TL16C552A--具有16字节FIFO并行端口的双路UA

TL16C552A--具有16字节FIFO并行端口的双路UART芯片

The TL16C552A is an enhanced dual-channel version of the popular TL16C550B asynchronous communications element (ACE). The device serves two serial input/output interfaces simultaneously in microcomputer or microprocessor-based systems. Each channel performs serial-to-parallel conversion on data characters received from peripheral devices or modems and parallel-to-serial conversion on data characters transmitted by the CPU. The complete status of each channel of the dual ACE can be read at any time during functional operation by the CPU. The information obtained includes the type and condition of the transfer operations being performed and the error conditions encountered.

In addition to its dual communications interface capabilities, the TL16C552A provides the user with a bidirectional parallel data port that fully supports the parallel Centronics-type printer interface. The parallel port and the two serial ports provide IBM PC/AT-compatible computers with a single device to serve the three system ports. A programmable baud rate generator that can divide the timing reference clock input by a divisor between 1 and (216 - 1) is included.

The TL16C552A is available in a 68-pin plastic-leaded chip-carrier (FN) package and a 80-pin TQFP (PN) package. The TL16C552AM is available in a 68-pin ceramic quad flat (HV) package.

特性

IBM PC/ATTM Compatible
Two TL16C550 ACEs
Enhanced Bidirectional Printer Port
16-Byte FIFOs Reduce CPU Interrupts
Up to 16-MHz Clock Rate for up to 1-Mbaud Operation
Transmit, Receive, Line Status, and Data Set Interrupts on Each Channel Independently Controlled
Individual Modem Control Signals for Each Channel
Programmable Serial Interface Characteristics for Each Channel:
5-, 6-, 7-, or 8-Bit Characters
Even, Odd, or No Parity Bit Generation and Detection
1-, 1-1/2-, or 2-Stop Bit Generation
3-State Outputs Provide TTL Drive for the Data and Control Bus on Each Channel
Hardware and Software Compatible With TL16C452
IBM PC/AT is a trademark of International Business Machines Corporation.

Number of Channels 2  
FIFOs(bytes) 16  
Operating Voltage(V) 5.0  
Pin/Package 68PLCC, 80LQFP  
Rating Catalog  
Tx / Rx FIFO INT Trig No / 4 Levels  
Auto RTS/CTS Yes  
CPU Interface X86  
Baud Rate (max) at Vcc = 1.8V and with 16X Sampling(Mbps) N/A  
Baud Rate (max) at Vcc = 2.5V and with 16X Sampling(Mbps) N/A  
Baud Rate (max) at Vcc = 3.3V and with 16X Sampling(Mbps) N/A  
Baud Rate (max) at Vcc = 5.0V and with 16X Sampling(Mbps) 1.0  

并行端口芯片字节TL16C552AFIFO

免责声明：本网信息来自于互联网，目的在于传递更多信息，并不代表本网赞同其观点。其原创性以及文中陈述文字和内容未经本站证实，对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺，并请自行核实相关内容。本站不承担此类作品侵权行为的直接责任及连带责任。如若本网有任何内容侵犯您的权益，请及时联系我们，本站将会在24小时内处理完毕。