Overview
The TL16C554AIPNR is an enhanced quadruple version of the TL16C550C asynchronous-communications element (ACE) produced by Texas Instruments. This component is designed to perform 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. Each channel of the quadruple ACE can be read by the CPU at any time during operation, providing complete status and error condition information.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 80-pin LQFP (PN) |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage | 3.3 V and 5 V |
| Clock Rate | Up to 16 MHz |
| Baud Rate | Up to 1 Mbaud |
| FIFO Size | 16 bytes (plus three bits of error data per byte) |
| Number of Channels | 4 |
| Character Length | 5-, 6-, 7-, or 8-bit characters |
| Parity Bit | Even-, Odd-, or No-Parity |
| Stop Bit Generation | 1-, 1 1/2-, or 2-Stop Bit |
Key Features
- Integrated Asynchronous-Communications Element with four improved TL16C550C ACEs plus steering logic.
- In FIFO mode, each ACE transmitter and receiver is buffered with 16-byte FIFOs 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, line break generation and detection, and internal diagnostic capabilities.
- Fully prioritized interrupt system controls and modem control functions (CTS, RTS, DSR, DTR, RI, and DCD).
- 3-State outputs providing TTL drive capabilities for bidirectional data bus and control bus.
- Programmable auto-RTS and auto-CTS for efficient serial-data flow control.
Applications
The TL16C554AIPNR is suitable for a variety of applications requiring multiple asynchronous communication channels, such as:
- Industrial automation systems.
- Embedded systems requiring serial communication.
- Modem and serial interface cards.
- Point-of-sale terminals and other serial communication devices.
- Network devices and routers.
Q & A
- What is the TL16C554AIPNR?
The TL16C554AIPNR is a quadruple asynchronous-communications element (ACE) produced by Texas Instruments, designed for serial-to-parallel and parallel-to-serial data conversion.
- What package options are available for the TL16C554A?
The TL16C554A is available in 68-pin PLCC FN, 64-pin PQFP PM, and 80-pin TQFP PN packages.
- What is the operating temperature range of the TL16C554AIPNR?
The operating temperature range is -40°C to 85°C.
- What are the supply voltage options for the TL16C554AIPNR?
The component supports both 3.3 V and 5 V supply voltages.
- What is the maximum baud rate supported by the TL16C554AIPNR?
The maximum baud rate supported is up to 1 Mbaud.
- What is the size of the FIFO in the TL16C554AIPNR?
Each channel has a 16-byte FIFO (plus three bits of error data per byte).
- Does the TL16C554AIPNR support programmable baud-rate generators?
Yes, it includes programmable baud-rate generators that can divide the input reference clock by 1 to 2^16 - 1.
- What are the modem control functions supported by the TL16C554AIPNR?
The component supports modem control functions including CTS, RTS, DSR, DTR, RI, and DCD.
- How does the autoflow control feature work in FIFO mode?
In FIFO mode, the autoflow control feature automatically controls serial-data flow using RTS output and CTS input signals, reducing software overhead and increasing system efficiency.
- What are the interrupt capabilities of the TL16C554AIPNR?
The component has a fully prioritized interrupt system with independently controlled transmit, receive, line status, and data set interrupts.
