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74HCT4852BQ Datasheet(数据表) 11 Page - NXP Semiconductors

部件型号  74HCT4852BQ
说明  Dual 4-channel analog multiplexer/demultiplexer with injection-current effect control
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
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 11 page
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74HC_HCT4852_3
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 2 September 2008
11 of 20
NXP Semiconductors
74HC4852; 74HCT4852
4-channel analog MUX/DEMUX with injection-current effect control
[1]
tpd is the same as tPLH and tPHL.
[2]
ten is the same as tPZH and tPZL.
[3]
tdis is the same as tPLZ and tPHZ.
[4]
CPD is used to determine the dynamic power dissipation (PD in µW):
PD =CPD × VCC2 × fi + ∑{(CL +Csw) × VCC2 × fo} where:
fi = input frequency in MHz;
fo = output frequency in MHz;
∑{(C
L +Csw) × VCC
2
× f
o} = sum of outputs;
CL = output load capacitance in pF;
Csw = switch capacitance in pF;
VCC = supply voltage in V.
12. Waveforms
74HCT4852
tpd
propagation delay
nZ, nYn to nYn, nZ;
see Figure 10
[1]
VCC = 4.5 V
1.6
3.5
11.5
1.1
12.5
1.1
13.5
ns
Sn to nZ, nYn;
see Figure 11
[1]
VCC = 4.5 V
3.2
7.6
13
2.3
15
1.6
17
ns
ten
enable time
E to nZ, nYn;
see Figure 12
[2]
VCC = 4.5 V
4.2
8.3
25
3.0
30
3.0
35
ns
tdis
disable time
E to nZ, nYn;
see Figure 12
[3]
VCC = 4.5 V
28.5
61.8
80
28.2
90
28.0
100
ns
CPD
power dissipation
capacitance
per channel;
see Figure 13
[4]
VCC = 5.0 V
-
47
-
-
-
-
-
pF
Table 9.
Dynamic characteristics …continued
At recommended operating conditions; voltages are referenced to GND (ground 0 V); for load circuit see Figure 14.
Symbol
Parameter
Conditions
25
°C
−40 °C to +85 °C −40 °C to +125 °C Unit
Min
Typ
Max
Min
Max
Min
Max
Fig 10. Input (nZ, nYn) to output (nYn, nZ) propagation delays
001aah578
VCC
nZ or nYn
input
nYn or nZ
output
tPLH
0.5VCC
0.5VCC
tPHL
GND
VCC
GND




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