TC74LCX373FTELM

Overview

The TC74LCX373FTELM is an octal D-type transparent latch manufactured by Toshiba Semiconductor and Storage. It operates within a supply voltage range of 1.65V to 3.6V and features true outputs with a maximum propagation delay of 8.0ns at 3.3V with 50pF load. The device provides 24mA output drive current in both high and low states, with a static current of 10µA. It is housed in a 20-TSSOP package and supports surface mount installation across an operating temperature range of -40°C to 85°C.

Feature Summary

• Octal D-type transparent latch architecture for parallel data storage
• Low-voltage operation compatible with 1.65V to 3.6V power supplies
• High-speed performance with 8.0ns propagation delay characteristics
• Robust output drive capability supporting 24mA source and sink currents

Applications

• Parallel-to-serial data conversion circuits
• Buffering and latching digital signals in low-voltage systems
• Memory address and data register applications
• Portable electronic devices requiring low power consumption

Procurement Notes

This component is officially classified as obsolete and no longer manufactured by Toshiba Semiconductor and Storage. Procurement should focus on verified direct substitutes such as the 74LCX373FT from the same manufacturer or cross-brand alternatives like Nexperia's 74LVC574APW. Buyers must verify authenticity through authorized distributors due to potential surplus market availability and ensure compatibility with existing design specifications before integration.

Selection Notes

Select this component for designs requiring octal latching functionality in low-voltage environments. The 20-TSSOP package suits space-constrained surface-mount applications. Verify that the 8.0ns delay meets system timing requirements and that the 1.65V minimum supply aligns with the target platform's power rails. Consider the obsolete status when planning long-term production runs.

Part Context

Part of the 74LCX series, which utilizes CMOS technology for low-power operation. The base product number is 74LCX373. This specific variant includes the FTELM suffix indicating the 20-TSSOP package and tape-and-reel packaging format. It belongs to the broader family of logic ICs designed for portable and battery-operated equipment.

Replacement Considerations

Direct substitute: 74LCX373FT (Toshiba). Cross-brand alternative: 74LVC574APW (Nexperia). Verify pinout compatibility and electrical parameters against original design requirements when substituting obsolete parts.