FST3245MTCX Fairchild Semiconductor, FST3245MTCX Datasheet

IC SWITCH BUS 8BIT TTL 20TSSOP

FST3245MTCX

Manufacturer Part Number
FST3245MTCX
Description
IC SWITCH BUS 8BIT TTL 20TSSOP
Manufacturer
Fairchild Semiconductor
Type
Bus Switchr
Datasheet

Specifications of FST3245MTCX

Circuit
1 x 8:1
Independent Circuits
1
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
Number Of Switches
Single
Propagation Delay Time
0.25 ns at 4 V to 5.5 V
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Logic Family
FST
Mounting Style
SMD/SMT
On Resistance (max)
11 Ohms
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output High, Low
-
Lead Free Status / Rohs Status
 Details

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©1997 Fairchild Semiconductor Corporation
FST3245 • Rev. 1.0.2
FST3245 — 8-Bit Bus Switch
Features
Ordering Information
FST3245QSCX
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
FST3245MTCX
Part Number
FST3245WMX
FST3245QSC
FST3245MTC
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
-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 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
20-Lead Thin Shrink Small Outline Package (TSSOP),
JEDEC MO-153, 4.4mm Wide
/OE
A
A
7
0
19
2
9
Figure 1. Logic Diagram
Description
The FST3245 switch provides eight-bits of high-speed
CMOS TTL-compatible bus switching in a standard ’245
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 an eight-bit switch. 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
11
B
B
0
7
Tape and Reel
Tape and Reel
Tape and Reel
March 2008
www.fairchildsemi.com
Packing
Method
Tube
Tube

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FST3245MTCX Summary of contents

Page 1

... FST3245QSCX -40 to +85°C FST3245MTC FST3245MTCX -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 Configuration Pin Descriptions Pin # 1 19 2,3,4,5,6,7,8,9 10 11,12,13,14,15,16,17,18 20 Truth Table Input /OE LOW HIGH © 1997 Fairchild Semiconductor Corporation FST3245 • Rev. 1.0 / GND Figure 2. Pin Configuration Pin Names NC / GND Description No Connnect Bus Switch Enable Bus A Ground Bus B Supply Voltage Function Connect Disconnect www ...

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 FST3245 • Rev. 1.0.2 Parameter (1) < 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 FST3245 • Rev. 1.0.2 = 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 FST3245 • Rev. 1.0.2 = 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 FST3245 • Rev. 1.0.2 9 www.fairchildsemi.com ...

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