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參數資料
| 型號： | FST3257 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Quad 2:1 Multiplexer/Demultiplexer Bus Switch(四組4：1多路復用器/多路分解器總線開關) |
| 中文描述： | 四2:1多路復用器/多路解復用器總線開關（四組4:1多路復用器/多路分解器總線開關） |
| 文件頁數： | 3/5頁 |
| 文件大?。?/td> | 96K |
| 代理商： | FST3257 |
3
www.fairchildsemi.com
F
AC Electrical Characteristics
Note 6:
This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).
Capacitance
(Note 7)
Note 7:
T
A
=
+
25
°
C, f
=
1 MHz, Capacitance is characterized but not tested.
AC Loading and Waveforms
Note:
Input driven by 50
source terminated in 50
Note:
C
L
includes load and stray capacitance
Note:
Input PRR
=
1.0 MHz, t
W
=
500 ns
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
Symbol
Parameter
T
A
=
40
°
C to
+
85
°
C,
C
L
=
50 pF, RU
=
RD
=
500
V
CC
=
4.5 – 5.5V
Min
Max
0.25
1.0
4.7
1.0
5.2
Units
Conditions
Figure No.
V
CC
=
4.0V
Min
Max
0.25
5.2
5.7
t
PHL
,t
PLH
Prop Delay Bus to Bus (Note 6)
Prop Delay, Select to Bus A
t
PZH
, t
PZL
Output Enable Time, Select to Bus B
ns
V
I
=
OPEN
Figure 1
Figure 2
ns
V
I
=
7V for t
PZL
V
I
=
OPEN for t
PZH
V
I
=
7V for t
PLZ
V
I
=
OPEN for t
PHZ
Figure 1
Figure 2
Output Enable Time, OE to Bus A, B
1.0
5.1
5.6
t
PHZ
, t
PLZ
Output Disable Time, Select to Bus B
Output Disable Time, Output Enable Time,
1.0
5.2
5.5
ns
Figure 1
Figure 2
1.5
5.5
5.5
OE to Bus A, B
Symbol
Parameter
Typ
Max
Units
Conditions
C
IN
C
I/O
Control Pin Input Capacitance
3
pF
V
CC
=
5.0V
A Port Input/Output Capacitance
B Port
7
5
pF
pF
V
CC
, OE
=
5.0V
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|---|---|
| FST3257M | Quad 2:1 Multiplexer/Demultiplexer Bus Switch |
| FST3257MTC | Quad 2:1 Multiplexer/Demultiplexer Bus Switch |
| FST3257MTCX | Quad 2:1 Multiplexer/Demultiplexer Bus Switch |
| FST3257MX | Quad 2:1 Multiplexer/Demultiplexer Bus Switch |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FST3257M | 功能描述:編碼器、解碼器、復用器和解復用器 Multi/Demulti Bus Sw RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| FST3257M | 制造商:Fairchild Semiconductor Corporation 功能描述:IC FST SMD 3257 SOIC16 5.5V |
| FST3257MTC | 功能描述:編碼器、解碼器、復用器和解復用器 Multi/Demulti Bus Sw RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| FST3257MTCX | 功能描述:編碼器、解碼器、復用器和解復用器 Multi/Demulti Bus Sw RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| FST3257MTCX_NL | 功能描述:編碼器、解碼器、復用器和解復用器 Multi/Demulti Bus Sw RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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