74VHC16373TTR

Latches Overview

The STMicroelectronics 74VHC16373TTR is an obsolete advanced high-speed CMOS 16-bit D-type latch with non-inverting 3-state outputs. It operates within a supply voltage range of 2 V to 5.5 V and features power-down protection on all inputs, allowing 0 to 7 V acceptance regardless of the supply voltage. The device utilizes sub-micron silicon gate and double-layer metal wiring C2MOS technology for low power dissipation and high noise immunity. It includes two latch enable (nLE) and two output enable (nOE) inputs for byte control.

Latches Feature Summary

• Advanced high-speed CMOS 16-bit D-type latch with non-inverting 3-state outputs
• Power-down protection on inputs supporting 0 to 7 V acceptance independent of supply voltage
• Symmetrical output impedance and balanced propagation delays

Latches Applications

• Bus-oriented applications requiring byte-controlled data latching
• Interfacing 5 V logic devices to 3 V systems
• High-speed digital data storage in mixed-voltage environments

Latches Procurement Notes

This component is officially listed as an Obsolete Product by STMicroelectronics. Verify current availability through authorized distributors or secondary markets. Confirm package integrity and authenticity due to potential end-of-life status. Ensure design updates consider replacement components if long-term supply stability is required.

Latches Selection Notes

Select this part only for legacy designs compatible with TSSOP-48 packaging. Note that it lacks bus-hold inputs found in some LVCH variants. Verify operating temperature requirements against the -55°C to +125°C range. Check pin compatibility with existing 74 series 16373 footprints before implementation.

Latches Part Context

The 74VHC16373 belongs to the VHC (Very High Speed CMOS) family, offering faster switching speeds than standard HC series devices while maintaining CMOS low power characteristics. The 'TTR' suffix indicates the TSSOP-48 tape and reel packaging format. This specific variant is distinct from LVC/LVCH families regarding input tolerance and internal architecture.

Latches Replacement Considerations

NXP Semiconductors offers the 74LVCH16373A as a functionally similar 16-bit transparent latch with 3-state outputs. Verify pinout compatibility and electrical specifications such as input voltage tolerance and propagation delay differences when substituting.