Toshiba Launches Dual-Channel Standard Digital Isolators that Contribute to Stable High-Speed Isolated Data Transmission in Industrial Equipment

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7:00 PM on Monday, October 27

The Associated Press

KAWASAKI, Japan--(BUSINESS WIRE)--Oct 27, 2025--

Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched four dual-channel, high-speed standard digital isolators for industrial equipment. The new “DCL52xx00 Series” products support stable operation with high common mode transient immunity (CMTI) of 100kV/μs (typ.) [1] and high-speed data rate of 150Mbps (max) [2]. Shipments start today.

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Toshiba: DCL52xx00 Series dual-channel digital isolators for industrial equipment.

The channel configuration of " DCL520C00 ” and “ DCL520D00 " is two forward channels, while " DCL521C00 ” and “ DCL521D00 " have one forward channel and one reverse channel. These new dual-channel products join the previously released quad-channel products in "DCL54xx01 Series" as standard digital isolators for industrial equipment. With the addition of these new products, Toshiba’s overall lineup now covers 14 products, offering a wide selection of channel configurations and helping to improve design flexibility.

The new DCL52xx00 Series products use Toshiba's proprietary magnetic coupling type isolated transmission method to achieve a high CMTI of 100kV/μs (typ.), the same as DCL54xx01 Series products. This delivers high level resistance to electrical noise between input and output in isolated signal transmission, enables stable control signal transmission, and contributes to stable equipment operation.

In addition, a low pulse width distortion of 0.8ns (typ.) [3] and a high-speed data rate of 150Mbps (max) are also achieved. The new products are suitable for multi-channel high-speed communication applications such as I/O interfaces with UART [4] and I 2 C [5] communication.

Toshiba has already started mass production of standard digital isolators for industrial equipment and automotive equipment. Going forward, the company will increase the lineup of packages and number of channels in both areas. It will continue to provide high-quality isolation devices and photocouplers that support the reliability and real-time data transmission required by industrial and automotive equipment.

Notes:
[1]	Test condition: V I =V DDI or 0V, V CM =1500V, T a =25°C (V DDI is V DD1 or V DD2 of the input-side)
[2]	Test condition: V DD1 =V DD2 =2.25 to 5.5V, T a =-40 to 125°C
[3]	Test condition: V DD1 =V DD2 =5V, T a =25°C
[4]	UART (Universal Asynchronous Receiver Transmitter), asynchronous serial communication. Communication method for transmitting and receiving data without a clock signal.
[5]	I 2 C (Inter-Integrated Circuit), synchronous serial communication. Communication method for transmitting and receiving data synchronized with a clock signal.

Applications

Industrial automation systems (programmable logic controllers, I/O interfaces, etc.)
Motor control
Inverters

Features

Dual-channel:
Two forward channels;
One forward channel and one reverse channel
High common mode transient immunity: CMTI=100kV/μs (typ.)
High-speed data rate: t_bps=150Mbps (max)

Main Specifications

Part number	DCL520C00	DCL520D00	DCL521C00	DCL521D00
Number of channels (Forward directions : reverse directions)	2 (2:0)	2 (2:0)	2 (1:1)	2 (1:1)
Default output logic	Low	High	Low	High
Package	SOIC8-N
Absolute maximum ratings	Operating temperature T opr (°C)	-40 to 125
Storage temperature T stg (°C)	-65 to 150
Maximum withstanding isolation voltage (60s) BV S (Vrms)	T a =25°C	Max	3000
Recommended operating conditions	Power supply voltage V DD1, V DD2 (V)	T opr =-40 to 125°C	2.25 to 5.5
Electrical characteristics	Common mode transient immunity CMTI (kV/μs)	V I =V DDI or 0V, V CM =1500V, T a =25°C	Typ.	100
Data rate t_bps (Mbps)	V DD1 =V DD2 =2.25 to 5.5V, T a =-40 to 125°C	Max	150
Pulse width distortion PWD (ns)	V DD1 =V DD2 =5V, T a =25°C	Typ.	0.8
Propagation delay t PHL, t PLH (ns)	Typ.	10.9
Sample Check & Availability	Buy Online	Buy Online	Buy Online	Buy Online

Follow the links below for more on the new products.
DCL520C00
DCL520D00
DCL521C00
DCL521D00

Follow the link below for more on Toshiba’s standard digital isolators.
Standard Digital Isolator

To check availability of the new products at online distributors, visit:
DCL520C00
Buy Online
DCL520D00
Buy Online
DCL521C00
Buy Online
DCL521D00
Buy Online

* Company names, product names, and service names may be trademarks of their respective companies.
* Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.

About Toshiba Electronic Devices & Storage Corporation

Toshiba Electronic Devices & Storage Corporation, a leading supplier of advanced semiconductor and storage solutions, draws on over half a century of experience and innovation to offer customers and business partners outstanding discrete semiconductors, system LSIs and HDD products.

Its 17,000 employees around the world share a determination to maximize product value, and to promote close collaboration with customers in the co-creation of value and new markets. The company looks forward to building and to contributing to a better future for people everywhere.

Find out more at https://toshiba.semicon-storage.com/ap-en/top.html

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CONTACT: Customer Inquiries:

Optoelectronic Device Sales & Marketing Dept.

Tel: +81-44-548-2218

Contact UsMedia Inquiries:

C. Nagasawa

Communications & Market Intelligence Dept.

Toshiba Electronic Devices & Storage Corporation

[email protected]

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