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NC7WB66 Datasheet, PDF (4/8 Pages) Fairchild Semiconductor – TinyLogic. Low Voltage UHS Dual SPST Normally Open Bus Switch
DC Electrical Characteristics (Continued)
Symbol
Parameter
VCC
TA = +25°C
TA= −40°C to +85°C Units
(V)
Min
Typ
Max
Min
Max
Conditions
Rflat
ON Resistance Flatness
4.5
2.5
6
6
IO = −30 mA, 0 ≤ VI ≤ VCC
(Note 4)(Note 5)(Note 6)
3.0
8
17.5
17.5
IO = −24 mA, 0 ≤ VI ≤ VCC
2.3
33
60
60
IO = −8 mA, 0 ≤ VI ≤ VCC
1.65
135
250
250
IO = −4 mA, 0 ≤ VI ≤ VCC
Note 4: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the
voltages on the two (A or B) pins.
Note 5: Guaranteed by design.
Note 6: Flatness is defined as the difference between the minimum and maximum value of ON resistance over the specified range of conditions.
Note 7: ∆RON = RON max − RON min measured at identical VCC, temperature and voltage levels.
AC Electrical Characteristics
Symbol
Parameter
VCC
TA= −40°C to +85°C
Units
(V)
Min
Typ
Max
Conditions
Figure
Number
tPHL, tPLH Propagation Delay Bus to Bus
(Note 8)
4.5–5.5
3.0–3.6
2.3–2.7
1.65–1.95
0.35
1.0
0.7
1.5
1.1
2.5
2.0
4.0
ns
VI = OPEN
CL = 50 pF, RU = RD = 500Ω
Figures
2, 1
tPZL, tPZH Output Enable Time
4.5–5.5
0.8
2.0
3.2
Turn on Time
3.0–3.6
1.2
2.5
3.9
2.3–2.7
1.5
3.2
5.6
ns
VI = 0V for tPZH
VI = 2 x VCC for tPZL
Figures
2, 1
1.65–1.95 2.5
5.7
10
CL = 50 pF, RU = RD = 500Ω
tPLZ, tPHZ Output Disable Time
4.5–5.5
0.8
2.6
4.1
Turn Off Time
3.0–3.6
1.5
3.4
5.0
2.3–2.7
2.0
4.2
6.9
ns
VI = 0V for tPHZ
VI = 2 x VCC for tPLZ
Figures
2, 1
1.65–1.95 3.0
6.2
10.5
CL = 50 pF, RU = RD = 500Ω
Note 8: This parameter is guaranteed by design. The switch contributes no propagation delay other than the RC delay of the On resistance of the switch and
the 50 pF load capacitance.
Capacitance
Symbol
Parameter
Typ
CIN
Control Pin Input Capacitance
2.5
CI/O (OFF) Switch Port Off Capacitance
5
CI/O (ON) Switch Port Capacitance when Switch is Enabled
10
Max
Units
pF
pF
pF
Conditions
VCC = 0V
VCC = 5.0V
VCC = 5.0V
Figures
Figure 3
Figure 4
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