Signal Switches, Multiplexers, Decoders

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Package/Case	Packaging	Product Status	Type	Circuit	Independent Circuits	Current - Output High, Low	Voltage Supply Source	Voltage - Supply	Operating Temperature	Grade	Qualification	Mounting Type	Supplier Device Package
FST3245MTC IC BUS SWITCH 8 X 1:1 20TSSOP onsemi	1,791	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tube	Obsolete	Bus Switch	8 x 1:1	1	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	20-TSSOP
FST3345MTC IC BUS SWITCH 8 X 1:1 20TSSOP onsemi	3,049	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tube	Obsolete	Bus Switch	8 x 1:1	1	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	20-TSSOP
FST3244QSCX IC BUS SWITCH 4 X 1:1 20QSOP onsemi	4,875	-	RFQ	Datasheet	-	20-LSSOP (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Bus Switch	4 x 1:1	2	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	20-QSOP
FST3257MTC IC MUX/DEMUX 4 X 2:1 16TSSOP onsemi	2,228	-	RFQ	Datasheet	-	16-TSSOP (0.173", 4.40mm Width)	Tube	Obsolete	Multiplexer/Demultiplexer	4 x 2:1	1	-	Single Supply	3V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	16-TSSOP
FST3345MTCX IC BUS SWITCH 8 X 1:1 20TSSOP onsemi	3,513	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Bus Switch	8 x 1:1	1	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	20-TSSOP
FST3257M IC MUX/DEMUX 4 X 2:1 16SOIC onsemi	1,884	-	RFQ	Datasheet	-	16-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Multiplexer/Demultiplexer	4 x 2:1	1	-	Single Supply	3V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	16-SOIC
FST3253MTC IC MUX/DEMUX 2 X 4:1 16TSSOP onsemi	1,882	-	RFQ	Datasheet	-	16-TSSOP (0.173", 4.40mm Width)	Tube	Obsolete	Multiplexer/Demultiplexer	2 x 4:1	1	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	16-TSSOP
FST3126M IC BUS SWITCH 1 X 1:1 14SOIC onsemi	2,759	-	RFQ	Datasheet	-	14-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Bus Switch	1 x 1:1	4	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	14-SOIC
FST3125M IC BUS SWITCH 1 X 1:1 14SOIC onsemi	3,148	-	RFQ	Datasheet	-	14-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Bus Switch	1 x 1:1	4	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	14-SOIC
FST3126MX IC BUS SWITCH 1 X 1:1 14SOIC onsemi	2,462	-	RFQ	Datasheet	-	14-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Bus Switch	1 x 1:1	4	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	14-SOIC
FST3125MTC IC BUS SWITCH 1 X 1:1 14TSSOP onsemi	1,870	-	RFQ	Datasheet	-	14-TSSOP (0.173", 4.40mm Width)	Tube	Obsolete	Bus Switch	1 x 1:1	4	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	14-TSSOP
FST3384MTCX IC BUS SWITCH 5 X 1:1 24TSSOP onsemi	4,962	-	RFQ	Datasheet	-	24-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Bus Switch	5 x 1:1	2	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	24-TSSOP
FST3384MTC IC BUS SWITCH 5 X 1:1 24TSSOP onsemi	2,202	-	RFQ	Datasheet	-	24-TSSOP (0.173", 4.40mm Width)	Tube	Obsolete	Bus Switch	5 x 1:1	2	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	24-TSSOP
MM74HC157SJX IC MULTIPLEXER 4 X 2:1 16SOP onsemi	3,124	-	RFQ	Datasheet	74HC	16-SOIC (0.209", 5.30mm Width)	Tape & Reel (TR)	Obsolete	Multiplexer	4 x 2:1	1	5.2mA, 5.2mA	Single Supply	2V ~ 6V	-40°C ~ 85°C	-	-	Surface Mount	16-SOP
MM74HCT138SJ IC DECODER/DEMUX 1X3:8 16SOP onsemi	4,016	-	RFQ	Datasheet	74HCT	16-SOIC (0.209", 5.30mm Width)	Tube	Obsolete	Decoder/Demultiplexer	1 x 3:8	1	4.8mA, 4.8mA	Single Supply	4.5V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	16-SOP
MM74HC157SJ IC MULTIPLEXER 4 X 2:1 16SOP onsemi	1,705	-	RFQ	Datasheet	74HC	16-SOIC (0.209", 5.30mm Width)	Tube	Obsolete	Multiplexer	4 x 2:1	1	5.2mA, 5.2mA	Single Supply	2V ~ 6V	-40°C ~ 85°C	-	-	Surface Mount	16-SOP
FSTD3125MTCX IC BUS SWITCH 1 X 1:1 14TSSOP onsemi	3,481	-	RFQ	Datasheet	-	14-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Bus Switch	1 x 1:1	4	-	Single Supply	4.5V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	14-TSSOP
FST6800MTCX IC BUS SWITCH 10 X 1:1 24TSSOP onsemi	3,289	-	RFQ	Datasheet	-	24-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Bus Switch	10 x 1:1	1	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	24-TSSOP
FST3245QSC IC BUS SWITCH 8 X 1:1 20QSOP onsemi	1,004	-	RFQ	Datasheet	-	20-LSSOP (0.154", 3.90mm Width)	Tube	Obsolete	Bus Switch	8 x 1:1	1	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	20-QSOP
FST3306MTCX IC BUS SWITCH 1 X 1:1 8TSSOP onsemi	2,154	-	RFQ	Datasheet	-	8-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Bus Switch	1 x 1:1	2	-	Single Supply	4V ~ 5.5V	-40°C ~ 85°C	-	-	Surface Mount	8-TSSOP

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Signal Switches, Multiplexers, Decoders FAQ

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Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.

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Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.

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Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

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