74VHC541T Fast Delivery |IC PHOENIX CO.,LIMITED

74VHC541T ,OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED74VHC541 OCTAL BUS BUFFERWITH 3 STATE OUTPUTS (NON INVERTED)n HIGH SPEED: t = 3.6 ns (TYP.) at V = ..
74VHC541TTR ,OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional o ..
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74VHC541T
OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED
74VHC541
OCTAL BUS BUFFER
WITH3 STATE OUTPUTS (NON INVERTED)
June 1999 HIGH SPEED:tPD =3.6ns (TYP.)at VCC =5V LOWPOWER DISSIPATION:
ICC =4 μA (MAX.)atTA =25oC HIGH NOISE IMMUNITY:
VNIH =VNIL =28% VCC (MIN.) POWERDOWN PROTECTIONON INPUTS SYMMETRICAL OUTPUT IMPEDANCE:
|IOH|=IOL=8 mA(MIN) BALANCED PROPAGATIONDELAYS:
tPLH≅ tPHL OPERATINGVOLTAGERANGE:
VCC (OPR)= 2Vto 5.5V PIN AND FUNCTION COMPATIBLE WITH SERIES541 IMPROVEDLATCH-UP IMMUNITY LOWNOISE: VOLP= 0.9V (Max.)
DESCRIPTION
The VHC541is an advanced high speed CMOS
OCTAL BUS BUFFER (3-STATE) fabricated with
sub-micron silicon gate and double-layer metal
wiringC2 MOS technology.
The3 STATE control gate operates asa two
input AND such thatif either G1 and G2 are high,
all eight outputs arein the high impedance state. orderto enhance PC board layout, the AC541
offersa pinout having inputs and outputs on
opposite sidesof the package.
Power down protectionis provided on all inputs
and0to 7V can be acceptedon inputs with no
regardto the supply voltage. This device canbe
usedto interface5Vto 3V.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES:
74VHC541M 74VHC541T
(Micro Package)
(TSSOP Package)
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TRUTH TABLE
INPUT OUTPUT G2 An Yn XXZ XZ H H
LLL L
X:”H” or”L”
Z:Highimpedance
PIN DESCRIPTION
PIN No SYMBOL NAME AND FUNCTION
1,19 G1,G2 Output Enable Input
2,3, 4,5,
6,7,8,9
A1toA8 Data Inputs
18,17,16,
15,14,13,
12,11
Y1toY8 Data Outputs GND Ground (0V) VCC Positive Supply Voltage
INPUT EQUIVALENT CIRCUIT
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
VCC Supply Voltage -0.5to+7.0 V DC Input Voltage -0.5to+7.0 V DC Output Voltage -0.5toVCC +0.5 V
IIK DC Input Diode Current -20 mA
IOK DC Output Diode Current ±20 mA DC Output Current ±25 mA
ICCorIGND DC VCCor Ground Current ±75 mA
Tstg Storage Temperature -65 to+150 oC Lead Temperature (10 sec) 300 oC
AbsoluteMaximumRatingsarethosevalues beyond whichdamage tothedevicemayoccur. Functionaloperationunderthese condition isnot implied.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
VCC Supply Voltage 2.0to5.5 V Input Voltage 0to5.5 V Output Voltage 0toVCC V
Top Operating Temperature -40 to+85 oC
dt/dv Input Rise and Fall Time (see note1) (VCC =3.3± 0.3V)
(VCC =5.0± 0.5V)
0to100
0to20
ns/V
ns/V
1)VINfrom30%to70%ofVCC
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ELECTRICAL CHARACTERISTICS (Inputtr =tf=3 ns)Symbol Parameter Test Condition Value Unit
VCC
(V)
(pF) =25oC -40to85oC
Min. Typ. Max. Min. Max.
tPLH
tPHL
Propagation Delay
Time
3.3(*) 15 5.0 7.0 1.0 8.53.3(*) 50 7.5 10.5 1.0 12.0
5.0(**) 15 3.5 5.0 1.0 6.0
5.0(**) 50 5.0 7.0 1.0 8.0
tPZL
tPZH
Output Enable Time 3.3(*) 15 RL =1KΩ 6.8 10.5 1.0 12.53.3(*) 50 RL =1KΩ 9.3 14.0 1.0 16.0
5.0(**) 15 RL=1KΩ 4.7 7.2 1.0 8.5
5.0(**) 50 RL=1KΩ 6.2 9.2 1.0 10.5
tPLZ
tPHZ
Output Disable Time 3.3(*) 50 RL =1KΩ 11.2 15.4 1.0 17.5 ns
5.0(**) 50 RL =1KΩ 6.0 8.8 1.0 10.0
tOSLH
tOSHL
Outputto Output Skew
Time (note1)
3.3(*) 50 1.5 1.5 ns
5.0(**) 50 1.0 1.0
(*) Voltagerangeis3.3V ±0.3V
(**) Voltagerangeis 5V±0.5V
Note1:Parameterguaranteed bydesign.tsoLH=|tpLHm-tpLHn|,tsoHL=|tpHLm-tpHLn| SPECIFICATIONS
Symbol Parameter Test Conditions Value Unit
VCC
(V) =25oC -40to85oC
Min. Typ. Max. Min. Max.
VIH High Level Input
Voltage
2.0 1.5 1.5 V3.0to5.5 0.7VCC 0.7VCC
VIL Low Level Input
Voltage
2.0 0.5 0.5 V3.0to5.5 0.3VCC 0.3VCC
VOH High Level Output
Voltage
2.0 IO=-50μA1.9 2.0 1.9
3.0 IO=-50μA2.9 3.0 2.9
4.5 IO=-50μA4.4 4.5 4.4
3.0 IO=-4mA 2.58 2.48
4.5 IO=-8mA 3.94 3.8
VOL Low Level Output
Voltage
2.0 IO=50μA 0.0 0.1 0.1
3.0 IO=50μA 0.0 0.1 0.1
4.5 IO=50μA 0.0 0.1 0.1
3.0 IO=4mA 0.36 0.44
4.5 IO=8mA 0.36 0.44
IOZ High Impedance
Output Leakage
Current
VI=VIH orVIL =VCCorGND
±0.25 ±2.5 μA Input Leakage Current 0 to5.5 VI =5.5VorGND ±0.1 ±1.0 μA
ICC Quiescent Supply
Current
5.5 VI =VCC orGND 4 40 μA
74VHC541
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CAPACITIVE CHARACTERISTICS
Symbol Parameter Test Conditions Value Unit =25oC -40to85oC
Min. Typ. Max. Min. Max.
CIN Input Capacitance 4 10 10 pF
COUT Output Capacitance 6 pF
CPD Power Dissipation
Capacitance (note1) pF
1)CPDisdefinedasthevalueoftheIC’sinternalequivalentcapacitance whichiscalculatedfromtheoperatingcurrentconsumption withoutload.(Referto
TestCircuit).Average operatingcurrent canbeobtained bythefollowingequation. ICC(opr)= CPD• VCC• fIN+ICC/8(per Circuit)
TEST CIRCUIT
TEST SWITCH
tPLH,tPHL Open
tPZL,tPLZ VCC
tPZH,tPHZ GND =15/50 pForequivalent (includes jigand probecapacitance) =R1 =1KΩorequivalent
RT=ZOUTofpulsegenerator (typically50Ω)
DYNAMIC SWITCHING CHARACTERISTICS
Symbol Parameter Test Conditions Value Unit
VCC
(V) =25oC -40to85oC
Min. Typ. Max. Min. Max.
VOLP Dynamic Low Voltage
Quiet Output (note1,2)
CL=50pF
0.6 0.9
VOLV -0.9 -0.6
VIHD Dynamic High Voltage
Input (note1,3)
5.0 3.5
VILD Dynamic Low Voltage
Input (note1,3)
5.0 1.5
1)Worst case package.
2)Maxnumber ofoutputs defined as(n).Datainputs aredriven0Vto5.0V,(n -1)outputs switching andoneoutput atGND.
3)Maxnumber ofdatainputs(n)switching.(n-1)switching0Vto5.0V.Inputsunder testswitching: 5.0Vtothreshold(VILD),0Vtothreshold(VIHD),f=1MHz.
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WAVEFORM1: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
WAVEFORM2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
74VHC541
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DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX. 0.254 0.010 1.39 1.65 0.055 0.065 0.45 0.018 0.25 0.010 25.4 1.000 8.5 0.335 2.54 0.100 22.86 0.900 7.1 0.280 3.93 0.155 3.3 0.130 1.34 0.053
P001J
Plastic DIP-20 (0.25) MECHANICAL DATA
74VHC541
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Partno	Mfg	Dc	Qty	Available	Descript
74VHC541T	ST	N/a	322	avai	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED