74FCT162373CTPACT

Latches Overview

The CY74FCT162373CTPACT is a 16-bit D-type transparent latch manufactured by Texas Instruments. It operates within an industrial temperature range of -40°C to +85°C and requires a supply voltage (VCC) of 5V ± 10%. The device features balanced 24 mA output drivers with current limiting resistors, providing reduced system switching noise and minimal undershoot. It supports partial-power-down mode via Ioff circuitry. Propagation delay from data input to output ranges from 1.5 ns to 4.2 ns, while the latch enable to output delay is between 2.0 ns and 5.5 ns.

Latches Feature Summary

• Balanced 24 mA output drivers with integrated current limiting resistors reduce ground bounce and undershoot.
• Ioff circuitry enables partial-power-down mode by disabling outputs to prevent damaging backflow currents.
• Edge-rate control circuitry improves noise characteristics for high-speed bus applications.

Latches Applications

• Temporary storage of data in high-speed bus systems
• Memory address latching
• Implementation of I/O ports

Latches Procurement Notes

Verify component authenticity through authorized channels as this part may be obsolete or subject to lifecycle changes. Confirm package specifications match design requirements, specifically the 48-lead TSSOP configuration. Ensure compatibility with existing board layouts due to specific pinout arrangements. Review datasheet revisions for any parameter updates before finalizing procurement decisions.

Latches Selection Notes

Select this component when designing systems requiring 16-bit data latching with low power consumption and high speed. The balanced output drivers are suitable for driving transmission lines without external termination. Consider the specific propagation delays and operating voltage constraints during signal integrity analysis. Verify that the industrial temperature range meets environmental requirements.

Latches Part Context

This device belongs to the FCT logic family, designed as a high-speed, low-power CMOS replacement for older ABT functions. It is built using advanced dual-metal CMOS technology. The CY74FCT162373T variant specifically offers balanced output drivers compared to other variants in the series that may have different drive strengths.

Latches Replacement Considerations

Public confirmed substitute part numbers: SN74ALVCH162373LR.

Latches FAQ

How does the Ioff feature benefit system operation?

The Ioff circuitry disables the outputs when the device is powered down, preventing damaging current backflow through the device during partial-power-down applications.

What is the typical ground bounce voltage for this device?

The typical VOLP (ground bounce) is less than 0.6V at VCC = 5V and TA = 25°C.