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參數(shù)資料
| 型號(hào)： | IDTQS3ST257Q |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 編、解碼器及復(fù)用、解復(fù)用 |
| 英文描述： | 8 LINE TO 4 LINE MULTIPLEXER AND DEMUX/DECODER, TRUE OUTPUT, PDSO20 |
| 封裝： | QSOP-20 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 118K |
| 代理商： | IDTQS3ST257Q |
1
IDTQS3ST257
HIGH-SPEED CMOS SYNCHROSWITCH QUAD 2:1 MUX
INDUSTRIALTEMPERATURERANGE
NOVEMBER 1999
1999
Integrated Device Technology, Inc.
DSC-5534/-
c
IDTQS3ST257
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH PRODUCTS
HIGH-SPEED CMOS SYNCHRO-
SWITCH QUAD 2:1 MUX/DEMUX
WITH ACTIVE TERMINATORS
DESCRIPTION:
TheQS3ST257isahigh-speedCMOSQuad2:1 multiplexer/demultiplexer
with active terminators (bus-hold circuits) on the demux side. Port selection
and connection, controlled by SEL signals, can be either asynchronous or
synchronous. In the synchronous mode, the A or B port to Y port connection
is updated on the rising edge of the input clock CLK. Once the port-to-port
connection is made, data flow can be bi-directional with a typical 250ps
propagation delay through the switch. Clock Enable, overriding Asynchro-
nous Enable, and Asynchronous Select controls provide additional design
flexibility.
The bus-hold circuits latch the last data driven on the demux side,
providing infinite hold time and glitch-free signal transitions. Synchronous
controls and bus-hold ease timing constraints in many high speed data mux/
demux applications, such as bank interleaving.
QuickSwitch Mux/Demux devices provide an order of magnitude faster
speed than equivalent logic devices.
The QS3ST257 is characterized for operation at -40°C to +85°C.
SEL
CLK
CLKEN
OE
SYNC
Y0
Y1
Y2
Y3
A0
B0
A1
A2
A3
B1
B2
B3
T
=
R
CONTRO L
LO GIC
FUNCTIONAL BLOCK DIAGRAM
FEATURES:
Enhanced N channel FET with no inherent diode to Vcc
Bidirectional signal flow
Flow-through pinout
Zero propagation delay, zero ground bounce
4 banks of 2:1 Mux/Demux
Port select synchronous to the clock
Clock enable and Asynchronous switch enable
“Bus-hold” terminators on the Demux side
Undershoot clamp diodes on all switch and control pins
Asynchronous SEL option
Break-before-make feature
Available in 20-pin QSOP Package
Bus-hold eliminates floating bus lines and reduces static power
consumption
APPLICATIONS:
Video, audio, graphics switching, muxing
Bus funneling
Voltage translation
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IDTQS3V245Q | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:QUICKSWITCH PRODUCTS 3.3V HIGH SPEED BUS SWITCH |
| IDTQS3V245SO | 制造商:Integrated Device Technology Inc 功能描述: |
| IDTQS3VH125 | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:QUICKSWITCH PRODUCTS 2.5V / 3.3V QUAD ACTIVE LOW, HIGH BANDWIDTH BUS SWITCH |
| IDTQS3VH125_13 | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:QUICKSWITCH PRODUCTS 2.5V / 3.3V QUAD ACTIVE LOW, HIGH BANDWIDTH BUS SWITCH |
| IDTQS3VH125PA | 制造商: 功能描述: 制造商:undefined 功能描述: |
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