SCC2691：通用异步接收器/发送器(UART)

Philips Semiconductors SCC2691通用异步接收器/发送器(UART)是一款单芯片CMOS-LSI通信器件，提供全双工异步接收器/发送器。采用Philips Semiconductors CMOS技术制造，结合了高密度和低功耗优势。

可按18个固定波特率、源自可编程计数器/定时器的16X时钟或外部1X或16X时钟之一单独选择接收器和发送器的工作速度。可从晶体或从外部时钟输入直接操作波特率生成器以及计数器/定时器。接收器和发送器工作速度的独立编程能力使UART特别适合双速通道应用，如集群终端系统。

接收器均经过四重缓冲以使接收器超载的可能性最小化并降低中断驱动系统的中断开销。另外，提供信号交换能力以在接收器缓冲器已满时禁用远程UART发送器。

UART提供节电模式，该模式会冻结振荡器但储存寄存器内容。因而可按几个幅度等级降低功耗。

UART完全兼容TTL并通过单个+5V电源工作。

特性和优势
    • 全双工异步接收器/发送器
    • 四重缓冲接收器数据寄存器
    • 可编程数据格式：
      • 5至8数据位外加奇偶校验
      • 奇、偶、无奇偶校验或强制奇偶校验
      • 可以1/16位的增量对1、1.5或2停止位进行编程
    • 5至8数据位外加奇偶校验
    • 奇、偶、无奇偶校验或强制奇偶校验
    • 可以1/16位的增量对1、1.5或2停止位进行编程
    • 16位可编程计数器/定时器
    • 接收器和发送器可选的波特率为：
      • 22个固定速率：50至115.2k波特
      • 非标准速率至115.2 kb
      • 源自可编程定时器/计数器的非标准用户定义速率
      • 外部1X或16X时钟
    • 22个固定速率：50至115.2k波特
    • 非标准速率至115.2 kb
    • 源自可编程定时器/计数器的非标准用户定义速率
    • 外部1X或16X时钟
    • 奇偶校验、成帧和超载检测
    • 错误起始位检测
    • 线中止的产生和检测
    • 可编程通道模式
      • 正常（全双工）
      • 自动回波
      • 本地环回
      • 远程环回
    • 正常（全双工）
    • 自动回波
    • 本地环回
    • 远程环回
    • 多功能可编程16位计数器/定时器
    • 带有七个可屏蔽中断条件的单中断输出
    • 片上晶体振荡器
    • 低功率模式
    • TTL兼容
    • 单个+5V电源
    • 提供商用（0 Cel至+70 Cel）和工业（-40 Cel至+85 Cel）温度版本
    • 提供SOL、PLCC和300 mil宽DIP封装
产品图片
功能框图
Block diagram: SCC2691AC1A28, SCC2691AC1D24, SCC2691AC1N24, SCC2691AE1A28, SCC2691AE1N24
关键参数
型号Package versionApplicationOperating Temperature (Cel)Number of pinsReceiver/Transmitter typeFunction
SCC2691AC1A28SOT261-2Data Communication0~7028UARTsReceivers/Transmitters
SCC2691AC1D24SOT137-1Data Communication0~7024UARTsReceivers/Transmitters
SCC2691AE1A28SOT261-2Data Communication-40~8524UARTsReceivers/Transmitters
封装与包装
型号封装Outline versionReflow-/Wave soldering包装产品状态标示可订购的器件编号, (订购码 (12NC))
SCC2691AC1A28
PLCC28
(SOT261-2)		sot261-2_poPLCC-WAVEReel 13" Q1/T1 in Drypack量产SCC2691AC1SCC2691AC1A28,518( 9338 115 50518 )
Tube in Drypack量产SCC2691AC1SCC2691AC1A28VP( 9338 115 50529 )
Tube in Drypack量产SCC2691AC1SCC2691AC1A28,512( 9338 115 50512 )
SCC2691AC1D24
SO24
(SOT137-1)		sot137-1_posot137-1_fr
SO-SOJ-WAVE		Reel 13" Q1/T1 in Drypack量产SCC2691AC1D24SCC2691AC1D24,518( 9350 027 30518 )
Tube in Drypack量产SCC2691AC1D24SCC2691AC1D24,529( 9350 027 30529 )
Tube in Drypack量产SCC2691AC1D24SCC2691AC1D24,512( 9350 027 30512 )
SCC2691AE1A28
PLCC28
(SOT261-2)		sot261-2_poPLCC-WAVEReel 13" Q1/T1 in Drypack量产SCC2691AE1SCC2691AE1A28,518( 9350 269 70518 )
Tube in Drypack量产SCC2691AE1SCC2691AE1A28,512( 9350 269 70512 )
SCC2691AC1A28
PLCC28
(SOT261-2)		sot261-2_poPLCC-WAVEReel 13" Q1/T1停产SCC2691AC1SCC2691AC1A28,623( 9338 115 50623 )
Tube停产SCC2691AC1SCC2691AC1A28,602( 9338 115 50602 )
Tube停产SCC2691AC1SCC2691AC1A28,129( 9338 115 50129 )
SCC2691AC1A28/G
PLCC28
(SOT261-2)		sot261-2_poPLCC-WAVEReel 13" Q1/T1停产Standard MarkingSCC2691AC1A28/G,11( 9352 789 13118 )
SCC2691AC1D24
SO24
(SOT137-1)		sot137-1_posot137-1_fr
SO-SOJ-WAVE		Reel 13" Q1/T1停产SCC2691AC1D24SCC2691AC1D24,118( 9350 027 30118 )
SCC2691AE1A28
PLCC28
(SOT261-2)		sot261-2_poPLCC-WAVEReel 13" Q1/T1停产SCC2691AE1SCC2691AE1A28,623( 9350 269 70623 )
Tube停产SCC2691AE1SCC2691AE1A28,602( 9350 269 70602 )
Tube停产SCC2691AE1SCC2691AE1A28,129( 9350 269 70129 )
停产信息
型号订购码 (12NC)最后一次购买日期最后一次交货日期替代产品
SCC2691AC1A28933811550623
SCC2691AC1A28933811550602
SCC2691AC1A28933811550129
SCC2691AC1A28/G93527891311831-Dec-1030-Jun-11SCC2691AC1A28
SCC2691AC1A28/N93527851311830-jun-0930-jun-09SCC2691AC1A28
SCC2691AC1D24935002730118
SCC2691AC1D24935002730112
SCC2691AC1D24935002730129
SCC2691AC1D24/N93527851451831-Dec-1030-Jun-11SCC2691AC1D24
SCC2691AE1A28935026970623
SCC2691AE1A28935026970602
SCC2691AE1A28935026970129
无铅环保信息
型号可订购的器件编号RoHS / RHF无铅转换日期EFRIFR (FIT)MTBF（小时）潮湿敏感度等级MSL LF
SCC2691AC1A28SCC2691AC1A28,518Always Pb-free0.03.03.33E833
SCC2691AC1A28SCC2691AC1A28VPAlways Pb-free0.03.03.33E833
SCC2691AC1A28SCC2691AC1A28,512Always Pb-free0.03.03.33E833
SCC2691AC1D24SCC2691AC1D24,518week 11, 20050.03.03.33E823
SCC2691AC1D24SCC2691AC1D24,529week 11, 20050.03.03.33E823
SCC2691AC1D24SCC2691AC1D24,512week 11, 20050.03.03.33E823
SCC2691AE1A28SCC2691AE1A28,518Always Pb-free0.03.03.33E833
SCC2691AE1A28SCC2691AE1A28,512Always Pb-free0.03.03.33E833
SCC2691AC1A28SCC2691AC1A28,623week 12, 20050.03.03.33E811
SCC2691AC1A28SCC2691AC1A28,602week 12, 20050.03.03.33E811
SCC2691AC1A28SCC2691AC1A28,129Always Pb-free0.03.03.33E811
SCC2691AC1A28/GSCC2691AC1A28/G,11Always Pb-free0.03.03.33E811
SCC2691AC1D24SCC2691AC1D24,118Always Pb-free0.03.03.33E81tbf
SCC2691AE1A28SCC2691AE1A28,623week 8, 20050.03.03.33E811
SCC2691AE1A28SCC2691AE1A28,602week 8, 20050.03.03.33E811
SCC2691AE1A28SCC2691AE1A28,129week 8, 20050.03.03.33E811
文档资料
档案名称标题类型格式日期
SCC2691 (中文)Universal asynchronous receiver/transmitter (UART)Data sheetpdf2006-08-04
AN10307UART to Bluetooth interfacingApplication notepdf2004-08-11
AN10353Application of UART in GPS navigation systemApplication notepdf2005-03-01
AN10251Automatic '485' turn-aroundApplication notepdf2003-10-27
AN413Using The Datacomm Product's On-Chip OscillatorApplication notepdf1988-10-02
AN405SCN2681/SCN68681 And SCC2691 Data CommunicationsApplication notepdf1998-09-21
SOT137-1_118SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packingpdf2013-04-12
sot137-1_frFootprint for reflow soldering SOT137-1Reflow solderingpdf2010-01-15
SO-SOJ-WAVEFootprint for wave solderingWave solderingpdf2009-10-08
sot137-1_poplastic small outline package; 24 leads; body width 7.5 mmOutline drawingpdf2009-10-08
sot261-2_poplastic leaded chip carrier; 28 leadsOutline drawingpdf2009-10-08
PLCC-WAVEFootprint for wave solderingWave solderingpdf2009-10-08
订购信息
型号订购码 (12NC)可订购的器件编号
SCC2691AC1A289338 115 50518SCC2691AC1A28,518
SCC2691AC1A289338 115 50529SCC2691AC1A28VP
SCC2691AC1A289338 115 50512SCC2691AC1A28,512
SCC2691AC1D249350 027 30518SCC2691AC1D24,518
SCC2691AC1D249350 027 30529SCC2691AC1D24,529
SCC2691AC1D249350 027 30512SCC2691AC1D24,512
SCC2691AE1A289350 269 70518SCC2691AE1A28,518
SCC2691AE1A289350 269 70512SCC2691AE1A28,512
Universal asynchronous receiver/transmitter (UART) SCC2691
SCC2691
UART to Bluetooth interfacing SC28L92
Application of UART in GPS navigation system SC28L92
AN10251 SC28L92
Using The Datacomm Product's On-Chip Oscillator SCC2692
SCN2681/SCN68681 And SCC2691 Data Communications SCC2691
SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... 74LVC4245A_Q100
Footprint for reflow soldering SOT137-1 PCA9552
Footprint for wave soldering NPIC6C596A_Q100
plastic small outline package; 24 leads; body width 7.5 mm PCA9552
plastic leaded chip carrier; 28 leads SCC2691
Footprint for wave soldering SC28L92
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