74AC74MTCX

Overview

The Fairchild Semiconductor 74AC74MTCX is a dual D-type positive edge-triggered flip-flop housed in a 16-lead TSSOP package. It features asynchronous Set and Clear inputs, along with complementary Q and Q outputs. The device supports a supply voltage range of 2V to 6V and operates within a temperature range of -40°C to +85°C. Outputs are capable of sourcing and sinking 24mA. The AC series offers high-speed performance with reduced power consumption compared to earlier logic families.

Feature Summary

• Dual D-type flip-flops with positive edge triggering
• Asynchronous Set and Clear inputs independent of clock
• Complementary Q and Q outputs for versatile logic applications

Applications

• Parallel data storage registers
• Shift register construction
• Frequency division circuits

Procurement Notes

Verify the specific manufacturer marking on the component body against Fairchild or ON Semiconductor documentation, as ownership transitions occurred. Confirm the TSSOP-16 package dimensions match JEDEC MO-153 standards. Ensure the part number suffix aligns with the intended tape-and-reel or tube packaging configuration required for your assembly process.

Selection Notes

Select this component when a compact dual flip-flop solution is required for low-voltage digital systems. The TSSOP package provides space efficiency for dense PCB layouts. Consider the ACT variant if TTL-compatible input thresholds are necessary for interfacing with legacy logic levels, whereas the AC series optimizes for lower power dissipation at higher speeds.

Part Context

This component belongs to the 74AC logic family, known for CMOS technology that delivers high speed with low static power consumption. The 'MTC' suffix denotes the Thin Shrink Small Outline Package (TSSOP), which is widely used in portable electronics and consumer devices where board space is limited. The 'X' typically indicates a specific reel size or manufacturing lot code.

Replacement Considerations

Direct pin-compatible substitutes include the 74ACT74MTCX for TTL input compatibility and the 74HC74MTCX for standard HC speed/power characteristics. Other manufacturers such as ON Semiconductor and STMicroelectronics produce equivalent 74AC74 parts in identical packages.