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Bus Switch

IDT offers a 2.5/3.3 V & 5 V bus switch family known as QuickSwitch®. The QuickSwitch (or Quick Switch) technology was created to meet unique customer needs by providing cost-effective performance-enhanced solutions. These devices provide low ON-resistance and high-speed switching without adding propagation delay, ground bounce noise, or static power dissipation. IDT offers bus switches with different functions, including multiplexer, demultiplexer, analog switch and rail-to-rail switching products. These are ideal for bidirectional interfaces between mixed-supply buses, and in applications that require isolation, protection and voltage translation. These switches are available in octal, double density, and wide bus configurations. IDT analog bus switch products are ideal for multimedia PCs and video conferencing capabilities.

IDT’s rich portfolio of bus switches includes:
  • Standard bus switch products
  • Bus exchange products
  • Multiplexer (Mux) products
  • Demultiplexer (DeMux) products
  • Synchronous multiplexer demultiplexer (Mux/DeMux) products

► Download the Logic Products Overview (PDF)
► Download the Digital Logic Products Packaging and Ordering Information (PDF)

About Bus Switches (including QuickSwitch)
A bus switch IC is an array of high-speed, low-resistance CMOS switches used to relay a group of signals known as a signal bus. Sometimes known as a bilateral switch or analog switch, these bus switch ICs offer the same basic function of a mechanical relay, but have no moving parts and offer much better performance.

The control input to the device is typically a digital signal that switches between the positive and negative supply voltages, with the more positive voltage switching the device on and the more negative switching the device off.

Important parameters of a bus switch are:
  • on-resistance: the resistance when switched on. IDT’s bus switches are designed to offer very low on-resistance (down to 5 ohms), becoming almost transparent to the system architecture.
  • bus width: the number of switch channels in a single device. IDT offers bus switch ICs with up to 32 signal paths to minimize PCB area requirements and simplify the bill of materials.
  • core voltage: the power supply voltage required to power the device. IDT’s bus switches are available in both 2.5/3.3 V and 5 V options depending on system power supply availability.
 

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FunctionPkg. CodeTemp. RangeBus Width (bits)Core Voltage (V)On Resistance (Ω)Speed Grade
74CBTLV16210 Datasheet74CBTLV16210 - Block Diagram74CBTLV16210
Low-Voltage 20-Bit Bus Switc...
Bus SwitchPAG48-40 to 85°C203.35Standard
74CBTLV16211 Datasheet74CBTLV16211 - Block Diagram74CBTLV16211
Low-Voltage 24-Bit Bus Switc...
Bus SwitchPAG56-40 to 85°C243.38Standard
74CBTLV16212 Datasheet74CBTLV16212 - Block Diagram74CBTLV16212
Low-Voltage 24-Bit Bus Excha...
Bus Exchange SwitchPAG56-40 to 85°C243.35Standard
74CBTLV16245 Datasheet74CBTLV16245 - Block Diagram74CBTLV16245
Low-Voltage 16-Bit Bus Switc...
Bus SwitchPAG48-40 to 85°C163.35Standard
74CBTLV16292 Datasheet74CBTLV16292 - Block Diagram74CBTLV16292
Low-Voltage 12-Bit 1:2 Mux /...
Mux/Demux Bus SwitchPAG56-40 to 85°C243.35Standard
74CBTLV3125 Datasheet74CBTLV3125 - Block Diagram74CBTLV3125
Low-Voltage Quadruple Bus Sw...
Bus SwitchPCG16, PGG14-40 to 85°C43.35Standard
74CBTLV3244 Datasheet74CBTLV3244 - Block Diagram74CBTLV3244
Low-Voltage Octal Bus Switch
Bus SwitchPCG20, PGG20-40 to 85°C83.35Standard
74CBTLV3245 Datasheet74CBTLV3245
Low-Voltage Octal Bus Switch
Bus SwitchPCG20, PGG20-40 to 85°C83.35Standard
74CBTLV3251 Datasheet74CBTLV3251 - Block Diagram74CBTLV3251
Low-Voltage 8:1 Multiplexer/...
Multiplexer/DemultiplexerPCG16, PGG16-40 to 85°C83.35Standard
74CBTLV3253 Datasheet74CBTLV3253 - Block Diagram74CBTLV3253
Low-Voltage Dual 1-of-4 Mult...
Multiplexer/DemultiplexerPCG16, PGG16-40 to 85°C83.35Standard
74CBTLV3257 Datasheet74CBTLV3257 - Block Diagram74CBTLV3257
Low-Voltage Quad 2:1 Mux/Dem...
Mux/Demux Bus SwitchPCG16, PGG16-40 to 85°C83.35Standard
74CBTLV3384 Datasheet74CBTLV3384 - Block Diagram74CBTLV3384
Low-Voltage 10-Bit Bus Switc...
Bus SwitchPCG24, PGG24-40 to 85°C103.35Standard
74CBTLV3861 Datasheet74CBTLV3861 - Block Diagram74CBTLV3861
Low-Voltage 10-Bit Bus Switc...
Bus SwitchPCG24, PGG24-40 to 85°C103.35Standard
74CBTLV3862 Datasheet74CBTLV3862 - Block Diagram74CBTLV3862
Low-Voltage 10-Bit Bus Switc...
Bus Switch with Active High and Low EnablesPCG24, PGG24-40 to 85°C103.3Standard
74CBTLV6800 Datasheet74CBTLV6800 - Block Diagram74CBTLV6800
Low-Voltage 10-Bit Bus Switc...
Bus Switch with Precharged OutputsPCG24, PGG24-40 to 85°C103.35Standard
74FST6800 Datasheet74FST6800 - Block Diagram74FST6800
10-Bit Bus Switch with Prech...
Bus SwitchPCG24, PGG24-40 to 85°C1055Standard
QS3125 DatasheetQS3125 - Block DiagramQS3125
High-Speed CMOS Quadruple Bu...
Bus SwitchDCG14, PCG16-40 to 85°C455Standard
QS3126 DatasheetQS3126 - Block DiagramQS3126
High-Speed CMOS Quadruple Bu...
Bus SwitchDCG14, PCG16-40 to 85°C455Standard
QS32245 DatasheetQS32245 - Block DiagramQS32245
High-Speed CMOS QuikSwitch 8...
245 Switch w/Series ResisterPCG20, PGG20-40 to 85°C8528Standard
QS32390 DatasheetQS32390 - Block DiagramQS32390
High-Speed CMOS QuickSwitch ...
16:8 MultiplexerPCG28-40 to 85°C16528Standard
QS3244 DatasheetQS3244 - Block DiagramQS3244
High-Speed CMOS QuickSwitch ...
244 SwitchPCG20, PGG20, PSG20-40 to 85°C855Standard
QS3245 DatasheetQS3245 block diagram 2QS3245
High-Speed CMOS QuickSwitch ...
245 SwitchPCG20, PSG20-40 to 85°C855Standard
QS3251 DatasheetQS3251 - Block DiagramQS3251
High-Speed CMOS QuickSwitch ...
8:1 Mux/DemuxDCG16, PCG16-40 to 85°C855Standard
QS3253 DatasheetQS3253 - Block DiagramQS3253
High-Speed CMOS QuickSwitch ...
2x4:1 Mux/DemuxDCG16, PCG16-40 to 85°C855Standard
QS3257 DatasheetQS3257 - Block DiagramQS3257
High-Speed CMOS QuickSwitch ...
4x2:1 Mux/DemuxDCG16, PCG16-40 to 85°C855Standard
QS32X2245 DatasheetQS32X2245 - Block DiagramQS32X2245
High-Speed CMOS QuickSwitch ...
245 Switch w/Series ResisterDMG40-40 to 85°C16528Standard
QS32X2384 DatasheetQS32X2384 - Block DiagramQS32X2384
High-Speed CMOS 20-Bit Bus S...
Bus SwitchDJG48-40 to 85°C20528Standard
QS32X245 DatasheetQS32X245 - Block DiagramQS32X245
High-Speed CMOS QuickSwitch ...
245 SwitchDMG40-40 to 85°C1655Standard
QS32X384 DatasheetQS32X384 - Block DiagramQS32X384
QuickSwitch Products High-Sp...
Bus SwitchDJG48-40 to 85°C2055Standard
QS32X861 DatasheetQS32X861 - Block DiagramQS32X861
QuickSwitch Products High-Sp...
Bus Switch (Flow-through)DJG48-40 to 85°C2055Standard
QS32XL384 DatasheetQS32XL384 - Block DiagramQS32XL384
QuickSwitch High-speed CMOS ...
Bus SwitchDJG48-40 to 85°C2055Standard
QS32XVH2245 DatasheetQS32XVH2245 - Block DiagramQS32XVH2245
3.3V 16-Bit Bus Switch for H...
Bus SwitchDMG40-40 to 85°C163.328Standard
QS32XVH245 DatasheetQS32XVH245 - Block DiagramQS32XVH245
3.3V 16-Bit Bus Switch for H...
Bus SwitchDMG40-40 to 85°C163.35Standard
QS32XVH384 DatasheetQS32XVH384 - Block DiagramQS32XVH384
2.5V/3.3V 20-Bit High Bandwi...
High Bandwidth Bus SwitchDJG48-40 to 85°C203.35Standard
QS3306A DatasheetQS3306A - Block DiagramQS3306A
High-Speed CMOS Dual Bus Swi...
Dual Bus SwitchDCG8-40 to 85°C255Standard
QS3383 DatasheetQS3383 - Block DiagramQS3383
10-Bit Bus Exchange Switch
Bus Switch/ExchangePCG24-40 to 85°C1055Standard
QS3384 DatasheetQS3384 - Block DiagramQS3384
High-Speed CMOS 10-Bit Bus S...
Bus SwitchPCG24, PGG24-40 to 85°C1055Standard
QS3390 DatasheetQS3390 - Block DiagramQS3390
High-Speed CMOS QuickSwitch ...
16:8 MultiplexerPCG28-40 to 85°C1655Standard
QS33X257 DatasheetQS33X257 - Block DiagramQS33X257
High-Speed CMOS QuickSwitch ...
24:12 Mux/DemuxDJG48-40 to 85°C2455Standard
QS34X2245 DatasheetQS34X2245 - Block DiagramQS34X2245
High-Speed CMOS QuickSwitch ...
245 Switch w/Series ResisterDMG80-40 to 85°C32528Standard
QS34X245 DatasheetQS34X245 - Block DiagramQS34X245
High-Speed CMOS QuickSwitch ...
245 SwitchDMG80-40 to 85°C3255Standard
QS34X383 DatasheetQS34X383 - Block DiagramQS34X383
High-Speed 32-Bit Bus Exchan...
Bus Switch/ExchangeDMG80-40 to 85°C3255Standard
QS34XVH2245 DatasheetQS34XVH2245 - Block DiagramQS34XVH2245
QuickSwitch Products 3.3V 32...
245 Switch w/Series ResisterDMG80-40 to 85°C323.328Standard
QS34XVH245 DatasheetQS34XVH245 - Block DiagramQS34XVH245
QuickSwitch Products 3.3V 32...
245 SwitchDMG80-40 to 85°C323.35Standard
QS3861 DatasheetQS3861 - Block DiagramQS3861
High-Speed CMOS 10-Bit Bus S...
Bus Switch (Flow-through)PCG24, PGG24-40 to 85°C1055Standard
QS3L384 DatasheetQS3L384 - Block DiagramQS3L384
QuikSwitch High-Speed Low Po...
Bus SwitchPCG24, PGG24-40 to 85°C1055Standard
QS3VH125 DatasheetQS3VH125 - Block DiagramQS3VH125
QuickSwitch 3.3V Quad Active...
Bus SwitchDCG14, PCG16-40 to 85°C43.35Standard
QS3VH126 DatasheetQS3VH126 - Block DiagramQS3VH126
QuickSwitch Products 3.3V Qu...
Bus SwitchDCG14, PCG16-40 to 85°C43.35Standard
QS3VH16210 DatasheetQS3VH16210 - Block DiagramQS3VH16210
2.5V / 3.3V 20-Bit, 2-Port H...
2-Port Bus SwitchPAG48-40 to 85°C203.35Standard
QS3VH16211 DatasheetQS3VH16211 - Block DiagramQS3VH16211
2.5V / 3.3V 24-Bit High Band...
Bus SwitchPAG56-40 to 85°C243.35Standard
QS3VH16212 DatasheetQS3VH16212 - Block DiagramQS3VH16212
2.5V / 3.3V 24-Bit Bus Excha...
Bus Exchange SwitchPAG56-40 to 85°C243.35Standard
QS3VH16233 DatasheetQS3VH16233 - Block DiagramQS3VH16233
2.5V / 3.3V 32:16 Mux / Demu...
32:16 Mux/DemuxPAG56-40 to 85°C323.35Standard
QS3VH16244 DatasheetQS3VH16244 - Block DiagramQS3VH16244
2.5V / 3.3V 16-Bit High Band...
Bus SwitchPAG48-40 to 85°C163.35Standard
QS3VH16245 DatasheetQS3VH16245 - Block DiagramQS3VH16245
2.5V / 3.3V 16-Bit High Band...
Bus SwitchPAG48-40 to 85°C163.35Standard
QS3VH16800 DatasheetQS3VH16800 - Block DiagramQS3VH16800
2.5V / 3.3V 20-Bit High Band...
Bus Switch w/Pre-charged OutputsPAG48-40 to 85°C203.35Standard
QS3VH16861 DatasheetQS3VH16861 - Block DiagramQS3VH16861
2.5V/3.3V 20-Bit Flow-Throug...
Bus Switch (Flow-through)PAG48-40 to 85°C203.35Standard
QS3VH16862 DatasheetQS3VH16862 - Block DiagramQS3VH16862
2.5V / 3.3V 20-Bit Dual Port...
Dual-Port Bus SwitchPAG48-40 to 85°C203.35Standard
QS3VH2245 DatasheetQS3VH2245 - Block DiagramQS3VH2245
QuickSwitch Products 3.3V 8-...
245 Switch w/Series ResisterPCG20, PGG20-40 to 85°C83.328Standard
QS3VH244 DatasheetQS3VH244 - Block DiagramQS3VH244
2.5V/3.3V 8-Bit High Bandwid...
244 SwitchPCG20, PGG20-40 to 85°C83.35Standard
QS3VH245 DatasheetQS3VH245 - Block DiagramQS3VH245
QuickSwitch Products 3.3V 8-...
245 SwitchPCG20, PGG20, PSG20-40 to 85°C83.35Standard
QS3VH251 DatasheetQS3VH251 - Block DiagramQS3VH251
2.5V/3.3V 8:1 Mux/Demux High...
8:1 Mux/DemuxPCG16, PGG16-40 to 85°C83.35Standard
QS3VH253 DatasheetQS3VH253 - Block DiagramQS3VH253
2.5V/3.3V Dual 4:1 Mux/Demux...
2x4:1 Mux/DemuxPCG16, PGG16-40 to 85°C83.35Standard
QS3VH257 DatasheetQS3VH257 - Block DiagramQS3VH257
3.3V Quad 2:1 Mux/Demux for ...
4x2:1 Mux/DemuxDCG16, PCG16, PGG16-40 to 85°C83.35Standard
QS3VH2861 DatasheetQS3VH2861 - Block DiagramQS3VH2861
2.5V/3.3V 10-Bit Flow-Throug...
Bus Switch w/Series ResisterPCG24-40 to 85°C103.35Standard
QS3VH384 DatasheetQS3VH384 - Block DiagramQS3VH384
2.5V/3.3V 10-Bit High Bandwi...
Bus SwitchPCG24, PGG24-40 to 85°C103.35Standard
QS3VH861 DatasheetQS3VH861 - Block DiagramQS3VH861
2.5V/3.3V 10-Bit Flow-Throug...
Bus Switch (Flow-through)PCG24-40 to 85°C103.35Standard
QS3VH862 DatasheetQS3VH862 - Block DiagramQS3VH862
QuickSwitch Products 2.5V/3....
Bus Switch w/EnablePCG24-40 to 85°C103.35Standard
QS4A101 DatasheetQS4A101 - Block DiagramQS4A101
4-Channel Analog Switch
Analog SwitchPCG16-40 to 85°C455Standard
QS4A105 DatasheetQS4A105 - Block DiagramQS4A105
8-Channel Analog Switch
Analog SwitchPCG20-40 to 85°C855Standard
QS4A110 DatasheetQS4A110 - Block DiagramQS4A110
10-Channel Analog Switch
Analog SwitchPCG24-40 to 85°C1055Standard
QS4A201 DatasheetQS4A201 - Block DiagramQS4A201
5-Channel 2:1 Analog Mux/Dem...
Analog Mux/DemuxPCG24-40 to 85°C1055Standard
QS4A205 DatasheetQS4A205 - Block DiagramQS4A205
4-Channel 2:1 Analog Mux/Dem...
Analog Mux/DemuxPCG16-40 to 85°C855Standard
QS4A210 DatasheetQS4A210 - Block DiagramQS4A210
2-Channel 4:1 Analog Mux/Dem...
Analog Mux/DemuxPCG16-40 to 85°C855Standard
QS4A215 DatasheetQS4A215 - Block DiagramQS4A215
6-Channel 4:1 Analog Mux/Dem...
Analog Mux/DemuxDJG48-40 to 85°C2455Standard