LTC1344ACG

Overview

The LTC1344ACG is a software-selectable cable terminator integrated circuit manufactured by Analog Devices Inc. It features six independent multiprotocol cable terminators designed to support various serial interface standards including RS232, RS422, RS485, and V.35. The device operates within a positive supply voltage range of 4.75V to 5.25V and a negative supply voltage range of -5V ± 5%. It is housed in a 24-lead plastic SSOP package with dimensions of 0.209 inches (5.30mm) width. The component supports an operating temperature range of 0°C to 70°C.

Feature Summary

• Software-selectable termination for multiple serial protocols
• Six independent configurable cable terminators
• Data bus latch feature for shared select lines
• Outputs remain high impedance when power is off

Applications

• DTE or DCE Multiprotocol Serial Interface
• Data Networking Equipment
• CSU and DSU Systems
• Data Routers

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Ensure compatibility with system voltage requirements and logic levels before procurement. Confirm RoHS compliance status if required by local regulations.

Selection Notes

Select this component for designs requiring flexible serial port termination without mechanical switching. Compare mode selection tables with similar parts like the LTC1344 to ensure protocol compatibility. Verify that the 24-lead SSOP package fits the PCB layout constraints.

Part Context

The LTC1344ACG belongs to the LTC1344 family of multiprotocol serial interface components. It functions as a termination controller often paired with transceivers such as the LTC1543 and LTC1544 to form complete serial ports. The 'CG' suffix indicates the commercial temperature grade and SSOP package variant.

Replacement Considerations

LTC1344ACG#PBF is listed as a direct replacement option.