SN74LVC841APWR

Latches Overview

The SN74LVC841APWR is a 10-bit bus-interface D-type latch with 3-state outputs manufactured by Texas Instruments. It operates from a supply voltage range of 1.65 V to 3.6 V and features inputs that accept voltages up to 5.5 V, supporting mixed-mode signal operation. The device provides noninverting data inputs and buffered output-enable (OE) control for high-impedance states. Key electrical parameters include a maximum propagation delay of 6.7 ns at 3.3 V, typical output ground bounce of 2 V at 3.3 V, and an operating temperature range of -40°C to 85°C.

Latches Feature Summary

• Supports partial-power-down mode operation via Ioff circuitry to prevent damaging current backflow when powered down.
• Enables mixed-mode signal operation on all ports, allowing 5-V input/output voltage compatibility with 3.3-V VCC.
• Designed specifically for driving highly capacitive or relatively low-impedance loads without requiring interface or pullup components.

Latches Applications

• Implementing buffer registers in digital systems
• Configuring I/O ports for data interfacing
• Utilizing as bidirectional bus drivers
• Serving as working registers in memory architectures

Latches Procurement Notes

Verify the specific package type and marking code against the official ordering information to ensure correct identification. Confirm RoHS compliance status and moisture sensitivity level ratings prior to assembly. Cross-reference the manufacturer part number with the latest package option addendum to validate production status and material specifications.

Latches Selection Notes

Select this component for applications requiring 10-bit latching with 3-state output control within the 1.65-V to 3.6-V supply range. Ensure the design accommodates the 5.5-V input tolerance if interfacing with higher voltage logic levels. Consider the thermal impedance characteristics of the TSSOP package for appropriate heat dissipation planning.

Latches Part Context

This device belongs to the SN74LVC841A family of 10-bit bus-interface D-type latches. It is designed for low-voltage CMOS technology and offers high-speed performance suitable for modern digital interfaces. The product line includes various package options such as SOIC, SSOP, and TVSOP to accommodate different board space and mounting requirements.

Latches Replacement Considerations

Direct substitutes include SN74LVC841ADW, SN74LVC841ADBR, SN74LVC841APW, SN74LVC841ADGVR, and SN74LVC841APWT. Verify pinout compatibility and package dimensions before substitution.

Latches FAQ

How does the device handle partial-power-down scenarios?

The device supports partial-power-down mode through its Ioff circuitry, which disables the outputs to prevent damaging current backflow when the device is powered down.

Can this latch interface between 3.3-V and 5-V logic systems?

Yes, the inputs accept voltages up to 5.5 V, allowing the device to support mixed-mode signal operation on all ports with 5-V input/output voltage while operating at 3.3-V VCC.