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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 4,437In 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	4,437In Stock	Cut Tape $5.92 $4.52 $4.18 $3.78 View Reel $3.31 $3.62 $3.55 $3.54 $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 ISO1640QDWRQ1 Texas Instruments 1: $5.80 2,628In Stock	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	2,628In 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: $4.97 2,861In 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	2,861In 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	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 4,249In 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	4,249In Stock	Cut Tape $4.76 $3.62 $3.33 $3.02 View Reel $2.61 $2.87 $2.78 $2.61 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 1,738In 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	1,738In Stock	Cut Tape $5.92 $4.52 $4.18 $3.78 Reel $3.44 View $3.62 $3.55 $3.44 $3.36 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: $6.43 1,989In Stock 6,000Expected 2027/01/11	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	1,989In Stock 6,000Expected 2027/01/11	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	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: $5.04 9,885Expected 2027/01/07	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	9,885Expected 2027/01/07	Cut Tape $5.04 $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 44,995On 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	44,995On Order On Order Ship Dates Mfr. No: ISO1641BDR Stock: 0 On Order: 2,995 Expected 2027/05/27 15,000 Expected 2027/09/20 27,000 Expected 2027/10/07 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	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 2026/12/18 24,000 Expected 2026/12/31 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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