Overview
The TL16C552AFNG4, produced by Texas Instruments, is an enhanced dual-channel version of the popular TL16C550B asynchronous communications element (ACE). This 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 TL16C552AFNG4 also includes a fully bidirectional parallel data port that supports the parallel Centronics-type printer interface, making it suitable for IBM PC/AT-compatible computers to serve the three system ports with a single device.
Key Specifications
| Specification | Details |
|---|---|
| Package Type | 68-pin plastic-leaded chip-carrier (FN) |
| Operating Temperature Range | -40°C to 85°C |
| Number of Channels | Dual-channel |
| Clock Rate | Up to 16 MHz |
| Baud Rate | Up to 1 Mbps |
| FIFO Size | 16 bytes per channel |
| Character Length | 5-, 6-, 7-, or 8-bit characters |
| Parity Bit Generation and Detection | Even, odd, or no parity bit |
| Stop Bit Generation | 1-, 1-1/2-, or 2-stop bits |
| Modem Control Signals | Individual modem control signals for each channel |
Key Features
- IBM PC/AT compatible
- Two TL16C550 ACEs integrated
- Enhanced bidirectional printer port supporting Centronics-type printer interface
- 16-byte FIFOs to reduce CPU interrupts
- Programmable baud rate generator with a divisor range of 1 to (2^16 - 1)
- Transmit, receive, line status, and data set interrupts independently controlled for each channel
- Individual modem control signals for each channel
- 3-state outputs providing TTL drive for the data and control bus on each channel
- Hardware and software compatible with TL16C452
Applications
The TL16C552AFNG4 is suitable for various applications in microcomputer or microprocessor-based systems, including:
- IBM PC/AT-compatible computers for serving multiple system ports
- Serial communication interfaces in industrial control systems
- Embedded systems requiring dual serial and parallel communication capabilities
- Printer interfaces and other peripheral device communications
Q & A
- What is the TL16C552AFNG4?
The TL16C552AFNG4 is an enhanced dual-channel asynchronous communications element (ACE) produced by Texas Instruments.
- What type of packages is the TL16C552AFNG4 available in?
The TL16C552AFNG4 is available in a 68-pin plastic-leaded chip-carrier (FN) package and other variants like the 80-pin TQFP (PN) and 68-pin ceramic quad flat (HV) package for the TL16C552AM.
- What is the operating temperature range of the TL16C552AFNG4?
The operating temperature range is -40°C to 85°C.
- What are the key features of the TL16C552AFNG4?
Key features include IBM PC/AT compatibility, dual TL16C550 ACEs, enhanced bidirectional printer port, 16-byte FIFOs, programmable baud rate generator, and individual modem control signals for each channel.
- What is the maximum baud rate supported by the TL16C552AFNG4?
The maximum baud rate supported is up to 1 Mbps with a clock rate of up to 16 MHz.
- Does the TL16C552AFNG4 support parallel communication?
- What are the character length and parity options for the TL16C552AFNG4?
The character length can be 5-, 6-, 7-, or 8-bit characters, and it supports even, odd, or no parity bit generation and detection).
- How does the FIFO in the TL16C552AFNG4 reduce CPU interrupts?
The 16-byte FIFOs reduce CPU interrupts by buffering data, allowing the CPU to handle other tasks while data is being transmitted or received).
- Is the TL16C552AFNG4 compatible with other Texas Instruments devices?
- What are some common applications of the TL16C552AFNG4?
