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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 (PEN) 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: S/23.04 5,126In 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	5,126In Stock	Cut Tape S/23.04 S/17.59 S/16.23 S/14.71 View Reel S/12.88 S/14.09 S/13.82 S/13.74 S/12.88 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: S/22.58 751In Stock 2,000Expected 10/26/2026	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	751In Stock 2,000Expected 10/26/2026	Cut Tape S/22.58 S/17.20 S/15.84 S/14.36 View Reel S/12.69 S/13.66 S/13.23 S/13.08 S/12.69 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: S/19.35 2,928In 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	2,928In Stock	Cut Tape S/19.35 S/14.75 S/13.58 S/12.30 S/12.22 Reel S/10.35 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: S/18.53 3,966In 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	3,966In Stock	Cut Tape S/18.53 S/14.09 S/12.96 S/11.76 View Reel S/10.12 S/11.17 S/10.82 S/10.12 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: S/23.04 1,605In 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	1,605In Stock	Cut Tape S/23.04 S/17.59 S/16.23 S/14.71 View Reel S/13.39 S/14.09 S/13.82 S/13.39 S/13.39 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: S/25.03 2,031In 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	2,031In Stock 6,000Expected 1/11/2027	Cut Tape S/25.03 S/19.19 S/17.71 S/16.11 View Reel S/14.91 S/15.34 S/14.91 S/14.91 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: S/19.58 50In Stock 10,000Expected 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	50In Stock 10,000Expected 1/7/2027	Cut Tape S/19.58 S/14.95 S/13.78 S/12.49 View Reel S/11.05 S/11.87 S/11.68 S/11.60 S/11.05 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: S/15.57 66In Stock 21,000On 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	66In Stock 21,000On Order On Order Ship Dates Mfr. #: ISO1641BDR Stock: 66 Can Ship Immediately On Order: 6,000 Expected 5/27/2027 15,000 Expected 9/20/2027 Factory Lead-Time: 12 Weeks	Cut Tape S/15.57 S/11.76 S/10.78 S/9.73 View Reel S/8.41 S/9.23 S/9.19 S/8.60 S/8.41 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: S/15.49 45,775On 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	45,775On Order On Order Ship Dates Mfr. #: ISO1640BDR Stock: 0 On Order: 21,775 Expected 12/18/2026 24,000 Expected 12/31/2026 Factory Lead-Time: 20 Weeks	Cut Tape S/15.49 S/11.72 S/10.78 S/9.73 View Reel S/8.25 S/9.23 S/9.19 S/8.87 S/8.25 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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