current 5.5 − − 75 mA VOLD = 1.65 V Max 5.5 − − −75 mA VOHD = 3.85 V Min 5.5 − 8.0 80 mA VIN = VCC or GND IOHD ICC Maximum Quiescent Supply Current *All outputs loaded; thresholds on input associated with output under test. †Maximum test duration 2.0 ms, one output loaded at a time. NOTE: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC. AC CHARACTERISTICS (For Figures and Waveforms − See AND8277/D at www.onsemi.com) Symbol Parameter VCC* (V) 74AC 74AC TA = +25°C CL = 50 pF TA = −40°C to +85°C CL = 50 pF Min Typ Max Min Max Unit Figure No. tPLH Propagation Delay Data to Output 3.3 5.0 2.0 1.5 6.5 5.0 9.0 7.0 1.5 1.0 10.0 7.5 ns 3−5 tPHL Propagation Delay Data to Output 3.3 5.0 2.0 1.5 6.5 5.0 9.0 7.0 2.0 1.0 10.0 7.5 ns 3−5 tPZH Output Enable Time 3.3 5.0 2.0 1.5 6.0 5.0 10.5 7.0 1.5 1.5 11.0 8.0 ns 3−7 tPZL Output Enable Time 3.3 5.0 2.5 1.5 7.5 5.5 10.0 8.0 2.0 1.5 11.0 8.5 ns 3−8 tPHZ Output Disable Time 3.3 5.0 3.0 2.5 7.0 6.5 10.0 9.0 1.5 1.0 10.5 9.5 ns 3−7 tPLZ Output Disable Time 3.3 5.0 2.5 2.0 7.5 6.5 10.5 9.0 2.5 2.0 11.5 9.5 ns 3−8 *Voltage Range 3.3 V is 3.3 V ±0.3 V. *Voltage Range 5.0 V is 5.0 V ±0.5 V. http://onsemi.com 3 MC74AC244, MC74ACT244 DC CHARACTERISTICS Symbol VCC (V) Parameter 74ACT 74ACT TA = +25°C TA = −40°C to +85°C Typ Unit Conditions Guaranteed Limits VIH Minimum High Level Input Voltage 4.5 5.5 1.5 1.5 2.0 2.0 2.0 2.0 V VOUT = 0.1 V or VCC − 0.1 V VIL Maximum Low Level Input Voltage 4.5 5.5 1.5 1.5 0.8 0.8 0.8 0.8 V VOUT = 0.1 V or VCC − 0.1 V VOH Minimum High Level Output Voltage 4.5 5.5 4.49 5.49 4.4 5.4 4.4 5.4 V IOUT = −50 mA V 4.5 5.5 − − 3.86 4.86 3.76 4.76 *VIN = VIL or VIH −24 mA IOH −24 mA 4.5 5.5 0.001 0.001 0.1 0.1 0.1 0.1 V IOUT = 50 mA V 4.5 5.5 − − 0.36 0.36 0.44 0.44 *VIN = VIL or VIH 24 mA 24 mA IOL Maximum Input Leakage Current 5.5 − ±0.1 ±1.0 mA VI = VCC, GND DICCT Additional Max. ICC/Input 5.5 0.6 − 1.5 mA VI = VCC − 2.1 V IOZ Maximum 3−State Current 5.5 − ±0.5 ±5.0 mA VI (OE) = VIL, VIH VI = VCC, GND VO = VCC, GND IOLD †Minimum Dynamic Output Current 5.5 − − 75 mA VOLD = 1.65 V Max 5.5 − − −75 mA VOHD = 3.85 V Min 5.5 − 8.0 80 mA VIN = VCC or GND VOL IIN Maximum Low Level Output Voltage IOHD ICC Maximum Quiescent Supply Current *All outputs loaded; thresholds on input associated with output under test. †Maximum test duration 2.0 ms, one output loaded at a time. AC CHARACTERISTICS (For Figures and Waveforms − See AND8277/D at www.onsemi.com) Parameter Symbol VCC* (V) 74ACT 74ACT TA = +25°C CL = 50 pF TA = −40°C to +85°C CL = 50 pF Unit Figure No. Min Typ Max Min Max tPLH Propagation Delay Data to Output 5.0 2.0 6.5 9.0 1.5 10.0 ns 3−5 tPHL Propagation Delay Data to Output 5.0 2.0 7.0 9.0 1.5 10.0 ns 3−5 tPZH Output Enable Time 5.0 1.5 6.0 8.5 1.0 9.5 ns 3−7 tPZL Output Enable Time 5.0 2.0 7.0 9.5 1.5 10.5 ns 3−8 tPHZ Output Disable Time 5.0 2.0 7.0 9.5 1.5 10.5 ns 3−7 tPLZ Output Disable Time 5.0 2.5 7.5 10.0 2.0 10.5 ns 3−8 *Voltage Range 5.0 V is 5.0 V ±0.5 V. CAPACITANCE Symbol Parameter Value Typ Unit Test Conditions CIN Input Capacitance 4.5 pF VCC = 5.0 V CPD Power Dissipation Capacitance 45 pF VCC = 5.0 V http://onsemi.com 4 MC74AC244, MC74ACT244 ORDERING INFORMATION Device Package MC74AC244N PDIP−20 MC74AC244NG PDIP−20 (Pb−Free) MC74ACT244N PDIP−20 MC74ACT244NG PDIP−20 (Pb−Free) MC74AC244DW SOIC−20 MC74AC244DWG SOIC−20 (Pb−Free) MC74AC244DWR2 SOIC−20 MC74AC244DWR2G SOIC−20 (Pb−Free) MC74ACT244DW SOIC−20 MC74ACT244DWG SOIC−20 (Pb−Free) MC74ACT244DWR2 SOIC−20 MC74ACT244DWR2G SOIC−20 (Pb−Free) MC74AC244DTR2 TSSOP−20* MC74AC244DTR2G TSSOP−20* MC74ACT244DTR2 TSSOP−20* MC74ACT244DTR2G TSSOP−20* MC74AC244MEL SOEIAJ−20 MC74AC244MELG SOEIAJ−20 (Pb−Free) MC74ACT244M SOEIAJ−20 MC74ACT244MG SOEIAJ−20 (Pb−Free) MC74ACT244MEL SOEIAJ−20 MC74ACT244MELG SOEIAJ−20 (Pb−Free) Shipping† 18 Units / Rail 38 Units / Rail 1000 / Tape & Reel 38 Units / Rail 1000 / Tape & Reel 2500 / Tape & Reel 2000 / Tape & Reel 40 Units / Rail 2000 / Tape & Reel †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. *These packages are inherently Pb−Free. http://onsemi.com 5 MC74AC244, MC74ACT244 MARKING DIAGRAMS PDIP−20 SOIC−20W TSSOP−20 20 20 20 20 AC 244 ALYWG G AC244 AWLYYWWG MC74AC244N AWLYYWWG SOEIAJ−20 1 74AC244 AWLYWWG 1 1 1 20 20 20 20 ACT 244 ALYWG G ACT244 AWLYYWWG MC74ACT244N AWLYYWWG 1 1 1 A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week G or G = Pb−Free Package (Note: Microdot may be in either location) http://onsemi.com 6 74ACT244 AWLYWWG 1 MC74AC244, MC74ACT244 PACKAGE DIMENSIONS PDIP−20 N SUFFIX PLASTIC DIP PACKAGE CASE 738−03 ISSUE E NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. −A− 20 11 1 10 B L C −T− K SEATING PLANE M N E G F J D 20 PL 0.25 (0.010) 20 PL 0.25 (0.010) M T A M T B M DIM A B C D E F G J K L M N INCHES MIN MAX 1.010 1.070 0.240 0.260 0.150 0.180 0.015 0.022 0.050 BSC 0.050 0.070 0.100 BSC 0.008 0.015 0.110 0.140 0.300 BSC 0_ 15 _ 0.020 0.040 MILLIMETERS MIN MAX 25.66 27.17 6.10 6.60 3.81 4.57 0.39 0.55 1.27 BSC 1.27 1.77 2.54 BSC 0.21 0.38 2.80 3.55 7.62 BSC 0_ 15_ 0.51 1.01 M SOIC−20W DW SUFFIX CASE 751D−05 ISSUE G 20 11 X 45 _ h 1 10 20X B B 0.25 M T A S B S A L 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 18X e A1 SEATING PLANE C T http://onsemi.com 7 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_ MC74AC244, MC74ACT244 PACKAGE DIMENSIONS TSSOP−20 DT SUFFIX CASE 948E−02 ISSUE B 20X 0.15 (0.006) T U 2X K REF 0.10 (0.004) S L/2 20 M T U S V S K K1 ÍÍÍÍ ÍÍÍÍ ÍÍÍÍ 11 J J1 B L −U− PIN 1 IDENT SECTION N−N 1 10 0.25 (0.010) N 0.15 (0.006) T U S M 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−. N F DETAIL E −W− C D G H DETAIL E 0.100 (0.004) −T− SEATING PLANE http://onsemi.com 8 DIM A B C D F G H J J1 K K1 L M 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_ MC74AC244, MC74ACT244 PACKAGE DIMENSIONS SOEIAJ−20 M SUFFIX CASE 967−01 ISSUE A 20 LE 11 Q1 E HE 1 M_ L 10 DETAIL P Z D VIEW P e A c DIM A A1 b c D E e HE L LE M Q1 Z A1 b 0.13 (0.005) NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS AND ARE MEASURED AT THE PARTING LINE. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 5. THE LEAD WIDTH DIMENSION (b) DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE LEAD WIDTH DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSIONS AND ADJACENT LEAD TO BE 0.46 ( 0.018). M 0.10 (0.004) MILLIMETERS MIN MAX −−− 2.05 0.05 0.20 0.35 0.50 0.15 0.25 12.35 12.80 5.10 5.45 1.27 BSC 7.40 8.20 0.50 0.85 1.10 1.50 10 _ 0_ 0.70 0.90 −−− 0.81 INCHES MIN MAX −−− 0.081 0.002 0.008 0.014 0.020 0.006 0.010 0.486 0.504 0.201 0.215 0.050 BSC 0.291 0.323 0.020 0.033 0.043 0.059 10 _ 0_ 0.028 0.035 −−− 0.032 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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