MC74AC378/74ACT378 6-bit register with buffered common Enable. This de
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MC74AC378 MC74ACT378 Parallel Register with Enable
MC74AC378/74ACT378 6-bit register with buffered common Enable. This device similar MC74AC174/74ACT174, with common Enable rather than common Master Reset. 6-Bit High-Speed Parallel Register Positive Edge-Triggered D-Type Inputs Fully Buffered Common Clock Enable Inputs Outputs Source/Sink ACT378 Compatible Inputs PARALLEL REGISTER WITH ENABLE
SUFFIX CASE 648-08 PLASTIC
NAMES D0-D5 Q0-Q5 Enable Input Data Inputs Clock Pulse Input Outputs SUFFIX CASE 751B-05 PLASTIC
TRUTH TABLE
Inputs Outputs Change
LOGIC SYMBOL
HIGH Voltage Level Voltage Level Immaterial LOW-to-HIGH Transition
FACT DATA
MC74AC378 MC74ACT378
FUNCTIONAL DESCRIPTION
MC74AC378/74ACT378 consists edgetriggered D-type flip-flops with individual inputs outputs. Clock (CP) Enable inputs common flip-flops. When input LOW, data entered into register LOW-to-HIGH transition input. When input HIGH, register will retain present data independent input.
LOGIC DIAGRAM
Please note that this diagram provided only understanding logic operations should used estimate propagation delays.
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
Maximum Ratings those values beyond which damage device occur. Functional operation should restricted Recommended Operating Conditions.
FACT DATA
MC74AC378 MC74ACT378
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.
CHARACTERISTICS
74AC Symbol Parameter +25°C Minimum High Level Input Voltage Maximum Level Output Voltage IOLD IOHD Maximum Input Leakage Current Minimum Dynamic Output Current Maximum Quiescent Supply Current 0.002 0.001 0.001 2.25 2.75 2.25 2.75 2.99 4.49 5.49 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, VOLD 1.65 VOHD 3.85
Maximum Level Input Voltage
Minimum High Level Output Voltage
outputs loaded; thresholds input associated with output under test. Maximum test duration output loaded time. Note: guaranteed less than equal respective limit VCC.
FACT DATA
MC74AC378 MC74ACT378
CHARACTERISTICS (For Figures Waveforms Section
74AC Symbol Parameter VCC* fmax tPLH tPHL Maximum Clock Frequency Propagation Delay Propagation Delay 10.5 +25°C 74AC -40°C +85°C 12.5 Unit Fig.
Voltage Range ±0.3 Voltage Range ±0.5
OPERATING REQUIREMENTS
74AC Symbol Parameter VCC* Setup Time, HIGH Hold Time, HIGH Setup Time, HIGH Hold Time, HIGH Pulse Width HIGH +25°C 74AC -40°C +85°C Unit Fig.
Guaranteed Minimum
Voltage Range ±0.3 Voltage Range ±0.5
FACT DATA
MC74AC378 MC74ACT378
CHARACTERISTICS
74ACT Symbol Parameter +25°C Minimum High Level Input Voltage Maximum Level Input Voltage Minimum High Level Output Voltage Maximum Level Output Voltage ICCT IOLD IOHD Maximum Input Leakage Current Additional Max. ICC/Input Minimum Dynamic Output Current Maximum Quiescent Supply Current 0.001 0.001 4.49 5.49 74ACT -40°C +85°C Unit Conditions
Guaranteed Limits 3.86 4.86 0.36 0.36 ±0.1 3.76 4.76 0.44 0.44 ±1.0 VOUT VOUT IOUT *VIN IOUT *VIN VCC, VOLD 1.65 VOHD 3.85
outputs loaded; thresholds input associated with output under test. Maximum test duration output loaded time.
CHARACTERISTICS (For Figures Waveforms Section
74ACT Symbol Parameter VCC* fmax tPLH tPHL Maximum Clock Frequency Propagation Delay Propagation Delay +25°C 74ACT -40°C +85°C Unit Fig.
Voltage Range ±0.5
FACT DATA
MC74AC378 MC74ACT378
OPERATING REQUIREMENTS
74ACT Symbol Parameter VCC* Setup Time, HIGH Hold Time, HIGH Setup Time, HIGH Hold Time, HIGH Pulse Width HIGH -0.5 -0.5 +25°C 74ACT -40°C +85°C Unit Fig.
Guaranteed Minimum
Voltage Range ±0.5
CAPACITANCE
Symbol Input Capacitance Power Dissipation Capacitance Parameter Value Unit Test Conditions
FACT DATA
MC74AC378 MC74ACT378
OUTLINE DIMENSIONS
SUFFIX PLASTIC PACKAGE CASE 648-08 ISSUE
NOTES: DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: INCH. DIMENSION CENTER LEADS WHEN FORMED PARALLEL. DIMENSION DOES INCLUDE MOLD FLASH. ROUNDED CORNERS OPTIONAL. INCHES 0.740 0.770 0.250 0.270 0.145 0.175 0.015 0.021 0.040 0.70 0.100 0.050 0.008 0.015 0.110 0.130 0.295 0.305 0.020 0.040 MILLIMETERS 18.80 19.55 6.35 6.85 3.69 4.44 0.39 0.53 1.02 1.77 2.54 1.27 0.21 0.38 2.80 3.30 7.50 7.74 0.51 1.01
SEATING PLANE
0.25 (0.010)
SUFFIX PLASTIC SOIC PACKAGE CASE 751B-05 ISSUE
0.25 (0.010)
NOTES: DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: MILLIMETER. DIMENSIONS INCLUDE MOLD PROTRUSION. MAXIMUM MOLD PROTRUSION 0.15 (0.006) SIDE. DIMENSION DOES INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL 0.127 (0.005) TOTAL EXCESS DIMENSION MAXIMUM MATERIAL CONDITION. MILLIMETERS 9.80 10.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 0.19 0.25 0.10 0.25 5.80 6.20 0.25 0.50 INCHES 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 0.008 0.009 0.004 0.009 0.229 0.244 0.010 0.019
SEATING PLANE
0.25 (0.010)
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JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, Toshikatsu Otsuki, Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 03-3521-8315 HONG KONG: Motorola Semiconductors H.K. Ltd.; Ping Industrial Park, Ting Road, N.T., Hong Kong. 852-26629298
FACT DATA
*MC74AC378/D*
MC74AC378/D
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