SC16IS740IPW: Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support

The SC16IS740/750/760 is a slave I²C-bus/SPI interface to a single-channel high performance UART. It offers data rates up to 5 Mbit/s and guarantees low operating and sleeping current. The SC16IS750 and SC16IS760 also provide the application with 8 additional programmable I/O pins. The device comes in very small HVQFN24, TSSOP24 (SC16IS750/760) and TSSOP16 (SC16IS740) packages, which makes it ideally suitable for handheld, battery operated applications. This family of products enables seamless protocol conversion from I²C-bus or SPI to and RS-232/RS-485 and are fully bidirectional.

The SC16IS760 differs from the SC16IS750 in that it supports SPI clock speeds up to 15 Mbit/s instead of the 4 Mbit/s supported by the SC16IS750, and in that it supports IrDA SIR up to 1.152 Mbit/s. In all other aspects, the SC16IS760 is functionally and electrically the same as the SC16IS750. The SC16IS740 is functionally and electrically identical to the SC16IS750, with the exception of the programmable I/O pins which are only present on the SC16IS750.

The SC16IS740/750/760’s internal register set is backward-compatible with the widely used and widely popular 16C450. This allows the software to be easily written or ported from another platform.

The SC16IS740/750/760 also provides additional advanced features such as auto hardware and software flow control, automatic RS-485 support, and software reset. This allows the software to reset the UART at any moment, independent of the hardware reset signal.

SC16IS740IPW: Product Block Diagram
SC16IS740IPW: Block Diagram
Outline 3d SOT403-1
General features
  • Single full-duplex UART
  • Selectable I²C-bus or SPI interface
  • 3.3 V or 2.5 V operation
  • Industrial temperature range: -40 ºC to +95 ºC
  • 64 bytes FIFO (transmitter and receiver)
  • Fully compatible with industrial standard 16C450 and equivalent
  • Baud rates up to 5 Mbit/s in 16× clock mode
  • Auto hardware flow control using RTS/CTS
  • Auto software flow control with programmable Xon/Xoff characters
  • Single or double Xon/Xoff characters
  • Automatic RS-485 support (automatic slave address detection)
  • Up to eight programmable I/O pins (SC16IS750 and SC16IS760 only)
  • RS-485 driver direction control via RTS signal
  • RS-485 driver direction control inversion
  • Built-in IrDA encoder and decoder interface
  • SC16IS750 supports IrDA SIR with speeds up to 115.2 kbit/s
  • SC16IS760 supports IrDA SIR with speeds up to 1.152 Mbit/s
  • Software reset
  • Transmitter and receiver can be enabled/disabled independent of each other
  • Receive and Transmit FIFO levels
  • Programmable special character detection
  • Fully programmable character formatting 5-bit, 6-bit, 7-bit or 8-bit character Even, odd, or no parity 1, 1½, or 2 stop bits
  • Line break generation and detection
  • Internal Loopback mode
  • Sleep current less than 30 µA at 3.3 V
  • Industrial and commercial temperature ranges
  • Available in HVQFN24, TSSOP24 (SC16IS750/760) and TSSOP16 (SC16IS740) packages
I²C-bus features
  • Noise filter on SCL/SDA inputs
  • 400 kbit/s maximum speed
  • Compliant with I²C-bus fast speed
  • Slave mode only
SPI features
  • SC16IS750 supports 4 Mbit/s maximum SPI clock speed
  • SC16IS760 supports 15 Mbit/s maximum SPI clock speed
  • Slave mode only
  • SPI Mode 0
Data Sheets (1)
Name/DescriptionModified Date
Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support (REV 7.0) PDF (548.0 kB) SC16IS740_750_76009 Jun 2011
Application Notes (8)
Name/DescriptionModified Date
Interfacing NXP® bridge IC with NXP ARM microcontroller (REV 1.0) PDF (65.0 kB) AN1058721 Jun 2016
Sleep programming for NXP® bridge ICs (REV 1.0) PDF (42.0 kB) AN1057108 Jan 2007
SC16IS760/762 Fast IrDA mode (REV 1.0) PDF (42.0 kB) AN1041708 Jun 2006
SDA pin connection in SPI mode (REV 1.0) PDF (33.0 kB) AN1048502 Jun 2006
Automatic RS-485 address detection (REV 1.0) PDF (33.0 kB) AN1048602 Jun 2006
SPI programming for Philips Bridge ICs (REV 1.0) PDF (51.0 kB) AN1046201 Jun 2006
Interfacing Philips Bridge IC with Philips microcontroller (REV 1.0) PDF (72.0 kB) AN1045217 May 2006
UART-SPI Gateway for Philips SPI slave bridges (REV 1.0) PDF (84.0 kB) AN1042806 Mar 2006
Brochures (1)
Name/DescriptionModified Date
Low-power bridges for I2C or SPI to UART or IrDA or GPIO; NXP® low-power bridges SC16IS750/52/60/62 (REV 1.0) PDF (204.0 kB) 7501567601 Sep 2006
White Papers (1)
Name/DescriptionModified Date
What's New in I2C GPIO Devices (REV 1.0) PDF (106.0 kB) WHAT_IS_NEW_IN_I2C_GPIO_DEVICES04 Apr 2016
Package Information (1)
Name/DescriptionModified Date
plastic thin shrink small outline package; 16 leads; body width 4.4 mm (REV 1.0) PDF (300.0 kB) SOT403-108 Feb 2016
Packing (1)
Name/DescriptionModified Date
TSSOP16; Reel pack; SMD, 13", Turned Q4/T2 180 deg product orientation Orderable part number ending ,128 or HP ... (REV 2.0) PDF (255.0 kB) SOT403-1_12814 Oct 2014
Supporting Information (1)
Name/DescriptionModified Date
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE08 Oct 2009
Ordering Information
ProductStatusStatusBudgetary Price excluding tax(US$)Package Type and Termination CountGPIOsQualification Tier
SC16IS740IPW/Q900Active
SC16IS740IPWActive
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateEFRIFR(FIT)MTBF(hour)MSLMSL LF
SC16IS740IPWSOT403-1SSOP-TSSOP-VSO-WAVEReel 13" Q2/T3ActiveSC16IS740IPW,128 (9352 809 88128)16IS740SC16IS740IPWAlways Pb-free0.02.05E811
Bulk PackActiveSC16IS740IPW,112 (9352 809 88112)16IS740SC16IS740IPWAlways Pb-free0.02.05E811
SC16IS740IPW/Q900SOT403-1SSOP-TSSOP-VSO-WAVEReel 13" Q2/T3ActiveSC16IS740IPW/Q900, (9352 929 42128)16IS740SC16IS740IPW/Q900Always Pb-free0.02.05E811