FST16245MTD

FST16245MTD Datasheet

FST16245 16-Bit Bus Switch

Part	Datasheet
FST16245MTD	FST16245MTD (pdf)

Related Parts	Information
FST16245MTDX	FST16245MTDX

PDF Datasheet Preview
FST16245 16-Bit Bus Switch FST16245 16-Bit Bus Switch The Fairchild Switch FST16245 provides 16-bits of highspeed 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. The device is organized as a 16-bit switch. There are two 8-bit switches with separate output enable inputs. When OE is LOW, the switch is ON and Port a is connected to Port B. When OE is HIGH, the switch is OFF and a high impedance state exists between the A and B Ports. s 4 switch connection between two ports. s Minimal propagation delay through the switch. s Low lCC. s Zero bounce in flow-through mode. s Control inputs compatible with TTL level. Ordering Code: Order Number Package Number Package Description FST16245MTD 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. Connection Diagram Logic Diagram Pin Descriptions Pin Name OEn 1An, 2An, 3An, 4An 1Bn, 2Bn, 3Bn, 4Bn Output Enable Input Active LOW Bus A Bus B No Internal Connection Truth Table Inputs OEx L H H HIGH Voltage Level L LOW Voltage Level Z High Impedance 2005 Fairchild Semiconductor Corporation DS500419 Outputs A, B A Port B Port Z FST16245 Absolute Maximum Ratings Note 1 Supply Voltage VCC DC Switch Voltage VS Note 2 DC Input Voltage VIN Note 3 DC Input Diode Current lIK VIN 0V DC Output Current IOUT DC VCC/GND Current ICC/IGND Storage Temperature Range TSTG 128mA r100mA to qC Recommended Operating Conditions Note 4 Power Supply Operating VCC Input Voltage VIN Output Voltage VOUT Input Rise and Fall Time tr, tf Switch Control Input 4.0V to 5.5V 0V to 5.5V 0V to 5.5V 0 ns/V to 5 ns/V Switch I/O 0 ns/V to DC Free Air Operating Temperature TA -40 qC to qC Note 1 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 2 VS is the voltage observed/applied at either the A or B Ports across the switch. Note 3 The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. Note 4 Unused control inputs must be held HIGH or LOW. They may not float. DC Electrical Characteristics TA to Parameter Units Conditions Note 5 Clamp Diode Voltage HIGH Level Input Voltage VIL II IOZ RON ICC ' ICC

PDF Datasheet Preview

FST16245 16-Bit Bus Switch

FST16245 16-Bit Bus Switch

The Fairchild Switch FST16245 provides 16-bits of highspeed 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.

The device is organized as a 16-bit switch. There are two 8-bit switches with separate output enable inputs. When OE is LOW, the switch is ON and Port a is connected to Port B. When OE is HIGH, the switch is OFF and a high impedance state exists between the A and B Ports.
s 4 switch connection between two ports. s Minimal propagation delay through the switch. s Low lCC. s Zero bounce in flow-through mode. s Control inputs compatible with TTL level.
Ordering Code:

Order Number Package Number

Package Description

FST16245MTD

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.

Connection Diagram

Logic Diagram

Pin Descriptions

Pin Name

OEn 1An, 2An, 3An, 4An 1Bn, 2Bn, 3Bn, 4Bn

Output Enable Input Active LOW Bus A Bus B

No Internal Connection

Truth Table

Inputs

OEx L H

H HIGH Voltage Level L LOW Voltage Level Z High Impedance
2005 Fairchild Semiconductor Corporation DS500419

Outputs A, B

A Port B Port Z

FST16245

Absolute Maximum Ratings Note 1

Supply Voltage VCC DC Switch Voltage VS Note 2 DC Input Voltage VIN Note 3 DC Input Diode Current lIK VIN 0V DC Output Current IOUT DC VCC/GND Current ICC/IGND Storage Temperature Range TSTG
128mA r100mA to qC

Recommended Operating Conditions Note 4

Power Supply Operating VCC Input Voltage VIN Output Voltage VOUT Input Rise and Fall Time tr, tf

Switch Control Input
4.0V to 5.5V 0V to 5.5V 0V to 5.5V
0 ns/V to 5 ns/V

Switch I/O
0 ns/V to DC

Free Air Operating Temperature TA -40 qC to qC

Note 1 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 2 VS is the voltage observed/applied at either the A or B Ports across the switch.

Note 3 The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed.

Note 4 Unused control inputs must be held HIGH or LOW. They may not float.

DC Electrical Characteristics

TA to

Parameter

Units

Conditions

Note 5

Clamp Diode Voltage

HIGH Level Input Voltage

VIL II IOZ RON

ICC ' ICC

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived FST16245MTD Datasheet file may be downloaded here without warranties.

Datasheet ID: FST16245MTD 515539