Datasheet

CD/74HC4051, CD54/74HCT4051, CD54/74HC4052,
SCHS122J –NOVEMBER 1997– REVISED FEBRUARY 2011 www.ti.com
Table 4. HCT INPUT LOADING TABLE
TYPE INPUT UNIT LOADS
(1)
4051, 4053 All 0.5
4052 All 0.4
(1) Unit load is ΔI
CC
limit specified in DC Specifications table, e.g., 360 mA MAX at 25°C.
Switching Specifications
V
CC
= 5 V, T
A
= 25°C, input t
r
, t
f
= 6 ns
TYPICAL
CL
PARAMETER TEST CONDITIONS 4051 4052 4053 UNIT
(pF)
HC HCT HC HCT HC HCT
t
PHL
, t
PLH
Switch IN to OUT 15 4 4 4 4 4 4
t
PHZ
, t
PLZ
Propagation delay Switch turn-off (S or E) 15 19 19 21 21 18 18 ns
t
PZH
, t
PZL
Switch turn-on (S or E) 15 19 23 27 29 18 20
Power dissipation
C
PD
(1)
50 52 74 76 38 42 pF
capacitance
(1) C
PD
is used to determine the dynamic power consumption, per package.
P
D
= C
PD
V
CC
2
f
I
+ ∑ (C
L
+ C
S
) V
CC
2
f
O
f
O
= output frequency
f
I
= input frequency
C
L
= output load capacitance
C
S
= switch capacitance
V
CC
= supply voltage
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Product Folder Link(s): CD/74HC4051, CD54/74HCT4051, CD54/74HC4052,