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CD74AC253_07 Datasheet, PDF (5/15 Pages) Texas Instruments – Dual 4-Input Multiplexer, Three-State
CD74AC253, CD54/74ACT253
ACT Input Load Table
INPUT
UNIT LOAD
S0, S1, nI0, nI1
1
nOE
0.83
NTaObTleE, :e.Ug.n,i2t l.o4amdAism∆aICxCatlim25itosCp.ecified in DC Electrical Specifications
Switching Specifications Input tr, tf = 3ns, CL = 50pF (Worst Case)
-40oC TO 85oC
-55oC TO 125oC
PARAMETER
AC TYPES
SYMBOL
VCC (V)
MIN
TYP
MAX
MIN
TYP
MAX UNITS
Propagation Delay,
S0, S1, to Y
tPLH, tPHL
1.5
-
3.3
7.2
(Note 9)
-
227
-
-
25
7
-
250
ns
-
28
ns
5
5.2
(Note 10)
-
18.2
5
-
20
ns
Propagation Delay,
nI to Y
tPLH, tPHL
1.5
-
-
151
-
-
166
ns
3.3
4.8
-
16.9
4.7
-
18.6
ns
5
3.4
-
12.1
3.3
-
13.3
ns
Propagation Delay,
Output Enable,
Output Disable to Y
tPLZ, tPHZ,
1.5
-
-
131
-
-
144
ns
tPZL, tPZH
3.3
4.5
-
15.7
4.3
-
17.3
ns
5
3
-
10.5
2.9
-
11.5
ns
Three-State Output
Capacitance
CO
-
-
-
15
-
-
15
pF
Input Capacitance
CI
-
Power Dissipation Capacitance
CPD
-
(Note 11)
-
-
10
-
-
10
pF
-
107
-
-
107
-
pF
ACT TYPES
Propagation Delay,
S0, S1, to Y
tPLH, tPHL
5
5.7
(Note 10)
-
20
5.5
-
22
ns
Propagation Delay,
nI to Y
tPLH, tPHL
5
4.6
-
16.4
4.5
-
18
ns
Propagation Delay,
Output Enable,
Output Disable to Y
tPLZ, tPHZ,
5
tPZL, tPZH
3.2
-
11.5
3.2
-
12.6
ns
Three-State Output
Capacitance
CO
-
-
-
15
-
-
15
pF
Input Capacitance
CI
-
Power Dissipation Capacitance
CPD
-
(Note 11)
-
-
10
-
-
10
pF
-
107
-
-
107
-
pF
NOTES:
8. Limits tested 100%.
9. 3.3V Min is at 3.6V, Max is at 3V.
10. 5V Min is at 5.5V, Max is at 4.5V.
11. CPD is used to determine the dynamic power consumption per multiplexer.
AACC:TP: PDD==VVCCCC2 2fi
(CPD + CL)
fi (CPD + CL)
+
VCC
∆ICC
where
fi
=
input
frequency,
CL
=
output
load
capacitance,
VCC
=
supply
voltage.
5