74LCX16245MTD

Overview

The onsemi 74LCX16245MTD is a dual bus transceiver from the 74LCX logic family, designed for low-voltage applications. It features two independent 16-bit non-inverting transceivers housed in a 48-pin TSSOP package. The device operates within a supply voltage range of 2 V to 3.6 V and supports LVTTL or TTL input levels with LVCMOS output levels. Key electrical parameters include a maximum propagation delay of 5.2 ns at 50 pF load, and output drive currents of ±24 mA. It functions reliably across an operating temperature range of -40 °C to +85 °C.

Feature Summary

• Dual 16-bit bidirectional data path architecture
• Bus hold functionality to maintain signal states
• LVTTL/TTL compatible input interface
• LVCMOS output compatibility

Applications

• High-density data bus systems
• Memory module interfacing
• Portable equipment communication links

Procurement Notes

Verify the specific suffix against official documentation, as variations such as MTDX indicate reel packaging while other suffixes may denote tape-and-reel or cut-tape formats. Confirm current production status, as certain variants like the GX version are obsolete. Ensure moisture sensitivity level requirements align with assembly timelines.

Selection Notes

Select this component when designing systems requiring 32-bit wide data transfers between LVTTL and LVCMOS domains. The 74LCX series offers lower power consumption compared to older CMOS families. Verify that the 48-pin TSSOP footprint fits the PCB layout constraints and that the ±24 mA drive capability meets the bus loading requirements.

Part Context

This part belongs to the 74LCX family of low-voltage CMOS logic devices. Similar components include the 74LCX16245GX in an FBGA package and the 74LCXH16245MTDX variant. These devices share core logical functionality but differ in physical packaging and manufacturing revisions.

Replacement Considerations

The 74LCX16245MTDX serves as a direct functional substitute with identical pinout and specifications. Other potential replacements include the 74LCX16245GX, though it utilizes a different 54-FBGA package.