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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)： | 4/11頁 |
| 文件大?。?/td> | 416K |
| 代理商： | FSTUD16450MTD |
www.fairchildsemi.com
4
F
Functional Description
The device can also be configured as an 8 and 16-bit device by grounding the unused pins in Configurations 2 and 1
respectively. The 8-bit configuration may also be achieved by tying two of the 4-bit enables from configuration together and
tying the remaining enable pin (OE) HIGH.
Truth Tables
(X
=
V
CC
or GND)
(see Functional Description)
Select Pin
S
2
L
H
Mode
Std. NMOS Switch
Level Shifting Diode Enabled
Configuration 1
S
0
=
S
1
=
L
20-Bit Configuration
Inputs
Inputs/Outputs
OE
1
L
H
OE
2
X
X
OE
3
X
X
OE
4
X
X
OE
5
X
X
1A
1-10
=
1B
1-10
, 2A
1-10
=
2B
1-10
Z
Configuration 2
S
0
=
L, S
1
=
H
10-Bit Configuration
Inputs/Outputs
Inputs
OE
1
L
L
H
H
OE
2
X
X
X
X
OE
3
X
X
X
X
OE
4
L
H
L
H
OE
5
X
X
X
X
1A
1-10
=
1B
1-10
1A
X
=
1B
X
1A
X
=
1B
X
Z
Z
2A
1-10
=
2B
1-10
2A
X
=
2B
X
Z
2A
X
=
2B
X
Z
Configuration 3
S
0
=
H, S
1
=
L
5-Bit Configuration
Inputs/Outputs
Inputs
OE
1
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
OE
2
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
OE
3
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
OE
4
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
OE
5
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1A
1-5
, 1B
1-5
1A
x
=
1B
x
1A
x
=
1B
x
1A
x
=
1B
x
1A
x
=
1B
x
1A
x
=
1B
x
1A
x
=
1B
x
1A
x
=
1B
x
1A
x
=
1B
x
Z
Z
Z
Z
Z
Z
Z
Z
1A
6-10
, 1B
6-10
1A
y
=
1B
y
1A
y
=
1B
y
1A
y
=
1B
y
1A
y
=
1B
y
Z
Z
Z
Z
1A
y
=
1B
y
1A
y
=
1B
y
1A
y
=
1B
y
1A
y
=
1B
y
Z
Z
Z
Z
2A
1-5
, 2B
1-5
2A
x
=
2B
x
2A
x
=
2B
x
Z
Z
2A
x
=
2B
x
2A
x
=
2B
x
Z
Z
2A
x
=
2B
x
2A
x
=
2B
x
Z
Z
2A
x
=
2B
x
2A
x
=
2B
x
Z
Z
2A
6-10
, 2B
6-10
2A
y
=
2B
y
Z
2A
y
=
2B
y
Z
2A
y
=
2B
y
Z
2A
y
=
2B
y
Z
2A
y
=
2B
y
Z
2A
y
=
2B
y
Z
2A
y
=
2B
y
Z
2A
y
=
2B
y
Z
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