74LVT16244MTDX

Overview

The onsemi 74LVT16244MTDX is a low-voltage 16-bit buffer and line driver with 3-state outputs, manufactured using advanced BiCMOS technology. It operates within a supply voltage range of 2.7V to 3.6V and supports TTL interface capabilities for 5V systems. The device features nibble-controlled operation with four independent groups of 4-bit drivers. It provides an output drive capability of -32mA at high levels and 64mA at low levels. Propagation delays are specified between 1.2ns and 3.9ns depending on the voltage condition. The component is housed in a 48-lead Thin Shrink Small Outline Package (TSSOP).

Feature Summary

• Supports live insertion and extraction while preventing bus current loading.
• Provides glitch-free power-up/down states ensuring high impedance during transitions.
• Features bushold data inputs that eliminate the need for external pull-up resistors.

Applications

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

Procurement Notes

Verify the specific ordering suffix 'X' confirms tape and reel packaging as indicated in the datasheet notes. Confirm the manufacturer origin, noting the document references Fairchild Semiconductor history prior to onsemi acquisition. Ensure compliance with RoHS standards and check for any environmental declarations required by your supply chain protocols before finalizing procurement.

Selection Notes

Select this component when a 16-bit non-inverting buffer with 3-state control is required for low-voltage logic applications. It is suitable for interfacing 3.3V systems with 5V environments due to its input/output tolerance. Consider the TSSOP-48 package for surface mount requirements. Verify if the bushhold feature is necessary; if so, ensure the LVTH variant is selected or confirm compatibility with the standard LVT version's external resistor needs.

Part Context

This part belongs to the 74LVT series of low-voltage CMOS logic devices. It functions similarly to 5V ABT technology but maintains lower power dissipation. The device is functionally compatible with the standard 74 series 16244 architecture. It is designed for general-purpose digital buffering and driving tasks in consumer electronics and industrial equipment operating at 3.3V logic levels.

Replacement Considerations

The 74LVTH16244MTDX serves as a functional substitute offering identical electrical characteristics with the addition of bushold inputs. Other packages such as SSOP (MEA) or FBGA (G) contain the same core logic but differ in physical form factor. Verify pinout compatibility and thermal performance when substituting across different package types.

FAQ

Does the 74LVT16244MTDX include bushhold inputs?

No, the 74LVT16244 does not include bushhold inputs. External pull-up resistors are required to hold unused inputs. The bushhold feature is available only in the 74LVTH16244 variant.

How is the 16-bit operation controlled?

The device is nibble-controlled, meaning it has four independent groups of 4-bit drivers. Individual 3-state control inputs can be shorted together to enable full 16-bit operation.

What is the ESD protection rating for this device?

The device offers ESD protection exceeding 2000V via the Human-Body Model, 200V via the Machine Model, and 1000V via the Charged-Device Model.