參數(shù)資料
型號(hào)： 74LCX257
廠商： 意法半導(dǎo)體
英文描述： LOW VOLTAGE CMOS QUAD 2 CHANNEL MULTIPLEXER WITH 5V TOLERANT INPUTS AND OUTPUTS (3-STATE)
中文描述： 低電壓CMOS四路2通道5V容限輸入和輸出復(fù)用器（3態(tài)）
文件頁(yè)數(shù)： 4/9頁(yè)
文件大?。?/td> 100K
代理商： 74LCX257
www.fairchildsemi.com
4
7
DC Electrical Characteristics
(Continued)
Note 5:
Outputs disabled or 3-STATE only.
AC Electrical Characteristics
Note 6:
Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The
specification applies to any outputs switching in the same direction, either HIGH-to-LOW (t
OSHL
) or LOW-to-HIGH (t
OSLH
).
Dynamic Switching Characteristics
Capacitance
Symbol
Parameter
Conditions
V
CC
(V)
T
A
=
40
°
C to
+
85
°
C
Min
Units
Max
10
±
10
500
I
CC
Quiescent Supply Current
V
I
=
V
CC
or GND
3.6V
≤
V
I
, V
O
≤
5.5V (Note 5)
V
IH
=
V
CC
0.6V
2.3
3.6
2.3
3.6
2.3
3.6
μ
A
I
CC
Increase in I
CC
per Input
μ
A
Symbol
Parameter
T
A
=
40
°
C to
+
85
°
C, R
L
=
500
V
CC
=
2.7V
C
L
=
50 pF
Min
1.5
1.5
Units
V
CC
=
3.3V
±
0.3V
C
L
=
50 pF
Min
1.5
1.5
V
CC
=
2.5V
±
0.2V
C
L
=
30 pF
Min
1.5
1.5
Max
7.0
7.0
Max
8.5
8.5
Max
9.1
9.1
t
PHL
t
PLH
t
PHL
t
PLH
t
PZL
t
PZH
t
PLZ
t
PHZ
t
OSHL
t
OSLH
Propagation Delay
S
→
Z
n
Propagation Delay
I
n
→
Z
n
Output Enable Time
OE
→
Z
n
Output Disable Time
OE
→
Z
n
Output to Output Skew (Note 6)
ns
1.5
1.5
1.5
6.0
6.0
7.0
1.5
1.5
1.5
6.5
6.5
8.5
1.5
1.5
1.5
7.2
7.2
9.1
ns
ns
1.5
1.5
1.5
7.0
5.5
5.5
1.5
1.5
1.5
8.5
6.0
6.0
1.5
1.5
1.5
9.1
6.6
6.6
ns
1.0
1.0
ns
Symbol
Parameter
Conditions
V
CC
(V)
3.3
T
A
=
25
°
C
Typical
0.8
Units
V
OLP
Quiet Output Dynamic Peak V
OL
C
L
=
50 pF, V
IH
=
3.3V, V
IL
=
0V
C
L
=
30 pF, V
IH
=
2.5V, V
IL
=
0V
C
L
=
50 pF, V
IH
=
3.3V, V
IL
=
0V
C
L
=
30 pF, V
IH
=
2.5V, V
IL
=
0V
V
2.5
3.3
2.5
0.6
0.8
0.6
V
OLV
Quiet Output Dynamic Valley V
OL
V
Symbol
C
IN
C
OUT
C
PD
Parameter
Conditions
Typical
7
8
Units
pF
pF
Input Capacitance
Output Capacitance
V
CC
=
Open, V
I
=
0V or V
CC
V
CC
=
3.3V, V
I
=
0V or V
CC
V
CC
=
3.3V, V
I
=
0V or V
CC
, f
=
10 MHz
Power Dissipation Capacitance
25
pF
相關(guān)PDF資料
PDF描述
74LCX257MTR LOW VOLTAGE CMOS QUAD 2 CHANNEL MULTIPLEXER WITH 5V TOLERANT INPUTS AND OUTPUTS (3-STATE)
74LCX257TTR LOW VOLTAGE CMOS QUAD 2 CHANNEL MULTIPLEXER WITH 5V TOLERANT INPUTS AND OUTPUTS (3-STATE)
74LCX257M Low Voltage Quad 2-Input Multiplexer with 5V Tolerant Inputs and Outputs
74LCX257MTC Low Voltage Quad 2-Input Multiplexer with 5V Tolerant Inputs and Outputs
74LCX257 Low Voltage Quad 2-Input Multiplexer with 5V Tolerant Inputs and Outputs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74LCX257M 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Qd 2-Inp Multiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
74LCX257M 制造商:Fairchild Semiconductor Corporation 功能描述:IC DECODERS/ENCODERS/MULTIPLEXERS/DEMUL
74LCX257M 制造商:Fairchild Semiconductor Corporation 功能描述:74LCX CMOS SMD 74LCX257 SOIC16
74LCX257M_Q 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Qd 2-Inp Multiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
74LCX257MTC 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Qd 2-Inp Multiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
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