74ABT16501CMTDX

Overview

The onsemi 74ABT16501CMTDX is an 18-bit universal bus transceiver featuring 3-STATE outputs in a 56-lead Thin Shrink Small Outline Package (TSSOP). It integrates D-type latches and flip-flops to support transparent, latched, and clocked data modes. The device operates within a supply voltage range of 4.5V to 5.5V. Maximum propagation delay is 6.0 ns, with a maximum clock frequency of 150 MHz. Output drive capabilities include -32 mA high-level current and 64 mA low-level current.

Feature Summary

• Combines D-type latches and flip-flops for flexible transparent, latched, or clocked operation
• Flow-through architecture optimizes PCB layout efficiency
• Provides glitch-free high impedance during power-up and power-down cycles
• Supports non-destructive hot insertion capability

Applications

• High-speed bidirectional bus interfacing
• Data buffering and register applications
• System memory and I/O expansion

Procurement Notes

Verify the specific package suffix 'CMTD' corresponds to the 56-lead TSSOP configuration. Confirm RoHS compliance status through official documentation. Check for obsolescence notices as this component originates from legacy Fairchild Semiconductor product lines now managed by onsemi.

Selection Notes

Select this component when 18-bit width and mixed latch/flip-flop functionality are required. Ensure the design accommodates the 56-pin TSSOP footprint. Verify that the system logic levels align with the specified input/output voltage thresholds for reliable signal integrity.

Part Context

This part belongs to the ABT logic family, designed for high-speed CMOS applications. Originally manufactured by Fairchild Semiconductor, it is now distributed under the onsemi brand. The device serves as a bridge between different speed domains in complex digital systems.

Replacement Considerations

Consult manufacturer datasheets for direct pin-compatible substitutes such as the SN74ABT16501. Verify electrical characteristics match before implementation.