參數(shù)資料
型號： FST3384A
文件頁數(shù)： 163/178頁
文件大小： 3973K
代理商： FST3384A
1999 Fairchild Semiconductor Corporation
DS500195
www.fairchildsemi.com
May 1999
Revised December 1999
F
FSTU3384
10-Bit Bus Switch with
2V Undershoot Hardened Circuit (UHC
) Protection
General Description
The Fairchild Switch FSTU3384 provides 10 bits of high-
speed CMOS TTL-compatible bus switches. The low on
resistance of the switch allows inputs to be connected to
outputs without adding propagation delay generating addi-
tional ground bounce noise. Both the A Ports and the B
Ports are “undershoot hardened” with UHC
protection to
support an extended input range to 2.0V below ground.
Fairchild’s integrated Undershoot Hardened Circuit, UHC
senses undershoot at the I/Os, and responds by preventing
voltage differentials from developing and turning on the
switch. The device is organized as two 5-bit switches with
separate bus enable (OE) signals. When OE is LOW, the
switch is ON and Port A is connected to Port B. When OE
is HIGH, the switch is OPEN and a high-impedance state
exists between the two ports.
Features
I
4
switch connection between two ports
I
Undershoot Hardened to -2.0V.
I
Minimal propagation delay through the switch
I
Low l
CC
.
I
Zero ground bounce in flow-through mode
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.
Logic Diagram
Pin Descriptions
Connection Diagram
Truth Table
UHC
is a trademark of Fairchild Semiconductor Corporation.
Order Number
FSTU3384WM
FSTU3384QSC
FSTU3384MTC
Package Number
M24B
MQA24
MTC24
Package Description
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MO-153 4.4mm Wide
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150” Wide
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pin Names
Description
OEA, OEB
A
0
–A
9
B
0
–B
9
Bus Switch Enable
Bus A
Bus B
OEA OEB
L
L
H
H
B
0
–B
4
B
5
–B
9
Function
Connect
Connect
Connect
Disconnect
L
H
L
H
A
0
–A
4
A
0
–A
4
HIGH-Z State
HIGH-Z State
A
5
–A
9
HIGH-Z State
A
5
–A
9
HIGH-Z State
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相關代理商/技術參數(shù)
參數(shù)描述
FST3384AWM 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Bus Switch
FST3384MTC 功能描述:數(shù)字總線開關 IC 10-Bit Bus Switch RoHS:否 制造商:Texas Instruments 開關數(shù)量:24 傳播延遲時間: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
FST3384MTCX 功能描述:數(shù)字總線開關 IC 10-Bit Bus Switch RoHS:否 制造商:Texas Instruments 開關數(shù)量:24 傳播延遲時間: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
FST3384QSC 功能描述:數(shù)字總線開關 IC 10-Bit Bus Switch RoHS:否 制造商:Texas Instruments 開關數(shù)量:24 傳播延遲時間: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
FST3384QSCX 功能描述:數(shù)字總線開關 IC 10-Bit Bus Switch RoHS:否 制造商:Texas Instruments 開關數(shù)量:24 傳播延遲時間: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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