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ISO164x/ISO164x-Q1 Digital Isolators

Texas Instruments ISO164x/ISO164x-Q1 Bi-Directional I²C Digital Isolators are hot-swappable, low-power, bidirectional isolators compatible with I²C interfaces. This digital isolator supports UL 1577 isolation ratings of 3000VRMS in the 8-D package. Each isolation channel in this low emissions device has a logic input and open-drain output separated by a double capacitive silicon dioxide (SiO₂) insulation barrier. This family includes devices certified by VDE, UL, CSA, TUV, and CQC. The Texas Instruments ISO164x/ISO164x-Q1 has two isolated bidirectional channels for clock and data lines. ISO164x/ISO164x-Q1 integrates logic required to support bidirectional channels, providing a much simpler design and smaller footprint when compared to optocoupler-based solutions. The ISO164x-Q1 devices are AEC-Q100 qualified for automotive applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Mounting Style	Package / Case	Number of Channels	Polarity	Data Rate	Isolation Voltage	Isolation Type	Supply Voltage - Max	Supply Voltage - Min	Operating Supply Current	Propagation Delay Time	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Digital Isolators Hot-swappable robus t-EMC bidirectional ISO1642DWR Texas Instruments 1: $5.92 4,442In Stock	Mfr. Part # ISO1642DWR Mouser Part # 595-ISO1642DWR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	4,442In Stock	Cut Tape $5.92 $4.52 $4.17 $3.78 View Reel $3.31 $3.62 $3.55 $3.53 $3.31 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ISO1642	SMD/SMT	SOIC-16	4 Channel	Bidirectional	50 Mb/s	6250 Vrms		5.5 V	2.25 V	4.3 mA, 8.7 mA	60 ns	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel
Digital Isolators Automotive hot-swap pable robust-EMC bi ISO1640BQDRQ1 Texas Instruments 1: $4.76 3,165In Stock	Mfr. Part # ISO1640BQDRQ1 Mouser Part # 595-ISO1640BQDRQ1	Texas Instruments	Digital Isolators Automotive hot-swap pable robust-EMC bi Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	3,165In Stock	Cut Tape $4.76 $3.62 $3.33 $3.02 View Reel $2.60 $2.87 $2.78 $2.60 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	ISO1640	SMD/SMT	SOIC-8	2 Channel	Bidirectional				5.5 V	2.5 V	2.7 mA, 5.3 mA	80 ns	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel
Digital Isolators Automotive hot-swap pable robust-EMC bi ISO1640QDWRQ1 Texas Instruments 1: $5.80 2,584In Stock	Mfr. Part # ISO1640QDWRQ1 Mouser Part # 595-ISO1640QDWRQ1	Texas Instruments	Digital Isolators Automotive hot-swap pable robust-EMC bi Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	2,584In Stock	Cut Tape $5.80 $4.42 $4.07 $3.69 View Reel $3.26 $3.51 $3.40 $3.36 $3.26 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ISO1640	SMD/SMT	SOIC-16	2 Channel	Bidirectional		1500 Vrms		5.5 V	2.25 V	2.7 mA, 5.3 mA	80 ns	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel
Digital Isolators Hot-swappable robus t-EMC bidirectional ISO1641DWR Texas Instruments 1: $5.03 2,750In Stock	Mfr. Part # ISO1641DWR Mouser Part # 595-ISO1641DWR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	2,750In Stock	Cut Tape $5.03 $3.84 $3.54 $3.21 Reel $2.91 View $3.05 $3.00 $2.98 $2.80 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ISO1641	SMD/SMT	SOIC-16	1 Channel	Bidirectional	50 Mb/s	5000 Vrms		5.5 V	2.25 V	2.7 mA, 4.7 mA	80 ns	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel
Digital Isolators Hot-swappable robus t-EMC bidirectional ISO1643DWR Texas Instruments 1: $5.92 1,312In Stock	Mfr. Part # ISO1643DWR Mouser Part # 595-ISO1643DWR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	1,312In Stock	Cut Tape $5.92 $4.52 $4.17 $3.78 View Reel $3.44 $3.62 $3.55 $3.44 $3.44 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ISO1643	SMD/SMT	SOIC-16	4 Channel	Bidirectional	50 Mb/s	6250 Vrms		5.5 V	2.25 V	4.8 mA, 9.3 mA	60 ns	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel
Digital Isolators Hot-swappable robus t-EMC bidirectional ISO1644DWR Texas Instruments 1: $6.50 38In Stock 6,000Expected 1/11/2027	Mfr. Part # ISO1644DWR Mouser Part # 595-ISO1644DWR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	38In Stock 6,000Expected 1/11/2027	Cut Tape $6.50 $4.99 $4.61 $4.19 View Reel $3.74 $4.02 $3.96 $3.74 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ISO1644	SMD/SMT	SOIC-16	4 Channel	Bidirectional	50 Mb/s	6250 Vrms		5.5 V	2.25 V	4.8 mA, 9.6 mA	60 ns	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel
Digital Isolators Hot-swappable robus t-EMC bidirectional ISO1640BDR Texas Instruments 1: $3.98 45,769On Order	Mfr. Part # ISO1640BDR Mouser Part # 595-ISO1640BDR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	45,769On Order On Order Ship Dates Mfr. #: ISO1640BDR Stock: 0 On Order: 21,769 Expected 12/18/2026 24,000 Expected 12/31/2026 Factory Lead-Time: 26 Weeks	Cut Tape $3.98 $3.01 $2.77 $2.50 View Reel $2.10 $2.37 $2.36 $2.32 $2.10 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	ISO1640	SMD/SMT	SOIC-8	2 Channel	Bidirectional	1.7 Mb/s	3000 Vrms	Capacitive Coupling	5.5 V	2.25 V	2.7 mA, 5.3 mA	11 ns	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel
Digital Isolators Hot-swappable robus t-EMC bidirectional ISO1640DWR Texas Instruments 1: $5.07 9,879Expected 1/7/2027	Mfr. Part # ISO1640DWR Mouser Part # 595-ISO1640DWR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	9,879Expected 1/7/2027	Cut Tape $5.07 $3.87 $3.57 $3.23 View Reel $2.80 $3.08 $3.05 $3.04 $2.80 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ISO1640	SMD/SMT	SOIC-16	2 Channel	Bidirectional	50 Mb/s	5000 Vrms		5.5 V	2.25 V	2.7 mA, 5.3 mA	80 ns	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel
Digital Isolators Hot-swappable robus t-EMC bidirectional ISO1641BDR Texas Instruments 1: $3.98 44,520On Order	Mfr. Part # ISO1641BDR Mouser Part # 595-ISO1641BDR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	44,520On Order On Order Ship Dates Mfr. #: ISO1641BDR Stock: 0 On Order: 2,520 Expected 4/1/2027 15,000 Expected 9/23/2027 27,000 TBD Factory Lead-Time: 26 Weeks	Cut Tape $3.98 $3.01 $2.77 $2.50 View Reel $2.12 $2.37 $2.36 $2.28 $2.12 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	ISO1641	SMD/SMT	SOIC-8	2 Channel	Bidirectional	3.4 Mb/s	3000 Vrms	Capacitive Coupling	5.5 V	2.25 V	2.7 mA, 4.7 mA	11 ns	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel

ISO164x/ISO164x-Q1 Digital Isolators

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ISO164x/ISO164x-Q1 Digital Isolators

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