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74LVQ241 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. 74LVQ241
Description  LOW VOLTAGE OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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74LVQ241 Datasheet(HTML) 4 Page - STMicroelectronics

   
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CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
Test Co nditi ons
Valu e
Un it
VCC
(V)
TA =25
oC
-40 to 85
oC
Min.
T yp.
Max.
Mi n.
Max.
CIN
Input Capacitance
3.3
5
pF
COUT
Output Capacitance
3.3
10
pF
CPD
Power Dissipation
Capacitance (note 1)
3.3
fIN =10 MHz
15
pF
1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
Test Circuit).Average operting current can be obtained by the following equation. ICC(opr) = CPD
• VCC • fIN +ICC/8(per circuit)
TEST CIRCUIT
T EST
SW IT CH
tPLH,tPHL
Open
tPZL,tPLZ
2VCC
tPZH,tPHZ
OPEN
CL = 50 pF or equivalent (includes jigand probe capacitance)
RL =R1 =500
Ω orequivalent
RT =ZOUT of pulse generator (typically 50
Ω)
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500
Ω, Input tr =tf =3 ns)
Symb ol
Parameter
T est Con ditio n
Valu e
Un it
VCC
(V)
TA =25
oC
-40 to 85
oC
Min.
T yp.
Max.
Mi n.
Max.
tPLH
tPHL
Propagation Delay Time
2.7
7
13
14
ns
3.3
(*)
69
9.5
tPZL
tPZH
Output Enable Time
2.7
8.5
17
18
ns
3.3
(*)
7
12
12.5
tPLZ
tPHZ
Output Disable Time
2.7
9
19
20
ns
3.3
(*)
7.5
13.5
14
tOSLH
tOSHL
Output to Output Skew
Time (note 1, 2)
2.7
0.5
1.5
1.5
ns
3.3
(*)
0.5
1.5
1.5
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any twooutputs of the same device switching in the
same direction, either HIGH or LOW (tOSLH =|tPLHm -tPLHn|, tOSHL =|tPHLm -tpHLn|)
2) Parameter guaranteed by design
(*) Voltage range is 3.3V
± 0.3V
74LVQ241
4/8


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