My Inquiry
My Account
NXP Semiconductors SC16IS752IPW,128
- Part No.:
- SC16IS752IPW,128
- Manufacturer:
- NXP Semiconductors
- Category:
- Controllers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SC16IS752IPW,128.pdf
- Description:
- IC DUAL UART 64BYTE 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:13,451
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SC16IS752IPW,128 from NXP Semiconductors is a dual-channel UART IC with I²C/SPI interface, 64-byte TX/RX FIFOs, IrDA SIR support up to 115.2 kbit/s, and 8 programmable GPIOs - used for protocol bridging between microcontrollers and RS-232/RS-485 peripherals in portable industrial devices.
For engineers reviewing the SC16IS752IPW,128 datasheet, SC16IS752IPW,128 pinout, SC16IS752IPW,128 application, or SC16IS752IPW,128 equivalent, key selection factors include dual UART channel independence, 5 Mbit/s max baud rate, TSSOP28 package compatibility, and hardware/software flow control implementation in battery-constrained embedded systems.
Technical Context
The SC16IS752IPW,128 implements two fully independent UART channels sharing a single I²C-bus (up to 400 kbit/s) or SPI interface (max 4 Mbit/s), with register-level backward compatibility to the 16C450 standard. Each channel supports programmable character formatting (5–8 bits, parity, stop bits), line break detection, and internal loopback mode.
It integrates auto hardware flow control (RTS/CTS per channel), auto software flow control (Xon/Xoff with dual-character support), automatic RS-485 direction control via RTS, and sleep current <30 μA at 3.3 V. The device operates from 2.5 V or 3.3 V across –40 °C to +95 °C and features 5 V tolerant inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | I²C-bus (Fast-mode, 400 kbit/s) or SPI (Mode 0, 4 Mbit/s); selected by I2C/SPI pin |
| UART Channels | Dual independent full-duplex UARTs (Channel A and Channel B) |
| FIFO Depth | 64 bytes transmit and receive FIFO per channel; reduces host CPU interrupt load |
| Max Baud Rate | 5 Mbit/s in 16× clock mode; enables high-speed serial communication with legacy or custom peripherals |
| IrDA Support | Built-in IrDA SIR encoder/decoder supporting up to 115.2 kbit/s (SC16IS752 variant) |
| GPIO Pins | 8 programmable I/O pins (GPIO0–GPIO7), configurable as modem control signals or general-purpose I/O |
| Supply Voltage | 2.5 V or 3.3 V operation; 5 V tolerant digital inputs simplify level-shifting design |
| Operating Temp | –40 °C to +95 °C industrial range; validated for factory automation and handheld equipment |
Pinout & Package
TSSOP28 package (SOT361-1), 4.4 mm body width, lead pitch 0.65 mm; thermally enhanced for low-power portable applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RTSA / RTSB | UART request-to-send output (active LOW) | Controls data transmission readiness per channel; supports Auto-RTS flow control when enabled |
| CTSA / CTSB | UART clear-to-send input (active LOW) | Enables Auto-CTS hardware flow control; halts TX when inactive |
| TXA / TXB, RXA / RXB | UART serial data I/O | Full-duplex channel A/B data paths; compatible with RS-232/RS-485 transceivers |
| IRQ | Open-drain interrupt output (active LOW) | Signals 7 prioritized interrupt sources including FIFO status, errors, and GPIO changes |
| I2C/SPI | Interface select input | Logic HIGH = I²C mode; logic LOW = SPI mode; configures pin functions at power-up |
| GPIO0–GPIO7 | Programmable I/O or modem control | Configurable via IOControl register; supports DTR/DSR/RI/CD functions or general I/O |
| RESET | Hardware reset input (active LOW) | Resets all internal registers except DLL/DLH/XON/XOFF; initializes TX/RX FIFOs and I/O direction |
| SCL/SCLK, SDA, CS/A0, SI/A1, SO | I²C or SPI bus signals | Shared physical pins with multiplexed function; pin roles determined by I2C/SPI pin state |
Key Features
| Feature | Design Value |
|---|---|
| Backward-compatible register set | Fully matches 16C450 addressing and bit definitions - enables drop-in software porting from legacy platforms |
| Auto RS-485 direction control | RTS signal automatically manages driver enable/disable timing - eliminates external logic for half-duplex bus control |
| Independent FIFO trigger levels | Programmable RX/TX interrupt thresholds per channel - optimizes interrupt frequency and buffer utilization |
| Low-power sleep mode | <30 μA sleep current at 3.3 V with EFR[4] and IER[4] enabled - extends battery life in always-on portable devices |
| Dual Xon/Xoff software flow control | Supports two distinct Xon/Xoff character pairs per channel - prevents false flow control triggers in noisy environments |
| 5 V tolerant inputs | All digital inputs accept 5 V logic levels while operating at 2.5 V or 3.3 V - simplifies mixed-voltage system integration |
Applications
| Industrial Serial Gateway | Portable Diagnostic Tool |
|---|---|
|
Use Scenario: Integrating legacy RS-232 field instruments into a modern I²C-based PLC controller. IC Role / Device Role / Timing Role: Dual UART bridges I²C master to two independent serial sensors, handling simultaneous polling and command-response cycles. Use Value: Eliminates need for separate microcontroller per sensor; 64-byte FIFOs absorb burst traffic without host intervention. |
Use Scenario: Handheld medical device communicating with multiple Bluetooth-to-serial adapters and wired ECG modules. IC Role / Device Role / Timing Role: SC16IS752IPW,128 acts as central serial concentrator, managing concurrent diagnostic data streams over UART A/B. Use Value: Sleep current <30 μA extends battery runtime; IrDA SIR enables optical firmware updates without cables. |
| Factory Automation HMI | Smart Energy Meter Interface |
|
Use Scenario: Touchscreen HMI panel connecting to motor drives (RS-485) and barcode scanners (RS-232) simultaneously. IC Role / Device Role / Timing Role: SC16IS752IPW,128 provides isolated UART A/B with automatic RS-485 direction control and hardware flow control. Use Value: Auto RTS/CTS prevents data loss during high-throughput drive parameter uploads; GPIOs monitor scanner presence. |
Use Scenario: Two-way AMI meter using RS-485 for utility-side communication and UART for local IR port diagnostics. IC Role / Device Role / Timing Role: SC16IS752IPW,128 serves as dual-interface bridge: RS-485 channel for DLMS/COSEM, UART channel for IrDA SIR maintenance. Use Value: Single-chip solution replaces discrete UART + level shifter + IrDA PHY; TSSOP28 footprint fits compact meter PCB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual UART bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SC16IS762IPW | Supports SPI up to 15 Mbit/s and IrDA SIR up to 1.152 Mbit/s; otherwise identical register map and pinout | Required for higher-speed SPI hosts or IrDA MIR-compatible optical links; not needed for 115.2 kbit/s SIR | Select SC16IS762IPW only if 15 Mbit/s SPI or 1.152 Mbit/s IrDA is required; SC16IS752IPW,128 suffices for standard SIR and ≤4 Mbit/s SPI |
| MAX3107ETJ+ | Single-channel UART with SPI only; no I²C support; 128-byte FIFO; integrated ±15 kV ESD protection | Lacks dual-channel capability and I²C interface; suited for space-constrained single-peripheral designs with high ESD immunity needs | Choose MAX3107ETJ+ when only one UART is needed and robustness against ESD events is critical; SC16IS752IPW,128 remains optimal for dual-channel, I²C/SPI flexibility |
Compared with SC16IS762IPW, the SC16IS752IPW,128 offers identical dual UART functionality at lower SPI speed and reduced IrDA throughput - making it more cost-effective for standard SIR and sub-4 Mbit/s SPI systems. Versus MAX3107ETJ+, it delivers channel count, interface flexibility, and GPIO expansion essential for multi-peripheral industrial gateways.
Availability
SC16IS752IPW,128 is available at Aetrix Electronics and suitable for factory automation, portable diagnostics, and smart energy metering requiring stable component supply and long-term industrial lifecycle support.
Supply support for SC16IS752IPW,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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.
The SC16IS752IPW,128 belongs to NXP's serial interface bridge portfolio, designed specifically to simplify protocol translation between modern microcontrollers and legacy serial peripherals in space- and power-constrained systems.
FAQ
What interface protocols does the SC16IS752IPW,128 support?
The SC16IS752IPW,128 supports both I²C-bus (Fast-mode, up to 400 kbit/s) and SPI (Mode 0, up to 4 Mbit/s) interfaces. Interface selection is controlled by the I2C/SPI pin: logic HIGH selects I²C mode, logic LOW selects SPI mode. Pin functions (e.g., SDA vs. SO) are dynamically reassigned based on this configuration, and the register set remains identical across both modes.
Does the SC16IS752IPW,128 support IrDA communication?
Yes, the SC16IS752IPW,128 includes built-in IrDA SIR encoder/decoder supporting data rates up to 115.2 kbit/s. This capability is native to the SC16IS752 variant and does not require external components. It is distinct from the SC16IS762, which supports up to 1.152 Mbit/s - the SC16IS752IPW,128 is optimized for standard SIR-compliant infrared links.
How many GPIO pins does the SC16IS752IPW,128 provide, and can they be used as modem control signals?
The SC16IS752IPW,128 provides eight bidirectional GPIO pins (GPIO0 through GPIO7). These can be configured either as general-purpose I/O or as modem control signals (e.g., DTRB, DSRA, RIA) via the IOControl register. For example, GPIO5/DTRA and GPIO4/DSRA are dedicated to channel A modem handshaking, enabling direct RS-232/RS-485 transceiver control without external logic.
What is the maximum baud rate supported by the SC16IS752IPW,128?
The SC16IS752IPW,128 supports baud rates up to 5 Mbit/s in 16× clock mode. This maximum rate assumes an appropriate crystal or external clock source driving XTAL1, and proper divisor programming in the DLL/DLH registers. Actual achievable rate depends on system clock stability and peripheral timing margins, but 5 Mbit/s is the documented upper limit for reliable operation per the datasheet.
Is the SC16IS752IPW,128 pin-compatible with the SC16IS762IPW?
Yes, the SC16IS752IPW,128 and SC16IS762IPW share identical TSSOP28 pinouts, register maps, and functional behavior - differing only in SPI clock speed (4 Mbit/s vs. 15 Mbit/s) and IrDA SIR rate (115.2 kbit/s vs. 1.152 Mbit/s). This allows direct PCB-level substitution where the higher-performance features of the SC16IS762IPW are not required.
SC16IS752IPW,128 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Programmable:
- Not Verified
- Protocol:
- RS232, RS485
- Function:
- Controller
- Interface:
- I2C, SPI, UART
- Standards:
- -
- Voltage - Supply:
- 2.5V, 3.3V
- Current - Supply:
- 2mA
- Operating Temperature:
- -40°C ~ 95°C
- Supplier Device Package:
- 28-TSSOP
- Grade:
- -
- Qualification:
- -
SC16IS752IPW,128 FAQ
1.How can I place an order for SC16IS752IPW,128 through Aetrix?
Please submit a Request for Quotation (RFQ) for SC16IS752IPW,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 SC16IS752IPW,128 reliable?
The price and inventory of SC16IS752IPW,128 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC16IS752IPW,128 is usually 5 days.
3.What payment methods are accepted for SC16IS752IPW,128?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC16IS752IPW,128 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC16IS752IPW,128?
SC16IS752IPW,128 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC16IS752IPW,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 SC16IS752IPW,128?
For technical support, including SC16IS752IPW,128 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC16IS752IPW,128 requirements.
6.How does Aetrix verify that SC16IS752IPW,128 is sourced from the original manufacturer or authorized distributors?
All SC16IS752IPW,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 SC16IS752IPW,128 meets industry standards.
7.What is the process for return or replacement of SC16IS752IPW,128?
All SC16IS752IPW,128 units undergo pre-shipment inspection (PSI). If there is an issue with SC16IS752IPW,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 SC16IS752IPW,128 part is unused and in its original packaging.
Return procedure for SC16IS752IPW,128:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SC16IS752IPW,128 Tags
-
PTN5150AHXMP
NXP Semiconductors
-
USB3740B-AI9-TR
Microchip Technology
-
USB3740B-AI2-TR
Microchip Technology
-
USB3300-EZK-TR
Microchip Technology
-
USB3300-EZK
Microchip Technology
-
FUSB340TMX
onsemi
-
FUSB302BMPX
onsemi
-
DP83826IRHBR
Texas Instruments
-
MCP2518FDT-E/QBB
Microchip Technology
-
FUSB302MPX
onsemi
-
MCP2518FDT-E/SL
Microchip Technology
-
FT260Q-R
FTDI, Future Technology Devices International Ltd
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
