74HC_HCT4051 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 7 — 19 July 2012 16 of 31
NXP Semiconductors
74HC4051; 74HCT4051
8-channel analog multiplexer/demultiplexer
[1] t
pd
is the same as t
PHL
and t
PLH
.
[2] t
on
is the same as t
PZH and
t
PZL
.
[3] t
off
is the same as t
PHZ
and t
PLZ
.
[4] C
PD
is used to determine the dynamic power dissipation (P
D
in W).
P
D
= C
PD
V
CC
2
f
i
N + {(C
L
+C
sw
) V
CC
2
f
o
} where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
N = number of inputs switching;
{(C
L
+C
sw
) V
CC
2
f
o
} = sum of outputs;
C
L
= output load capacitance in pF;
C
sw
= switch capacitance in pF;
V
CC
= supply voltage in V.
t
off
turn-off time E to V
os
; R
L
=1 k; see Figure 14
[3]
V
CC
= 2.0 V; V
EE
=0 V - - 435 ns
V
CC
= 4.5 V; V
EE
=0 V - - 87 ns
V
CC
= 6.0 V; V
EE
=0 V - - 74 ns
V
CC
= 4.5 V; V
EE
= 4.5 V - - 72 ns
Sn to V
os
; R
L
=1 k; see Figure 14
[3]
V
CC
= 2.0 V; V
EE
=0 V - - 435 ns
V
CC
= 4.5 V; V
EE
=0 V - - 87 ns
V
CC
= 6.0 V; V
EE
=0 V - - 74 ns
V
CC
= 4.5 V; V
EE
= 4.5 V - - 72 ns
Table 9. Dynamic characteristics for 74HC4051 …continued
GND = 0 V; t
r
=t
f
=6ns; C
L
= 50 pF; for test circuit see Figure 15.
V
is
is the input voltage at a Yn or Z terminal, whichever is assigned as an input.
V
os
is the output voltage at a Yn or Z terminal, whichever is assigned as an output.
Symbol Parameter Conditions Min Typ Max Unit
Table 10. Dynamic characteristics for 74HCT4051
GND = 0 V; t
r
=t
f
=6ns; C
L
= 50 pF; for test circuit see Figure 15.
V
is
is the input voltage at a Yn or Z terminal, whichever is assigned as an input.
V
os
is the output voltage at a Yn or Z terminal, whichever is assigned as an output.
Symbol Parameter Conditions Min Typ Max Unit
T
amb
=25C
t
pd
propagation delay V
is
to V
os
; R
L
= ; see Figure 13
[1]
V
CC
= 4.5 V; V
EE
=0 V - 5 12 ns
V
CC
= 4.5 V; V
EE
= 4.5 V - 4 8 ns
t
on
turn-on time E to V
os
; R
L
=1 k; see Figure 14
[2]
V
CC
= 4.5 V; V
EE
= 0 V - 26 55 ns
V
CC
= 5.0 V; V
EE
=0 V; C
L
= 15 pF - 22 - ns
V
CC
= 4.5 V; V
EE
= 4.5 V - 16 39 ns
Sn to V
os
; R
L
=1 k; see Figure 14
[2]
V
CC
= 4.5 V; V
EE
= 0 V - 28 55 ns
V
CC
= 5.0 V; V
EE
=0 V; C
L
= 15 pF - 24 - ns
V
CC
= 4.5 V; V
EE
= 4.5 V - 16 39 ns
