FST3244MTCX Fairchild Semiconductor, FST3244MTCX Datasheet

IC SWITCH BUS 8BIT TTL 20TSSOP

FST3244MTCX

Manufacturer Part Number
FST3244MTCX
Description
IC SWITCH BUS 8BIT TTL 20TSSOP
Manufacturer
Fairchild Semiconductor
Type
Bus Switchr
Datasheet

Specifications of FST3244MTCX

Circuit
8 x 1:1
Independent Circuits
2
Voltage Supply Source
Single Supply
Voltage - Supply
4 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output High, Low
-

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© 1997 Fairchild Semiconductor Corporation
FST3244 • Rev. 1.0.3
FST3244 — 8-Bit Bus Switch
Features
Ordering Information
FST3244QSCX
The Fairchild switch family derives from and embodies Fairchild’s proven switch technology used for several years in its
74LVX3L384 (FST3384) bus switch product.
Logic Diagram
FST3244MTCX
Part Number
FST3244WMX
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
CC
Temperature
-40 to +85°C
-40 to +85°C
-40 to +85°C
Operating
Range
20-Lead, Small Outline Integrated Circuit (SOIC), JEDEC MS-013,
0.300-inch Wide
20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137,
0.150-inch Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,
4.4mm Wide
/OE
/OE
1A
1A
2A
2A
0
3
0
3
1
2
Figure 1. Logic Diagram
11
17
19
2
8
1
Description
The FST3244 switch provides eight-bits of high-speed,
CMOS, TTL-compatible bus switching in a standard
’244 pin-out. The low on resistance allows inputs to be
connected to outputs without adding propagation delay
or generating additional ground bounce noise.
The device is organized as two four-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.
Package
18
12
9
3
1B
1B
2B
2B
0
3
0
3
March 2008
www.fairchildsemi.com
Packing
Tape and
Tape and
Tape and
Method
Reel
Reel
Reel

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FST3244MTCX Summary of contents

Page 1

... FST3244WMX -40 to +85°C FST3244QSCX -40 to +85°C FST3244MTCX -40 to +85°C All packages are lead free per JEDEC: J-STD-020B standard. The Fairchild switch family derives from and embodies Fairchild’s proven switch technology used for several years in its 74LVX3L384 (FST3384) bus switch product. ...

Page 2

... Pin Configurations Pin Descriptions Pin # 1,19 2,4,6,8,11,13,15,17 3,5,7,9,12,14, 16, Truth Table Inputs /OE1 LOW LOW HIGH HIGH © 1997 Fairchild Semiconductor Corporation FST3244 • Rev. 1.0.3 / GND Figure 2. Pin Configuration Pin Names / 1A GND /OE 1A LOW HIGH LOW High Impedance HIGH ...

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. © 1997 Fairchild Semiconductor Corporation FST3244 • Rev. 1.0.3 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 © 1997 Fairchild Semiconductor Corporation FST3244 • Rev. 1.0.3 = 25°C. A Conditions -18mA IN 4.0 to 5.5 4.0 to 5.5 0 ≤ V ≤ ...

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 © 1997 Fairchild Semiconductor Corporation FST3244 • Rev. 1.0.3 = 500ns. Figure 3. AC Test Circuit Figure 4. AC Waveforms 5 www.fairchildsemi.com ...

Page 6

... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. 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’ ...

Page 7

... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. 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’ ...

Page 8

... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. 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’ ...

Page 9

... Fairchild Semiconductor Corporation FST3244 • Rev. 1.0.3 9 www.fairchildsemi.com ...

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