74LCX2244MTC

Overview

The onsemi 74LCX2244MTC is an octal buffer and line driver belonging to the LCX logic family. It features eight non-inverting inputs and outputs housed in a TSSOP-20 surface-mount package. The device operates within a supply voltage range of 2.0 V to 3.6 V, providing high impedance TTL-compatible inputs and 5V tolerant outputs. Key electrical specifications include a maximum static current of 10 µA, output drive currents of ±24 mA, and propagation delays of 9 ns at 3.3 V or 7 ns at 5 V. It supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides signal buffering and isolation for digital data lines with non-inverting logic functionality.
• Features 5V tolerant I/O capabilities, allowing safe interfacing between low-voltage logic and 5V systems.
• Includes three-state outputs controlled by separate enable inputs to manage bus traffic effectively.
• Designed with low static power consumption and high electrostatic discharge (ESD) protection.

Applications

• Memory address and data bus driving in portable electronic devices
• Clock distribution and buffering in low-voltage digital circuits
• Bus-oriented transceiver applications requiring level shifting
• High-density memory modules utilizing low-voltage interfaces

Procurement Notes

Verify the specific suffix 'MTC' corresponds to the TSSOP-20 tube packaging configuration required for your assembly process. Confirm that the component meets RoHS compliance standards if environmental regulations apply to your manufacturing facility. Ensure input voltage levels remain within specified limits to prevent damage to the internal circuitry during operation.

Selection Notes

Select this component when designing systems requiring octal buffering with 5V tolerance in a compact surface-mount footprint. It is suitable for replacing older HC or HCT series buffers where lower power consumption and wider voltage compatibility are necessary. Consider the propagation delay characteristics relative to your system clock speeds to ensure signal integrity is maintained across the bus.

Part Context

This part belongs to the 74LCX series of low-voltage CMOS logic devices manufactured by onsemi. The LCX family is engineered to provide performance comparable to earlier LVC and AC families while offering superior power efficiency. The octal configuration allows for efficient management of wide data buses in space-constrained printed circuit board layouts.

Replacement Considerations

Direct pin-to-pin replacements may include the MM74HC2244MTC or SN74LVC2244APWR, provided voltage tolerances and drive strengths align with the original design requirements. Verify that substitute components support the same 5V tolerant input specifications to maintain compatibility with existing upstream logic sources.