SC16C750IB64,128

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC16C750IB64,128 is a Universal Asynchronous Receiver/Transmitter (UART) featuring 64-byte transmit and receive FIFOs. It supports data rates up to 3 Mbit/s at 5 V, 2 Mbit/s at 3.3 V, and 1 Mbit/s at 2.5 V. The device operates within an industrial temperature range of -40 °C to +85 °C and is housed in a 64-lead LQFP package measuring 10 × 10 × 1.4 mm. It maintains pin compatibility with industry-standard TL16C450/550 devices.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Provides 64-byte transmit and receive FIFOs with programmable trigger levels for efficient data handling.
• Supports automatic hardware flow control via RTS and CTS signals to manage data throughput.
• Includes internal loop-back capability for on-board diagnostics and fault isolation.
• Features a sleep mode to reduce power consumption when the device is idle.

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• High-speed modem interfaces requiring fast data processing.
• Shared network environments needing reduced CPU bandwidth usage.
• Industrial serial communication systems operating in wide temperature ranges.

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct package type and lead-free status. Confirm that the LQFP64 variant matches the required board layout dimensions. Check for any updated product data sheets that may supersede the Rev. 04 document provided.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when existing 16C450 software compatibility is required alongside enhanced FIFO performance. Ensure the system design accommodates the 64-pin LQFP footprint. Verify that the host processor can support the necessary register programming for FIFO triggers and interrupt configurations.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the SC16C750 family of UARTs designed as upward solutions to standard 16C550 devices. It offers increased buffer capacity compared to the 16-byte FIFOs found in predecessors. The IB64 designation specifically identifies the plastic low profile quad flat package version suitable for surface mount applications.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The SC16C750 is pin compatible with TL16C450, TL16C550, ST16C450, ST16C550, PC16C450, and PC16C550. Direct substitution is possible if the application requires only the basic 16C550 feature set without utilizing the enhanced 64-byte FIFO or auto-flow control features.