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NXP Semiconductors SC16IS760IBS,128
- Part No.:
- SC16IS760IBS,128
- Manufacturer:
- NXP Semiconductors
- Category:
- Controllers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
SC16IS760IBS,128.pdf
- Description:
- IC UART I2C/SPI 24-HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,786
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Product details
Overview
SC16IS760IBS,128 from NXP Semiconductors is a single-channel UART IC with dual I²C-bus/SPI host interface, 64-byte TX/RX FIFOs, IrDA SIR support up to 1.152 Mbit/s, and eight programmable GPIOs - designed for protocol bridging between microcontrollers and RS-232/RS-485 peripherals in portable industrial gateways.
For engineers reviewing the SC16IS760IBS,128 datasheet, SC16IS760IBS,128 pinout, SC16IS760IBS,128 application, or SC16IS760IBS,128 equivalent, this device delivers high-speed SPI (15 Mbit/s), low-power sleep mode (<30 μA), automatic RS-485 direction control, and 16C450 register compatibility for rapid firmware porting.
Technical Context
The SC16IS760IBS,128 implements a full-duplex UART core with independent transmitter/receiver enable control, programmable baud rate generator (divisor range 1–65535), and dual-mode serial host interface selected via the I2C/SPI pin. Its register set mirrors the 16C450 architecture, enabling drop-in software reuse across legacy platforms.
It supports hardware flow control (auto RTS/CTS), software flow control (dual Xon/Xoff sets), and automatic RS-485 half-duplex driver direction management using RTS signal inversion. The integrated IrDA encoder/decoder operates at 1.152 Mbit/s SIR mode, distinct from SC16IS750's 115.2 kbit/s limit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | I²C-bus (400 kbit/s) or SPI (15 Mbit/s); mode selected by I2C/SPI pin logic level |
| FIFO depth | 64-byte transmit and receive buffers with programmable trigger levels for interrupt generation |
| IrDA SIR speed | Up to 1.152 Mbit/s - enables infrared data exchange compliant with IrDA 1.1 physical layer |
| GPIO count | 8 programmable I/O pins (GPIO0–GPIO7), configurable as general-purpose or modem control signals (DSR/DTR/CD/RI) |
| Supply voltage | 2.5 V or 3.3 V operation - supports mixed-voltage system integration without level shifters |
| Max baud rate | 5 Mbit/s in 16× clock mode - suitable for high-throughput serial telemetry and diagnostics |
| Sleep current | <30 μA at 3.3 V - extends battery life in handheld and remote sensor nodes |
Pinout & Package
HVQFN24 package (SOT616-3): 4 × 4 × 0.85 mm body, 24 terminals, exposed thermal pad requiring PCB ground connection for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Hardware reset input | Active-low asynchronous reset; initializes all registers per Table 4 and sets TX/RTS HIGH, IRQ HIGH via external pull-up |
| I2C/SPI | Interface select | Logic HIGH = I²C mode; LOW = SPI mode - determines function of SDA/SO, SCL/SCLK, CS/A0, SI/A1 pins |
| IRQ | Interrupt output | Open-drain active-low signal indicating pending interrupt (e.g., RX FIFO full, line error, GPIO change) |
| RTS | UART request-to-send | Active-low output used for auto RTS flow control or RS-485 driver direction control (with polarity inversion option) |
| GPIO0–GPIO3 | General-purpose I/O | Configurable digital inputs/outputs with internal active pull-ups; usable for status indication or peripheral control |
| GPIO4/DSR–GPIO7/RI | Modem signal I/O | Selectable via IOControl register bit 1 to serve as DSR/DTR/CD/RI - enables direct modem interface without external logic |
Key Features
| Feature | Design Value |
|---|---|
| Auto RS-485 direction control | RTS-driven automatic DE/RE management eliminates external transceiver control logic and timing-critical firmware delays |
| Backward-compatible register map | 16C450 register layout allows reuse of existing UART drivers and OS abstractions without modification |
| Dual Xon/Xoff software flow control | Independent transmit/receive Xon1/Xon2 and Xoff1/Xoff2 character sets prevent false resume on noise or partial packet loss |
| Programmable FIFO trigger levels | TLR register enables precise RX/TX interrupt thresholds - reduces CPU polling overhead in real-time systems |
| Low-power sleep mode | <30 μA quiescent current at 3.3 V enables always-on serial monitoring in energy-constrained edge devices |
Applications
| Industrial Serial Gateway | Portable Diagnostic Tool |
|---|---|
Use Scenario: Protocol translation between ARM-based PLC controller (I²C/SPI) and legacy RS-485 field devices (motor drives, sensors). IC Role / Device Role / Timing Role: UART bridge with automatic RS-485 direction control and 64-byte FIFO buffering to absorb burst traffic without host intervention. Use Value: Eliminates need for discrete level shifters, direction-control logic, and interrupt-intensive byte-by-byte handling - cuts BOM cost and firmware complexity. |
Use Scenario: Handheld medical device tester communicating with ECG monitors and infusion pumps via RS-232/RS-485 cables. IC Role / Device Role / Timing Role: Low-power UART interface with IrDA SIR support for wireless configuration sync and firmware updates. Use Value: Enables infrared pairing without Bluetooth stack overhead; 30 μA sleep current extends battery runtime beyond 12 months. |
| Factory Automation Node | Smart Energy Meter Interface |
Use Scenario: Edge node collecting Modbus RTU data from 12+ field instruments and forwarding via SPI to Wi-Fi SoC. IC Role / Device Role / Timing Role: Multi-drop RS-485 transceiver interface with auto-address detection and hardware flow control to prevent buffer overrun. Use Value: Guarantees deterministic latency under heavy bus load; 5 Mbit/s max baud supports high-resolution waveform capture. |
Use Scenario: AMI meter with optical port (IrDA) and RS-485 HAN interface communicating with home gateway and utility concentrator. IC Role / Device Role / Timing Role: Dual-interface UART managing simultaneous IrDA configuration and RS-485 meter reading with independent FIFOs. Use Value: Single-chip solution replaces discrete UART + IrDA PHY + GPIO expander - reduces PCB area by 42% vs. discrete implementation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar UART bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SC16IS750IBS | Same HVQFN24 package and GPIO set, but SPI clock limited to 4 Mbit/s and IrDA SIR capped at 115.2 kbit/s | Not suitable for high-speed infrared data transfer or fast SPI host interfaces requiring >4 Mbit/s throughput | Select SC16IS750IBS only when IrDA speed and SPI bandwidth requirements are lower - reduces cost where performance headroom is unnecessary |
| MAX3107ETE+ | 3.3 V only, no IrDA support, 128-byte FIFOs, SPI-only interface (no I²C), different register mapping | Lacks I²C compatibility and infrared capability; requires driver rewrite due to non-16C450 register structure | Choose MAX3107ETE+ if higher FIFO depth and SPI-only design are prioritized over software compatibility and IrDA functionality |
Compared with SC16IS750IBS and MAX3107ETE+, the SC16IS760IBS,128 uniquely combines 15 Mbit/s SPI, 1.152 Mbit/s IrDA SIR, and 16C450 register compatibility - making it optimal for firmware-portable, multi-protocol, battery-sensitive designs where both speed and interoperability matter.
Availability
SC16IS760IBS,128 is available at Aetrix Electronics and suitable for industrial serial gateways, portable diagnostic tools, factory automation nodes, smart energy meters, and RS-485/IrDA hybrid interfaces requiring stable component supply and long-term lifecycle assurance.
Supply support for SC16IS760IBS,128 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The SC16IS7xx family was designed to simplify serial protocol bridging in resource-constrained embedded systems - delivering UART functionality with minimal host CPU overhead, low power consumption, and seamless integration into I²C/SPI-based microcontroller ecosystems.
FAQ
What is the maximum SPI clock frequency supported by SC16IS760IBS,128?
The SC16IS760IBS,128 supports SPI clock speeds up to 15 Mbit/s - double the 4 Mbit/s limit of the SC16IS750IBS. This enables faster register access and bulk data transfers in high-throughput host systems, provided the SPI mode is configured as Mode 0 and the I2C/SPI pin is held LOW during initialization.
Does SC16IS760IBS,128 support true 16C450 register compatibility?
Yes, the SC16IS760IBS,128 maintains full backward compatibility with the industry-standard 16C450 register map, including identical offsets for THR, RHR, IER, FCR, LCR, and MCR. This allows existing UART drivers and operating system abstractions to operate without modification - significantly accelerating platform migration.
How does automatic RS-485 direction control work on SC16IS760IBS,128?
The SC16IS760IBS,128 uses the RTS pin to automatically manage RS-485 driver enable/disable timing. When auto RTS is enabled via EFR[6], RTS asserts before transmission and deasserts after the final stop bit - eliminating race conditions and external control logic. Polarity inversion is configurable via the Extra Feature Register.
Can SC16IS760IBS,128 operate from a 2.5 V supply?
Yes, the SC16IS760IBS,128 is fully specified for 2.5 V and 3.3 V operation. Internal regulators and I/O structures are optimized for both voltages - with recommended external pull-up resistors of 1.5 kΩ for 2.5 V and 1 kΩ for 3.3 V on the open-drain IRQ pin to ensure proper logic levels and rise time.
What is the function of the exposed thermal pad on the HVQFN24 package of SC16IS760IBS,128?
The exposed center pad on the SC16IS760IBS,128 HVQFN24 package is electrically connected to VSS and must be soldered to a PCB ground plane using thermal vias. This provides critical thermal dissipation, improves electrical noise immunity, and ensures stable operation under sustained 5 Mbit/s UART transmission loads.
SC16IS760IBS,128 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 24-VFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- RS232, RS485
- Function:
- Controller
- Interface:
- I2C, SPI, UART
- Standards:
- -
- Voltage - Supply:
- 2.5V, 3.3V
- Current - Supply:
- 6mA
- Operating Temperature:
- -40°C ~ 95°C
- Supplier Device Package:
- 24-HVQFN (4x4)
- Grade:
- -
- Qualification:
- -
SC16IS760IBS,128 FAQ
1.How can I place an order for SC16IS760IBS,128 through Aetrix?
Please submit a Request for Quotation (RFQ) for SC16IS760IBS,128 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SC16IS760IBS,128 reliable?
The price and inventory of SC16IS760IBS,128 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC16IS760IBS,128 is usually 5 days.
3.What payment methods are accepted for SC16IS760IBS,128?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC16IS760IBS,128 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC16IS760IBS,128?
SC16IS760IBS,128 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC16IS760IBS,128 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SC16IS760IBS,128?
For technical support, including SC16IS760IBS,128 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC16IS760IBS,128 requirements.
6.How does Aetrix verify that SC16IS760IBS,128 is sourced from the original manufacturer or authorized distributors?
All SC16IS760IBS,128 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SC16IS760IBS,128 meets industry standards.
7.What is the process for return or replacement of SC16IS760IBS,128?
All SC16IS760IBS,128 units undergo pre-shipment inspection (PSI). If there is an issue with SC16IS760IBS,128, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SC16IS760IBS,128 part is unused and in its original packaging.
Return procedure for SC16IS760IBS,128:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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