参数资料
型号: FST3253QSC
厂商: Fairchild Semiconductor
文件页数: 1/5页
文件大小: 0K
描述: MUX/DEMUX DUAL 4:1 TTL 16QSOP
产品变化通告: Mold Compound Change 12/Sept/2008
标准包装: 4,700
类型: 多路复用器/多路分解器
电路: 2 x 4:1
独立电路: 1
电压电源: 单电源
电源电压: 4 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
供应商设备封装: 16-QSOP
包装: 管件
1999 Fairchild Semiconductor Corporation
DS500058
www.fairchildsemi.com
September 1997
Revised December 1999
FST3
253
Dual
4:1
Mult
ipl
exer/
D
emult
ipl
exer
Bus
Sw
it
c
h
FST3253
Dual 4:1 Multiplexer/Demultiplexer Bus Switch
General Description
The Fairchild Switch FST3253 is a dual 4:1 high-speed
CMOS
TTL-compatible
multiplexer/demultiplexer
bus
switch. The low on resistance of the switch allows inputs to
be connected to outputs without adding propagation delay
or generating additional ground bounce noise.
When OE is LOW, S0 and S1 connect the A Port to the
selected B Port output. When OE is HIGH, the switch is
OPEN and a high-impedance state exists between the two
ports.
Features
s 4
switch connection between two ports.
s Minimal propagation delay through the switch.
s Low lCC.
s Zero bounce in flow-through mode.
s Control inputs compatible with TTL level.
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Diagram
Pin Descriptions
Connection Diagram
Truth Table
Order Number
Package Number
Package Description
FST3253M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
FST3253QSC
MQA16
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide
FST3253MTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pin Name
Description
OE1, OE2
Bus Switch Enables
S0, S1
Select Inputs
ABus A
B1, B2, B3, B4
Bus B
S1
S0
OE1
OE2
Function
X
H
X
Disconnect 1A
X
H
Disconnect 2A
L
LLL
A
= B
1
LH
L
A
= B
2
H
LLL
A
= B
3
HH
L
A
= B
4
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