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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 5,126In Stock	Mfr. Part No. ISO1642DWR Mouser Part No 595-ISO1642DWR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	5,126In 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,kb	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 ISO1640QDWRQ1 Texas Instruments 1: $5.80 751In Stock 2,000Expected 26/10/2026	Mfr. Part No. ISO1640QDWRQ1 Mouser Part No 595-ISO1640QDWRQ1	Texas Instruments	Digital Isolators Automotive hot-swap pable robust-EMC bi Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	751In Stock 2,000Expected 26/10/2026	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: $4.97 2,928In Stock	Mfr. Part No. ISO1641DWR Mouser Part No 595-ISO1641DWR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	2,928In Stock	Cut Tape $4.97 $3.79 $3.49 $3.16 $3.14 Reel $2.66 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ISO1641	SMD/SMT	SOIC-16	1 Channel	Bidirectional	50 Mb/s,kb	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 Automotive hot-swap pable robust-EMC bi ISO1640BQDRQ1 Texas Instruments 1: $4.76 3,966In Stock	Mfr. Part No. ISO1640BQDRQ1 Mouser Part No 595-ISO1640BQDRQ1	Texas Instruments	Digital Isolators Automotive hot-swap pable robust-EMC bi Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	3,966In 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 Hot-swappable robus t-EMC bidirectional ISO1643DWR Texas Instruments 1: $5.92 1,605In Stock	Mfr. Part No. ISO1643DWR Mouser Part No 595-ISO1643DWR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	1,605In 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,kb	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: $6.43 2,031In Stock 6,000Expected 11/01/2027	Mfr. Part No. ISO1644DWR Mouser Part No 595-ISO1644DWR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	2,031In Stock 6,000Expected 11/01/2027	Cut Tape $6.43 $4.93 $4.55 $4.14 View Reel $3.83 $3.94 $3.83 $3.83 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ISO1644	SMD/SMT	SOIC-16	4 Channel	Bidirectional	50 Mb/s,kb	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 ISO1640DWR Texas Instruments 1: $5.03 50In Stock 10,000Expected 07/01/2027	Mfr. Part No. ISO1640DWR Mouser Part No 595-ISO1640DWR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	50In Stock 10,000Expected 07/01/2027	Cut Tape $5.03 $3.84 $3.54 $3.21 View Reel $2.84 $3.05 $3.00 $2.98 $2.84 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ISO1640	SMD/SMT	SOIC-16	2 Channel	Bidirectional	50 Mb/s,kb	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: $4.00 66In Stock 21,000On Order	Mfr. Part No. ISO1641BDR Mouser Part No 595-ISO1641BDR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	66In Stock 21,000On Order On Order Ship Dates Mfr. No: ISO1641BDR Stock: 66 Can Dispatch Immediately On Order: 6,000 Expected 27/05/2027 15,000 Expected 20/09/2027 Factory Lead Time: 12 Weeks	Cut Tape $4.00 $3.02 $2.77 $2.50 View Reel $2.16 $2.37 $2.36 $2.21 $2.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	ISO1641	SMD/SMT	SOIC-8	2 Channel	Bidirectional	3.4 Mb/s,kb	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
Digital Isolators Hot-swappable robus t-EMC bidirectional ISO1640BDR Texas Instruments 1: $3.98 45,775On Order	Mfr. Part No. ISO1640BDR Mouser Part No 595-ISO1640BDR	Texas Instruments	Digital Isolators Hot-swappable robus t-EMC bidirectional Learn More about Texas Instruments ti iso154x digital isolator	Datasheet	45,775On Order On Order Ship Dates Mfr. No: ISO1640BDR Stock: 0 On Order: 21,775 Expected 18/12/2026 24,000 Expected 31/12/2026 Factory Lead Time: 20 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	ISO1640	SMD/SMT	SOIC-8	2 Channel	Bidirectional	1.7 Mb/s,kb	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

ISO164x/ISO164x-Q1 Digital Isolators

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