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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.
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* 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 20 OE2 19 18 17 16 15 14 13 12 11 1
PDIP-20 N SUFFIX CASE 738 1
SOIC-20W DW SUFFIX CASE 751D
1 OE1
2
3
4
5
6
7
8
9
10 GND 1
TSSOP-20 DT SUFFIX CASE 948E
Pinout: 20-Lead Packages Conductors (Top View) TRUTH TABLE
Inputs OE1 L L H NOTE: D L H X Outputs (Pins 12, 14, 16, 18) L H Z 1 SOEIAJ-20 M SUFFIX CASE 967
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 OE2 L L H NOTE: D L H X Outputs (Pins 3, 5, 7, 9) L H Z
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.
(c) Semiconductor Components Industries, LLC, 2006
1
September, 2006 - Rev. 7
Publication Order Number: MC74AC244/D
MC74AC244, MC74ACT244
MAXIMUM RATINGS
Symbol VCC VIN VOUT IIN IOUT ICC Tstg Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC VCC or GND Current per Output Pin Storage Temperature Value -0.5 to +7.0 -0.5 to VCC +0.5 -0.5 to VCC +0.5 20 50 50 -65 to +150 Unit V V V mA mA mA C
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 Supply Voltage DC Input Voltage, Output Voltage (Ref. to GND) VCC @ 3.0 V tr, tf Input Rise and Fall Time (Note 1) AC Devices except Schmitt Inputs Input Rise and Fall Time (Note 2) ACT Devices except Schmitt Inputs Junction Temperature (PDIP) Operating Ambient Temperature Range Output Current - High Output Current - Low VCC @ 4.5 V VCC @ 5.5 V tr, tf TJ TA IOH IOL VCC @ 4.5 V VCC @ 5.5 V Parameter AC ACT Min 2.0 4.5 0 - - - - - - -40 - - Typ 5.0 5.0 - 150 40 25 10 8.0 - 25 - - Max 6.0 5.5 VCC - - - - - 140 85 -24 24 ns/V C C mA mA ns/V V V Unit
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.
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MC74AC244, MC74ACT244
DC CHARACTERISTICS
74AC Symbol Parameter VCC (V) TA = +25C Typ VIH Minimum High Level Input Voltage 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 VOL Maximum Low Level Output Voltage 3.0 4.5 5.5 3.0 4.5 5.5 IIN IOZ Maximum Input Leakage Current Maximum 3-State Current 5.5 5.5 1.5 2.25 2.75 1.5 2.25 2.75 2.99 4.49 5.49 - - - 0.002 0.001 0.001 - - - - - 74AC TA = -40C to +85C Unit Conditions
Guaranteed Limits 2.1 3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 2.56 3.86 4.86 0.1 0.1 0.1 0.36 0.36 0.36 0.1 0.5 2.1 3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 2.46 3.76 4.76 0.1 0.1 0.1 0.44 0.44 0.44 1.0 5.0 V VOUT = 0.1 V or VCC - 0.1 V VOUT = 0.1 V or VCC - 0.1 V IOUT = -50 mA
VIL
Maximum Low Level Input Voltage
V
VOH
Minimum High Level Output Voltage
V
V
*VIN = VIL or VIH -12 mA IOH -24 mA -24 mA IOUT = 50 mA
V
V
*VIN = VIL or VIH 12 mA IOL 24 mA 24 mA VI = VCC, GND VI (OE) = VIL, VIH VI = VCC, GND VO = VCC, GND VOLD = 1.65 V Max VOHD = 3.85 V Min VIN = VCC or GND
mA mA
IOLD IOHD ICC
Minimum Dynamic Output Current
5.5 5.5
- - -
- - 8.0
75 -75 80
mA mA mA
Maximum Quiescent Supply Current
5.5
*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)
74AC Symbol Parameter VCC* (V) Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Data to Output Propagation Delay Data to Output Output Enable Time Output Enable Time Output Disable Time Output Disable Time 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 2.0 1.5 2.0 1.5 2.0 1.5 2.5 1.5 3.0 2.5 2.5 2.0 TA = +25C CL = 50 pF Typ 6.5 5.0 6.5 5.0 6.0 5.0 7.5 5.5 7.0 6.5 7.5 6.5 Max 9.0 7.0 9.0 7.0 10.5 7.0 10.0 8.0 10.0 9.0 10.5 9.0 74AC TA = -40C to +85C CL = 50 pF Min 1.5 1.0 2.0 1.0 1.5 1.5 2.0 1.5 1.5 1.0 2.5 2.0 Max 10.0 7.5 10.0 7.5 11.0 8.0 11.0 8.5 10.5 9.5 11.5 9.5 ns ns ns ns ns ns 3-5 3-5 3-7 3-8 3-7 3-8 Unit Figure No.
*Voltage Range 3.3 V is 3.3 V 0.3 V. *Voltage Range 5.0 V is 5.0 V 0.5 V.
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MC74AC244, MC74ACT244
DC CHARACTERISTICS
74ACT Symbol Parameter VCC (V) TA = +25C Typ VIH VIL VOH Minimum High Level Input Voltage Maximum Low Level Input Voltage Minimum High Level Output Voltage 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 VOL Maximum Low Level Output Voltage 4.5 5.5 4.5 5.5 IIN DICCT IOZ Maximum Input Leakage Current Additional Max. ICC/Input Maximum 3-State Current 5.5 5.5 5.5 1.5 1.5 1.5 1.5 4.49 5.49 - - 0.001 0.001 - - - 0.6 - 74ACT TA = -40C to +85C Unit Conditions
Guaranteed Limits 2.0 2.0 0.8 0.8 4.4 5.4 3.86 4.86 0.1 0.1 0.36 0.36 0.1 - 0.5 2.0 2.0 0.8 0.8 4.4 5.4 3.76 4.76 0.1 0.1 0.44 0.44 1.0 1.5 5.0 mA mA mA V V V V V V VOUT = 0.1 V or VCC - 0.1 V VOUT = 0.1 V or VCC - 0.1 V IOUT = -50 mA *VIN = VIL or VIH -24 mA IOH -24 mA IOUT = 50 mA *VIN = VIL or VIH 24 mA 24 mA IOL VI = VCC, GND VI = VCC - 2.1 V VI (OE) = VIL, VIH VI = VCC, GND VO = VCC, GND VOLD = 1.65 V Max VOHD = 3.85 V Min VIN = VCC or GND
IOLD IOHD ICC
Minimum Dynamic Output Current
5.5 5.5
- - -
- - 8.0
75 -75 80
mA mA mA
Maximum Quiescent Supply Current
5.5
*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)
74ACT Symbol Parameter VCC* (V) Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Data to Output Propagation Delay Data to Output Output Enable Time Output Enable Time Output Disable Time Output Disable Time 5.0 5.0 5.0 5.0 5.0 5.0 2.0 2.0 1.5 2.0 2.0 2.5 TA = +25C CL = 50 pF Typ 6.5 7.0 6.0 7.0 7.0 7.5 Max 9.0 9.0 8.5 9.5 9.5 10.0 74ACT TA = -40C to +85C CL = 50 pF Min 1.5 1.5 1.0 1.5 1.5 2.0 Max 10.0 10.0 9.5 10.5 10.5 10.5 ns ns ns ns ns ns 3-5 3-5 3-7 3-8 3-7 3-8 Unit Figure No.
*Voltage Range 5.0 V is 5.0 V 0.5 V.
CAPACITANCE
Symbol CIN CPD Input Capacitance Power Dissipation Capacitance Parameter Value Typ 4.5 45 Unit pF pF Test Conditions VCC = 5.0 V VCC = 5.0 V
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MC74AC244, MC74ACT244
ORDERING INFORMATION
Device MC74AC244N MC74AC244NG MC74ACT244N MC74ACT244NG MC74AC244DW MC74AC244DWG MC74AC244DWR2 MC74AC244DWR2G MC74ACT244DW MC74ACT244DWG MC74ACT244DWR2 MC74ACT244DWR2G MC74AC244DTR2 MC74AC244DTR2G MC74ACT244DTR2 MC74ACT244DTR2G MC74AC244MEL MC74AC244MELG MC74ACT244M MC74ACT244MG MC74ACT244MEL MC74ACT244MELG Package PDIP-20 PDIP-20 (Pb-Free) PDIP-20 PDIP-20 (Pb-Free) SOIC-20 SOIC-20 (Pb-Free) SOIC-20 SOIC-20 (Pb-Free) SOIC-20 SOIC-20 (Pb-Free) SOIC-20 SOIC-20 (Pb-Free) TSSOP-20* TSSOP-20* TSSOP-20* TSSOP-20* SOEIAJ-20 SOEIAJ-20 (Pb-Free) SOEIAJ-20 SOEIAJ-20 (Pb-Free) SOEIAJ-20 SOEIAJ-20 (Pb-Free) 2000 / Tape & Reel 40 Units / Rail 2000 / Tape & Reel 2500 / Tape & Reel 1000 / Tape & Reel 38 Units / Rail 1000 / Tape & Reel 38 Units / Rail 18 Units / Rail Shipping
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.
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MC74AC244, MC74ACT244
MARKING DIAGRAMS
PDIP-20
SOIC-20W
TSSOP-20
SOEIAJ-20
20 20 MC74AC244N AWLYYWWG 1 1 AC244 AWLYYWWG
20 AC 244 ALYWG G 1
20 74AC244 AWLYWWG 1
20 20 MC74ACT244N AWLYYWWG 1 1 ACT244 AWLYYWWG
20 ACT 244 ALYWG G 1
20 74ACT244 AWLYWWG 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)
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MC74AC244, MC74ACT244
PACKAGE DIMENSIONS
PDIP-20 N SUFFIX PLASTIC DIP PACKAGE CASE 738-03 ISSUE E
-A-
20 1 11 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.
B
10
C
L
-T-
SEATING PLANE
K M E G F D
20 PL
N J 0.25 (0.010)
M 20 PL
0.25 (0.010) TA
M
M
TB
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
SOIC-20W DW SUFFIX CASE 751D-05 ISSUE G
D
A
11 X 45 _
q
H
M
B
M
20
10X
0.25
E
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. 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_
1
10
20X
B 0.25
M
B TA
S
B
S
A
SEATING PLANE
h
18X
e
A1
T
C
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L
MC74AC244, MC74ACT244
PACKAGE DIMENSIONS
TSSOP-20 DT SUFFIX CASE 948E-02 ISSUE B
K REF
M 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-. 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_
20X
0.15 (0.006) T U
S
0.10 (0.004)
TU
S
V
S
B L
PIN 1 IDENT 1 10
J J1
-U-
N 0.15 (0.006) T U
S
A -V- N F
C D 0.100 (0.004) -T- SEATING
PLANE
G
H
DETAIL E
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IIII IIII IIII
SECTION N-N M DETAIL E
2X
L/2
20
11
K K1
0.25 (0.010)
-W-
DIM A B C D F G H J J1 K K1 L M
MC74AC244, MC74ACT244
PACKAGE DIMENSIONS
SOEIAJ-20 M SUFFIX CASE 967-01 ISSUE A
20
11
LE Q1 M_ L DETAIL P
E HE
1
10
Z D e VIEW P A
c
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). DIM A A1 b c D E e HE L LE M Q1 Z 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
b 0.13 (0.005)
M
A1 0.10 (0.004)
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
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MC74AC244/D

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