Overview
The TL16C552AFNRG4, produced by Texas Instruments, is an enhanced dual-channel asynchronous communications element (ACE) with FIFO. This device is designed to serve two serial input/output interfaces simultaneously in microcomputer or microprocessor-based systems. It 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 TL16C552AFNRG4 is IBM PC/AT compatible and includes a fully bidirectional parallel data port that supports the parallel Centronics-type printer interface.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | 68-pin plastic leaded chip carrier (FN), 80-pin TQFP (PN), 68-pin ceramic quad flat (HV) |
| Clock Rate | Up to 16 MHz |
| FIFO Size | 16 bytes per channel |
| Serial Interface | Dual asynchronous serial channels with programmable baud rate generator |
| Parallel Interface | Bidirectional parallel data port supporting Centronics-type printer |
| Modem Control Signals | Individual modem control signals for each channel (RTS, DTR, CTS, DSR, DCD, RI) |
| Power Supply | 5 V ±5% |
| Temperature Grade | Commercial |
Key Features
- Dual-channel asynchronous communication element with FIFO
- IBM PC/AT compatibility
- Enhanced bidirectional printer port supporting Centronics-type printers
- 16-byte FIFOs to reduce CPU interrupts
- Programmable serial interface characteristics (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)
- Independent control of transmit, receive, line status, and data set interrupts on each channel
- Hardware and software compatibility with TL16C452
Applications
The TL16C552AFNRG4 is suitable for various applications in microcomputer or microprocessor-based systems, including:
- Serial communication interfaces in embedded systems
- Printer interfaces for Centronics-type printers
- Modem control and communication in telecommunications equipment
- Industrial automation and control systems requiring multiple serial and parallel interfaces
Q & A
- What is the TL16C552AFNRG4? The TL16C552AFNRG4 is a dual-channel asynchronous communications element with FIFO, produced by Texas Instruments.
- What are the key features of the TL16C552AFNRG4? It includes dual-channel asynchronous communication, IBM PC/AT compatibility, enhanced bidirectional printer port, 16-byte FIFOs, and programmable serial interface characteristics.
- What types of packages are available for the TL16C552AFNRG4? The device is available in 68-pin plastic leaded chip carrier (FN), 80-pin TQFP (PN), and 68-pin ceramic quad flat (HV) packages.
- What is the maximum clock rate for the TL16C552AFNRG4? The maximum clock rate is up to 16 MHz.
- Does the TL16C552AFNRG4 support modem control signals? Yes, it supports individual modem control signals for each channel.
- What is the power supply requirement for the TL16C552AFNRG4? The power supply requirement is 5 V ±5%.
- What are the typical applications of the TL16C552AFNRG4? It is used in serial communication interfaces, printer interfaces, modem control, and industrial automation systems.
- Is the TL16C552AFNRG4 compatible with other Texas Instruments devices? Yes, it is hardware and software compatible with the TL16C452.
- How does the FIFO in the TL16C552AFNRG4 reduce CPU interrupts? The 16-byte FIFOs reduce CPU interrupts by buffering data, allowing the CPU to handle other tasks without frequent interrupts.
- What is the significance of the bidirectional parallel data port in the TL16C552AFNRG4? The bidirectional parallel data port supports Centronics-type printers and provides a single device to serve the three system ports in IBM PC/AT-compatible computers.
