Overview
The TL16C552FNRG4, produced by Texas Instruments, is an enhanced dual-channel version of the popular TL16C550 asynchronous communications element (ACE). This device serves two serial input/output interfaces simultaneously in microcomputer or microprocessor-based systems. It supports IBM PC/AT-compatible computers by providing a single device to serve the three system ports: two serial ports and one parallel port. The TL16C552 includes a programmable baud rate generator and 16-byte FIFOs for each channel, reducing CPU interrupts and enhancing system efficiency.
Key Specifications
| Specification | Value |
|---|---|
| Package | 68-pin PLCC (FN) |
| Operating Temperature Range | 0 to 70°C |
| Supply Voltage | 5 V ±5% |
| FIFO Size | 16 bytes per channel |
| Baud Rate Generator | Programmable, divides timing reference clock by 1 to (2^16 - 1) |
| Character Format | 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 |
| Modem Control Signals | Individual control for each channel |
| Parallel Port | Fully bidirectional, supports Centronics-type printer |
Key Features
- IBM PC/AT compatible
- Two TL16C550 ACEs with enhanced bidirectional printer port
- 16-byte FIFOs for each channel to reduce CPU interrupts
- Independent control of transmit, receive, line status, and data set interrupts on each channel
- Individual modem control signals for each channel
- Programmable serial interface characteristics for each channel
- 3-state TTL drive for the data and control bus on each channel
- Hardware and software compatible with TL16C452
Applications
The TL16C552FNRG4 is suitable for use in various microcomputer or microprocessor-based systems that require multiple serial and parallel communication interfaces. It is particularly useful in IBM PC/AT-compatible systems where it can serve as a single device for the three system ports. Applications include industrial control systems, embedded systems, and any environment requiring robust and flexible serial and parallel communication capabilities.
Q & A
- What is the TL16C552FNRG4 used for?
The TL16C552FNRG4 is used as a dual-channel asynchronous communications element (ACE) in microcomputer or microprocessor-based systems, providing two serial and one parallel communication interfaces. - What is the operating temperature range of the TL16C552FNRG4?
The operating temperature range is 0 to 70°C. - What type of package does the TL16C552FNRG4 come in?
The TL16C552FNRG4 comes in a 68-pin PLCC (FN) package. - What is the FIFO size for each channel?
Each channel has a 16-byte FIFO. - Is the TL16C552FNRG4 compatible with IBM PC/AT systems?
Yes, it is IBM PC/AT compatible. - What are the programmable baud rate generator capabilities?
The baud rate generator can divide the timing reference clock input by a divisor between 1 and (2^16 - 1). - What character formats are supported by the TL16C552FNRG4?
It supports 5-, 6-, 7-, or 8-bit characters with even-, odd-, or no-parity bit generation and detection, and 1-, 1 1/2-, or 2-stop bit generation. - Does the TL16C552FNRG4 have individual modem control signals for each channel?
Yes, it has individual modem control signals for each channel. - What is the purpose of the parallel port on the TL16C552FNRG4?
The parallel port is fully bidirectional and supports Centronics-type printers. - Is the TL16C552FNRG4 hardware and software compatible with other models?
Yes, it is hardware and software compatible with the TL16C452.
