NXP Semiconductors SC16IS760IBS,157

Overview

SC16IS760IBS,157 from NXP Semiconductors is a single-channel high-performance UART with I²C-bus or SPI slave interface, supporting up to 5 Mbit/s data rate, 64-byte TX/RX FIFOs, and IrDA SIR at 1.152 Mbit/s. It integrates 8 programmable GPIOs and operates from 2.5 V or 3.3 V in industrial temperature range (−40 °C to +95 °C), enabling protocol conversion between microcontrollers and RS-232/RS-485 transceivers in space-constrained embedded systems.

For engineers reviewing the SC16IS760IBS,157 datasheet, SC16IS760IBS,157 pinout, SC16IS760IBS,157 application, or SC16IS760IBS,157 equivalent, key selection considerations include SPI clock speed (15 Mbit/s), IrDA SIR capability (1.152 Mbit/s), GPIO count (8 pins), FIFO depth (64 bytes), and HVQFN24 package compatibility with thermal pad grounding requirements.

Technical Context

The SC16IS760IBS,157 implements a register-compatible 16C450 UART core with enhanced FIFO control, auto hardware flow control (RTS/CTS), and software flow control using programmable Xon/Xoff characters. Its dual-interface architecture supports I²C-bus (400 kbit/s) or SPI (15 Mbit/s, Mode 0) as slave only, with interface selection via the I2C/SPI pin.

It features automatic RS-485 driver direction control via RTS, built-in IrDA encoder/decoder, and independent enable/disable of transmitter/receiver circuits. Sleep current is under 30 µA at 3.3 V, and all internal registers reset to defined states upon hardware, power-on, or software reset.

Key Specifications

Pinout & Package

The SC16IS760IBS,157 is housed in an HVQFN24 package (4 mm × 4 mm × 0.85 mm) with exposed thermal pad requiring PCB ground connection for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar UART bridge applications.

Compared with SC16IS750IBS, the SC16IS760IBS,157 delivers 3.75× faster SPI throughput and 10× higher IrDA speed; versus MAX3107ETJ+, it offers larger FIFO, IrDA integration, and guaranteed 2.5 V operation - making it optimal for compact, low-power, infrared-capable industrial bridges.

Availability

SC16IS760IBS,157 is available at Aetrix Electronics and suitable for industrial serial gateways, portable diagnostic tools, cellular data terminals, smart meter communication modules, and RS-485-based factory automation systems requiring stable component supply across long production lifecycles.

Supply support for SC16IS760IBS,157 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in interface ICs and embedded processing.

The SC16IS760IBS,157 belongs to NXP's SC16IS7xx UART bridge family, designed specifically to simplify microcontroller-to-legacy-serial interfacing in space- and power-constrained embedded systems.

FAQ

What is the maximum SPI clock speed supported by the SC16IS760IBS,157?

The SC16IS760IBS,157 supports SPI clock speeds up to 15 Mbit/s in Mode 0. This is a key differentiator from the SC16IS750IBS (4 Mbit/s) and enables high-bandwidth communication with host processors. The 15 Mbit/s capability allows efficient transfer of UART data and register reads/writes without becoming a bottleneck in data-intensive applications like firmware updates or telemetry streaming. Always verify signal integrity and setup/hold timing margins at this speed in your PCB layout.

Does the SC16IS760IBS,157 support IrDA communication, and at what speed?

Yes, the SC16IS760IBS,157 includes a built-in IrDA encoder and decoder supporting SIR (Serial Infrared) at up to 1.152 Mbit/s. This is double the 115.2 kbit/s limit of the SC16IS750IBS. The SC16IS760IBS,157 handles pulse shaping, bit stuffing, and NRZI encoding/decoding internally, reducing host CPU load. Note that 1.152 Mbit/s SIR is not compatible with IrDA MIR at the same speed - refer to NXP application notes for proper implementation guidance.

How many GPIO pins does the SC16IS760IBS,157 provide, and what are their functions?

The SC16IS760IBS,157 provides eight programmable GPIO pins (GPIO0–GPIO7). GPIO0–GPIO3 are dedicated general-purpose I/Os. GPIO4–GPIO7 can function either as general-purpose I/Os or as modem control signals (DSR, DTR, CD, RI) depending on register configuration. All eight pins support input change-of-state interrupts and can be individually configured for direction, pull-up/down, and interrupt enable - enabling flexible peripheral expansion without additional I/O expanders.

What package type and thermal requirements apply to the SC16IS760IBS,157?

The SC16IS760IBS,157 uses the HVQFN24 package (4 mm × 4 mm × 0.85 mm) with an exposed thermal pad on the underside. This pad must be soldered to a PCB copper area connected to ground for thermal dissipation and electrical stability. NXP specifies that both VSS pins and the center pad must connect to system ground. Incorporating thermal vias beneath the pad is recommended to enhance heat conduction into inner layers or the board backside, especially in thermally demanding environments.

Is the SC16IS760IBS,157 register-compatible with legacy UARTs?

Yes, the SC16IS760IBS,157 features an internal register set fully backward-compatible with the industry-standard 16C450 UART. This compatibility allows existing UART drivers, initialization routines, and interrupt service code to be reused or ported with minimal modification. Software written for 16C450-based systems can typically run unchanged on the SC16IS760IBS,157, significantly accelerating development and reducing qualification effort for legacy migration projects.