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SCN2681TC1N40中文資料飛利浦?jǐn)?shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

SCN2681TC1N40
廠商型號(hào)

SCN2681TC1N40

功能描述

Dual asynchronous receiver/transmitter DUART

文件大小

114.47 Kbytes

頁(yè)面數(shù)量

14 頁(yè)

生產(chǎn)廠商 NXP Semiconductors
企業(yè)簡(jiǎn)稱

Philips飛利浦

中文名稱

荷蘭皇家飛利浦官網(wǎng)

原廠標(biāo)識(shí)
數(shù)據(jù)手冊(cè)

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更新時(shí)間

2025-3-20 23:09:00

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SCN2681TC1N40規(guī)格書(shū)詳情

DESCRIPTION

The Philips Semiconductors SCN2681 Dual Universal Asynchronous Receiver/Transmitter (DUART) is a single-chip MOS-LSI communications device that provides two independent full-duplex asynchronous receiver/transmitter channels in a single package. The SCN2681T features a faster bus cycle time than the standard SCN2681. The quick bus cycle eliminates or reduces the need for wait states with fast CPUs and permits high throughput in I/O intensive systems. Higher external clock rates may be used with the transmitter, receiver and counter timer which in turn provide greater versatility in baud rate generation. The SCN2681T interfaces directly with microprocessors and may be used in a polled or interrupt driven system.

FEATURES

? Fast bus cycle times reduce or eliminate CPU wait states

? Dual full-duplex asynchronous receiver/transmitters

? Quadruple buffered receiver data registers

? Programmable data format

– 5 to 8 data bits plus parity

– Odd, even, no parity or force parity

– 1, 1.5 or 2 stop bits programmable in 1/16-bit increments

? 16-bit programmable Counter/Timer

? Programmable baud rate for each receiver and transmitter selectable from:

– 22 fixed rates: 50 to 115.2k baud

– Non-standard rates to 115.2

– Non-standard user-defined rate derived from programmable counter/timer

– External 1X or 16X clock

? Parity, framing, and overrun error detection

? False start bit detection

? Line break detection and generation

? Programmable channel mode

– Normal (full-duplex)

– Automatic echo

– Local loopback

– Remote loopback

? Multi-function programmable 16-bit counter/timer

? Multi-function 7-bit input port

– Can serve as clock or control inputs

– Change of state detection on four inputs

– 100k? typical pull-up resistors

? Multi-function 8-bit output port

– Individual bit set/reset capability

– Outputs can be programmed to be status/interrupt signals

? Versatile interrupt system

– Single interrupt output with eight maskable interrupting conditions

– Output port can be configured to provide a total of up to six separate wire-ORable interrupt outputs

? Maximum data transfer rates: 1X – 1MB/sec transmitter and receiver; 16X – 500kB/sec receiver and 250kB/sec transmitter

? Automatic wake-up mode for multidrop applications

? Start-end break interrupt/status

? Detects break which originates in the middle of a character

? On-chip crystal oscillator

? Single +5V power supply

? Commercial and industrial temperature ranges available

產(chǎn)品屬性

  • 型號(hào):

    SCN2681TC1N40

  • 制造商:

    PHILIPS

  • 制造商全稱:

    NXP Semiconductors

  • 功能描述:

    Dual asynchronous receiver/transmitter DUART

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