參數(shù)資料
型號(hào): 74HC4051
廠商: NXP Semiconductors N.V.
英文描述: 8-channel analog multiplexer/demultiplexer
中文描述: 8通道模擬多路復(fù)用器/解復(fù)用器
文件頁(yè)數(shù): 15/16頁(yè)
文件大?。?/td> 126K
代理商: 74HC4051
December 1990
15
Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer
74HC/HCT4051
TEST CIRCUIT AND WAVEFORMS
Fig.19 Test circuit for measuring AC performance.
Conditions
TEST
SWITCH
V
is
t
PZH
t
PZL
t
PHZ
t
PLZ
others
V
EE
V
CC
V
EE
V
CC
open
V
CC
V
EE
V
CC
V
EE
pulse
FAMILY
AMPLITUDE
V
M
t
r
; t
f
f
max
;
PULSE WIDTH
<
2 ns
<
2 ns
OTHER
74HC
74HCT
V
CC
3.0 V
50%
1.3 V
6 ns
6 ns
C
L
= load capacitance including jig and probe capacitance (see AC CHARACTERISTICS for values).
R
T
= termination resistance should be equal to the output impedance Z
O
of the pulse generator.
t
r
= t
f
= 6 ns; when measuring f
max
, there is no constraint to t
r
, t
f
with 50% duty factor.
Fig.20 Input pulse definitions.
Conditions
TEST
SWITCH
V
is
t
PZH
t
PZL
t
PHZ
t
PLZ
others
V
EE
V
CC
V
EE
V
CC
open
V
CC
V
EE
V
CC
V
EE
pulse
FAMILY
AMPLITUDE
V
M
t
r
; t
f
f
max
;
PULSE WIDTH
<
2 ns
<
2 ns
OTHER
74HC
74HCT
V
CC
3.0 V
50%
1.3 V
6 ns
6 ns
C
L
= load capacitance including jig and probe capacitance (see AC CHARACTERISTICS for values).
R
T
= termination resistance should be equal to the output impedance Z
O
of the pulse generator.
t
r
= t
f
= 6 ns; when measuring f
max
, there is no constraint to t
r
, t
f
with 50% duty factor.
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