SN74FB2041ARCR

Specialty Logic Overview

The SN74FB2041ARCR is a 7-bit TTL/BTL transceiver designed for signal translation between TTL and backplane transceiver logic (BTL) environments. It complies with IEEE Std 1194.1-1991. The device features open-collector B-port outputs capable of sinking 100 mA, split A-port input/output pins, and two independent output enables. It includes a BIAS VCC pin to minimize signal distortion during live insertion or withdrawal. Operating at a supply voltage of 5 V, it provides high-impedance states during power-up and power-down.

Specialty Logic Feature Summary

• Translates signals between TTL and backplane transceiver logic (BTL) environments
• Open-collector B-port outputs sink up to 100 mA
• BIAS VCC pin minimizes signal distortion during live insertion or withdrawal
• Maintains high-impedance state during power-up and power-down

Specialty Logic Applications

• Backplane transceiver logic interfaces
• IEEE Std 1194.1-1991 compatible systems
• TTL to BTL signal translation

Specialty Logic Procurement Notes

Verify the exact ordering suffix against the manufacturer's current documentation. Suffixes such as 'ARC' indicate tube packaging, while 'ARCR' indicates reel packaging. Confirm RoHS compliance status by checking for the 'G3' suffix in official lists. Ensure the component matches the specified RC package type and temperature range before procurement.

Specialty Logic Selection Notes

Select this component when interfacing TTL logic with BTL backplane architectures requiring high-current sinking capabilities. The dual enable structure allows flexible partitioning into two 3-bit sections and one 1-bit section. Verify that the application environment supports the specified operating temperature range and supply voltage requirements.

Specialty Logic Part Context

This part belongs to the Texas Instruments SN74FB2041A family of 7-bit transceivers. It is specifically engineered for compatibility with IEEE Std 1194.1-1991 standards. The device integrates active clamping on TTL inputs to aid in line termination and utilizes a biasing network to precondition connectors and PC traces to the BTL high-level voltage.

Specialty Logic Replacement Considerations

SN74FB2041ARC

Specialty Logic FAQ

What is the function of the TMS, TCK, TDI, and TDO pins?

These pins are nonfunctional and not intended for use with the IEEE Std 1149.1 (JTAG) test bus. TMS and TCK are not connected, and TDI is shorted to TDO.

How does the device handle live insertion scenarios?

The BIAS VCC pin establishes a voltage between 1.62 V and 2.1 V on the BTL outputs when VCC is not connected, minimizing signal distortion during live insertion or withdrawal.