SC16IS741IPW: Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support

The SC16IS741 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 device comes in the TSSOP16 package, which makes it ideally suitable for handheld, battery operated applications. This device enables seamless protocol conversion from I²C-bus or SPI to and RS-232/RS-485 and are fully bidirectional.

The SC16IS741’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 SC16IS741 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.

Outline 3d SOT403-1
2.1 General features
  • Single full-duplex UART
  • Selectable I²C-bus or SPI interface
  • 3.3 V or 2.5 V operation
  • Industrial temperature range: -40 ℃ to +95 ℃
  • 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)
  • RS-485 driver direction control via RTS signal
  • RS-485 driver direction control inversion
  • Built-in IrDA encoder and decoder interface
  • 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 the TSSOP16 package
2.2 I²C-bus features
  • Noise filter on SCL/SDA inputs
  • 400 kbit/s maximum speed
  • Compliant with I²C-bus fast speed
  • Slave mode only
2.3 SPI features
  • 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 1.0) PDF (382.0 kB) SC16IS74129 Apr 2010
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 (2)
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
TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (218.0 kB) SOT403-1_11808 Apr 2013
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
SC16IS741IPWActive
SC16IS741IPW/Q900No Longer Manufactured
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateEFRIFR(FIT)MTBF(hour)MSLMSL LF
SC16IS741IPWSOT403-1SSOP-TSSOP-VSO-WAVEBulk PackActiveSC16IS741IPW,112 (9352 907 36112)Standard MarkingSC16IS741IPWAlways Pb-free0.02.05E811
Reel 13" Q2/T3ActiveSC16IS741IPW,128 (9352 907 36128)Standard MarkingSC16IS741IPWAlways Pb-free0.02.05E811
Reel 13" Q1/T1ActiveSC16IS741IPW,118 (9352 907 36118)Standard MarkingSC16IS741IPWAlways Pb-free0.02.05E811
Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support sc16is741ipw
Reel 13" Q1/T1 LPC812M101JDH16
SSOP-TSSOP-VSO-WAVE LPC1114FDH28
TSSOP16; Reel pack; SMD, 13", Turned Q4/T2 180 deg product orientation Orderable part number ending ,128 or HP ... sc18im700ipw
Footprint for reflow soldering SOT403-1 PCA9633
plastic thin shrink small outline package; 16 leads; body width 4.4 mm PCA9633