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74VCXH16240T-1999 View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
74VCXH16240T(1999) LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE INV.) WITH 3.6V TOLERANT INPUTS AND OUTPUTS ST-Microelectronics
STMicroelectronics ST-Microelectronics
74VCXH16240T Datasheet PDF : 9 Pages
1 2 3 4 5 6 7 8 9
74VCXH16240
DYNAMIC SWITCHING CHARACTERISTICS (Ta = 25oC, Input tr = tf = 2.0ns, CL = 30pF, RL = 500)
Symb ol
P a ra met er
Test Con dition s
VCC
(V)
Value
TA = 25 oC
Min. Typ. Max.
Unit
VOLP Dynamic Low Voltage Quiet Output
2.5
(note 1, 3)
3.3
VIL = 0 V
VIH = VCC
0.6
V
0.8
VOLV Dynamic Low Voltage Quiet Output
2.5
(note 1, 3)
3.3
VIL = 0 V
VIH = VCC
-0.6
V
-0.8
VOHV Dynamic High Voltage Quiet Output
2.5
(note 2, 3)
3.3
VIL = 0 V
VIH = VCC
1.9
V
2.2
1) Number ofoutputs defined as ”n”. Measured with”n-1” outputs switching from HIGH to LOW or LOW t o HIGH. The remaining output is measured in
the LOW state.
2) Number ofoutputs defined as ”n”. Measured with”n-1” outputs switching from HIGH to LOW or LOW t o HIGH. The remaining output is measured in
the HIGH state.
3) Parameters guaranteed by design.
AC ELECTRICAL CHARACTERISTICS (CL = 30 pF, RL = 500 , Input tr = tf = 2.0 ns)
Symb ol
Parameter
Test Condition
VCC
W av ef o rm
(V)
Value
-40 to 85 oC
Min. Max.
Un it
tPLH Propagation Delay Time
tPHL
2.3 to 2.7
3.0 to 3.6
1
1.0 3.0
ns
0.8 2.5
tPZL Output Enable Time
tPZH
2.3 to 2.7
3.0 to 3.6
2
1.0 4.1
ns
0.8 3.5
tPLZ Output Disable Time
tPHZ
2.3 to 2.7
3.0 to 3.6
2
1.0 3.8
ns
0.8 3.5
tOSLH Output to Output Skew Time (note 1, 2)
tOSHL
2.3 to 2.7
3.0 to 3.6
0.5 ns
0.5
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
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
Test Co nditi ons
VCC
(V)
Valu e
TA = 25 oC
Min. T yp. Max.
Unit
CIN Input Capacitance
2.5 or 3.3
VIN = 0V or VCC
6
pF
COUT Output Capacitance
2.5 or 3.3
VIN = 0V or VCC
7
pF
CPD Power Dissipation Capacitance (note 1) 2.5 or 3.3
fIN = 10MHz
20
pF
VIN = 0V or VCC
1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. Average
operting current can be obtained by the following equation. ICC(opr) = CPD VCC fIN + ICC/16 (per circuit)
5/9
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