ST16C1550 UART with 16-Byte FIFOs

The ST16C1550, ST16C1551 series (here on denoted as the 155X) is a universal asynchronous receiver and transmitter (UART). The 155X is an improved version of the SSI 73M1550 and SSI 73M2550 UART with higher operating speed and lower access time. The 155X provides enhanced UART functions with 16 byte FIFOs, a modem control interface, independent programmable baud rate generators with clock rates to 1.5 Mbps. Onboard status registers provide the user with error indications and operational status. System interrupts and modem control features may be tailored by external software to meetspecific user requirements. An internal loopback capability allows onboard diagnostics. The 155X is available in a 28-pin PLCC/plastic-DIP, 48-pin TQFP packages. The Baud rate generator can be configured for either crystal or external clock input with the exception of the 28 pin 1551 package. An external clock must be provided for the 28 pin 1551 package. Each package type, with the exception of the 28 pin 1550, provides a buffered reset output that can be controlled through user software. DMA monitor signals TXRDY/RXRDY are not available at the 155X I/O pins but these signals are accessible through ISR register bits 4-5. Except as listed above, each package version has the same features. The 155X is functionally compatible with the 16C550. The 155X is fabricated in an advanced CMOS process to achieve low drain power and high speed requirements.

技术特性
  • Pin compatible to SSI 73M1550/2550/Software compatible INS8250, NS16450
  • 1.5 Mbps transmit/receive operation (24MHz Max.) with programmable clock control
  • Modem control signals (-CTS, -RTS, -DSR, -DTR, -RI, -CD)
  • Programmable character lengths (5, 6, 7, 8) with even, odd, or no parity
  • Four levels of prioritized interrupts, minimize external software interaction
  • Software controlled tri-state interrupt outputs
  • Provides enhanced 16C450 features for power down and software controllable reset output
  • Crystal or external clock input
  • 460.8 Kbps transmit/receive operation with 7.3728 MHz crystal or external clock source
  • Pb-Free, RoHS Compliant Versions Offered
应用领域 APPLICATION
  • Portable Appliances
  • Telecommunication Network Routers
  • Ethernet Network Routers
  • Cellular Data Devices
  • Factory Automation and Process Controls

 

技术指标
中央处理器接口 Intel
频道 1
数据传输速率@5/3.3/2.5V 1.5/0.5/na
Max Data Rate @ 5/3.3/2.5/1.8V (Mbps) 1.5/0.5/na/na
发送器/接收器FIFO(Bytes) 16/16
发送器/接收器FIFOCtrs No
发送器/接收器FIFOINT Trig 4 Levels/ 4 Levels
自动RTS/CTS No
IrDa供应 No
5VTol输入 No
电压供应 2.97-5.5
封装 PLCC-28, TQFP-48
功能框图 Functional Block Diagram

ST16C1550 功能框图

订购信息 Ordering Information
器件型号 有害物质限制 最低温度 最高温度 状态 立刻购买 申请样片
ST16C1550CV-F 0 70 Active
ST16C1550CVTR-F 0 70 Active
ST16C1550IV-F -40 85 Active
ST16C1550IVTR-F -40 85 Active
应用技术支持与电子电路设计开发资源下载 版本信息 大小
ST16C1550 数据资料DataSheet下载:pdf Rev.V2 2 页