ST16C552 Dual UART With 16-Byte FIFO and Parallel Printer Port

The ST16C552/ST16C552A (552/552A) is a dual universal asynchronous receiver and transmitter (UART) with an added bi-directional parallel port that is directly compatible with a CENTRONICS type printer. The parallel port is designed such that the user can configure it as general purpose I/O interface, or for connection to other printer devices. The 552/552A provides enhanced UART functions with 16 byte FIFO’s, a modem control interface, and data rates up to 1.5Mbps. Onboard status registers provide the user with error indications and operational status. The system interrupts and control may be tailored to meet user requirements. An internal loop-back capability allows onboard diagnostics. A programmable baud rate generator is provided to select transmit and receive clock rates from 50 bps to 1.5 Mbps. The 552/552A is available in a 68 pin PLCC package. The 552/552A is compatible with the 16C450 and 16C550. The difference between the ST16C552 and ST16C552A is the logic state of the printer port, INTP interrupt. The INTP interrupt is active high (logic 1) on the ST16C552 whereas INTP is active low (logic 0) on the ST16C552A part when the interrupt latch mode is selected. The 552/552A is fabricated in an advanced CMOS process with power down mode to reduce the power consumption. The 552A does not support the power down mode.

技术特性
  • Pin to pin and functional compatible to ST16C452/452PS, TL16C552
  • Software compatible with INS8250, NS16C550
  • 1.5 Mbps transmit/receive operation (24MHz)
  • 16 byte transmit FIFO
  • 16 byte receive FIFO with error flags
  • Independent transmit and receive control
  • Modem and printer status registers
  • UART port and printer port Bi-directional
  • Printer port direction set by single control bit or 8 bit pattern (AA/55)
  • Modem control signals (-CTS, -RTS, -DSR, -DTR, -RI, -CD)
  • Programmable character lengths (5, 6, 7, 8)
  • Even, odd, or no parity bit generation and detection
  • Internal loop-back diagnostics
  • TTL compatible inputs, outputs
  • Power down mode
  • 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
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
ST16C552CJ68-F 0 70 Active
ST16C552CJ68TR-F 0 70 Active
ST16C552IJ68-F -40 85 Active
ST16C552IJ68TR-F -40 85 Active
技术指标
中央处理器接口 Intel
频道 2
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 Yes
电压供应 2.97-5.5
封装 PLCC-68
功能框图 Functional Block Diagram

ST16C552 功能框图

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
ST16C552 数据资料DataSheet下载:pdf Rev.V2 2 页