74VCX162839MTDX

Shift Registers Overview

The Fairchild Semiconductor 74VCX162839MTDX is a low voltage, 16-bit dual supply translating transceiver designed for asynchronous communication between buses operating at different supply voltages. It provides true signal translation capabilities with 3-state outputs. The device features a higher potential rail (VCCA) and a lower potential rail (VCCB), enabling interface between varying logic levels while supporting live insertion and withdrawal.

Shift Registers Feature Summary

• Dual supply design facilitates signal translation between busses ranging from 1.65V to 3.6V
• Supports live insertion and withdrawal operations without damage
• Utilizes patented Quiet Series noise and EMI reduction circuitry
• Provides static drive currents of ±24 mA at 3.0V VCC

Shift Registers Applications

• Bidirectional interface between busses at different supply voltages
• Asynchronous communication systems requiring signal translation
• Low voltage bus architectures involving mixed voltage domains

Shift Registers Procurement Notes

Verify the specific suffix 'MTDX' against official Fairchild or onsemi documentation to confirm package type and tape/reel specifications. Ensure compatibility with required supply voltage ranges (VCCA 2.3V-3.6V, VCCB 1.65V-2.7V). Confirm that VCCB remains less than or equal to VCCA for proper operation. Check for RoHS compliance status in current datasheets.

Shift Registers Selection Notes

Select this component when interfacing between 1.8V to 2.5V busses and higher potential busses up to 3.3V. Consider its dual-supply architecture for applications requiring true signal translation rather than simple buffering. Evaluate the need for EMI reduction features provided by the Quiet Series technology. Ensure the system supports the specified static drive requirements and latchup performance exceeding 300 mA.

Shift Registers Part Context

The 74VCX162839 belongs to the VCX family of low voltage translating transceivers. It is functionally similar to other 16-bit dual supply translators like the 74VCX163245 but tailored for specific translation directions or pin configurations. This series addresses the growing need for interoperability in mixed-voltage digital systems common in portable and battery-operated devices.

Shift Registers Replacement Considerations

The 74VCX163245MTD is listed as a functionally compatible alternative within the same product family. Verify pin-to-pin compatibility and specific translation direction requirements before substitution. Ensure the replacement part meets the same voltage and drive current specifications.