SC16IS752IBS,157

Controllers Overview

The SC16IS752IBS,157 is a dual-channel UART interface IC manufactured by NXP Semiconductors. It bridges I2C-bus or SPI interfaces to two independent full-duplex UART channels with baud rates up to 5 Mbit/s in 16x clock mode. The device features 64-byte transmit and receive FIFOs, built-in IrDA SIR support up to 115.2 kbit/s, and eight programmable GPIO pins. Operating at 2.5 V or 3.3 V, it supports industrial temperatures from -40°C to +95°C. Packaged in HVQFN32 (5x5 mm), it offers backward compatibility with the 16C450 register set.

Controllers Feature Summary

• Dual full-duplex UART channels with selectable I2C or SPI host interface
• 64-byte FIFOs for both transmitter and receiver to reduce software overhead
• Built-in IrDA encoder/decoder supporting SIR speeds up to 115.2 kbit/s
• Eight additional programmable I/O pins and automatic RS-485 direction control

Controllers Applications

• Factory automation and process control systems
• Portable and battery-operated devices requiring low power consumption
• Cellular data devices and hand-held terminals

Controllers Procurement Notes

Verify the ordering suffix

Controllers Selection Notes

Select this component when a microcontroller requires expansion of serial ports via I2C or SPI. Ensure the host system supports the selected interface mode through the I2C/SPI pin configuration. Verify that the required baud rate does not exceed 5 Mbit/s and that the operating voltage matches the 2.5 V or 3.3 V supply rails available in the design.

Controllers Part Context

This part belongs to the SC16IS752 family, which also includes single-channel variants like the SC16IS750 and high-speed SPI variants like the SC16IS762. The SC16IS752 specifically targets applications needing two UART channels without the higher SPI clock speed of the 762 series. It shares the same package options and functional core as the 762, differing primarily in maximum SPI frequency limits.

Controllers Replacement Considerations

The SC16IS762IBS is functionally compatible but supports higher SPI speeds. Single-channel equivalents include the SC16IS750IBS. Legacy replacements must match the 16C450 register compatibility requirement.