SN74LS75NSR

Latches Overview

The SN74LS75NSR is a quad bistable latch manufactured by Texas Instruments, utilizing Low-power Schottky (LS) bipolar logic technology. It features four independent transparent D-type latches housed in a 16-pin SOIC surface-mount package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a commercial temperature range of 0°C to +70°C. Key electrical specifications include a propagation delay of 27 ns at 5 V, a low-level output current capability of 32 mA, and a high-level output current of -400 uA. The unit weight is 200.700 mg.

Latches Feature Summary

• Provides four independent transparent D-type latches with complementary Q and Q outputs for binary information storage.
• Utilizes Low-power Schottky technology to maintain TTL-compatible speeds while significantly reducing power consumption.
• Features diode-clamped inputs designed to suppress transmission line effects such as ringing during high-speed switching.

Latches Applications

• Temporary storage of binary information between processing units and input/output or indicator units.
• Data latching when clock edge data is not yet prepared.
• General-purpose digital logic circuits requiring stable state retention.

Latches Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure compatibility with standard SO-16 footprints during PCB layout. Confirm RoHS compliance status through the latest product migration notices or datasheet revision history prior to final procurement decisions.

Latches Selection Notes

Select this component for designs requiring low-power Schottky performance with surface-mount integration. It serves as a direct functional replacement for other LS-series quad latches where pinout compatibility is required. Consider the 27 ns propagation delay and 32 mA sink current when driving loads. Verify that the 4.75 V to 5.25 V operating range aligns with the system's power supply rails.

Latches Part Context

This part belongs to the SN74LS75 series of quad bistable latches produced by Texas Instruments. The 'N' indicates the SOIC package style, while 'SR' denotes the reel packaging format. It is part of the broader 74LS family, which offers a balance of speed and power efficiency compared to standard TTL logic. The device is widely used in legacy and modern digital systems requiring reliable data storage elements.

Latches Replacement Considerations

SN74LS75DR

Latches FAQ

What is the function of the enable input on the SN74LS75NSR?

When the enable input is high, the latch is transparent, allowing the data input to pass directly to the output. When the enable input goes low, the output state is latched and held regardless of subsequent changes at the data input.

Does the SN74LS75NSR provide complementary outputs?

Yes, each of the four latches provides both true (Q) and inverted (Q) outputs, facilitating flexible interfacing with various logic families.