74LVCH32244AEC,557

Overview

The NXP USA Inc. 74LVCH32244AEC,557 is a 32-bit non-inverting buffer and line driver featuring 5 V tolerant inputs and outputs. It operates within a supply voltage range of 1.2 V to 3.6 V and utilizes an LFBGA96 package (SOT536-1). The device incorporates eight active-low output enable inputs to control three-state operation. Key electrical parameters include a typical propagation delay of 3.0 ns at 3.3 V with a 50 pF load, and input/output leakage currents limited to ±5 μA at 5.5 V. It supports bus-hold functionality on data inputs and complies with JEDEC standards.

Feature Summary

• Provides 5 V tolerance for interfacing between 3.3 V and 5 V logic systems
• Features bus-hold circuitry on all data inputs to eliminate external pull-up requirements
• Utilizes low-inductance multiple power and ground pins to minimize noise and ground bounce
• Supports direct interface with TTL levels across the specified operating temperature range

Applications

• Mixed 3.3 V and 5 V memory bus buffering
• High-speed data line driving in portable equipment
• Clock distribution and signal buffering in industrial control systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package variant. Check current product status as availability may vary. Ensure compliance with RoHS directives relevant to your region. Validate that the moisture sensitivity level meets your assembly process requirements before procurement.

Selection Notes

Select this component when designing mixed-voltage interfaces requiring high-density packaging. The 32-bit configuration reduces board space compared to lower-bit alternatives. Ensure the application environment stays within the -40 °C to +85 °C operating range. Verify that the 5 V input tolerance aligns with the source logic levels. Consider the LFBGA96 footprint constraints during PCB layout planning.

Part Context

This part belongs to the 74LVCH series of low-voltage CMOS logic devices. It serves as a high-performance alternative to standard TTL families, offering superior speed and lower power consumption. The 74LVCH32244A variant specifically addresses the need for wide bus buffering in compact form factors common in modern electronics.

Replacement Considerations

Consult official replacement guides for cross-reference options. Verify pin compatibility and electrical specifications match exactly. Ensure any substitute maintains the same 5 V tolerance and package dimensions.