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參數(shù)資料
| 型號： | FSTUD16450MTD |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Configurable 4-Bit to 20-Bit Bus Switch with -2V Undershoot Protection and Selectable Level Shifting |
| 中文描述： | CBT/FST/QS/5C/B SERIES, DUAL 10-BIT DRIVER, TRUE OUTPUT, PDSO56 |
| 封裝： | 6.10 MM, MO-153, TSSOP-56 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 416K |
| 代理商： | FSTUD16450MTD |
2001 Fairchild Semiconductor Corporation
DS500391
www.fairchildsemi.com
January 2001
Revised August 2001
F
S
FSTUD16450
Configurable 4-Bit to 20-Bit Bus Switch with
-2V Undershoot Protection and Selectable Level Shifting
General Description
The Fairchild Universal Bus Switch FSTUD16450 provides
4-bit, 5-bit, 8-bit, 10-bit, 16-bit, 20-bit 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 FSTUD16450 is designed to allow “customer” configu-
ration control of the enable connections. The device is
organized as either a 4-bit, 5-bit, 10-bit or 20-bit bus switch.
8-bit and 16-bit configurations are also achievable (see
Functional Description). The device's bit configuration is
chosen through select pin logic. (see Truth Table). When
OE
x
is LOW, Port A
x
is connected to Port B
x
. When OE
x
is
HIGH, the switch is OPEN.
The A and B Ports are “undershoot hardened” with UHC
protection to support an extended range to 2.0V below
ground. Fairchild's integrated “Undershoot Hardened
Circuit” (UHC) senses undershoot at the I/O's, and
responds by preventing voltage differentials from develop-
ing and turning on the switch.
Another key device feature is the addition of a level shifting
select pin, “S
2
”. When S
2
is LOW, the device behaves as a
standard N-MOS switch. When S
2
is HIGH, a diode to V
CC
is integrated into the circuit allowing for level shifting
between 5V inputs and 3.3V outputs.
Features
I
Undershoot hardened to
2V (A and B Ports)
I
Voltage level shifting
I
4
switch connection between two ports
I
Minimal propagation delay through the switch
I
Low l
CC
I
Zero bounce in flow-through mode
I
Control inputs compatible with TTL level
I
See Applications Note AN-5008 for details
I
Also packaged in plastic Fine-Pitch Ball Grid Array
(FBGA) (Preliminary)
Applications Note
Select pins S
0
, S
1
, S
2
are intended to be used as static
user configurable control pins. The AC performance of
these pins has not been characterized or tested. Switching
of these select pins during system operation may tempo-
rarily disrupt output logic states and/or enable pin controls.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter
“
X
”
to the ordering code.
Note 1:
BGA package available in Tape and Reel only.
UHC
is a trademark of Fairchild Semiconductor Corporation.
Order Number
FSTUD16450GX
(Note 1)
FSTUD16450MTD
Package Number
BGA54A
(Preliminary)
MTD56
Package Description
54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
[Tape and Reel]
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
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| FSTUD16450MTD_Q | 功能描述:數(shù)字總線開關 IC Bus Switch 4to2Bit Config 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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| FSTUD32211 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:40/48-Bit Bus Switch with -2V Undershoot Protection and Level Shifting (Preliminary) |
| FSTUD32211GX | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:40/48-Bit Bus Switch with -2V Undershoot Protection and Level Shifting (Preliminary) |
| FSTUD32450 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Configurable 4-Bit to 40-Bit Bus Switch with -2V Undershoot Protection and Selectable Level Shifting |
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