74FCT162H501CTPVC

Overview

The CY74FCT162H501CTPVC is an 18-bit registered universal bus transceiver manufactured by Texas Instruments. It operates at a supply voltage of 5V ± 10% and supports bidirectional data flow controlled by output enable, latch enable, and clock inputs. The device features bus hold on data inputs to retain the last active state, eliminating the need for external pull-up or pull-down resistors. It provides balanced 24 mA output drivers and includes Ioff circuitry to support partial-power-down mode operation.

Feature Summary

• Bus hold functionality retains input states when high impedance occurs
• Ioff circuitry prevents damaging current backflow during power-down
• Edge-rate control improves noise characteristics

Applications

• Partial-power-down applications requiring output disable
• Bidirectional bus architectures with registered data storage
• Systems needing elimination of external pull-up/down resistors

Procurement Notes

Verify the specific suffix 'CTPVC' corresponds to the SSOP-56 package and industrial temperature range (-40°C to +85°C). Confirm RoHS compliance status as datasheets may vary by revision. Check manufacturer lifecycle status for availability in new designs.

Selection Notes

Select this component for designs requiring 18-bit registered buffering with bus hold capabilities. Ensure compatibility with 5V logic levels and verify that the SSOP-56 package fits the PCB layout constraints. Consider the propagation delay specifications for timing requirements.

Part Context

This part belongs to the FCT (Fast CMOS) family of bus transceivers. It combines D-type latches and flip-flops to provide transparent, latched, or clocked modes. The H variant specifically denotes the inclusion of bus hold inputs.

Replacement Considerations

Check for direct equivalents such as the 74FCT162H501CTPACT (TSSOP version) if package changes are acceptable. Verify functional pinouts match before substitution.