HC7645 HC7640 HC7643
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Top Searches for this datasheet
HC245 h - HC245 h
HC7645 - HC7645
HC7640 - HC7640
HC7643 - HC7643
M54HC7245/7640/7643/7645 M74HC7245/7640/7643/7645
OCTAL TRANSCEIVER (3-STATE): HC7645 INVERTING HC7640 INVERTING HC7643 INVERTING/NON INVERTING
HIGH SPEED (TYP.) POWER DISSIPATION (MAX.) HIGH NOISE IMMUNITY (TYP.) OUTPUT DRIVE CAPABILITY LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE |IOH| (MIN) BALANCED PROPAGATION DELAYS tPLH tPHL WIDE OPERATING RANGE (OPR) FUNCTION COMPATIBLE WITH 54/74LS245/640/643
(Plastic Package)
(Ceramic Package)
(Micro Package)
(Chip Carrier)
ORDER CODES M54HCXXXXF1R M74HCXXXXM1R M74HCXXXXB1R M74HCXXXXC1R
DESCRIPTION M54/74HC7245 HC7640, HC7643 HC7645 utilise silicon gate C2MOS technology achive operating speeds equivalent LSTTL devices. Along with power dissipation high noise immunity standads integrated circuit, possesses capability drive LSTTL loads. These IC's intended two-way asynchronous communication between data buses, direction data trasmission determined input. enable input used disable device that buses effectively isolated. HC7245/640/7643/7645 have same CONNECTION (top view)
HC7640 HC7643 HC7645/HC7245
configuration function HC245/640/643 they have hysteresis characteristics with each input, HC7245/7640/7643/7645 used line receiver, etc. input equipped with protection circuits against static discharge transient excess voltage. PROHIBITED APPLY SIGNAL TERMINAL WHEN OUTPUT MODE WHEN THERMINAL FLOATING (HIGH IMPEDANCE STATE), REQUESTED INPUT LEVEL MEANS EXTERNAL PULL DOWN PULL RESISTOR.
HC7245 electrically funcutionally same HC7645
January 1994
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M54/M74HC7245/7640/7643/7645
INPUT OUTPUT EQUIVALENT CIRCUIT DESCRIPTION
SYMBOL NAME FUNCTION Directional Control Data Inputs/Outputs Data Inputs/Outputs
Output Enabel Input (Active LOW) Ground (0V) Positive Supply Voltage
LOGIC SYMBOLS
HC7640 HC7643 HC7645
TRUTH TABLE
INPUT
High impedance
FUNCTION OUTPUT INPUT INPUT OUTPUT HC7640
OUTPUT HC7643 HC7645/7245
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M54/M74HC7245/ 7640/7643/7645
ABSOLUTE MAXIMUM RATINGS
Symbol IGND Tstg Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Source Sink Current Output Ground Current Power Dissipation Storage Temperature Lead Temperature sec) Parameter Value -0.5 -0.5 -0.5 +150 Unit
Absolute Maximum Ratings those values beyond which damage device occur. Functional operation under these condition isnotimplied. derate 10mW/oC:
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Supply Voltage Input Voltage Output Voltage Operating Temperature: M54HC Series M74HC Series Value +125 Unit
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M54/M74HC7245/7640/7643/7645
SPECIFICATIONS
Test Conditions Symbol Parameter Level Output Voltage Input Leakage Current Quiescent Supply Current Quiescent Supply Current IO=-20 IO=-6.0 IO=-7.8 4.18 5.68 4.31 0.17 0.18 0.26 0.26 ±0.1 54HC 74HC Min. Typ. Max. 1.13 3.15 1.35 4.13 5.63 0.33 0.33 1.25 0.65 3.15 Value 74HC 54HC Min. Max. Min. Max. 1.13 3.15 1.35 4.10 5.60 0.40 0.40 3.15 1.13 3.15 1.35 3.15 Unit
Positive Threshold Voltage (An, inputs) Negative Threshold Voltage (An, inputs) Hysteresiis Voltage (An, inputs) High Level Input Voltage (DIR, inputs) Level Input Voltage (DIR, inputs) High Level Output Voltage
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M54/M74HC7245/ 7640/7643/7645
ELECTRICAL CHARACTERISTICS Input
Test Conditions Symbol Parameter tPZL tPZH tPLZ tPHZ COUT Output Enable Time Output Disable Time Input Capacitance Output Capacitance Power Dissipation Capacitance 54HC 74HC Min. Typ. Max. Value 74HC 54HC Min. Max. Min. Max. Unit
tTLH tTHL tPLH tPHL
Output Transition Time Propagation Delay Time
defined value IC's internal equivalent capacitance which calculated from operating current consumption without load. (Refer Test Circuit). Average operting current obtained following equation. ICC(opr) ICC/4 (per Gate)
SWITCHING CHARACTERISTICS TEST WAVEFORM
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M54/M74HC7245/7640/7643/7645
Plastic DIP20 (0.25) MECHANICAL DATA
MIN. 1.34 2.54 22.86 3.93 0.130 0.053 0.254 1.39 0.45 0.25 25.4 0.335 0.100 0.900 0.280 0.155 1.65 TYP. MAX. MIN. 0.010 0.055 0.018 0.010 1.000 0.065 inch TYP. MAX.
DIM.
P001J
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M54/M74HC7245/ 7640/7643/7645
Ceramic DIP20 MECHANICAL DATA
MIN. 2.29 1.27 0.22 0.51 22.86 2.79 0.55 1.52 0.31 1.27 0.090 0.016 0.050 0.009 0.020 1.78 0.020 0.900 0.110 0.022 0.060 0.012 0.050 TYP. MAX. 0.130 0.070 MIN. inch TYP. MAX. 0.984 0.307
DIM.
(min.), (max.) 8.13 5.71 0.311 0.320 0.225
P057H
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M54/M74HC7245/7640/7643/7645
SO20 MECHANICAL DATA
DIM. MIN. 7.40 0.50 12.60 10.00 1.27 11.43 7.60 1.27 0.75 (max.) 0.291 0.19 13.00 10.65 0.35 0.23 0.50 (typ.) 0.496 0.393 0.050 0.450 0.299 0.050 0.029 0.512 0.419 0.10 TYP. MAX. 2.65 0.20 2.45 0.49 0.32 0.013 0.009 0.020 0.004 MIN. inch TYP. MAX. 0.104 0.007 0.096 0.019 0.012
P013L
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M54/M74HC7245/ 7640/7643/7645
PLCC20 MECHANICAL DATA
MIN. 1.27 1.14 7.37 1.27 5.08 0.38 0.101 0.050 0.045 9.78 8.89 2.54 0.56 8.38 0.290 0.050 0.200 0.015 0.004 TYP. MAX. 10.03 9.04 4.57 MIN. 0.385 0.350 0.165 0.100 0.022 0.330 inch TYP. MAX. 0.395 0.356 0.180
DIM.
P027A
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M54/M74HC7245/7640/7643/7645
Information furnished believed accurate reliable. However, SGS-THOMSON Microelectronics assumes responsability consequences such information infringement patents other rights third parties which results from use. license granted implication otherwise under patent patent rights SGS-THOMSON Microelectronics. Specifications mentioned this publication subject change without notice. This publication supersedes replaces information previously supplied. SGS-THOMSON Microelectronics products authorized ascritical components life support devices systems without express written approval SGS-THOMSON Microelectonics. 1994 SGS-THOMSON Microelectronics Rights Reserved SGS-THOMSON Microelectronics GROUP COMPANIES Australia Brazil France Germany Hong Kong Italy Japan Korea Malaysia Malta Morocco Netherlands Singapore Spain Sweden Switzerland Taiwan Thailand United Kingdom U.S.A
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