參數(shù)資料
型號： 74HCT4351
廠商： NXP Semiconductors N.V.
英文描述： 8-channel analog multiplexer/demultiplexer with latch(帶鎖存的8通道模擬多路復(fù)用器/多路分解器)
中文描述： 8通道模擬多路復(fù)用器/分離器的鎖存器（帶鎖存的8通道模擬多路復(fù)用器/多路分解器）
文件頁數(shù)： 2/17頁
文件大?。?/td> 135K
代理商： 74HCT4351
December 1990
2
Philips Semiconductors
Product specification
8-channel analog
multiplexer/demultiplexer with latch
74HC/HCT4351
FEATURES
Wide analog input voltage range:
±
5 V
Low “ON” resistance:
80
(typ.) at V
CC
V
EE
= 4.5 V
70
(typ.) at V
CC
V
EE
= 6.0 V
60
(typ.) at V
CC
V
EE
= 9.0 V
Logic level translation: to enable 5 V logic to
communicate with
±
5 V analog signals
Typical “break before make” built in
Address latches provided
Output capability: non-standard
I
CC
category: MSI
GENERAL DESCRIPTION
The 74HC/HCT4351 are high-speed Si-gate CMOS
devices. They are specified in compliance with JEDEC
standard no. 7A.
The 74HC/HCT4351 are 8-channel analog
multiplexers/demultiplexers with three select inputs (S
0
to
S
2
), two enable inputs (E
1
and E
2
), a latch enable input
(LE), eight independent inputs/outputs (Y
0
to Y
7
) and a
common input/output (Z).
With E
1
LOW and E
2
is HIGH, one of the eight switches is
selected (low impedance ON-state) by S
0
to S
2
. The data
at the select inputs may be latched by using the active
LOW latch enable input (LE). When LE is HIGH the latch
is transparent. When either of the two enable inputs,
E
1
(active LOW) and E
2
(active HIGH), is inactive, all 8
analog switches are turned off.
V
CC
and GND are the supply voltage pins for the digital
control inputs (S
0
to S
2
, LE, E
1
and E
2
). The V
CC
to GND
ranges are 2.0 to 10.0 V for HC and 4.5 to 5.5 V for HCT.
The analog inputs/outputs (Y
0
to Y
7
, and Z) can swing
between V
CC
as a positive limit and V
EE
as a negative
limit.
V
CC
V
EE
may not exceed 10.0 V.
For operation as a digital multiplexer/demultiplexer, V
EE
is
connected to GND (typically ground).
QUICK REFERENCE DATA
V
EE
= GND = 0 V; T
amb
= 25
°
C; t
r
= t
f
= 6 ns
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
HC
HCT
t
PZH
/ t
PZL
t
PHZ
/ t
PLZ
C
I
C
PD
C
S
turn “ON” time E
1
, E
2
or S
n
to V
os
turn “OFF” time E
1
, E
2
or S
n
to V
os
input capacitance
power dissipation capacitance per switch
max. switch capacitance
independent (Y)
common (Z)
C
L
= 15 pF; R
L
= 1 k
; V
CC
= 5 V
27
21
3.5
25
35
23
3.5
25
ns
ns
pF
pF
notes 1 and 2
5
25
5
25
pF
pF
Notes
1.
C
PD
is used to determine the dynamic power
dissipation (P
D
in
μ
W):
P
D
= C
PD
×
V
CC2
×
f
i
+
∑
{(C
L
+ C
S)
×
V
CC2
×
f
o
}
where:
f
i
= input frequency in MHz
f
o
= output frequency in MHz
C
L
= output load capacitance in pF
C
S
= max. switch capacitance in pF
∑
{(C
L
+ C
S)
×
V
CC2
×
f
o
} = sum of outputs
V
CC
= supply voltage in V
2.
For HC the condition is V
I
= GND to V
CC
For HCT the condition is V
I
= GND to V
CC
1.5 V
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package
Information”
.
相關(guān)PDF資料
PDF描述
74HC4351 8-channel analog multiplexer/demultiplexer with latch
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74HC4352 Dual 4-channel analog multiplexer/demultiplexer with latch
74HCT4353 Triple 2-channel analog multiplexer/demultiplexer with latch(帶鎖存的三端2通道模擬多路復(fù)用器/多路分解器)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74HCT4351D 功能描述:多路器開關(guān) IC 8-CH ANALOG MUX/DMUX LATCHED RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
74HCT4351D,112 功能描述:多路器開關(guān) IC 8-CH ANALOG MUX/DMUX RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
74HCT4351D,118 功能描述:多路器開關(guān) IC 8-CH ANALOG MUX/DMUX RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
74HCT4351D/C，118 制造商:NXP Semiconductors 功能描述:PHA74HCT4351D/C,118 R07
74HCT4351DB 功能描述:多路器開關(guān) IC 8-CH ANALOG MUX/DMUX LATCHED RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
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