NXP Semiconductors
SC16IS741A
Single UART with I
2
C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
© NXP B.V. 2013. All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 18 March 2013
Document identifier: SC16IS741A
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
23. Contents
1 General description. . . . . . . . . . . . . . . . . . . . . . 1
2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1
2.1 General features. . . . . . . . . . . . . . . . . . . . . . . . 1
2.2 I
2
C-bus features . . . . . . . . . . . . . . . . . . . . . . . . 2
2.3 SPI features . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Ordering information. . . . . . . . . . . . . . . . . . . . . 2
4.1 Ordering options. . . . . . . . . . . . . . . . . . . . . . . . 2
5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6 Pinning information. . . . . . . . . . . . . . . . . . . . . . 4
6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
7 Functional description . . . . . . . . . . . . . . . . . . . 5
7.1 Trigger levels . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7.2 Hardware flow control. . . . . . . . . . . . . . . . . . . . 6
7.2.1 Auto RTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.2.2 Auto CTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.3 Software flow control . . . . . . . . . . . . . . . . . . . . 8
7.3.1 RX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.3.2 TX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.4 Hardware reset, Power-On Reset (POR) and
software reset. . . . . . . . . . . . . . . . . . . . . . . . . 10
7.5 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.5.1 Interrupt mode operation . . . . . . . . . . . . . . . . 12
7.5.2 Polled mode operation . . . . . . . . . . . . . . . . . . 12
7.6 Sleep mode . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.7 Break and time-out conditions . . . . . . . . . . . . 13
7.8 Programmable baud rate generator . . . . . . . . 13
8 Register descriptions . . . . . . . . . . . . . . . . . . . 16
8.1 Receive Holding Register (RHR) . . . . . . . . . . 19
8.2 Transmit Holding Register (THR) . . . . . . . . . . 19
8.3 FIFO Control Register (FCR) . . . . . . . . . . . . . 19
8.4 Line Control Register (LCR) . . . . . . . . . . . . . . 20
8.5 Line Status Register (LSR). . . . . . . . . . . . . . . 22
8.6 Modem Control Register (MCR). . . . . . . . . . . 23
8.7 Modem Status Register (MSR). . . . . . . . . . . . 24
8.8 Interrupt Enable Register (IER) . . . . . . . . . . . 25
8.9 Interrupt Identification Register (IIR). . . . . . . . 26
8.10 Enhanced Features Register (EFR) . . . . . . . . 27
8.11 Division registers (DLL, DLH). . . . . . . . . . . . . 27
8.12 Transmission Control Register (TCR). . . . . . . 28
8.13 Trigger Level Register (TLR) . . . . . . . . . . . . . 28
8.14 Transmitter FIFO Level register (TXLVL) . . . . 28
8.15 Receiver FIFO Level register (RXLVL) . . . . . . 29
8.16 Extra Features Control Register (EFCR) . . . . 29
9 RS-485 features . . . . . . . . . . . . . . . . . . . . . . . . 30
9.1 Auto RS-485 RTS
control . . . . . . . . . . . . . . . 30
9.2 RS-485 RTS output inversion . . . . . . . . . . . . 30
9.3 Auto RS-485 . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.3.1 Normal multidrop mode . . . . . . . . . . . . . . . . . 30
9.3.2 Auto address detection . . . . . . . . . . . . . . . . . 31
10 I
2
C-bus operation . . . . . . . . . . . . . . . . . . . . . . 31
10.1 Data transfers . . . . . . . . . . . . . . . . . . . . . . . . 31
10.2 Addressing and transfer formats . . . . . . . . . . 33
10.3 Addressing. . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10.3.1 SC16IS741A address decoder . . . . . . . . . . . 35
10.4 Use of subaddresses . . . . . . . . . . . . . . . . . . . 36
11 SPI operation. . . . . . . . . . . . . . . . . . . . . . . . . . 38
12 Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 39
13 Static characteristics . . . . . . . . . . . . . . . . . . . 39
14 Dynamic characteristics. . . . . . . . . . . . . . . . . 41
15 Package outline. . . . . . . . . . . . . . . . . . . . . . . . 47
16 Handling information . . . . . . . . . . . . . . . . . . . 48
17 Soldering of SMD packages. . . . . . . . . . . . . . 48
17.1 Introduction to soldering. . . . . . . . . . . . . . . . . 48
17.2 Wave and reflow soldering. . . . . . . . . . . . . . . 48
17.3 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . 48
17.4 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 49
18 Soldering: PCB footprints . . . . . . . . . . . . . . . 51
19 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 52
20 Revision history . . . . . . . . . . . . . . . . . . . . . . . 52
21 Legal information . . . . . . . . . . . . . . . . . . . . . . 53
21.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 53
21.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
21.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 53
21.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 54
22 Contact information . . . . . . . . . . . . . . . . . . . . 54
23 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

SC16IS741AIPWJ

Mfr. #:
Manufacturer:
NXP Semiconductors
Description:
UART Interface IC SC16IS741AIPW/TSSOP16///REEL 13 Q1 NDP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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