SN74LS672N

Shift Registers Overview

The SN74LS672N is a 4-bit universal shift register and latch manufactured by Texas Instruments in the LS TTL logic series. It features parallel-in parallel-out design with true outputs and bidirectional shifting capabilities. The component utilizes a 20-pin PDIP package for through-hole mounting. It operates within a supply voltage range of 4.75 V to 5.25 V and supports a commercial temperature range from 0°C to +70°C. The device includes 3-state outputs for bus-oriented applications.

Shift Registers Feature Summary

• Bidirectional shifting capability allowing data movement in both directions
• Parallel-in parallel-out architecture for efficient data loading and retrieval
• 3-state outputs enabling direct connection to system buses without external buffers

Shift Registers Applications

• Data storage in digital systems requiring parallel access
• Serial-to-parallel and parallel-to-serial conversion circuits
• General-purpose shift register applications in TTL-based designs

Shift Registers Procurement Notes

Verify the specific suffix 'N' confirms the PDIP-20 through-hole package variant. Confirm RoHS compliance status as older LS-TTL variants may not meet current environmental directives. Check datasheet revisions for any pinout or electrical characteristic updates before finalizing procurement specifications.

Shift Registers Selection Notes

Select this component when a 4-bit bidirectional shift register with parallel I/O is required in a through-hole design. Ensure the system voltage aligns with the 4.75V to 5.25V operating range. Consider the 3-state output feature if bus sharing is necessary, distinguishing it from non-3-state alternatives.

Shift Registers Part Context

Part of the SN74LS67x family of universal shift registers. The SN74LS672N specifically provides 4-bit capacity with parallel inputs/outputs and bidirectional control, differing from serial-only variants like the SN74LS164 or unidirectional registers.

Shift Registers Replacement Considerations

• SN74LS672DR (SOIC-20 surface mount equivalent)
• SN74LS672NS (SOIC-20 narrow equivalent)

Shift Registers FAQ

Does the SN74LS672N support bidirectional shifting?

Yes, the device supports bidirectional shifting controlled by dedicated input pins.

What type of outputs does the SN74LS672N provide?

It provides true outputs with 3-state capability for bus-oriented operations.