Overview
The TL16C554A, specifically the TL16C554APNG4, is an enhanced quadruple version of the TL16C550C asynchronous-communications element (ACE) produced by Texas Instruments. This component integrates four improved TL16C550C ACEs along with steering logic, enabling advanced serial communication capabilities. 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 device is designed to minimize system overhead and maximize system efficiency, making it suitable for a variety of applications requiring robust serial communication.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | 80-pin LQFP (PN) |
| Operating Temperature Range | 0°C to 70°C |
| Supply Voltage | 3.3 V and 5 V |
| Number of Channels | 4 |
| Data Rate | Up to 1 Mbps |
| FIFO Size | 16 bytes (plus three bits of error data per byte) |
| Baud Rate Generator | Programmable, divides input reference clock by 1 to (2^16 - 1) |
| Character Length | 5-, 6-, 7-, or 8-bit characters |
| Parity Bit | Even-, odd-, or no-parity bit |
| Stop Bit Generation | 1-, 1 1/2-, or 2-stop bits |
| Interrupts | Independently controlled transmit, receive, line status, and data set interrupts |
Key Features
- Integrated Asynchronous-Communications Element with four improved TL16C550C ACEs and steering logic.
- In FIFO mode, each ACE transmitter and receiver is buffered with a 16-byte FIFO to reduce CPU interrupts.
- Programmable baud-rate generators allowing division of any input reference clock by 1 to (2^16 - 1).
- Full programmability of serial interface characteristics, including character length, parity, and stop bits.
- False start bit detection and complete status reporting capabilities.
- Line break generation and detection, along with internal diagnostic capabilities.
- Modem control functions (CTS, RTS, DSR, DTR, RI, and DCD).
- 3-state outputs providing TTL drive capabilities for bidirectional data and control buses.
- Programmable auto-RTS and auto-CTS for efficient serial-data flow control.
Applications
The TL16C554APNG4 is suitable for various applications requiring robust and flexible serial communication, such as:
- Embedded systems needing multiple serial communication channels.
- Industrial control systems requiring reliable data transmission.
- Telecommunication equipment and modems.
- Point-of-sale terminals and other serial-based peripherals.
- Automotive and aerospace systems where multiple serial interfaces are necessary.
Q & A
- What is the TL16C554APNG4? The TL16C554APNG4 is a quadruple UART (Universal Asynchronous Receiver-Transmitter) with 16-byte FIFOs, produced by Texas Instruments.
- What are the key features of the TL16C554APNG4? It includes integrated asynchronous-communications elements, programmable baud-rate generators, FIFO mode, and full programmability of serial interface characteristics.
- What are the operating voltage and temperature ranges for the TL16C554APNG4? The operating voltage is 3.3 V and 5 V, and the operating temperature range is 0°C to 70°C.
- How many channels does the TL16C554APNG4 support? It supports four independent serial communication channels.
- What is the maximum data rate supported by the TL16C554APNG4? The maximum data rate is up to 1 Mbps.
- Does the TL16C554APNG4 support modem control functions? Yes, it supports modem control functions including CTS, RTS, DSR, DTR, RI, and DCD.
- What is the FIFO size for each channel in the TL16C554APNG4? Each channel has a 16-byte FIFO (plus three bits of error data per byte).
- Can the TL16C554APNG4 be used in industrial control systems? Yes, it is suitable for industrial control systems due to its reliability and robust serial communication capabilities.
- Is the TL16C554APNG4 RoHS compliant? Yes, the TL16C554APNG4 is RoHS compliant.
- What package types are available for the TL16C554APNG4? It is available in an 80-pin LQFP (PN) package.
