LTC1545CG#PBF

Drivers, Receivers, Transceivers Overview

The LTC1545CG#PBF is a software-selectable multiprotocol transceiver housed in a 36-lead SSOP package. It integrates five drivers and five receivers to support RS232, RS449, EIA530, EIA530-A, V.35, V.36, and X.21 protocols. Operating from a single 5V supply with an external charge pump, it provides TTL-level logic inputs and CMOS-level receiver outputs. The device features fail-safe receiver operation and a no-cable mode that reduces supply current below 200µA when disconnected.

Drivers, Receivers, Transceivers Feature Summary

• Software-configurable protocol selection via M0, M1, and M2 pins
• Integrated five-driver and five-receiver architecture for complete serial ports
• Fail-safe receiver design ensures logic high output during floating or shorted input conditions
• Automatic no-cable mode disables internal circuitry to minimize power consumption

Drivers, Receivers, Transceivers Applications

• Data networking equipment requiring multi-standard interface compatibility
• Channel Service Unit/Service Data Unit (CSU/DSU) implementations
• Data routers supporting diverse legacy and modern serial standards

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix CG indicates commercial temperature range operation. Confirm the #PBF designation ensures lead-free compliance and halogen-free status as per manufacturer specifications. Cross-reference the 36-lead SSOP physical dimensions against target PCB footprint requirements before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing interfaces requiring dynamic switching between multiple serial standards without hardware changes. Ensure the system includes the LTC1543 charge pump IC to generate necessary VDD and VEE voltages. Verify that the application requires the specific driver/receiver count provided by this multiprotocol solution.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC1545 series of multiprotocol transceivers designed to replace discrete protocol-specific hardware. It functions as the core control signal generator alongside the LTC1543 data signal generator. The CG variant specifies the commercial operating temperature range suitable for general industrial applications.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.