Texas Instruments Incorporated (Texas Instruments) has introduced two new ceramic-packaged transceivers, SN65HVD11SJD 3.3-V single, half-duplex RS-485 transceiver, and the SN65HVD233SJD 3.3-V CAN transceiver. These devices enable communication in high-temperature applications. These devices feature no thermal shutdown and meet the demanding requirements of oil exploration applications, such as downhole drilling.

These new transceivers are the first two parts to be released from the company in a complete signal chain roadmap for high-temperature industrial and aviation electronics applications. Future products will include data acquisition, processing and data transmission devices. Devices in the portfolio operate in an extended temperature range of -55C to 210C and have a targeted lifetime of 1000 hours.

Key Features:

3.3-V supply.

8-pin ceramic DIP and die packaging.

No thermal shutdown.

Available in an extended temperature range (-55C to 210C).

Extended high temperature operating life (1000 hours).

Upfront device feasibility evaluation.


-Based on ANSI TIA/EIA-485-A.

-ESD protection of 16k

-10 Mbps speed

-Integrated slope control

-1/8 unit-load


-Signaling rates up to 1 Mbps

-Bus pin short-circuit protection to +/- 36-V

-Exceeds ESD protection of 16k

-High impedance.

-Glitch-free power up and power down protection

-Qualified as TI HiRel standard products

Key Benefits:

Allow communications between various tools and electronics in harsh, high-temperature environments, such as downhole drilling.

Allow for more efficient oil and gas recovery from land and offshore drilling and other high-temperature industrial applications.