TC74LCX240FT(EL)

Overview

The TC74LCX240FT(EL) is a dual 4-bit bus driver/transceiver manufactured by Toshiba Semiconductor and Storage. It features inverted outputs and operates within a supply voltage range of 1.65V to 3.6V. The device utilizes a 20-TSSOP package with a width of 4.40mm. Key electrical parameters include a maximum propagation delay of 8.5ns at 3.3V with a 50pF load, output drive currents of 24mA for both high and low states, and a static current of 10µA. It supports a clock frequency of up to 150MHz and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides dual 4-bit bidirectional data transmission capability with inverted logic outputs.
• Operates effectively in low-voltage environments ranging from 1.65V to 3.6V.
• Features high-speed signal processing with a maximum propagation delay of 8.5ns under standard loading conditions.
• Delivers robust output drive strength of 24mA to ensure signal integrity.

Applications

• High-speed data bus interfaces in portable electronic devices
• Memory module address and data line buffering
• Signal translation between different voltage domains in system-on-chip architectures

Procurement Notes

Verify the specific suffix (EL) against the manufacturer's latest documentation to confirm package dimensions and pinout compatibility. Ensure that the sourcing channel provides valid traceability for this component, as availability may vary due to lifecycle status changes. Cross-reference the datasheet revision date to guarantee alignment with current manufacturing specifications before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring dual 4-bit bus driving with inverted functionality in low-power applications. It is suitable for designs needing operation below 3.6V while maintaining high-speed performance. Consider the 20-TSSOP footprint for space-constrained PCB layouts. Evaluate the 24mA drive capability against the connected load requirements to ensure adequate signal margins without excessive power consumption.

Part Context

This part belongs to the 74LCX series of CMOS logic integrated circuits, which are designed for low-voltage operation. The LCX family offers improved speed and lower power consumption compared to older LVC or LVX counterparts. As a bus driver, it facilitates efficient data transfer between components in complex digital systems, serving as a critical interface element in modern consumer electronics and industrial control hardware.

Replacement Considerations

Direct substitutes include the TC74LCX240FTFTR and TC74LCX240FTFCT. Verify pin-to-pin compatibility and identical electrical characteristics before substitution. Ensure the replacement maintains the same 20-TSSOP package form factor and inverted output configuration to avoid circuit redesign.

FAQ

What is the logic polarity of the TC74LCX240FT(EL) outputs?

The outputs are inverted relative to the inputs, functioning as a dual 4-bit inverting bus driver/transceiver.

Does this component support bidirectional data flow?

Yes, as a transceiver, it allows data to flow in either direction depending on the control signal state.