FSTD16861MTDX [ONSEMI]
20 位总线开关，带电平转换;
| 型号： | FSTD16861MTDX |
| 厂家： | 
ONSEMI |
| 描述： | 20 位总线开关，带电平转换 开关 驱动 光电二极管 逻辑集成电路 |
| 文件： | 总8页 (文件大小：291K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right
to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON
Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON
Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA
Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended
or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out
of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor
is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
May 2001
Revised June 2005
FSTD16861
20-Bit Bus Switch with Level Shifting
General Description
Features
The Fairchild Switch FSTD16861 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. A diode to VCC has been
■ 4 switch connection between two ports.
■ Minimal propagation delay through the switch.
■ Low lCC
.
■ Zero bounce in flow-through mode.
■ Control inputs compatible with TTL level.
integrated into the circuit to allow for level shifting between
5V inputs and 3.3V outputs.
■ TruTranslation voltage translation from 5.0V inputs to
3.3V outputs
The device is organized as a 10-bit or 20-bit bus switch.
When OE1 is LOW, the switch is ON and Port 1A is con-
■ Power-off high impedance inputs and outputs
■ Supports live insertion/withdrawal (Note 1)
Note 1: To ensure the high-impedance state during power up or power
down, OE should be tied to V
nected to Port 1B. When OE2 is LOW, Port 2A is connected
to Port 2B. When OEX is HIGH, a high impedance state
exists between the A and B Ports.
through a pull-up resistor; the minimum
CC
value of the resistor is determined by the current-sourcing capability of the
driver.
Ordering Code:
Order Number Package Number
Package Description
FSTD16861MTD
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
TruTranslation is trademark of Fairchild Semiconductor Corporation.
© 2005 Fairchild Semiconductor Corporation
DS500421
www.fairchildsemi.com
Connection Diagram
Logic Diagram
Pin Descriptions
Truth Table
Pin Name
Description
Inputs
Inputs/Outputs
OE1, OE2
1An, 2An
1Bn, 2Bn
Bus Switch Enables
Bus A
OE1
OE2
1A, 1B
2A, 2B
2A 2B
Z
L
L
L
H
L
1A 1B
Bus B
1A 1B
H
H
Z
Z
2A 2B
Z
H
H
L
Z
HIGH Voltage Level
LOW Voltage Level
High Impedance
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2
Absolute Maximum Ratings(Note 2)
Recommended Operating
Conditions (Note 5)
Supply Voltage (VCC
)
0.5V to 7.0V
0.5V to 7.0V
0.5V to 7.0V
50 mA
DC Switch Voltage (VS) (Note 3)
DC Input Voltage (VIN) (Note 4)
DC Input Diode Current (lIK) VIN 0V
Power Supply Operating (VCC)
4.5V to 5.5V
0V to 5.5V
0V to 5.5V
Input Voltage (VIN
)
Output Voltage (VOUT
)
DC Output Current (IOUT
DC VCC/GND Current (ICC/IGND
Storage Temperature Range (TSTG
)
128 mA
Input Rise and Fall Time (tr, tf)
Switch Control Input
)
100 mA
0 ns/V to 5 ns/V
0 ns/V to DC
)
65 C to 150
C
Switch I/O
Free Air Operating Temperature (TA)
-40 C to 85 C
Note 2: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum rating.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Note 3: V is the voltage observed/applied at either the A or B Ports across
S
the switch.
Note 4: The input and output negative voltage ratings may be exceeded if
the input and output diode current ratings are observed.
Note 5: Unused control inputs must be held HIGH or LOW. They may not
float.
DC Electrical Characteristics
V
T
40 C to 85 C
CC
A
Symbol
Parameter
Units
Conditions
(V)
Min
Typ
Max
(Note 6)
V
V
V
V
Clamp Diode Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level
4.5
4.5-5.5
4.5-5.5
4.5-5.5
5.5
1.2
0.8
V
V
V
V
A
A
A
I
18 mA
IK
IN
2.0
IH
IL
See Figure 3
OH
I
Input Leakage Current
1.0
10
1.0
7
0
V
5.5V
5.5V
A, B
0V, I
I
IN
0
V
0
IN
I
OFF-STATE Leakage Current
Switch On Resistance
(Note 7)
5.5
V
OZ
CC
R
4.5
4
4
V
V
V
64 mA
30 mA
ON
IN
IN
IN
IN
IN
4.5
7
0V, I
4.5
35
50
2.4V, I
OE
15 mA
IN
I
Quiescent Supply Current
OE
GND
or GND, I
CC
1
2
1.5
mA
V
V
0
0
IN
CC
OUT
5.5
5.5
OE
OE
V
CC
1
2
10
A
V
V
or GND, I
IN
CC
OUT
I
Increase in I per Input
2.5
mA
One Input at 3.4V
Other Inputs at V or GND
CC
CC
CC
Note 6: Typical values are at V
5.0V and T
25 C
CC
A
Note 7: Measured by the voltage drop between A and B pins at the indicated current through the switch. On Resistance is determined by the lower of the
voltages on the two (A or B) pins.
3
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AC Electrical Characteristics
T
40 C to 85 C,
50pF, RU RD 500
A
C
Figure
L
Symbol
Parameter
Units
Conditions
V
4.5 – 5.5V
Number
CC
Min
Max
t
, t
Propagation Delay Bus-to-Bus (Note 8)
Output Enable Time
0.25
ns
ns
V
OPEN
Figures
1, 2
PHL PLH
I
t
, t
1.0
1.0
6.0
7.0
V
V
V
V
7V for t
PZL
Figures
1, 2
PZH PZL
I
I
I
I
OPEN for t
PZH
PHZ
t
, t
Output Disable Time
ns
7V for t
Figures
1, 2
PHZ PLZ
PLZ
OPEN for t
Note 8: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On
Resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).
Capacitance (Note 9)
Symbol
Parameter
Typ
Max
Units
Conditions
5.0V, V 0V
, OE 5.0V, V 0V
C
C
Control Pin Input Capacitance
3
pF
V
V
IN
CC
CC
IN
Input/Output Capacitance “OFF State”
6
pF
I/O
IN
Note 9: T
25 C, f 1 Mhz, Capacitance is characterized but not tested.
A
AC Loading and Waveforms
Note: Input driven by 50 source terminated in 50
Note: C includes load and stray capacitance
L
Note: Input PRR 1.0 MHz, t
500 ns
W
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
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4
Output Voltage HIGH vs. Supply Voltage
FIGURE 3.
5
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Physical Dimensions inches (millimeters) unless otherwise noted
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Package Number MTD48
Technology Description
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its
74LVX3L384(FST3384) bus switch product.
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
www.fairchildsemi.com
6
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
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