MC74AC373/74ACT373 consists eight latches with 3-state outputs organiz
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MC74AC373, MC74ACT373 Octal Transparent Latch with 3-State Outputs
MC74AC373/74ACT373 consists eight latches with 3-state outputs organized system applications. flip-flops appear transparent data when Latch Enable (LE) HIGH. When LOW, data that meets setup time latched. Data appears when Output Enable (OE) LOW. When HIGH, output high impedance state.
Eight Latches Single Package 3-State Outputs Interfacing Outputs Source/Sink ACT373 Compatible Inputs Pb-Free Packages Available
PDIP-20 SUFFIX CASE
SOIC-20W SUFFIX CASE 751D
TSSOP-20 SUFFIX CASE 948E SOEIAJ-20 SUFFIX CASE
Figure Pinout: 20-Lead Packages Conductors
(Top View)
ASSIGNMENT
D0-D7 O0-O7 FUNCTION Data Inputs Latch Enable Input Output Enable Input 3-State Latch Outputs
ORDERING INFORMATION
detailed ordering shipping information package dimensions section page this data sheet.
DEVICE MARKING INFORMATION
general marking information device marking section page this data sheet.
Figure Logic Symbol
Semiconductor Components Industries, LLC, 2006
November, 2006 Rev.
Publication Order Number: MC74AC373/D
MC74AC373, MC74ACT373
TRUTH TABLE
Inputs Outputs
HIGH Voltage Level Voltage Level High Impedance Immaterial Previous before LOW-to-HIGH Transition Clock
FUNCTIONAL DESCRIPTION MC74AC373/74ACT373 contains eight D-type latches with 3-state standard outputs. When Latch Enable (LE) input HIGH, data inputs enters latches. this condition latches transparent, i.e., latch output will change state each time input changes. When LOW, latches store information that present inputs setup time preceding HIGH-to-LOW transition 3-state standard outputs controlled Output Enable (OE) input. When LOW, standard outputs 2-state mode. When HIGH, standard outputs high impedance mode this does interfere with entering data into latches.
NOTE:
This diagram provided only understanding logic operations should used estimate propagation delays.
Figure Logic Diagram
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MC74AC373, MC74ACT373
MAXIMUM RATINGS
Symbol VOUT IOUT Tstg Parameter Supply Voltage (Referenced GND) Input Voltage (Referenced GND) Output Voltage (Referenced GND) Input Current, Output Sink/Source Current, Current Output Storage Temperature Value -0.5 +7.0 -0.5 +0.5 -0.5 +0.5 +150 Unit
Stresses exceeding Maximum Ratings damage device. Maximum Ratings stress ratings only. Functional operation above Recommended Operating Conditions implied. Extended exposure stresses above Recommended Operating Conditions affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Symbol VIN, VOUT Supply Voltage Input Voltage, Output Voltage (Ref. GND) Input Rise Fall Time (Note Devices except Schmitt Inputs Input Rise Fall Time (Note Devices except Schmitt Inputs Junction Temperature (PDIP) Operating Ambient Temperature Range Output Current High Output Current Parameter ns/V ns/V Unit
from VCC; individual Data Sheets devices that differ from typical input rise fall times. from individual Data Sheets devices that differ from typical input rise fall times.
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MC74AC373, MC74ACT373
CHARACTERISTICS
74AC Symbol Parameter +25°C Minimum High Level Input Voltage Maximum Level Input Voltage Minimum High Level Output Voltage Maximum Level Output Voltage Maximum Input Leakage Current Maximum 3-State Current Minimum Dynamic Output Current 2.25 2.75 2.25 2.75 2.99 4.49 5.49 0.002 0.001 0.001 74AC -40°C +85°C Unit Conditions
Guaranteed Limits 3.15 3.85 1.35 1.65 2.56 3.86 4.86 0.36 0.36 0.36 ±0.1 3.15 3.85 1.35 1.65 2.46 3.76 4.76 0.44 0.44 0.44 ±1.0 VOUT VOUT IOUT *VIN IOUT *VIN VCC, (OE) VIL, VCC, VCC, VOLD 1.65 VOHD 3.85
±0.5
±5.0
IOLD IOHD
Maximum Quiescent Supply Current
*All outputs loaded; thresholds input associated with output under test. Maximum test duration output loaded time. NOTE: guaranteed less than equal respective limit VCC.
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MC74AC373, MC74ACT373
CHARACTERISTICS (For Figures Waveforms AND8277/D www.onsemi.com)
74AC Symbol Parameter VCC* tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Propagation Delay Propagation Delay Propagation Delay Output Enable Time Output Enable Time Output Disable Time Output Disable Time +25°C 13.5 13.5 12.5 11.5 11.5 12.5 11.5 74AC -40°C +85°C 10.5 14.5 10.5 10.5 10.5 14.5 12.5 12.5 Unit Fig.
*Voltage Range ±0.3 Voltage Range ±0.5
OPERATING REQUIREMENTS
74AC Symbol Parameter VCC* +25°C Setup Time, HIGH Hold Time, HIGH Pulse Width, HIGH -3.0 -1.5 74AC -40°C +85°C Unit Fig.
Guaranteed Minimum
*Voltage Range ±0.3 Voltage Range ±0.5
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MC74AC373, MC74ACT373
CHARACTERISTICS
74ACT Symbol Parameter +25°C Minimum High Level Input Voltage Maximum Level Input Voltage Minimum High Level Output Voltage Maximum Level Output Voltage DICCT Maximum Input Leakage Current Additional Max. ICC/Input Maximum 3-State Current Minimum Dynamic Output Current Maximum Quiescent Supply Current 4.49 5.49 0.001 0.001 74ACT -40°C +85°C Unit Conditions
Guaranteed Limits 3.86 4.86 0.36 0.36 ±0.1 ±0.5 3.76 4.76 0.44 0.44 ±1.0 ±5.0 VOUT VOUT IOUT *VIN IOUT *VIN VCC, (OE) VIL, VCC, VCC, VOLD 1.65 VOHD 3.85
IOLD IOHD
*All outputs loaded; thresholds input associated with output under test. Maximum test duration output loaded time.
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MC74AC373, MC74ACT373
CHARACTERISTICS (For Figures Waveforms AND8277/D www.onsemi.com)
74ACT Symbol Parameter VCC* tPLH tPHL tPLH tPHL tPZH tPZL tPHZ Propagation Delay Propagation Delay Propagation Delay Propagation Delay Output Enable Time Output Enable Time Output Disable Time +25°C 74ACT -40°C +85°C 11.5 11.5 11.5 11.5 10.5 10.5 12.5 Unit Fig.
tPLZ Output Disable Time *Voltage Range ±0.5
OPERATING REQUIREMENTS (For Figures Waveforms AND8277/D www.onsemi.com)
74ACT Symbol Parameter VCC* Setup Time, HIGH Hold Time, HIGH +25°C 74ACT -40°C +85°C Unit Fig.
Guaranteed Minimum
Pulse Width, HIGH *Voltage Range ±0.5
CAPACITANCE
Symbol Input Capacitance Power Dissipation Capacitance Parameter Value Unit Test Conditions
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MC74AC373, MC74ACT373
ORDERING INFORMATION
Device MC74AC373N MC74AC373NG MC74ACT373N MC74ACT373NG MC74AC373DW MC74AC373DWG MC74AC373DWR2 MC74AC373DWR2G MC74ACT373DW MC74ACT373DWG MC74ACT373DWR2 MC74ACT373DWR2G MC74AC373DT MC74AC373DTG MC74AC373DTR2 MC74AC373DTR2G MC74ACT373DT MC74ACT373DTG MC74ACT373DTR2 MC74ACT373DTR2G MC74AC373MEL MC74AC373MELG MC74ACT373MEL MC74ACT373MELG 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* TSSOP-20* TSSOP-20* TSSOP-20* TSSOP-20* SOEIAJ-20 SOEIAJ-20 (Pb-Free) SOEIAJ-20 SOEIAJ-20 (Pb-Free) 2000 Tape Reel 2000 Tape Reel 2500 Tape Reel Units Rail 2500 Tape Reel Units Rail 1000 Tape Reel Units Rail 1000 Tape Reel Units Rail Units Rail Shipping
information tape reel specifications, including part orientation tape sizes, please refer Tape Reel Packaging Specifications Brochure, BRD8011/D. *These packages inherently Pb-Free.
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MC74AC373, MC74ACT373
MARKING DIAGRAMS
PDIP-20
SOIC-20W
TSSOP-20
SOEIAJ-20
MC74AC373N AWLYYWWG AC373 AWLYYWWG
ALYWG
74AC373 AWLYWWG
MC74ACT373N AWLYYWWG ACT373 AWLYYWWG
ALYWG
74ACT373 AWLYWWG
Assembly Location Wafer Year Work Week Pb-Free Package (Note: Microdot either location)
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MC74AC373, MC74ACT373
PACKAGE DIMENSIONS
PDIP-20 SUFFIX PLASTIC PACKAGE CASE 738-03 ISSUE
NOTES: DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: INCH. DIMENSION CENTER LEAD WHEN FORMED PARALLEL. DIMENSION DOES INCLUDE MOLD FLASH.
SEATING PLANE
0.25 (0.010)
0.25 (0.010)
INCHES 1.010 1.070 0.240 0.260 0.150 0.180 0.015 0.022 0.050 0.050 0.070 0.100 0.008 0.015 0.110 0.140 0.300 0.020 0.040
MILLIMETERS 25.66 27.17 6.10 6.60 3.81 4.57 0.39 0.55 1.27 1.27 1.77 2.54 0.21 0.38 2.80 3.55 7.62 0.51 1.01
SOIC-20W SUFFIX CASE 751D-05 ISSUE
0.25
NOTES: DIMENSIONS MILLIMETERS. INTERPRET DIMENSIONS TOLERANCES ASME Y14.5M, 1994. DIMENSIONS INCLUDE MOLD PROTRUSION. MAXIMUM MOLD PROTRUSION 0.15 SIDE. DIMENSION DOES INCLUDE DAMBAR PROTRUSION. ALLOWABLE PROTRUSION SHALL 0.13 TOTAL EXCESS DIMENSION MAXIMUM MATERIAL CONDITION. MILLIMETERS 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 10.05 10.55 0.25 0.75 0.50 0.90
0.25
SEATING PLANE
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MC74AC373, MC74ACT373
PACKAGE DIMENSIONS
TSSOP-20 SUFFIX CASE 948E-02 ISSUE
NOTES: DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: MILLIMETER. DIMENSION DOES INCLUDE MOLD FLASH, PROTRUSIONS GATE BURRS. MOLD FLASH GATE BURRS SHALL EXCEED 0.15 (0.006) SIDE. DIMENSION DOES INCLUDE INTERLEAD FLASH PROTRUSION. INTERLEAD FLASH PROTRUSION SHALL EXCEED 0.25 (0.010) SIDE. DIMENSION DOES INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL 0.08 (0.003) TOTAL EXCESS DIMENSION MAXIMUM MATERIAL CONDITION. TERMINAL NUMBERS SHOWN REFERENCE ONLY. DIMENSION DETERMINED DATUM PLANE -W-. MILLIMETERS INCHES 6.40 6.60 0.252 0.260 4.30 4.50 0.169 0.177 0.047 1.20 0.05 0.15 0.002 0.006 0.50 0.75 0.020 0.030 0.65 0.026 0.27 0.37 0.011 0.015 0.09 0.20 0.004 0.008 0.09 0.16 0.004 0.006 0.19 0.30 0.007 0.012 0.19 0.25 0.007 0.010 6.40 0.252
IDENT
0.15 (0.006)
DETAIL
0.100 (0.004) SEATING
PLANE
DETAIL
SOLDERING FOOTPRINT*
7.06
0.36
1.26
*For additional information Pb-Free strategy soldering details, please download Semiconductor Soldering Mounting Techniques Reference Manual, SOLDERRM/D.
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SECTION 0.25 (0.010)
0.15 (0.006)
0.10 (0.004)
0.65 PITCH
DIMENSIONS: MILLIMETERS
MC74AC373, MC74ACT373
PACKAGE DIMENSIONS
SOEIAJ-20 SUFFIX CASE 967-01 ISSUE
DETAIL
VIEW
NOTES: DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: MILLIMETER. DIMENSIONS INCLUDE MOLD FLASH PROTRUSIONS MEASURED PARTING LINE. MOLD FLASH PROTRUSIONS SHALL EXCEED 0.15 (0.006) SIDE. TERMINAL NUMBERS SHOWN REFERENCE ONLY. LEAD WIDTH DIMENSION DOES INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL 0.08 (0.003) TOTAL EXCESS LEAD WIDTH DIMENSION MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT LOCATED LOWER RADIUS FOOT. MINIMUM SPACE BETWEEN PROTRUSIONS ADJACENT LEAD 0.46 0.018). MILLIMETERS 2.05 0.05 0.20 0.35 0.50 0.15 0.25 12.35 12.80 5.10 5.45 1.27 7.40 8.20 0.50 0.85 1.10 1.50 0.70 0.90 0.81 INCHES 0.081 0.002 0.008 0.014 0.020 0.006 0.010 0.486 0.504 0.201 0.215 0.050 0.291 0.323 0.020 0.033 0.043 0.059 0.028 0.035 0.032
0.13 (0.005)
0.10 (0.004)
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MC74AC373/D
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