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74FST3245 Datenblatt(PDF) 3 Page - ON Semiconductor

Teilenummer 74FST3245
Bauteilbeschribung  8-Bit Bus Switch
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Hersteller  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

74FST3245 Datenblatt(HTML) 3 Page - ON Semiconductor

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3
DC ELECTRICAL CHARACTERISTICS
VCC
TA = –40_C to )85_C
Symbol
Parameter
Conditions
(V)
Min
Typ*
Max
Unit
VIK
Clamp Diode Resistance
IIN = –18mA
4.5
–1.2
V
VIH
High–Level Input Voltage
4.0 to 5.5
2.0
V
VIL
Low–Level Input Voltage
4.0 to 5.5
0.8
V
II
Input Leakage Current
0
v VIN v 5.5 V
5.5
$1.0
mA
IOZ
OFF–STATE Leakage Current
0
v A, B v VCC
5.5
$1.0
mA
RON
Switch On Resistance (Note 6)
VIN = 0 V, IIN = 64 mA
4.5
4
7
W
VIN = 0 V, IIN = 30 mA
4.5
4
7
VIN = 2.4 V, IIN = 15 mA
4.5
8
15
VIN = 2.4 V, IIN = 15 mA
4.0
11
20
ICC
Quiescent Supply Current
VIN = VCC or GND, IOUT = 0
5.5
3
mA
DICC
Increase In ICC per Input
One input at 3.4 V, Other inputs at VCC or GND
5.5
2.5
mA
*Typical values are at VCC = 5.0 V and TA = 25_C.
6. Measured by the voltage drop between A and B pins at the indicated current through the switch.
AC ELECTRICAL CHARACTERISTICS
Limits
TA = –40_C to )85_C
VCC = 4.5 to 5.5 V
VCC = 4.0 V
Symbol
Parameter
Conditions
Figures
Min
Max
Min
Max
Unit
tPHL,
tPLH
Prop Delay Bus to Bus
(Note 7)
VI = OPEN
3 and 4
0.25
0.25
ns
tPZH,
tPZL
Output Enable Time
VI = 7 V for tPZL
VI = OPEN for tPZH
3 and 4
1.5
5.9
6.4
ns
tPHZ,
tPLZ
Output Disable Time
VI = 7 V for tPLZ
VI = OPEN for tPHZ
3 and 4
1.5
6.0
5.7
ns
7. This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the
typical On resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).
CAPACITANCE (Note 8)
Symbol
Parameter
Conditions
Typ
Max
Unit
CIN
Control Pin Input Capacitance
VCC = 5.0 V
3
pF
CI/O
Input/Output Capacitance
VCC, OE = 5.0 V
5
pF
8. TA = )25_C, f = 1 MHz, Capacitance is characterized but not tested.


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