FSTD3125 Fairchild Semiconductor, FSTD3125 Datasheet

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FSTD3125

Manufacturer Part Number
FSTD3125
Description
4-Bit Bus Switch with Level Shifting
Manufacturer
Fairchild Semiconductor
Datasheet
© 2001 Fairchild Semiconductor Corporation
FSTD3125 • Rev. 1.0.2
FSTD3125 — 4-Bit Bus Switch with Level Shifting
Features
Ordering Information
FSTD3125MTC
FSTD3125MTCX
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.
Part Number
All packages are lead free per JEDEC: J-STD-020B standard.
4Ω Switch Connection between Two Ports
Minimal Propagation Delay through the Switch
Low I
Zero Bounce in Flow-through Mode
Control Inputs Compatible with TTL Level
TruTranslation Voltage Translation from 5.0V
Inputs to 3.3V Outputs
CC
Temperature
Operating
-40 to 85°C
-40 to 85°C
Range
14-Lead, Thin Shrink Small Outline Package (TSSOP) JEDEC
MO-153, 4mm Wide
14-Lead, Thin Shrink Small Outline Package (TSSOP), JEDEC
MO-153, 4mm Wide
/OE
/OE
/OE
/OE
1A
2A
3A
4A
Figure 1. Logic Diagram
1
2
3
4
10
13
12
1
2
4
5
9
Description
Fairchild switch FSTD3125 provides four 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 or
generating additional ground bounce noise. A diode to
V
shifting between 5V inputs and 3.3V outputs.
The device is organized as four one-bit switches with
separate /OE inputs. 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.
CC
Package
has been integrated into the circuit to allow for level
11
3
6
8
1B
2B
3B
4B
Tape and Reel
March 2008
www.fairchildsemi.com
Packing
Method
Tube

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FSTD3125 Summary of contents

Page 1

... FSTD3125 — 4-Bit Bus Switch with Level Shifting Features 4Ω Switch Connection between Two Ports Minimal Propagation Delay through the Switch Low I CC Zero Bounce in Flow-through Mode Control Inputs Compatible with TTL Level TruTranslation Voltage Translation from 5.0V Inputs to 3.3V Outputs Ordering Information ...

Page 2

... Pin Configuration Pin Descriptions Pin # 1,4,10,13 2,5,9,12 3,6,8, Truth Table Inputs /OE LOW HIGH © 2001 Fairchild Semiconductor Corporation FST3D125 • Rev. 1.0 GND 7 8 Figure 2. TSSOP Pin Assignments Pin Names /OE , /OE , / 1A, 2A, 3A, 4A ...

Page 3

... OUT Input Rise and Fall Time Operating Temperature, Free Air A Note: 2. Unused control inputs must be held HIGH or LOW. They may not float. © 2001 Fairchild Semiconductor Corporation FST3D125 • Rev. 1.0.2 Parameter (1) <0V IN Parameter (2) Switch Control Input Switch I/O 3 Min. Max. ...

Page 4

... Capacitance T = +25° 1MHz. Capacitance is characterized, but not tested. A Symbol Parameter C Control Pin Input Capacitance IN C Input/Output Capacitance I/O © 2001 Fairchild Semiconductor Corporation FST3D125 • Rev. 1.0.2 = 25°C. A Conditions -18mA IN 4.5 to 5.5 Figure 5, Figure 6, and 4.0 to 5.5 Figure 7 4.5 to 5.5 0 ≤ ...

Page 5

... AC Loadings and Waveforms Notes: Input driven by 50Ω source terminated in 50Ω. C includes load and stray capacitance. L Input PRR = 1.0MHz © 2001 Fairchild Semiconductor Corporation FSTD3125 • Rev. 1.0.2 = 500ns. Figure 3. AC Test Circuit Figure 4. AC Waveforms 5 www.fairchildsemi.com ...

Page 6

... Performance Characteristics Figure 5. Output Voltage vs. Supply Voltage, V Figure 6. Output Voltage vs. Supply Voltage, V Figure 7. Output Voltage vs. Supply Voltage, V © 2001 Fairchild Semiconductor Corporation FSTD3125 • Rev. 1.0 85° 25° 0° www.fairchildsemi.com ...

Page 7

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ © 2001 Fairchild Semiconductor Corporation FSTD3125 • Rev. 1.0.2 0.65 1.65 0.45 R0.09 min 1 ...

Page 8

... Fairchild Semiconductor Corporation FSTD3125 • Rev. 1.0.2 8 www.fairchildsemi.com ...

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