Octal Transceiver/Register with State Outputs (Non inverting) MC7
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MC74AC646 MC74ACT646
Octal Transceiver/Register with State Outputs (Non inverting)
MC74AC646/74ACT646 consist registered transceiver circuits, with outputs, D-type flip-flops control circuitry providing multiplexed transmission data directly from input from internal storage registers. Data will loaded into respective registers LOW-to-HIGH transition appropriate clock (CAB CBA). four fundamental data handling functions available illustrated following figures.
OCTAL TRANSCEIVER/REGISTER WITH 3-STATE OUTPUTS (NON-INVERTING)
REAL TIME TRANSFER A-BUS B-BUS A-BUS
REAL TIME TRANSFER B-BUS A-BUS A-BUS
SUFFIX CASE 724-03 PLASTIC
B-BUS
B-BUS
Figure
Figure
SUFFIX CASE 751E-04 SOIC PACKAGE
STORAGE FROM REGISTER A-BUS
TRANSFER FROM REGISTER A-BUS
LOGIC SYMBOL
B-BUS
B-BUS
Figure
Figure
Independent Registers Buses Multiplexed Real-Time Stored Data Transfers Choice True Inverting Data Paths 3-State Outputs Slim Dual In-Line Package Outputs Source/Sink ACT646 Compatible Inputs
FACT DATA
MC74AC646 MC74ACT646
FUNCTION TABLE
Inputs A0-A7 Input Output Input Data I/O* Operation Function B0-B7 Input Input Output Isolation Store Data Real Time Data Stored Data Real Time Data Stored Data
data output functions enabled disabled various signals inputs. Data input functions always enabled; i.e., data pins will stored every LOW-to-HIGH transition appropriate clock inputs. HIGH Voltage Level Voltage Level Immaterial LOW-to-HIGH Transition
LOGIC DIAGRAM
CHANNELS
NAMES A0-A7 B0-B7 CAB, SAB, DIR, Data Register Inputs Data Register Outputs Data Register Inputs Data Register Outputs Clock Pulse Inputs Transmit/Receive Inputs Output Enable Inputs
OTHER CHANNELS
Please note that this diagram provided only understanding logic operations should used estimate propagation delays.
FACT DATA
MC74AC646 MC74ACT646
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.
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.
FACT DATA
MC74AC646 MC74ACT646
CHARACTERISTICS
74AC Symbol Parameter +25°C Minimum High Level Input Voltage Maximum Level Output Voltage IOZT Maximum Input Leakage Current Maximum 3-State 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, (OE) VIL, VCC, VCC, VOLD 1.65 VOHD 3.85
Maximum Level Input Voltage
Minimum High Level Output Voltage
±0.6
±6.0
IOLD IOHD
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
MC74AC646 MC74ACT646
CHARACTERISTICS (For Figures Waveforms Section
74AC Symbol Parameter VCC* tPLH tPHL tPLH tPHL Propagation Delay Clock Propagation Delay Clock Propagation Delay Propagation Delay Propagation Delay (w/An HIGH LOW) Propagation Delay (w/An HIGH LOW) Enable Time Enable Time Disable Time Disable Time Enable Time Enable Time Disable Time Disable Time +25°C 10.5 16.5 14.5 10.5 12.5 13.5 13.5 11.5 12.5 12.5 11.5 11.5 74AC -40°C +85°C 18.5 11.5 13.5 13.5 15.5 12.5 13.5 13.5 10.5 12.5 13.5 10.5 Unit Fig.
tPLH
tPHL
tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ
Voltage Range ±0.3 Voltage Range ±0.5
FACT DATA
MC74AC646 MC74ACT646
OPERATING REQUIREMENTS
74AC Symbol Parameter VCC* Setup Time, HIGH Clock Hold Time, HIGH Clock Clock Pulse Width HIGH -1.5 -0.5 +25°C 74AC -40°C +85°C Unit Fig.
Guaranteed Minimum
Voltage Range ±0.3 Voltage Range ±0.5
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 IOZT Maximum Input Leakage Current Additional Max. ICC/Input Maximum 3-State Current Minimum Dynamic Output Current Maximum Quiescent Supply Current ±0.6 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 ±6.0 VOUT VOUT IOUT *VIN IOUT *VIN VCC, (OE) VIL, VCC, VCC, VOLD 1.65 VOHD 3.85
IOLD IOHD
outputs loaded; thresholds input associated with output under test. Maximum test duration output loaded time.
FACT DATA
MC74AC646 MC74ACT646
CHARACTERISTICS (For Figures Waveforms Section
74ACT Symbol Parameter VCC* tPLH tPHL tPLH tPHL Propagation Delay Clock Propagation Delay Clock Propagation Delay Propagation Delay Propagation Delay (w/An HIGH LOW) Propagation Delay (w/An HIGH LOW) Enable Time Enable Time Disable Time Disable Time Enable Time Enable Time Disable Time Disable Time +25°C 12.0 12.0 14.5 14.5 11.0 11.0 74ACT -40°C +85°C 16.0 16.0 12.0 12.0 Unit Fig.
tPLH
12.0
13.0
tPHL
12.0
13.0
tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ
10.5 10.0
11.0 11.0 13.0 12.5 12.5 12.5 12.5 12.5
12.0 12.0 14.5 14.0 13.5 13.5 13.5 13.5
Voltage Range ±0.5
FACT DATA
MC74AC646 MC74ACT646
OPERATING REQUIREMENTS
74ACT Symbol Parameter VCC* Setup Time, HIGH Clock Hold Time, HIGH Clock Clock Pulse Width HIGH +25°C 74ACT -40°C +85°C Unit Fig.
Guaranteed Minimum
Voltage Range ±0.5
CAPACITANCE
Symbol CI/O Input Capacitance Input/Output Capacitance Power Dissipation Capacitance Parameter Value Unit Test Conditions
FACT DATA
MC74AC646 MC74ACT646
OUTLINE DIMENSIONS
SUFFIX PLASTIC PACKAGE CASE 724-03 ISSUE
NOTES: CHAMFERED CONTOUR OPTIONAL. DIMENSION CENTER LEADS WHEN FORMED PARALLEL. DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: INCH. INCHES 1.230 1.265 0.250 0.270 0.145 0.175 0.015 0.020 0.050 0.040 0.060 0.100 0.007 0.012 0.110 0.140 0.300 0.020 0.040 MILLIMETERS 31.25 32.13 6.35 6.85 3.69 4.44 0.38 0.51 1.27 1.02 1.52 2.54 0.18 0.30 2.80 3.55 7.62 0.51 1.01
SEATING PLANE
NOTE
0.25 (0.010)
0.25 (0.010)
SUFFIX PLASTIC SOIC PACKAGE CASE 751E-04 ISSUE
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 0.13 (0.005) TOTAL EXCESS DIMENSION MAXIMUM MATERIAL CONDITION. MILLIMETERS 15.25 15.54 7.40 7.60 2.35 2.65 0.35 0.49 0.41 0.90 1.27 0.23 0.32 0.13 0.29 10.05 10.55 0.25 0.75 INCHES 0.601 0.612 0.292 0.299 0.093 0.104 0.014 0.019 0.016 0.035 0.050 0.009 0.013 0.005 0.011 0.395 0.415 0.010 0.029
0.010 (0.25)
0.010 (0.25)
SEATING PLANE
Motorola reserves right make changes without further notice products herein. Motorola makes warranty, representation guarantee regarding suitability products particular purpose, does Motorola assume liability arising application product circuit, specifically disclaims liability, including without limitation consequential incidental damages. "Typical" parameters vary different applications. operating parameters, including "Typicals" must validated each customer application customer's technical experts. Motorola does convey license under patent rights rights others. Motorola products designed, intended, authorized components systems intended surgical implant into body, other applications intended support sustain life, other application which failure Motorola product could create situation where personal injury death occur. Should Buyer purchase Motorola products such unintended unauthorized application, Buyer shall indemnify hold Motorola officers, employees, subsidiaries, affiliates, distributors harmless against claims, costs, damages, expenses, reasonable attorney fees arising directly indirectly, claim personal injury death associated with such unintended unauthorized use, even such claim alleges that Motorola negligent regarding design manufacture part. Motorola registered trademarks Motorola, Inc. Motorola, Inc. Equal Opportunity/Affirmative Action Employer.
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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
*MC74AC646/D*
MC74AC646/D
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