74LVT16244MEA

Overview

The onsemi 74LVT16244MEA is a low-voltage 16-bit buffer and line driver featuring 3-STATE outputs, housed in a 48-lead Small Shrink Outline Package (SSOP). Designed for 2.7V to 3.6V VCC operation, it provides TTL interface capability to 5V systems. The device utilizes advanced BiCMOS technology for high-speed performance with low power dissipation. It includes four independent nibble-controlled groups of buffers. Key electrical parameters include a propagation delay of 1.2ns to 3.9ns at 3.3V, output drive currents of -32mA (source) and 64mA (sink), and an operating temperature range from -40°C to +85°C.

Feature Summary

• Nibble-controlled architecture allowing independent or combined 16-bit operation via shorted control pins
• TTL-compatible input/output interface enabling interoperability between 3.3V and 5V logic environments
• Power-up/down high-impedance state ensures glitch-free bus loading during initialization
• Live insertion and extraction permitted without causing bus current loading

Applications

• Memory address drivers
• Clock signal distribution
• Bus-oriented transmitter/receiver circuits

Procurement Notes

Verify the specific ordering suffix 'MEA' corresponds to the SSOP package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the specified 2.7V to 3.6V supply voltage range. Check for any lifecycle notices regarding obsolescence or last-time buy availability directly from the supplier.

Selection Notes

Select this component for applications requiring 16-bit data buffering with mixed 3.3V and 5V logic levels. The SSOP package is suitable for space-constrained designs needing surface-mount assembly. Consider the LVTH variant if bushold inputs are required to eliminate external pull-up resistors for unused lines. Evaluate propagation delay specifications against system timing requirements.

Part Context

This part belongs to the 74LVT logic family, characterized by low-voltage operation and BiCMOS fabrication. It is functionally compatible with the standard 74 series 16244 devices but optimized for lower power consumption. The device is manufactured using processes that support high-speed switching while maintaining robust ESD protection capabilities exceeding industry standards.

Replacement Considerations

The 74LVTH16244MEA is a functional alternative within the same package offering bushold inputs. Cross-reference with other manufacturers' 74LVT16244 equivalents ensuring identical pinout and electrical characteristics. Verify package dimensions match the MS48A SSOP specification for mechanical compatibility.

FAQ

Does the 74LVT16244MEA include bushhold inputs?

No, the 74LVT16244MEA does not include bushhold inputs. The bushhold feature is available only in the 74LVTH16244 variant.

How is the 16-bit functionality controlled?

The device is nibble-controlled with four independent groups. Control pins can be shorted together to enable full 16-bit operation across all buffers simultaneously.

What is the maximum output drive current?

The outputs can sink up to 64 mA and source up to -32 mA under recommended operating conditions.