M74HC4514M1中文资料
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1/12April 2003sHIGH SPEED:t PD = 20 ns (TYP .) at V CC = 6V sLOW POWER DISSIPATION:I CC = 4µA(MAX.) at T A =25°C sHIGH NOISE IMMUNITY:V NIH = V NIL = 28 % V CC (MIN.)sSYMMETRICAL OUTPUT IMPEDANCE:|I OH | = I OL = 4mA (MIN)sBALANCED PROPAGATION DELAYS:t PLH ≅ t PHLsWIDE OPERATING VOLTAGE RANGE:V CC (OPR) = 2V to 6VsPIN AND FUNCTION COMPATIBLE WITH 74 SERIES 4514DESCRIPTIONThe M74HC4514 is an high speed CMOS 4 LINE TO 16 LINE SEGMENT DECODER WITH LATCHED INPUTS fabricated with silicon gate C 2MOS technology.A binary code stored in the four input latches (A to D) provides a high level at the selected one of sixteen outputs excluding the other fifteen outputs,when the inhibit input (INHIBIT) is held low. When the inhibit input (INHIBIT) is held high, all outputs are kept low level, while the latch function isavailable. The data applied to the data inputs are transferred to the Q outputs of latches when the strobe input is held high. When the strobe input is taken low, the information data applied to the data input at a time is retained at the output of the latches.All inputs are equipped with protection circuits against static discharge and transient excess voltage.M74HC45144 TO 16 LINE DECODER/LATCHPIN CONNECTION AND IEC LOGIC SYMBOLSORDER CODESPACKAGE TUBE T & RDIP M74HC4514B1R SOP M74HC4514M1RM74HC4514RM13TR TSSOPM74HC4514TTRM74HC45142/12INPUT AND OUTPUT EQUIVALENT CIRCUITPIN DESCRIPTIONTRUTH TABLEX : Don’t CarePIN No SYMBOL NAME AND FUNCTION 1STROBE Strobe Input 2, 3, 21, 22 A to D Address Inputs11, 9, 10, 8, 7, 6, 5, 4, 18, 17, 20, 19, 14, 13, 16,15S0 to S15Multiplexer Outputs (Active HIGH)23INHIBIT Enable Input 12GND Ground (0V)24V CCPositive Supply VoltageINPUTSSTROBE SELECT OUTPUT INHIBIT A B C D L L L L L STROBE = "H"Refer to truth table STROBE = "L"Data at the negative going transition of strobe shall be provided on the each output while strobe is heldlow.S0L H L L L S1L L H L L S2L H H L L S3L L L H L S4L H L H L S5L L H H L S6L H H H L S7L L L L H S8L H L L H S9L L H L H S10L H H L H S11L L L H H S12L H L H H S13L L H H H S14L H H H H S15HXXXXALL OUTPUTS "L"M74HC45143/12LOGIC DIAGRAMThis logic diagram has not be used to estimate propagation delaysABSOLUTE MAXIMUM RATINGSAbsolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°CSymbol ParameterValue Unit V CC Supply Voltage -0.5 to +7V V I DC Input Voltage -0.5 to V CC + 0.5V V O DC Output Voltage -0.5 to V CC + 0.5V I IK DC Input Diode Current ± 20mA I OK DC Output Diode Current ± 20mA I O DC Output Current ± 25mA I CC or I GND DC V CC or Ground Current± 50mA P D Power Dissipation 500(*)mW T stg Storage Temperature -65 to +150°C T LLead Temperature (10 sec)300°CM74HC45144/12RECOMMENDED OPERATING CONDITIONSDC SPECIFICATIONSSymbol ParameterValue Unit V CC Supply Voltage 2 to 6V V I Input Voltage 0 to V CC V V O Output Voltage 0 to V CC V T op Operating Temperature -55 to 125°C t r , t fInput Rise and Fall TimeV CC = 2.0V 0 to 1000ns V CC = 4.5V 0 to 500ns V CC = 6.0V0 to 400nsSymbolParameterTest ConditionValue UnitV CC (V)T A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.V IHHigh Level Input Voltage2.0 1.5 1.5 1.5V 4.53.15 3.15 3.156.04.24.24.2V ILLow Level Input Voltage2.00.50.50.5V4.5 1.35 1.35 1.356.0 1.81.81.8V OHHigh Level Output Voltage2.0I O =-20 µA 1.9 2.0 1.9 1.9V4.5I O =-20 µA 4.4 4.5 4.4 4.46.0I O =-20 µA5.96.0 5.9 5.94.5I O =-4.0 mA 4.18 4.31 4.13 4.106.0I O =-5.2 mA 5.685.8 5.635.60V OLLow Level Output Voltage2.0I O =20 µA 0.00.10.10.1V 4.5I O =20 µA 0.00.10.10.16.0I O =20 µA 0.00.10.10.14.5I O =4.0 mA 0.170.260.370.406.0I O =5.2 mA 0.180.260.370.40I I Input Leakage Current6.0V I = V CC or GND ± 0.1± 1± 1µA I CCQuiescent Supply Current6.0V I = V CC or GND44080µAM74HC45145/12AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = t f = 6ns)CAPACITIVE CHARACTERISTICS1) C PD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I CC(opr) = C PD x V CC x f IN + I CCSymbolParameterTest ConditionValue UnitV CC (V)T A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.t TLH t THL Output TransitionTime 2.0307595110ns 4.581519256.07131623t PLH t PHL Propagation DelayTime(DATA - Sn) 2.065175220230ns4.5223544566.019303745t PLH t PHL Propagation DelayTime(STROBE- Sn.) 2.0751********ns4.5243544566.020303745t PLH t PHL Propagation DelayTime(INHIBIT - Sn) 2.060175220260ns4.5203544566.017303745t W(L)Minimum Pulse Width(STROBE) 2.0147595110ns4.561519266.06131623t sMinimum Set Up Time (DATA) 2.010506580ns4.521013206.0191117t hMinimum Hold Time (DATA)2.0555ns4.55556.0555SymbolParameterTest ConditionValue UnitV CC (V)T A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.C IN Input Capacitance 5101010pF C PDPower Dissipation Capacitance (note 1)61pFM74HC45146/12TEST CIRCUITLR T = Z OUT of pulse generator (typically 50Ω)SWITCHING CHARACTERISTICS TEST WAVEFORM (f=1MHz; 50% duty cycle)M74HC4514Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.© The ST logo is a registered trademark of STMicroelectronics© 2003 STMicroelectronics - Printed in Italy - All Rights ReservedSTMicroelectronics GROUP OF COMPANIESAustralia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States.© 12/12。