ST68C554 Quad UART with 16-Byte FIFOs

The ST16C554D is a universal asynchronous receiver and transmitter (UART) with a dual foot print interface. The 554D is an enhanced UART with 16 byte FIFOs, receive trigger levels and data rates up to 1.5Mbps. Onboard status registers provide the user with error indications and operational status, modem interface control. System interrupts may be tailored to meet user requirements. An internal loopback capability allows onboard diagnostics. The 554D is available in 64 pin TQFP and 68 pin PLCC packages. The 68 pin PLCC package offers an additional 68 mode which allows easy integration with Motorola and other popular microprocessors. The ST16C554CQ64 (64 pin) offers three state interrupt control while the ST16C554DCQ64 provides constant active interrupt outputs. The 64 pin devices do not offer TXRDY/ RXRDY outputs. The 554D combines the package interface modes of the 16C554 and 68C554 series on a single integrated chip.

技术特性
  • Not Recommended for New Designs. Refer to ST16C554D for new designs.
  • Compatibility with the Industry Standard ST16C454, ST68C454, ST68C554, TL16C554
  • 1.5 Mbps transmit/receive operation (24MHz)
  • 16 byte transmit FIFO
  • 16 byte receive FIFO with error flags
  • Independent transmit and receive control
  • Software selectable Baud Rate Generator
  • Four selectable Receive FIFO interrupt trigger levels
  • Standard modem interface
  • Pb-Free, RoHS Compliant Versions Offered
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
ST68C554CQ64-F 0 70 Active
ST68C554CQ64TR-F 0 70 Active
ST68C554IQ64-F -40 85 Active
ST68C554IQ64TR-F -40 85 Active
技术指标
中央处理器接口 Motorola
频道 4
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 No/ 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-68
应用领域 APPLICATION
  • Battery Operated Electronics
  • Internet Appliances
  • Handheld Terminal
  • Personal Digital Assistants
  • Cellular Phones DataPort
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
ST68C554 数据资料DataSheet下载:pdf Rev.V2 2 页