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參數(shù)資料
| 型號(hào)： | FSTU32X800 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 20-Bit Bus Switch with Precharged Outputs and -2V Undershoot Protection |
| 中文描述： | 20位總線開(kāi)關(guān)預(yù)充電輸出和- 2V的下沖保護(hù) |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 192K |
| 代理商： | FSTU32X800 |
2002 Fairchild Semiconductor Corporation
DS500791
www.fairchildsemi.com
November 2002
Revised November 2002
F
FSTU32X800
20-Bit Bus Switch with Precharged Outputs
and
2V Undershoot Protection
General Description
The Fairchild Switch FSTU32X800 provides 20-bits of
high-speed CMOS TTL-compatible bus switching. The low
On Resistance of the switch allows inputs to be connected
to outputs without adding propagation delay or generating
additional ground bounce noise. The A and B Ports are
protected against undershoot to support an extended
range to 2.0V below ground. Fairchild’s integrated Under-
shoot Hardened Circuit (UHC
) senses undershoot at the
I/O and responds by preventing voltage differentials from
developing and turning the switch on. The device also pre-
charges the B Port to a selectable bias voltage (BiasV) to
minimize live insertion noise.
The device is organized as two 10-bit switches with a bus
enable (OE
n
) signal. When OE
n
is LOW, the switch is ON
and Port A is connected to Port B. When OE
n
is HIGH, the
switch is OPEN and the B Port is precharged to BiasV
through an equivalent 10-k
resistor.
Features
I
4
switch connection between two ports
I
Undershoot Hardened to -2.0V
I
Soft enable turn-on to minimize bus-to-bus charge
sharing during enable
I
Low l
CC
I
Zero bounce in flow-through mode
I
Output precharge to minimize live insertion noise
I
Control inputs compatible with TTL level
I
See Applications Note AN-5008 for details
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter
“
X
”
to the ordering code.
UHC
is a trademark of Fairchild Semiconductor Corporation.
Order Number
Package
Number
MQA48A
Package Description
FSTU32X800QSP
48-Lead Quarter Size Very Small Outline Package (QVSOP), JEDEC MO-154, 0.150" Wide
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| FSTU32X800QSP | 功能描述:數(shù)字總線開(kāi)關(guān) IC 20-Bit Bus Switch RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:24 傳播延遲時(shí)間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
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| FSTU3384_06 | 制造商:FAIRCHILD 制造商全稱(chēng):Fairchild Semiconductor 功能描述:10-Bit Bus Switch with −2V Undershoot Protection |
| FSTU3384_YAC3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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